from sympy import diff, Integral, Limit, sin, Symbol, Integer, Rational, cos, \
    tan, asin, acos, atan, sinh, cosh, tanh, asinh, acosh, atanh, E, I, oo, \
    pi, GoldenRatio, EulerGamma, Sum, Eq, Ne, Ge, Lt, Float, Matrix, Basic, \
    S, MatrixSymbol, Function, Derivative, log, true, false, Range, Min, Max, \
    Lambda, IndexedBase, symbols, zoo, elliptic_f, elliptic_e, elliptic_pi, Ei, \
    expint, jacobi, gegenbauer, chebyshevt, chebyshevu, legendre, assoc_legendre, \
    laguerre, assoc_laguerre, hermite

from sympy import elliptic_k, totient, reduced_totient, primenu, primeomega, \
    fresnelc, fresnels, Heaviside
from sympy.calculus.util import AccumBounds
from sympy.core.containers import Tuple
from sympy.functions.combinatorial.factorials import factorial, factorial2, \
    binomial
from sympy.functions.combinatorial.numbers import bernoulli, bell, lucas, \
    fibonacci, tribonacci, catalan
from sympy.functions.elementary.complexes import re, im, Abs, conjugate
from sympy.functions.elementary.exponential import exp
from sympy.functions.elementary.integers import floor, ceiling
from sympy.functions.special.gamma_functions import gamma, lowergamma, uppergamma
from sympy.functions.special.singularity_functions import SingularityFunction
from sympy.functions.special.zeta_functions import polylog, lerchphi, zeta, dirichlet_eta
from sympy.logic.boolalg import And, Or, Implies, Equivalent, Xor, Not
from sympy.matrices.expressions.determinant import Determinant
from sympy.printing.mathml import mathml, MathMLContentPrinter, \
    MathMLPresentationPrinter, MathMLPrinter
from sympy.sets.sets import FiniteSet, Union, Intersection, Complement, \
    SymmetricDifference, Interval, EmptySet
from sympy.stats.rv import RandomSymbol
from sympy.utilities.pytest import raises
from sympy.vector import CoordSys3D, Cross, Curl, Dot, Divergence, Gradient, Laplacian

x, y, z, a, b, c, d, e, n = symbols('x:z a:e n')
mp = MathMLContentPrinter()
mpp = MathMLPresentationPrinter()


def test_mathml_printer():
    m = MathMLPrinter()
    assert m.doprint(1+x) == mp.doprint(1+x)


def test_content_printmethod():
    assert mp.doprint(1 + x) == '<apply><plus/><ci>x</ci><cn>1</cn></apply>'


def test_content_mathml_core():
    mml_1 = mp._print(1 + x)
    assert mml_1.nodeName == 'apply'
    nodes = mml_1.childNodes
    assert len(nodes) == 3
    assert nodes[0].nodeName == 'plus'
    assert nodes[0].hasChildNodes() is False
    assert nodes[0].nodeValue is None
    assert nodes[1].nodeName in ['cn', 'ci']
    if nodes[1].nodeName == 'cn':
        assert nodes[1].childNodes[0].nodeValue == '1'
        assert nodes[2].childNodes[0].nodeValue == 'x'
    else:
        assert nodes[1].childNodes[0].nodeValue == 'x'
        assert nodes[2].childNodes[0].nodeValue == '1'

    mml_2 = mp._print(x**2)
    assert mml_2.nodeName == 'apply'
    nodes = mml_2.childNodes
    assert nodes[1].childNodes[0].nodeValue == 'x'
    assert nodes[2].childNodes[0].nodeValue == '2'

    mml_3 = mp._print(2*x)
    assert mml_3.nodeName == 'apply'
    nodes = mml_3.childNodes
    assert nodes[0].nodeName == 'times'
    assert nodes[1].childNodes[0].nodeValue == '2'
    assert nodes[2].childNodes[0].nodeValue == 'x'

    mml = mp._print(Float(1.0, 2)*x)
    assert mml.nodeName == 'apply'
    nodes = mml.childNodes
    assert nodes[0].nodeName == 'times'
    assert nodes[1].childNodes[0].nodeValue == '1.0'
    assert nodes[2].childNodes[0].nodeValue == 'x'


def test_content_mathml_functions():
    mml_1 = mp._print(sin(x))
    assert mml_1.nodeName == 'apply'
    assert mml_1.childNodes[0].nodeName == 'sin'
    assert mml_1.childNodes[1].nodeName == 'ci'

    mml_2 = mp._print(diff(sin(x), x, evaluate=False))
    assert mml_2.nodeName == 'apply'
    assert mml_2.childNodes[0].nodeName == 'diff'
    assert mml_2.childNodes[1].nodeName == 'bvar'
    assert mml_2.childNodes[1].childNodes[
        0].nodeName == 'ci'  # below bvar there's <ci>x/ci>

    mml_3 = mp._print(diff(cos(x*y), x, evaluate=False))
    assert mml_3.nodeName == 'apply'
    assert mml_3.childNodes[0].nodeName == 'partialdiff'
    assert mml_3.childNodes[1].nodeName == 'bvar'
    assert mml_3.childNodes[1].childNodes[
        0].nodeName == 'ci'  # below bvar there's <ci>x/ci>


def test_content_mathml_limits():
    # XXX No unevaluated limits
    lim_fun = sin(x)/x
    mml_1 = mp._print(Limit(lim_fun, x, 0))
    assert mml_1.childNodes[0].nodeName == 'limit'
    assert mml_1.childNodes[1].nodeName == 'bvar'
    assert mml_1.childNodes[2].nodeName == 'lowlimit'
    assert mml_1.childNodes[3].toxml() == mp._print(lim_fun).toxml()


def test_content_mathml_integrals():
    integrand = x
    mml_1 = mp._print(Integral(integrand, (x, 0, 1)))
    assert mml_1.childNodes[0].nodeName == 'int'
    assert mml_1.childNodes[1].nodeName == 'bvar'
    assert mml_1.childNodes[2].nodeName == 'lowlimit'
    assert mml_1.childNodes[3].nodeName == 'uplimit'
    assert mml_1.childNodes[4].toxml() == mp._print(integrand).toxml()


def test_content_mathml_matrices():
    A = Matrix([1, 2, 3])
    B = Matrix([[0, 5, 4], [2, 3, 1], [9, 7, 9]])
    mll_1 = mp._print(A)
    assert mll_1.childNodes[0].nodeName == 'matrixrow'
    assert mll_1.childNodes[0].childNodes[0].nodeName == 'cn'
    assert mll_1.childNodes[0].childNodes[0].childNodes[0].nodeValue == '1'
    assert mll_1.childNodes[1].nodeName == 'matrixrow'
    assert mll_1.childNodes[1].childNodes[0].nodeName == 'cn'
    assert mll_1.childNodes[1].childNodes[0].childNodes[0].nodeValue == '2'
    assert mll_1.childNodes[2].nodeName == 'matrixrow'
    assert mll_1.childNodes[2].childNodes[0].nodeName == 'cn'
    assert mll_1.childNodes[2].childNodes[0].childNodes[0].nodeValue == '3'
    mll_2 = mp._print(B)
    assert mll_2.childNodes[0].nodeName == 'matrixrow'
    assert mll_2.childNodes[0].childNodes[0].nodeName == 'cn'
    assert mll_2.childNodes[0].childNodes[0].childNodes[0].nodeValue == '0'
    assert mll_2.childNodes[0].childNodes[1].nodeName == 'cn'
    assert mll_2.childNodes[0].childNodes[1].childNodes[0].nodeValue == '5'
    assert mll_2.childNodes[0].childNodes[2].nodeName == 'cn'
    assert mll_2.childNodes[0].childNodes[2].childNodes[0].nodeValue == '4'
    assert mll_2.childNodes[1].nodeName == 'matrixrow'
    assert mll_2.childNodes[1].childNodes[0].nodeName == 'cn'
    assert mll_2.childNodes[1].childNodes[0].childNodes[0].nodeValue == '2'
    assert mll_2.childNodes[1].childNodes[1].nodeName == 'cn'
    assert mll_2.childNodes[1].childNodes[1].childNodes[0].nodeValue == '3'
    assert mll_2.childNodes[1].childNodes[2].nodeName == 'cn'
    assert mll_2.childNodes[1].childNodes[2].childNodes[0].nodeValue == '1'
    assert mll_2.childNodes[2].nodeName == 'matrixrow'
    assert mll_2.childNodes[2].childNodes[0].nodeName == 'cn'
    assert mll_2.childNodes[2].childNodes[0].childNodes[0].nodeValue == '9'
    assert mll_2.childNodes[2].childNodes[1].nodeName == 'cn'
    assert mll_2.childNodes[2].childNodes[1].childNodes[0].nodeValue == '7'
    assert mll_2.childNodes[2].childNodes[2].nodeName == 'cn'
    assert mll_2.childNodes[2].childNodes[2].childNodes[0].nodeValue == '9'


def test_content_mathml_sums():
    summand = x
    mml_1 = mp._print(Sum(summand, (x, 1, 10)))
    assert mml_1.childNodes[0].nodeName == 'sum'
    assert mml_1.childNodes[1].nodeName == 'bvar'
    assert mml_1.childNodes[2].nodeName == 'lowlimit'
    assert mml_1.childNodes[3].nodeName == 'uplimit'
    assert mml_1.childNodes[4].toxml() == mp._print(summand).toxml()


def test_content_mathml_tuples():
    mml_1 = mp._print([2])
    assert mml_1.nodeName == 'list'
    assert mml_1.childNodes[0].nodeName == 'cn'
    assert len(mml_1.childNodes) == 1

    mml_2 = mp._print([2, Integer(1)])
    assert mml_2.nodeName == 'list'
    assert mml_2.childNodes[0].nodeName == 'cn'
    assert mml_2.childNodes[1].nodeName == 'cn'
    assert len(mml_2.childNodes) == 2


def test_content_mathml_add():
    mml = mp._print(x**5 - x**4 + x)
    assert mml.childNodes[0].nodeName == 'plus'
    assert mml.childNodes[1].childNodes[0].nodeName == 'minus'
    assert mml.childNodes[1].childNodes[1].nodeName == 'apply'


def test_content_mathml_Rational():
    mml_1 = mp._print(Rational(1, 1))
    """should just return a number"""
    assert mml_1.nodeName == 'cn'

    mml_2 = mp._print(Rational(2, 5))
    assert mml_2.childNodes[0].nodeName == 'divide'


def test_content_mathml_constants():
    mml = mp._print(I)
    assert mml.nodeName == 'imaginaryi'

    mml = mp._print(E)
    assert mml.nodeName == 'exponentiale'

    mml = mp._print(oo)
    assert mml.nodeName == 'infinity'

    mml = mp._print(pi)
    assert mml.nodeName == 'pi'

    assert mathml(GoldenRatio) == '<cn>&#966;</cn>'

    mml = mathml(EulerGamma)
    assert mml == '<eulergamma/>'


def test_content_mathml_trig():
    mml = mp._print(sin(x))
    assert mml.childNodes[0].nodeName == 'sin'

    mml = mp._print(cos(x))
    assert mml.childNodes[0].nodeName == 'cos'

    mml = mp._print(tan(x))
    assert mml.childNodes[0].nodeName == 'tan'

    mml = mp._print(asin(x))
    assert mml.childNodes[0].nodeName == 'arcsin'

    mml = mp._print(acos(x))
    assert mml.childNodes[0].nodeName == 'arccos'

    mml = mp._print(atan(x))
    assert mml.childNodes[0].nodeName == 'arctan'

    mml = mp._print(sinh(x))
    assert mml.childNodes[0].nodeName == 'sinh'

    mml = mp._print(cosh(x))
    assert mml.childNodes[0].nodeName == 'cosh'

    mml = mp._print(tanh(x))
    assert mml.childNodes[0].nodeName == 'tanh'

    mml = mp._print(asinh(x))
    assert mml.childNodes[0].nodeName == 'arcsinh'

    mml = mp._print(atanh(x))
    assert mml.childNodes[0].nodeName == 'arctanh'

    mml = mp._print(acosh(x))
    assert mml.childNodes[0].nodeName == 'arccosh'


def test_content_mathml_relational():
    mml_1 = mp._print(Eq(x, 1))
    assert mml_1.nodeName == 'apply'
    assert mml_1.childNodes[0].nodeName == 'eq'
    assert mml_1.childNodes[1].nodeName == 'ci'
    assert mml_1.childNodes[1].childNodes[0].nodeValue == 'x'
    assert mml_1.childNodes[2].nodeName == 'cn'
    assert mml_1.childNodes[2].childNodes[0].nodeValue == '1'

    mml_2 = mp._print(Ne(1, x))
    assert mml_2.nodeName == 'apply'
    assert mml_2.childNodes[0].nodeName == 'neq'
    assert mml_2.childNodes[1].nodeName == 'cn'
    assert mml_2.childNodes[1].childNodes[0].nodeValue == '1'
    assert mml_2.childNodes[2].nodeName == 'ci'
    assert mml_2.childNodes[2].childNodes[0].nodeValue == 'x'

    mml_3 = mp._print(Ge(1, x))
    assert mml_3.nodeName == 'apply'
    assert mml_3.childNodes[0].nodeName == 'geq'
    assert mml_3.childNodes[1].nodeName == 'cn'
    assert mml_3.childNodes[1].childNodes[0].nodeValue == '1'
    assert mml_3.childNodes[2].nodeName == 'ci'
    assert mml_3.childNodes[2].childNodes[0].nodeValue == 'x'

    mml_4 = mp._print(Lt(1, x))
    assert mml_4.nodeName == 'apply'
    assert mml_4.childNodes[0].nodeName == 'lt'
    assert mml_4.childNodes[1].nodeName == 'cn'
    assert mml_4.childNodes[1].childNodes[0].nodeValue == '1'
    assert mml_4.childNodes[2].nodeName == 'ci'
    assert mml_4.childNodes[2].childNodes[0].nodeValue == 'x'


def test_content_symbol():
    mml = mp._print(x)
    assert mml.nodeName == 'ci'
    assert mml.childNodes[0].nodeValue == 'x'
    del mml

    mml = mp._print(Symbol("x^2"))
    assert mml.nodeName == 'ci'
    assert mml.childNodes[0].nodeName == 'mml:msup'
    assert mml.childNodes[0].childNodes[0].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[0].childNodes[1].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[1].childNodes[0].nodeValue == '2'
    del mml

    mml = mp._print(Symbol("x__2"))
    assert mml.nodeName == 'ci'
    assert mml.childNodes[0].nodeName == 'mml:msup'
    assert mml.childNodes[0].childNodes[0].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[0].childNodes[1].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[1].childNodes[0].nodeValue == '2'
    del mml

    mml = mp._print(Symbol("x_2"))
    assert mml.nodeName == 'ci'
    assert mml.childNodes[0].nodeName == 'mml:msub'
    assert mml.childNodes[0].childNodes[0].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[0].childNodes[1].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[1].childNodes[0].nodeValue == '2'
    del mml

    mml = mp._print(Symbol("x^3_2"))
    assert mml.nodeName == 'ci'
    assert mml.childNodes[0].nodeName == 'mml:msubsup'
    assert mml.childNodes[0].childNodes[0].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[0].childNodes[1].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[1].childNodes[0].nodeValue == '2'
    assert mml.childNodes[0].childNodes[2].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[2].childNodes[0].nodeValue == '3'
    del mml

    mml = mp._print(Symbol("x__3_2"))
    assert mml.nodeName == 'ci'
    assert mml.childNodes[0].nodeName == 'mml:msubsup'
    assert mml.childNodes[0].childNodes[0].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[0].childNodes[1].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[1].childNodes[0].nodeValue == '2'
    assert mml.childNodes[0].childNodes[2].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[2].childNodes[0].nodeValue == '3'
    del mml

    mml = mp._print(Symbol("x_2_a"))
    assert mml.nodeName == 'ci'
    assert mml.childNodes[0].nodeName == 'mml:msub'
    assert mml.childNodes[0].childNodes[0].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[0].childNodes[1].nodeName == 'mml:mrow'
    assert mml.childNodes[0].childNodes[1].childNodes[0].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[1].childNodes[0].childNodes[
        0].nodeValue == '2'
    assert mml.childNodes[0].childNodes[1].childNodes[1].nodeName == 'mml:mo'
    assert mml.childNodes[0].childNodes[1].childNodes[1].childNodes[
        0].nodeValue == ' '
    assert mml.childNodes[0].childNodes[1].childNodes[2].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[1].childNodes[2].childNodes[
        0].nodeValue == 'a'
    del mml

    mml = mp._print(Symbol("x^2^a"))
    assert mml.nodeName == 'ci'
    assert mml.childNodes[0].nodeName == 'mml:msup'
    assert mml.childNodes[0].childNodes[0].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[0].childNodes[1].nodeName == 'mml:mrow'
    assert mml.childNodes[0].childNodes[1].childNodes[0].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[1].childNodes[0].childNodes[
        0].nodeValue == '2'
    assert mml.childNodes[0].childNodes[1].childNodes[1].nodeName == 'mml:mo'
    assert mml.childNodes[0].childNodes[1].childNodes[1].childNodes[
        0].nodeValue == ' '
    assert mml.childNodes[0].childNodes[1].childNodes[2].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[1].childNodes[2].childNodes[
        0].nodeValue == 'a'
    del mml

    mml = mp._print(Symbol("x__2__a"))
    assert mml.nodeName == 'ci'
    assert mml.childNodes[0].nodeName == 'mml:msup'
    assert mml.childNodes[0].childNodes[0].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[0].childNodes[1].nodeName == 'mml:mrow'
    assert mml.childNodes[0].childNodes[1].childNodes[0].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[1].childNodes[0].childNodes[
        0].nodeValue == '2'
    assert mml.childNodes[0].childNodes[1].childNodes[1].nodeName == 'mml:mo'
    assert mml.childNodes[0].childNodes[1].childNodes[1].childNodes[
        0].nodeValue == ' '
    assert mml.childNodes[0].childNodes[1].childNodes[2].nodeName == 'mml:mi'
    assert mml.childNodes[0].childNodes[1].childNodes[2].childNodes[
        0].nodeValue == 'a'
    del mml


def test_content_mathml_greek():
    mml = mp._print(Symbol('alpha'))
    assert mml.nodeName == 'ci'
    assert mml.childNodes[0].nodeValue == u'\N{GREEK SMALL LETTER ALPHA}'

    assert mp.doprint(Symbol('alpha')) == '<ci>&#945;</ci>'
    assert mp.doprint(Symbol('beta')) == '<ci>&#946;</ci>'
    assert mp.doprint(Symbol('gamma')) == '<ci>&#947;</ci>'
    assert mp.doprint(Symbol('delta')) == '<ci>&#948;</ci>'
    assert mp.doprint(Symbol('epsilon')) == '<ci>&#949;</ci>'
    assert mp.doprint(Symbol('zeta')) == '<ci>&#950;</ci>'
    assert mp.doprint(Symbol('eta')) == '<ci>&#951;</ci>'
    assert mp.doprint(Symbol('theta')) == '<ci>&#952;</ci>'
    assert mp.doprint(Symbol('iota')) == '<ci>&#953;</ci>'
    assert mp.doprint(Symbol('kappa')) == '<ci>&#954;</ci>'
    assert mp.doprint(Symbol('lambda')) == '<ci>&#955;</ci>'
    assert mp.doprint(Symbol('mu')) == '<ci>&#956;</ci>'
    assert mp.doprint(Symbol('nu')) == '<ci>&#957;</ci>'
    assert mp.doprint(Symbol('xi')) == '<ci>&#958;</ci>'
    assert mp.doprint(Symbol('omicron')) == '<ci>&#959;</ci>'
    assert mp.doprint(Symbol('pi')) == '<ci>&#960;</ci>'
    assert mp.doprint(Symbol('rho')) == '<ci>&#961;</ci>'
    assert mp.doprint(Symbol('varsigma')) == '<ci>&#962;</ci>'
    assert mp.doprint(Symbol('sigma')) == '<ci>&#963;</ci>'
    assert mp.doprint(Symbol('tau')) == '<ci>&#964;</ci>'
    assert mp.doprint(Symbol('upsilon')) == '<ci>&#965;</ci>'
    assert mp.doprint(Symbol('phi')) == '<ci>&#966;</ci>'
    assert mp.doprint(Symbol('chi')) == '<ci>&#967;</ci>'
    assert mp.doprint(Symbol('psi')) == '<ci>&#968;</ci>'
    assert mp.doprint(Symbol('omega')) == '<ci>&#969;</ci>'

    assert mp.doprint(Symbol('Alpha')) == '<ci>&#913;</ci>'
    assert mp.doprint(Symbol('Beta')) == '<ci>&#914;</ci>'
    assert mp.doprint(Symbol('Gamma')) == '<ci>&#915;</ci>'
    assert mp.doprint(Symbol('Delta')) == '<ci>&#916;</ci>'
    assert mp.doprint(Symbol('Epsilon')) == '<ci>&#917;</ci>'
    assert mp.doprint(Symbol('Zeta')) == '<ci>&#918;</ci>'
    assert mp.doprint(Symbol('Eta')) == '<ci>&#919;</ci>'
    assert mp.doprint(Symbol('Theta')) == '<ci>&#920;</ci>'
    assert mp.doprint(Symbol('Iota')) == '<ci>&#921;</ci>'
    assert mp.doprint(Symbol('Kappa')) == '<ci>&#922;</ci>'
    assert mp.doprint(Symbol('Lambda')) == '<ci>&#923;</ci>'
    assert mp.doprint(Symbol('Mu')) == '<ci>&#924;</ci>'
    assert mp.doprint(Symbol('Nu')) == '<ci>&#925;</ci>'
    assert mp.doprint(Symbol('Xi')) == '<ci>&#926;</ci>'
    assert mp.doprint(Symbol('Omicron')) == '<ci>&#927;</ci>'
    assert mp.doprint(Symbol('Pi')) == '<ci>&#928;</ci>'
    assert mp.doprint(Symbol('Rho')) == '<ci>&#929;</ci>'
    assert mp.doprint(Symbol('Sigma')) == '<ci>&#931;</ci>'
    assert mp.doprint(Symbol('Tau')) == '<ci>&#932;</ci>'
    assert mp.doprint(Symbol('Upsilon')) == '<ci>&#933;</ci>'
    assert mp.doprint(Symbol('Phi')) == '<ci>&#934;</ci>'
    assert mp.doprint(Symbol('Chi')) == '<ci>&#935;</ci>'
    assert mp.doprint(Symbol('Psi')) == '<ci>&#936;</ci>'
    assert mp.doprint(Symbol('Omega')) == '<ci>&#937;</ci>'


def test_content_mathml_order():
    expr = x**3 + x**2*y + 3*x*y**3 + y**4

    mp = MathMLContentPrinter({'order': 'lex'})
    mml = mp._print(expr)

    assert mml.childNodes[1].childNodes[0].nodeName == 'power'
    assert mml.childNodes[1].childNodes[1].childNodes[0].data == 'x'
    assert mml.childNodes[1].childNodes[2].childNodes[0].data == '3'

    assert mml.childNodes[4].childNodes[0].nodeName == 'power'
    assert mml.childNodes[4].childNodes[1].childNodes[0].data == 'y'
    assert mml.childNodes[4].childNodes[2].childNodes[0].data == '4'

    mp = MathMLContentPrinter({'order': 'rev-lex'})
    mml = mp._print(expr)

    assert mml.childNodes[1].childNodes[0].nodeName == 'power'
    assert mml.childNodes[1].childNodes[1].childNodes[0].data == 'y'
    assert mml.childNodes[1].childNodes[2].childNodes[0].data == '4'

    assert mml.childNodes[4].childNodes[0].nodeName == 'power'
    assert mml.childNodes[4].childNodes[1].childNodes[0].data == 'x'
    assert mml.childNodes[4].childNodes[2].childNodes[0].data == '3'


def test_content_settings():
    raises(TypeError, lambda: mathml(x, method="garbage"))


def test_presentation_printmethod():
    assert mpp.doprint(1 + x) == '<mrow><mi>x</mi><mo>+</mo><mn>1</mn></mrow>'
    assert mpp.doprint(x**2) == '<msup><mi>x</mi><mn>2</mn></msup>'
    assert mpp.doprint(x**-1) == '<mfrac><mn>1</mn><mi>x</mi></mfrac>'
    assert mpp.doprint(x**-2) == \
        '<mfrac><mn>1</mn><msup><mi>x</mi><mn>2</mn></msup></mfrac>'
    assert mpp.doprint(2*x) == \
        '<mrow><mn>2</mn><mo>&InvisibleTimes;</mo><mi>x</mi></mrow>'


def test_presentation_mathml_core():
    mml_1 = mpp._print(1 + x)
    assert mml_1.nodeName == 'mrow'
    nodes = mml_1.childNodes
    assert len(nodes) == 3
    assert nodes[0].nodeName in ['mi', 'mn']
    assert nodes[1].nodeName == 'mo'
    if nodes[0].nodeName == 'mn':
        assert nodes[0].childNodes[0].nodeValue == '1'
        assert nodes[2].childNodes[0].nodeValue == 'x'
    else:
        assert nodes[0].childNodes[0].nodeValue == 'x'
        assert nodes[2].childNodes[0].nodeValue == '1'

    mml_2 = mpp._print(x**2)
    assert mml_2.nodeName == 'msup'
    nodes = mml_2.childNodes
    assert nodes[0].childNodes[0].nodeValue == 'x'
    assert nodes[1].childNodes[0].nodeValue == '2'

    mml_3 = mpp._print(2*x)
    assert mml_3.nodeName == 'mrow'
    nodes = mml_3.childNodes
    assert nodes[0].childNodes[0].nodeValue == '2'
    assert nodes[1].childNodes[0].nodeValue == '&InvisibleTimes;'
    assert nodes[2].childNodes[0].nodeValue == 'x'

    mml = mpp._print(Float(1.0, 2)*x)
    assert mml.nodeName == 'mrow'
    nodes = mml.childNodes
    assert nodes[0].childNodes[0].nodeValue == '1.0'
    assert nodes[1].childNodes[0].nodeValue == '&InvisibleTimes;'
    assert nodes[2].childNodes[0].nodeValue == 'x'


def test_presentation_mathml_functions():
    mml_1 = mpp._print(sin(x))
    assert mml_1.childNodes[0].childNodes[0
        ].nodeValue == 'sin'
    assert mml_1.childNodes[1].childNodes[0
        ].childNodes[0].nodeValue == 'x'

    mml_2 = mpp._print(diff(sin(x), x, evaluate=False))
    assert mml_2.nodeName == 'mrow'
    assert mml_2.childNodes[0].childNodes[0
        ].childNodes[0].childNodes[0].nodeValue == '&dd;'
    assert mml_2.childNodes[1].childNodes[1
        ].nodeName == 'mfenced'
    assert mml_2.childNodes[0].childNodes[1
        ].childNodes[0].childNodes[0].nodeValue == '&dd;'

    mml_3 = mpp._print(diff(cos(x*y), x, evaluate=False))
    assert mml_3.childNodes[0].nodeName == 'mfrac'
    assert mml_3.childNodes[0].childNodes[0
        ].childNodes[0].childNodes[0].nodeValue == '&#x2202;'
    assert mml_3.childNodes[1].childNodes[0
        ].childNodes[0].nodeValue == 'cos'


def test_print_derivative():
    f = Function('f')
    d = Derivative(f(x, y, z), x, z, x, z, z, y)
    assert mathml(d) == \
        '<apply><partialdiff/><bvar><ci>y</ci><ci>z</ci><degree><cn>2</cn></degree><ci>x</ci><ci>z</ci><ci>x</ci></bvar><apply><f/><ci>x</ci><ci>y</ci><ci>z</ci></apply></apply>'
    assert mathml(d, printer='presentation') == \
        '<mrow><mfrac><mrow><msup><mo>&#x2202;</mo><mn>6</mn></msup></mrow><mrow><mo>&#x2202;</mo><mi>y</mi><msup><mo>&#x2202;</mo><mn>2</mn></msup><mi>z</mi><mo>&#x2202;</mo><mi>x</mi><mo>&#x2202;</mo><mi>z</mi><mo>&#x2202;</mo><mi>x</mi></mrow></mfrac><mrow><mi>f</mi><mfenced><mi>x</mi><mi>y</mi><mi>z</mi></mfenced></mrow></mrow>'


def test_presentation_mathml_limits():
    lim_fun = sin(x)/x
    mml_1 = mpp._print(Limit(lim_fun, x, 0))
    assert mml_1.childNodes[0].nodeName == 'munder'
    assert mml_1.childNodes[0].childNodes[0
        ].childNodes[0].nodeValue == 'lim'
    assert mml_1.childNodes[0].childNodes[1
        ].childNodes[0].childNodes[0
        ].nodeValue == 'x'
    assert mml_1.childNodes[0].childNodes[1
        ].childNodes[1].childNodes[0
        ].nodeValue == '&#x2192;'
    assert mml_1.childNodes[0].childNodes[1
        ].childNodes[2].childNodes[0
        ].nodeValue == '0'


def test_presentation_mathml_integrals():
    assert mpp.doprint(Integral(x, (x, 0, 1))) == \
        '<mrow><msubsup><mo>&#x222B;</mo><mn>0</mn><mn>1</mn></msubsup>'\
        '<mi>x</mi><mo>&dd;</mo><mi>x</mi></mrow>'
    assert mpp.doprint(Integral(log(x), x)) == \
        '<mrow><mo>&#x222B;</mo><mrow><mi>log</mi><mfenced><mi>x</mi>'\
        '</mfenced></mrow><mo>&dd;</mo><mi>x</mi></mrow>'
    assert mpp.doprint(Integral(x*y, x, y)) == \
        '<mrow><mo>&#x222C;</mo><mrow><mi>x</mi><mo>&InvisibleTimes;</mo>'\
        '<mi>y</mi></mrow><mo>&dd;</mo><mi>y</mi><mo>&dd;</mo><mi>x</mi></mrow>'
    z, w = symbols('z w')
    assert mpp.doprint(Integral(x*y*z, x, y, z)) == \
        '<mrow><mo>&#x222D;</mo><mrow><mi>x</mi><mo>&InvisibleTimes;</mo>'\
        '<mi>y</mi><mo>&InvisibleTimes;</mo><mi>z</mi></mrow><mo>&dd;</mo>'\
        '<mi>z</mi><mo>&dd;</mo><mi>y</mi><mo>&dd;</mo><mi>x</mi></mrow>'
    assert mpp.doprint(Integral(x*y*z*w, x, y, z, w)) == \
        '<mrow><mo>&#x222B;</mo><mo>&#x222B;</mo><mo>&#x222B;</mo>'\
        '<mo>&#x222B;</mo><mrow><mi>w</mi><mo>&InvisibleTimes;</mo>'\
        '<mi>x</mi><mo>&InvisibleTimes;</mo><mi>y</mi>'\
        '<mo>&InvisibleTimes;</mo><mi>z</mi></mrow><mo>&dd;</mo><mi>w</mi>'\
        '<mo>&dd;</mo><mi>z</mi><mo>&dd;</mo><mi>y</mi><mo>&dd;</mo><mi>x</mi></mrow>'
    assert mpp.doprint(Integral(x, x, y, (z, 0, 1))) == \
        '<mrow><msubsup><mo>&#x222B;</mo><mn>0</mn><mn>1</mn></msubsup>'\
        '<mo>&#x222B;</mo><mo>&#x222B;</mo><mi>x</mi><mo>&dd;</mo><mi>z</mi>'\
        '<mo>&dd;</mo><mi>y</mi><mo>&dd;</mo><mi>x</mi></mrow>'
    assert mpp.doprint(Integral(x, (x, 0))) == \
        '<mrow><msup><mo>&#x222B;</mo><mn>0</mn></msup><mi>x</mi><mo>&dd;</mo>'\
        '<mi>x</mi></mrow>'


def test_presentation_mathml_matrices():
    A = Matrix([1, 2, 3])
    B = Matrix([[0, 5, 4], [2, 3, 1], [9, 7, 9]])
    mll_1 = mpp._print(A)
    assert mll_1.childNodes[0].nodeName == 'mtable'
    assert mll_1.childNodes[0].childNodes[0].nodeName == 'mtr'
    assert len(mll_1.childNodes[0].childNodes) == 3
    assert mll_1.childNodes[0].childNodes[0].childNodes[0].nodeName == 'mtd'
    assert len(mll_1.childNodes[0].childNodes[0].childNodes) == 1
    assert mll_1.childNodes[0].childNodes[0].childNodes[0
        ].childNodes[0].childNodes[0].nodeValue == '1'
    assert mll_1.childNodes[0].childNodes[1].childNodes[0
        ].childNodes[0].childNodes[0].nodeValue == '2'
    assert mll_1.childNodes[0].childNodes[2].childNodes[0
        ].childNodes[0].childNodes[0].nodeValue == '3'
    mll_2 = mpp._print(B)
    assert mll_2.childNodes[0].nodeName == 'mtable'
    assert mll_2.childNodes[0].childNodes[0].nodeName == 'mtr'
    assert len(mll_2.childNodes[0].childNodes) == 3
    assert mll_2.childNodes[0].childNodes[0].childNodes[0].nodeName == 'mtd'
    assert len(mll_2.childNodes[0].childNodes[0].childNodes) == 3
    assert mll_2.childNodes[0].childNodes[0].childNodes[0
        ].childNodes[0].childNodes[0].nodeValue == '0'
    assert mll_2.childNodes[0].childNodes[0].childNodes[1
        ].childNodes[0].childNodes[0].nodeValue == '5'
    assert mll_2.childNodes[0].childNodes[0].childNodes[2
        ].childNodes[0].childNodes[0].nodeValue == '4'
    assert mll_2.childNodes[0].childNodes[1].childNodes[0
        ].childNodes[0].childNodes[0].nodeValue == '2'
    assert mll_2.childNodes[0].childNodes[1].childNodes[1
        ].childNodes[0].childNodes[0].nodeValue == '3'
    assert mll_2.childNodes[0].childNodes[1].childNodes[2
        ].childNodes[0].childNodes[0].nodeValue == '1'
    assert mll_2.childNodes[0].childNodes[2].childNodes[0
        ].childNodes[0].childNodes[0].nodeValue == '9'
    assert mll_2.childNodes[0].childNodes[2].childNodes[1
        ].childNodes[0].childNodes[0].nodeValue == '7'
    assert mll_2.childNodes[0].childNodes[2].childNodes[2
        ].childNodes[0].childNodes[0].nodeValue == '9'


def test_presentation_mathml_sums():
    summand = x
    mml_1 = mpp._print(Sum(summand, (x, 1, 10)))
    assert mml_1.childNodes[0].nodeName == 'munderover'
    assert len(mml_1.childNodes[0].childNodes) == 3
    assert mml_1.childNodes[0].childNodes[0].childNodes[0
        ].nodeValue == '&#x2211;'
    assert len(mml_1.childNodes[0].childNodes[1].childNodes) == 3
    assert mml_1.childNodes[0].childNodes[2].childNodes[0
        ].nodeValue == '10'
    assert mml_1.childNodes[1].childNodes[0].nodeValue == 'x'


def test_presentation_mathml_add():
    mml = mpp._print(x**5 - x**4 + x)
    assert len(mml.childNodes) == 5
    assert mml.childNodes[0].childNodes[0].childNodes[0
        ].nodeValue == 'x'
    assert mml.childNodes[0].childNodes[1].childNodes[0
        ].nodeValue == '5'
    assert mml.childNodes[1].childNodes[0].nodeValue == '-'
    assert mml.childNodes[2].childNodes[0].childNodes[0
        ].nodeValue == 'x'
    assert mml.childNodes[2].childNodes[1].childNodes[0
        ].nodeValue == '4'
    assert mml.childNodes[3].childNodes[0].nodeValue == '+'
    assert mml.childNodes[4].childNodes[0].nodeValue == 'x'


def test_presentation_mathml_Rational():
    mml_1 = mpp._print(Rational(1, 1))
    assert mml_1.nodeName == 'mn'

    mml_2 = mpp._print(Rational(2, 5))
    assert mml_2.nodeName == 'mfrac'
    assert mml_2.childNodes[0].childNodes[0].nodeValue == '2'
    assert mml_2.childNodes[1].childNodes[0].nodeValue == '5'


def test_presentation_mathml_constants():
    mml = mpp._print(I)
    assert mml.childNodes[0].nodeValue == '&ImaginaryI;'

    mml = mpp._print(E)
    assert mml.childNodes[0].nodeValue == '&ExponentialE;'

    mml = mpp._print(oo)
    assert mml.childNodes[0].nodeValue == '&#x221E;'

    mml = mpp._print(pi)
    assert mml.childNodes[0].nodeValue == '&pi;'

    assert mathml(GoldenRatio, printer='presentation') == '<mi>&#x3A6;</mi>'

    assert mathml(zoo, printer='presentation') == \
        '<mover><mo>&#x221E;</mo><mo>~</mo></mover>'

    assert mathml(S.NaN, printer='presentation') == '<mi>NaN</mi>'

def test_presentation_mathml_trig():
    mml = mpp._print(sin(x))
    assert mml.childNodes[0].childNodes[0].nodeValue == 'sin'

    mml = mpp._print(cos(x))
    assert mml.childNodes[0].childNodes[0].nodeValue == 'cos'

    mml = mpp._print(tan(x))
    assert mml.childNodes[0].childNodes[0].nodeValue == 'tan'

    mml = mpp._print(asin(x))
    assert mml.childNodes[0].childNodes[0].nodeValue == 'arcsin'

    mml = mpp._print(acos(x))
    assert mml.childNodes[0].childNodes[0].nodeValue == 'arccos'

    mml = mpp._print(atan(x))
    assert mml.childNodes[0].childNodes[0].nodeValue == 'arctan'

    mml = mpp._print(sinh(x))
    assert mml.childNodes[0].childNodes[0].nodeValue == 'sinh'

    mml = mpp._print(cosh(x))
    assert mml.childNodes[0].childNodes[0].nodeValue == 'cosh'

    mml = mpp._print(tanh(x))
    assert mml.childNodes[0].childNodes[0].nodeValue == 'tanh'

    mml = mpp._print(asinh(x))
    assert mml.childNodes[0].childNodes[0].nodeValue == 'arcsinh'

    mml = mpp._print(atanh(x))
    assert mml.childNodes[0].childNodes[0].nodeValue == 'arctanh'

    mml = mpp._print(acosh(x))
    assert mml.childNodes[0].childNodes[0].nodeValue == 'arccosh'


def test_presentation_mathml_relational():
    mml_1 = mpp._print(Eq(x, 1))
    assert len(mml_1.childNodes) == 3
    assert mml_1.childNodes[0].nodeName == 'mi'
    assert mml_1.childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml_1.childNodes[1].nodeName == 'mo'
    assert mml_1.childNodes[1].childNodes[0].nodeValue == '='
    assert mml_1.childNodes[2].nodeName == 'mn'
    assert mml_1.childNodes[2].childNodes[0].nodeValue == '1'

    mml_2 = mpp._print(Ne(1, x))
    assert len(mml_2.childNodes) == 3
    assert mml_2.childNodes[0].nodeName == 'mn'
    assert mml_2.childNodes[0].childNodes[0].nodeValue == '1'
    assert mml_2.childNodes[1].nodeName == 'mo'
    assert mml_2.childNodes[1].childNodes[0].nodeValue == '&#x2260;'
    assert mml_2.childNodes[2].nodeName == 'mi'
    assert mml_2.childNodes[2].childNodes[0].nodeValue == 'x'

    mml_3 = mpp._print(Ge(1, x))
    assert len(mml_3.childNodes) == 3
    assert mml_3.childNodes[0].nodeName == 'mn'
    assert mml_3.childNodes[0].childNodes[0].nodeValue == '1'
    assert mml_3.childNodes[1].nodeName == 'mo'
    assert mml_3.childNodes[1].childNodes[0].nodeValue == '&#x2265;'
    assert mml_3.childNodes[2].nodeName == 'mi'
    assert mml_3.childNodes[2].childNodes[0].nodeValue == 'x'

    mml_4 = mpp._print(Lt(1, x))
    assert len(mml_4.childNodes) == 3
    assert mml_4.childNodes[0].nodeName == 'mn'
    assert mml_4.childNodes[0].childNodes[0].nodeValue == '1'
    assert mml_4.childNodes[1].nodeName == 'mo'
    assert mml_4.childNodes[1].childNodes[0].nodeValue == '<'
    assert mml_4.childNodes[2].nodeName == 'mi'
    assert mml_4.childNodes[2].childNodes[0].nodeValue == 'x'


def test_presentation_symbol():
    mml = mpp._print(x)
    assert mml.nodeName == 'mi'
    assert mml.childNodes[0].nodeValue == 'x'
    del mml

    mml = mpp._print(Symbol("x^2"))
    assert mml.nodeName == 'msup'
    assert mml.childNodes[0].nodeName == 'mi'
    assert mml.childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[1].nodeName == 'mi'
    assert mml.childNodes[1].childNodes[0].nodeValue == '2'
    del mml

    mml = mpp._print(Symbol("x__2"))
    assert mml.nodeName == 'msup'
    assert mml.childNodes[0].nodeName == 'mi'
    assert mml.childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[1].nodeName == 'mi'
    assert mml.childNodes[1].childNodes[0].nodeValue == '2'
    del mml

    mml = mpp._print(Symbol("x_2"))
    assert mml.nodeName == 'msub'
    assert mml.childNodes[0].nodeName == 'mi'
    assert mml.childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[1].nodeName == 'mi'
    assert mml.childNodes[1].childNodes[0].nodeValue == '2'
    del mml

    mml = mpp._print(Symbol("x^3_2"))
    assert mml.nodeName == 'msubsup'
    assert mml.childNodes[0].nodeName == 'mi'
    assert mml.childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[1].nodeName == 'mi'
    assert mml.childNodes[1].childNodes[0].nodeValue == '2'
    assert mml.childNodes[2].nodeName == 'mi'
    assert mml.childNodes[2].childNodes[0].nodeValue == '3'
    del mml

    mml = mpp._print(Symbol("x__3_2"))
    assert mml.nodeName == 'msubsup'
    assert mml.childNodes[0].nodeName == 'mi'
    assert mml.childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[1].nodeName == 'mi'
    assert mml.childNodes[1].childNodes[0].nodeValue == '2'
    assert mml.childNodes[2].nodeName == 'mi'
    assert mml.childNodes[2].childNodes[0].nodeValue == '3'
    del mml

    mml = mpp._print(Symbol("x_2_a"))
    assert mml.nodeName == 'msub'
    assert mml.childNodes[0].nodeName == 'mi'
    assert mml.childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[1].nodeName == 'mrow'
    assert mml.childNodes[1].childNodes[0].nodeName == 'mi'
    assert mml.childNodes[1].childNodes[0].childNodes[0].nodeValue == '2'
    assert mml.childNodes[1].childNodes[1].nodeName == 'mo'
    assert mml.childNodes[1].childNodes[1].childNodes[0].nodeValue == ' '
    assert mml.childNodes[1].childNodes[2].nodeName == 'mi'
    assert mml.childNodes[1].childNodes[2].childNodes[0].nodeValue == 'a'
    del mml

    mml = mpp._print(Symbol("x^2^a"))
    assert mml.nodeName == 'msup'
    assert mml.childNodes[0].nodeName == 'mi'
    assert mml.childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[1].nodeName == 'mrow'
    assert mml.childNodes[1].childNodes[0].nodeName == 'mi'
    assert mml.childNodes[1].childNodes[0].childNodes[0].nodeValue == '2'
    assert mml.childNodes[1].childNodes[1].nodeName == 'mo'
    assert mml.childNodes[1].childNodes[1].childNodes[0].nodeValue == ' '
    assert mml.childNodes[1].childNodes[2].nodeName == 'mi'
    assert mml.childNodes[1].childNodes[2].childNodes[0].nodeValue == 'a'
    del mml

    mml = mpp._print(Symbol("x__2__a"))
    assert mml.nodeName == 'msup'
    assert mml.childNodes[0].nodeName == 'mi'
    assert mml.childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[1].nodeName == 'mrow'
    assert mml.childNodes[1].childNodes[0].nodeName == 'mi'
    assert mml.childNodes[1].childNodes[0].childNodes[0].nodeValue == '2'
    assert mml.childNodes[1].childNodes[1].nodeName == 'mo'
    assert mml.childNodes[1].childNodes[1].childNodes[0].nodeValue == ' '
    assert mml.childNodes[1].childNodes[2].nodeName == 'mi'
    assert mml.childNodes[1].childNodes[2].childNodes[0].nodeValue == 'a'
    del mml


def test_presentation_mathml_greek():
    mml = mpp._print(Symbol('alpha'))
    assert mml.nodeName == 'mi'
    assert mml.childNodes[0].nodeValue == u'\N{GREEK SMALL LETTER ALPHA}'

    assert mpp.doprint(Symbol('alpha')) == '<mi>&#945;</mi>'
    assert mpp.doprint(Symbol('beta')) == '<mi>&#946;</mi>'
    assert mpp.doprint(Symbol('gamma')) == '<mi>&#947;</mi>'
    assert mpp.doprint(Symbol('delta')) == '<mi>&#948;</mi>'
    assert mpp.doprint(Symbol('epsilon')) == '<mi>&#949;</mi>'
    assert mpp.doprint(Symbol('zeta')) == '<mi>&#950;</mi>'
    assert mpp.doprint(Symbol('eta')) == '<mi>&#951;</mi>'
    assert mpp.doprint(Symbol('theta')) == '<mi>&#952;</mi>'
    assert mpp.doprint(Symbol('iota')) == '<mi>&#953;</mi>'
    assert mpp.doprint(Symbol('kappa')) == '<mi>&#954;</mi>'
    assert mpp.doprint(Symbol('lambda')) == '<mi>&#955;</mi>'
    assert mpp.doprint(Symbol('mu')) == '<mi>&#956;</mi>'
    assert mpp.doprint(Symbol('nu')) == '<mi>&#957;</mi>'
    assert mpp.doprint(Symbol('xi')) == '<mi>&#958;</mi>'
    assert mpp.doprint(Symbol('omicron')) == '<mi>&#959;</mi>'
    assert mpp.doprint(Symbol('pi')) == '<mi>&#960;</mi>'
    assert mpp.doprint(Symbol('rho')) == '<mi>&#961;</mi>'
    assert mpp.doprint(Symbol('varsigma')) == '<mi>&#962;</mi>'
    assert mpp.doprint(Symbol('sigma')) == '<mi>&#963;</mi>'
    assert mpp.doprint(Symbol('tau')) == '<mi>&#964;</mi>'
    assert mpp.doprint(Symbol('upsilon')) == '<mi>&#965;</mi>'
    assert mpp.doprint(Symbol('phi')) == '<mi>&#966;</mi>'
    assert mpp.doprint(Symbol('chi')) == '<mi>&#967;</mi>'
    assert mpp.doprint(Symbol('psi')) == '<mi>&#968;</mi>'
    assert mpp.doprint(Symbol('omega')) == '<mi>&#969;</mi>'

    assert mpp.doprint(Symbol('Alpha')) == '<mi>&#913;</mi>'
    assert mpp.doprint(Symbol('Beta')) == '<mi>&#914;</mi>'
    assert mpp.doprint(Symbol('Gamma')) == '<mi>&#915;</mi>'
    assert mpp.doprint(Symbol('Delta')) == '<mi>&#916;</mi>'
    assert mpp.doprint(Symbol('Epsilon')) == '<mi>&#917;</mi>'
    assert mpp.doprint(Symbol('Zeta')) == '<mi>&#918;</mi>'
    assert mpp.doprint(Symbol('Eta')) == '<mi>&#919;</mi>'
    assert mpp.doprint(Symbol('Theta')) == '<mi>&#920;</mi>'
    assert mpp.doprint(Symbol('Iota')) == '<mi>&#921;</mi>'
    assert mpp.doprint(Symbol('Kappa')) == '<mi>&#922;</mi>'
    assert mpp.doprint(Symbol('Lambda')) == '<mi>&#923;</mi>'
    assert mpp.doprint(Symbol('Mu')) == '<mi>&#924;</mi>'
    assert mpp.doprint(Symbol('Nu')) == '<mi>&#925;</mi>'
    assert mpp.doprint(Symbol('Xi')) == '<mi>&#926;</mi>'
    assert mpp.doprint(Symbol('Omicron')) == '<mi>&#927;</mi>'
    assert mpp.doprint(Symbol('Pi')) == '<mi>&#928;</mi>'
    assert mpp.doprint(Symbol('Rho')) == '<mi>&#929;</mi>'
    assert mpp.doprint(Symbol('Sigma')) == '<mi>&#931;</mi>'
    assert mpp.doprint(Symbol('Tau')) == '<mi>&#932;</mi>'
    assert mpp.doprint(Symbol('Upsilon')) == '<mi>&#933;</mi>'
    assert mpp.doprint(Symbol('Phi')) == '<mi>&#934;</mi>'
    assert mpp.doprint(Symbol('Chi')) == '<mi>&#935;</mi>'
    assert mpp.doprint(Symbol('Psi')) == '<mi>&#936;</mi>'
    assert mpp.doprint(Symbol('Omega')) == '<mi>&#937;</mi>'


def test_presentation_mathml_order():
    expr = x**3 + x**2*y + 3*x*y**3 + y**4

    mp = MathMLPresentationPrinter({'order': 'lex'})
    mml = mp._print(expr)
    assert mml.childNodes[0].nodeName == 'msup'
    assert mml.childNodes[0].childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[0].childNodes[1].childNodes[0].nodeValue == '3'

    assert mml.childNodes[6].nodeName == 'msup'
    assert mml.childNodes[6].childNodes[0].childNodes[0].nodeValue == 'y'
    assert mml.childNodes[6].childNodes[1].childNodes[0].nodeValue == '4'

    mp = MathMLPresentationPrinter({'order': 'rev-lex'})
    mml = mp._print(expr)

    assert mml.childNodes[0].nodeName == 'msup'
    assert mml.childNodes[0].childNodes[0].childNodes[0].nodeValue == 'y'
    assert mml.childNodes[0].childNodes[1].childNodes[0].nodeValue == '4'

    assert mml.childNodes[6].nodeName == 'msup'
    assert mml.childNodes[6].childNodes[0].childNodes[0].nodeValue == 'x'
    assert mml.childNodes[6].childNodes[1].childNodes[0].nodeValue == '3'


def test_print_intervals():
    a = Symbol('a', real=True)
    assert mpp.doprint(Interval(0, a)) == \
        '<mrow><mfenced close="]" open="["><mn>0</mn><mi>a</mi></mfenced></mrow>'
    assert mpp.doprint(Interval(0, a, False, False)) == \
        '<mrow><mfenced close="]" open="["><mn>0</mn><mi>a</mi></mfenced></mrow>'
    assert mpp.doprint(Interval(0, a, True, False)) == \
        '<mrow><mfenced close="]" open="("><mn>0</mn><mi>a</mi></mfenced></mrow>'
    assert mpp.doprint(Interval(0, a, False, True)) == \
        '<mrow><mfenced close=")" open="["><mn>0</mn><mi>a</mi></mfenced></mrow>'
    assert mpp.doprint(Interval(0, a, True, True)) == \
        '<mrow><mfenced close=")" open="("><mn>0</mn><mi>a</mi></mfenced></mrow>'


def test_print_tuples():
    assert mpp.doprint(Tuple(0,)) == \
        '<mrow><mfenced><mn>0</mn></mfenced></mrow>'
    assert mpp.doprint(Tuple(0, a)) == \
        '<mrow><mfenced><mn>0</mn><mi>a</mi></mfenced></mrow>'
    assert mpp.doprint(Tuple(0, a, a)) == \
        '<mrow><mfenced><mn>0</mn><mi>a</mi><mi>a</mi></mfenced></mrow>'
    assert mpp.doprint(Tuple(0, 1, 2, 3, 4)) == \
        '<mrow><mfenced><mn>0</mn><mn>1</mn><mn>2</mn><mn>3</mn><mn>4</mn></mfenced></mrow>'
    assert mpp.doprint(Tuple(0, 1, Tuple(2, 3, 4))) == \
        '<mrow><mfenced><mn>0</mn><mn>1</mn><mrow><mfenced><mn>2</mn><mn>3'\
        '</mn><mn>4</mn></mfenced></mrow></mfenced></mrow>'


def test_print_re_im():
    assert mpp.doprint(re(x)) == \
        '<mrow><mi mathvariant="fraktur">R</mi><mfenced><mi>x</mi></mfenced></mrow>'
    assert mpp.doprint(im(x)) == \
        '<mrow><mi mathvariant="fraktur">I</mi><mfenced><mi>x</mi></mfenced></mrow>'
    assert mpp.doprint(re(x + 1)) == \
        '<mrow><mrow><mi mathvariant="fraktur">R</mi><mfenced><mi>x</mi>'\
        '</mfenced></mrow><mo>+</mo><mn>1</mn></mrow>'
    assert mpp.doprint(im(x + 1)) == \
        '<mrow><mi mathvariant="fraktur">I</mi><mfenced><mi>x</mi></mfenced></mrow>'


def test_print_Abs():
    assert mpp.doprint(Abs(x)) == \
        '<mrow><mfenced close="|" open="|"><mi>x</mi></mfenced></mrow>'
    assert mpp.doprint(Abs(x + 1)) == \
        '<mrow><mfenced close="|" open="|"><mrow><mi>x</mi><mo>+</mo><mn>1</mn></mrow></mfenced></mrow>'


def test_print_Determinant():
    assert mpp.doprint(Determinant(Matrix([[1, 2], [3, 4]]))) == \
        '<mrow><mfenced close="|" open="|"><mfenced close="]" open="["><mtable><mtr><mtd><mn>1</mn></mtd><mtd><mn>2</mn></mtd></mtr><mtr><mtd><mn>3</mn></mtd><mtd><mn>4</mn></mtd></mtr></mtable></mfenced></mfenced></mrow>'


def test_presentation_settings():
    raises(TypeError, lambda: mathml(x, printer='presentation',
                                     method="garbage"))


def test_toprettyxml_hooking():
    # test that the patch doesn't influence the behavior of the standard
    # library
    import xml.dom.minidom
    doc1 = xml.dom.minidom.parseString(
        "<apply><plus/><ci>x</ci><cn>1</cn></apply>")
    doc2 = xml.dom.minidom.parseString(
        "<mrow><mi>x</mi><mo>+</mo><mn>1</mn></mrow>")
    prettyxml_old1 = doc1.toprettyxml()
    prettyxml_old2 = doc2.toprettyxml()

    mp.apply_patch()
    mp.restore_patch()

    assert prettyxml_old1 == doc1.toprettyxml()
    assert prettyxml_old2 == doc2.toprettyxml()


def test_print_domains():
    from sympy import Complexes, Integers, Naturals, Naturals0, Reals

    assert mpp.doprint(Complexes) == '<mi mathvariant="normal">&#x2102;</mi>'
    assert mpp.doprint(Integers) == '<mi mathvariant="normal">&#x2124;</mi>'
    assert mpp.doprint(Naturals) == '<mi mathvariant="normal">&#x2115;</mi>'
    assert mpp.doprint(Naturals0) == \
        '<msub><mi mathvariant="normal">&#x2115;</mi><mn>0</mn></msub>'
    assert mpp.doprint(Reals) == '<mi mathvariant="normal">&#x211D;</mi>'


def test_print_expression_with_minus():
    assert mpp.doprint(-x) == '<mrow><mo>-</mo><mi>x</mi></mrow>'
    assert mpp.doprint(-x/y) == \
        '<mrow><mo>-</mo><mfrac><mi>x</mi><mi>y</mi></mfrac></mrow>'
    assert mpp.doprint(-Rational(1, 2)) == \
        '<mrow><mo>-</mo><mfrac><mn>1</mn><mn>2</mn></mfrac></mrow>'


def test_print_AssocOp():
    from sympy.core.operations import AssocOp

    class TestAssocOp(AssocOp):
        identity = 0

    expr = TestAssocOp(1, 2)
    mpp.doprint(expr) == \
        '<mrow><mi>testassocop</mi><mn>2</mn><mn>1</mn></mrow>'


def test_print_basic():
    expr = Basic(1, 2)
    assert mpp.doprint(expr) == \
        '<mrow><mi>basic</mi><mfenced><mn>1</mn><mn>2</mn></mfenced></mrow>'
    assert mp.doprint(expr) == '<basic><cn>1</cn><cn>2</cn></basic>'


def test_mat_delim_print():
    expr = Matrix([[1, 2], [3, 4]])
    assert mathml(expr, printer='presentation', mat_delim='[') == \
        '<mfenced close="]" open="["><mtable><mtr><mtd><mn>1</mn></mtd><mtd>'\
        '<mn>2</mn></mtd></mtr><mtr><mtd><mn>3</mn></mtd><mtd><mn>4</mn>'\
        '</mtd></mtr></mtable></mfenced>'
    assert mathml(expr, printer='presentation', mat_delim='(') == \
        '<mfenced><mtable><mtr><mtd><mn>1</mn></mtd><mtd><mn>2</mn></mtd>'\
        '</mtr><mtr><mtd><mn>3</mn></mtd><mtd><mn>4</mn></mtd></mtr></mtable></mfenced>'
    assert mathml(expr, printer='presentation', mat_delim='') == \
        '<mtable><mtr><mtd><mn>1</mn></mtd><mtd><mn>2</mn></mtd></mtr><mtr>'\
        '<mtd><mn>3</mn></mtd><mtd><mn>4</mn></mtd></mtr></mtable>'


def test_ln_notation_print():
    expr = log(x)
    assert mathml(expr, printer='presentation') == \
        '<mrow><mi>log</mi><mfenced><mi>x</mi></mfenced></mrow>'
    assert mathml(expr, printer='presentation', ln_notation=False) == \
        '<mrow><mi>log</mi><mfenced><mi>x</mi></mfenced></mrow>'
    assert mathml(expr, printer='presentation', ln_notation=True) == \
        '<mrow><mi>ln</mi><mfenced><mi>x</mi></mfenced></mrow>'


def test_mul_symbol_print():
    expr = x * y
    assert mathml(expr, printer='presentation') == \
        '<mrow><mi>x</mi><mo>&InvisibleTimes;</mo><mi>y</mi></mrow>'
    assert mathml(expr, printer='presentation', mul_symbol=None) == \
        '<mrow><mi>x</mi><mo>&InvisibleTimes;</mo><mi>y</mi></mrow>'
    assert mathml(expr, printer='presentation', mul_symbol='dot') == \
        '<mrow><mi>x</mi><mo>&#xB7;</mo><mi>y</mi></mrow>'
    assert mathml(expr, printer='presentation', mul_symbol='ldot') == \
        '<mrow><mi>x</mi><mo>&#x2024;</mo><mi>y</mi></mrow>'
    assert mathml(expr, printer='presentation', mul_symbol='times') == \
        '<mrow><mi>x</mi><mo>&#xD7;</mo><mi>y</mi></mrow>'


def test_print_lerchphi():
    assert mpp.doprint(lerchphi(1, 2, 3)) == \
        '<mrow><mi>&#x3A6;</mi><mfenced><mn>1</mn><mn>2</mn><mn>3</mn></mfenced></mrow>'


def test_print_polylog():
    assert mp.doprint(polylog(x, y)) == \
        '<apply><polylog/><ci>x</ci><ci>y</ci></apply>'
    assert mpp.doprint(polylog(x, y)) == \
        '<mrow><msub><mi>Li</mi><mi>x</mi></msub><mfenced><mi>y</mi></mfenced></mrow>'


def test_print_set_frozenset():
    f = frozenset({1, 5, 3})
    assert mpp.doprint(f) == \
        '<mfenced close="}" open="{"><mn>1</mn><mn>3</mn><mn>5</mn></mfenced>'
    s = set({1, 2, 3})
    assert mpp.doprint(s) == \
        '<mfenced close="}" open="{"><mn>1</mn><mn>2</mn><mn>3</mn></mfenced>'


def test_print_FiniteSet():
    f1 = FiniteSet(x, 1, 3)
    assert mpp.doprint(f1) == \
        '<mfenced close="}" open="{"><mn>1</mn><mn>3</mn><mi>x</mi></mfenced>'


def test_print_EmptySet():
    assert mpp.doprint(EmptySet()) == '<mo>&#x2205;</mo>'


def test_print_SetOp():
    f1 = FiniteSet(x, 1, 3)
    f2 = FiniteSet(y, 2, 4)

    assert mpp.doprint(Union(f1, f2, evaluate=False)) == \
    '<mrow><mfenced close="}" open="{"><mn>1</mn><mn>3</mn><mi>x</mi>'\
    '</mfenced><mo>&#x222A;</mo><mfenced close="}" open="{"><mn>2</mn>'\
    '<mn>4</mn><mi>y</mi></mfenced></mrow>'
    assert mpp.doprint(Intersection(f1, f2, evaluate=False)) == \
    '<mrow><mfenced close="}" open="{"><mn>1</mn><mn>3</mn><mi>x</mi>'\
    '</mfenced><mo>&#x2229;</mo><mfenced close="}" open="{"><mn>2</mn>'\
    '<mn>4</mn><mi>y</mi></mfenced></mrow>'
    assert mpp.doprint(Complement(f1, f2, evaluate=False)) == \
    '<mrow><mfenced close="}" open="{"><mn>1</mn><mn>3</mn><mi>x</mi>'\
    '</mfenced><mo>&#x2216;</mo><mfenced close="}" open="{"><mn>2</mn>'\
    '<mn>4</mn><mi>y</mi></mfenced></mrow>'
    assert mpp.doprint(SymmetricDifference(f1, f2, evaluate=False)) == \
    '<mrow><mfenced close="}" open="{"><mn>1</mn><mn>3</mn><mi>x</mi>'\
    '</mfenced><mo>&#x2206;</mo><mfenced close="}" open="{"><mn>2</mn>'\
    '<mn>4</mn><mi>y</mi></mfenced></mrow>'


def test_print_logic():
    assert mpp.doprint(And(x, y)) == \
        '<mrow><mi>x</mi><mo>&#x2227;</mo><mi>y</mi></mrow>'
    assert mpp.doprint(Or(x, y)) == \
        '<mrow><mi>x</mi><mo>&#x2228;</mo><mi>y</mi></mrow>'
    assert mpp.doprint(Xor(x, y)) == \
        '<mrow><mi>x</mi><mo>&#x22BB;</mo><mi>y</mi></mrow>'
    assert mpp.doprint(Implies(x, y)) == \
        '<mrow><mi>x</mi><mo>&#x21D2;</mo><mi>y</mi></mrow>'
    assert mpp.doprint(Equivalent(x, y)) == \
        '<mrow><mi>x</mi><mo>&#x21D4;</mo><mi>y</mi></mrow>'

    assert mpp.doprint(And(Eq(x, y), x > 4)) == \
        '<mrow><mrow><mi>x</mi><mo>=</mo><mi>y</mi></mrow><mo>&#x2227;</mo>'\
        '<mrow><mi>x</mi><mo>></mo><mn>4</mn></mrow></mrow>'
    assert mpp.doprint(And(Eq(x, 3), y < 3, x > y + 1)) == \
        '<mrow><mrow><mi>x</mi><mo>=</mo><mn>3</mn></mrow><mo>&#x2227;</mo>'\
        '<mrow><mi>x</mi><mo>></mo><mrow><mi>y</mi><mo>+</mo><mn>1</mn></mrow>'\
        '</mrow><mo>&#x2227;</mo><mrow><mi>y</mi><mo><</mo><mn>3</mn></mrow></mrow>'
    assert mpp.doprint(Or(Eq(x, y), x > 4)) == \
        '<mrow><mrow><mi>x</mi><mo>=</mo><mi>y</mi></mrow><mo>&#x2228;</mo>'\
        '<mrow><mi>x</mi><mo>></mo><mn>4</mn></mrow></mrow>'
    assert mpp.doprint(And(Eq(x, 3), Or(y < 3, x > y + 1))) == \
        '<mrow><mrow><mi>x</mi><mo>=</mo><mn>3</mn></mrow><mo>&#x2227;</mo>'\
        '<mfenced><mrow><mrow><mi>x</mi><mo>></mo><mrow><mi>y</mi><mo>+</mo>'\
        '<mn>1</mn></mrow></mrow><mo>&#x2228;</mo><mrow><mi>y</mi><mo><</mo>'\
        '<mn>3</mn></mrow></mrow></mfenced></mrow>'

    assert mpp.doprint(Not(x)) == '<mrow><mo>&#xAC;</mo><mi>x</mi></mrow>'
    assert mpp.doprint(Not(And(x, y))) == \
        '<mrow><mo>&#xAC;</mo><mfenced><mrow><mi>x</mi><mo>&#x2227;</mo>'\
        '<mi>y</mi></mrow></mfenced></mrow>'


def test_root_notation_print():
    assert mathml(x**(S(1)/3), printer='presentation') == \
        '<mroot><mi>x</mi><mn>3</mn></mroot>'
    assert mathml(x**(S(1)/3), printer='presentation', root_notation=False) ==\
        '<msup><mi>x</mi><mfrac><mn>1</mn><mn>3</mn></mfrac></msup>'
    assert mathml(x**(S(1)/3), printer='content') == \
        '<apply><root/><degree><ci>3</ci></degree><ci>x</ci></apply>'
    assert mathml(x**(S(1)/3), printer='content', root_notation=False) == \
        '<apply><power/><ci>x</ci><apply><divide/><cn>1</cn><cn>3</cn></apply></apply>'
    assert mathml(x**(-S(1)/3), printer='presentation') == \
        '<mfrac><mn>1</mn><mroot><mi>x</mi><mn>3</mn></mroot></mfrac>'
    assert mathml(x**(-S(1)/3), printer='presentation', root_notation=False) \
        == '<mfrac><mn>1</mn><msup><mi>x</mi><mfrac><mn>1</mn><mn>3</mn></mfrac></msup></mfrac>'


def test_fold_frac_powers_print():
    expr = x ** Rational(5, 2)
    assert mathml(expr, printer='presentation') == \
        '<msup><mi>x</mi><mfrac><mn>5</mn><mn>2</mn></mfrac></msup>'
    assert mathml(expr, printer='presentation', fold_frac_powers=True) == \
        '<msup><mi>x</mi><mfrac bevelled="true"><mn>5</mn><mn>2</mn></mfrac></msup>'
    assert mathml(expr, printer='presentation', fold_frac_powers=False) == \
        '<msup><mi>x</mi><mfrac><mn>5</mn><mn>2</mn></mfrac></msup>'


def test_fold_short_frac_print():
    expr = Rational(2, 5)
    assert mathml(expr, printer='presentation') == \
        '<mfrac><mn>2</mn><mn>5</mn></mfrac>'
    assert mathml(expr, printer='presentation', fold_short_frac=True) == \
        '<mfrac bevelled="true"><mn>2</mn><mn>5</mn></mfrac>'
    assert mathml(expr, printer='presentation', fold_short_frac=False) == \
        '<mfrac><mn>2</mn><mn>5</mn></mfrac>'


def test_print_factorials():
    assert mpp.doprint(factorial(x)) == '<mrow><mi>x</mi><mo>!</mo></mrow>'
    assert mpp.doprint(factorial(x + 1)) == \
        '<mrow><mfenced><mrow><mi>x</mi><mo>+</mo><mn>1</mn></mrow></mfenced><mo>!</mo></mrow>'
    assert mpp.doprint(factorial2(x)) == '<mrow><mi>x</mi><mo>!!</mo></mrow>'
    assert mpp.doprint(factorial2(x + 1)) == \
        '<mrow><mfenced><mrow><mi>x</mi><mo>+</mo><mn>1</mn></mrow></mfenced><mo>!!</mo></mrow>'
    assert mpp.doprint(binomial(x, y)) == \
        '<mfenced><mfrac linethickness="0"><mi>x</mi><mi>y</mi></mfrac></mfenced>'
    assert mpp.doprint(binomial(4, x + y)) == \
        '<mfenced><mfrac linethickness="0"><mn>4</mn><mrow><mi>x</mi>'\
        '<mo>+</mo><mi>y</mi></mrow></mfrac></mfenced>'


def test_print_floor():
    expr = floor(x)
    assert mathml(expr, printer='presentation') == \
        '<mrow><mfenced close="&#8971;" open="&#8970;"><mi>x</mi></mfenced></mrow>'


def test_print_ceiling():
    expr = ceiling(x)
    assert mathml(expr, printer='presentation') == \
        '<mrow><mfenced close="&#8969;" open="&#8968;"><mi>x</mi></mfenced></mrow>'


def test_print_Lambda():
    expr = Lambda(x, x+1)
    assert mathml(expr, printer='presentation') == \
        '<mfenced><mrow><mi>x</mi><mo>&#x21A6;</mo><mrow><mi>x</mi><mo>+</mo>'\
        '<mn>1</mn></mrow></mrow></mfenced>'
    expr = Lambda((x, y), x + y)
    assert mathml(expr, printer='presentation') == \
        '<mfenced><mrow><mrow><mfenced><mi>x</mi><mi>y</mi></mfenced></mrow>'\
        '<mo>&#x21A6;</mo><mrow><mi>x</mi><mo>+</mo><mi>y</mi></mrow></mrow></mfenced>'


def test_print_conjugate():
    assert mpp.doprint(conjugate(x)) == \
        '<menclose notation="top"><mi>x</mi></menclose>'
    assert mpp.doprint(conjugate(x + 1)) == \
        '<mrow><menclose notation="top"><mi>x</mi></menclose><mo>+</mo><mn>1</mn></mrow>'


def test_print_AccumBounds():
    a = Symbol('a', real=True)
    assert mpp.doprint(AccumBounds(0, 1)) == '<mfenced close="&#10217;" open="&#10216;"><mn>0</mn><mn>1</mn></mfenced>'
    assert mpp.doprint(AccumBounds(0, a)) == '<mfenced close="&#10217;" open="&#10216;"><mn>0</mn><mi>a</mi></mfenced>'
    assert mpp.doprint(AccumBounds(a + 1, a + 2)) == '<mfenced close="&#10217;" open="&#10216;"><mrow><mi>a</mi><mo>+</mo><mn>1</mn></mrow><mrow><mi>a</mi><mo>+</mo><mn>2</mn></mrow></mfenced>'


def test_print_Float():
    assert mpp.doprint(Float(1e100)) == '<mrow><mn>1.0</mn><mo>&#xB7;</mo><msup><mn>10</mn><mn>100</mn></msup></mrow>'
    assert mpp.doprint(Float(1e-100)) == '<mrow><mn>1.0</mn><mo>&#xB7;</mo><msup><mn>10</mn><mn>-100</mn></msup></mrow>'
    assert mpp.doprint(Float(-1e100)) == '<mrow><mn>-1.0</mn><mo>&#xB7;</mo><msup><mn>10</mn><mn>100</mn></msup></mrow>'
    assert mpp.doprint(Float(1.0*oo)) == '<mi>&#x221E;</mi>'
    assert mpp.doprint(Float(-1.0*oo)) == '<mrow><mo>-</mo><mi>&#x221E;</mi></mrow>'


def test_print_different_functions():
    assert mpp.doprint(gamma(x)) == '<mrow><mi>&#x393;</mi><mfenced><mi>x</mi></mfenced></mrow>'
    assert mpp.doprint(lowergamma(x, y)) == '<mrow><mi>&#x3B3;</mi><mfenced><mi>x</mi><mi>y</mi></mfenced></mrow>'
    assert mpp.doprint(uppergamma(x, y)) == '<mrow><mi>&#x393;</mi><mfenced><mi>x</mi><mi>y</mi></mfenced></mrow>'
    assert mpp.doprint(zeta(x)) == '<mrow><mi>&#x3B6;</mi><mfenced><mi>x</mi></mfenced></mrow>'
    assert mpp.doprint(zeta(x, y)) == '<mrow><mi>&#x3B6;</mi><mfenced><mi>x</mi><mi>y</mi></mfenced></mrow>'
    assert mpp.doprint(dirichlet_eta(x)) ==  '<mrow><mi>&#x3B7;</mi><mfenced><mi>x</mi></mfenced></mrow>'
    assert mpp.doprint(elliptic_k(x)) == '<mrow><mi>&#x39A;</mi><mfenced><mi>x</mi></mfenced></mrow>'
    assert mpp.doprint(totient(x)) == '<mrow><mi>&#x3D5;</mi><mfenced><mi>x</mi></mfenced></mrow>'
    assert mpp.doprint(reduced_totient(x)) == '<mrow><mi>&#x3BB;</mi><mfenced><mi>x</mi></mfenced></mrow>'
    assert mpp.doprint(primenu(x)) == '<mrow><mi>&#x3BD;</mi><mfenced><mi>x</mi></mfenced></mrow>'
    assert mpp.doprint(primeomega(x)) == '<mrow><mi>&#x3A9;</mi><mfenced><mi>x</mi></mfenced></mrow>'
    assert mpp.doprint(fresnels(x)) == '<mrow><mi>S</mi><mfenced><mi>x</mi></mfenced></mrow>'
    assert mpp.doprint(fresnelc(x)) ==  '<mrow><mi>C</mi><mfenced><mi>x</mi></mfenced></mrow>'
    assert mpp.doprint(Heaviside(x)) == '<mrow><mi>&#x398;</mi><mfenced><mi>x</mi></mfenced></mrow>'


def test_mathml_builtins():
    assert mpp.doprint(None) == '<mi>None</mi>'
    assert mpp.doprint(true) == '<mi>True</mi>'
    assert mpp.doprint(false) == '<mi>False</mi>'


def test_mathml_Range():
    assert mpp.doprint(Range(1, 51)) == \
        '<mfenced close="}" open="{"><mn>1</mn><mn>2</mn><mi>&#8230;</mi><mn>50</mn></mfenced>'
    assert mpp.doprint(Range(1, 4)) == \
        '<mfenced close="}" open="{"><mn>1</mn><mn>2</mn><mn>3</mn></mfenced>'
    assert mpp.doprint(Range(0, 3, 1)) == \
        '<mfenced close="}" open="{"><mn>0</mn><mn>1</mn><mn>2</mn></mfenced>'
    assert mpp.doprint(Range(0, 30, 1)) == \
        '<mfenced close="}" open="{"><mn>0</mn><mn>1</mn><mi>&#8230;</mi><mn>29</mn></mfenced>'
    assert mpp.doprint(Range(30, 1, -1)) == \
        '<mfenced close="}" open="{"><mn>30</mn><mn>29</mn><mi>&#8230;</mi>'\
        '<mn>2</mn></mfenced>'
    assert mpp.doprint(Range(0, oo, 2)) == \
        '<mfenced close="}" open="{"><mn>0</mn><mn>2</mn><mi>&#8230;</mi></mfenced>'
    assert mpp.doprint(Range(oo, -2, -2)) == \
        '<mfenced close="}" open="{"><mi>&#8230;</mi><mn>2</mn><mn>0</mn></mfenced>'
    assert mpp.doprint(Range(-2, -oo, -1)) == \
        '<mfenced close="}" open="{"><mn>-2</mn><mn>-3</mn><mi>&#8230;</mi></mfenced>'


def test_print_exp():
    assert mpp.doprint(exp(x)) == \
        '<msup><mi>&ExponentialE;</mi><mi>x</mi></msup>'
    assert mpp.doprint(exp(1) + exp(2)) == \
        '<mrow><mi>&ExponentialE;</mi><mo>+</mo><msup><mi>&ExponentialE;</mi><mn>2</mn></msup></mrow>'


def test_print_MinMax():
    assert mpp.doprint(Min(x, y)) == \
        '<mrow><mo>min</mo><mfenced><mi>x</mi><mi>y</mi></mfenced></mrow>'
    assert mpp.doprint(Min(x, 2, x**3)) == \
        '<mrow><mo>min</mo><mfenced><mn>2</mn><mi>x</mi><msup><mi>x</mi>'\
        '<mn>3</mn></msup></mfenced></mrow>'
    assert mpp.doprint(Max(x, y)) == \
        '<mrow><mo>max</mo><mfenced><mi>x</mi><mi>y</mi></mfenced></mrow>'
    assert mpp.doprint(Max(x, 2, x**3)) == \
        '<mrow><mo>max</mo><mfenced><mn>2</mn><mi>x</mi><msup><mi>x</mi>'\
        '<mn>3</mn></msup></mfenced></mrow>'


def test_mathml_presentation_numbers():
    n = Symbol('n')
    assert mathml(catalan(n), printer='presentation') == \
        '<msub><mi>C</mi><mi>n</mi></msub>'
    assert mathml(bernoulli(n), printer='presentation') == \
        '<msub><mi>B</mi><mi>n</mi></msub>'
    assert mathml(bell(n), printer='presentation') == \
        '<msub><mi>B</mi><mi>n</mi></msub>'
    assert mathml(fibonacci(n), printer='presentation') == \
        '<msub><mi>F</mi><mi>n</mi></msub>'
    assert mathml(lucas(n), printer='presentation') == \
        '<msub><mi>L</mi><mi>n</mi></msub>'
    assert mathml(tribonacci(n), printer='presentation') == \
        '<msub><mi>T</mi><mi>n</mi></msub>'


def test_print_matrix_symbol():
    A = MatrixSymbol('A', 1, 2)
    assert mpp.doprint(A) == '<mi>A</mi>'
    assert mp.doprint(A) == '<ci>A</ci>'
    assert mathml(A, printer='presentation', mat_symbol_style="bold") == \
        '<mi mathvariant="bold">A</mi>'
    # No effect in content printer
    assert mathml(A, mat_symbol_style="bold") == '<ci>A</ci>'


def test_print_random_symbol():
    R = RandomSymbol(Symbol('R'))
    assert mpp.doprint(R) == '<mi>R</mi>'
    assert mp.doprint(R) == '<ci>R</ci>'


def test_print_IndexedBase():
    assert mathml(IndexedBase(a)[b], printer='presentation') == \
        '<msub><mi>a</mi><mi>b</mi></msub>'
    assert mathml(IndexedBase(a)[b, c, d], printer='presentation') == \
        '<msub><mi>a</mi><mfenced><mi>b</mi><mi>c</mi><mi>d</mi></mfenced></msub>'
    assert mathml(IndexedBase(a)[b]*IndexedBase(c)[d]*IndexedBase(e),
                  printer='presentation') == \
                  '<mrow><msub><mi>a</mi><mi>b</mi></msub><mo>&InvisibleTimes;'\
                  '</mo><msub><mi>c</mi><mi>d</mi></msub><mo>&InvisibleTimes;</mo><mi>e</mi></mrow>'


def test_print_Indexed():
    assert mathml(IndexedBase(a), printer='presentation') == '<mi>a</mi>'
    assert mathml(IndexedBase(a/b), printer='presentation') == \
        '<mrow><mfrac><mi>a</mi><mi>b</mi></mfrac></mrow>'
    assert mathml(IndexedBase((a, b)), printer='presentation') == \
        '<mrow><mfenced><mi>a</mi><mi>b</mi></mfenced></mrow>'

def test_print_MatrixElement():
    i, j = symbols('i j')
    A = MatrixSymbol('A', i, j)
    assert mathml(A[0,0],printer = 'presentation') == \
        '<msub><mi>A</mi><mfenced close="" open=""><mn>0</mn><mn>0</mn></mfenced></msub>'
    assert mathml(A[i,j], printer = 'presentation') == \
        '<msub><mi>A</mi><mfenced close="" open=""><mi>i</mi><mi>j</mi></mfenced></msub>'
    assert mathml(A[i*j,0], printer = 'presentation') == \
        '<msub><mi>A</mi><mfenced close="" open=""><mrow><mi>i</mi><mo>&InvisibleTimes;</mo><mi>j</mi></mrow><mn>0</mn></mfenced></msub>'


def test_print_Vector():
    ACS = CoordSys3D('A')
    assert mathml(Cross(ACS.i, ACS.j*ACS.x*3 + ACS.k), printer='presentation') == \
        '<mrow><msub><mover><mi mathvariant="bold">i</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub><mo>&#xD7;</mo><mfenced><mrow>'\
        '<mfenced><mrow><mn>3</mn><mo>&InvisibleTimes;</mo><msub>'\
        '<mi mathvariant="bold">x</mi><mi mathvariant="bold">A</mi></msub>'\
        '</mrow></mfenced><mo>&InvisibleTimes;</mo><msub><mover>'\
        '<mi mathvariant="bold">j</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub><mo>+</mo><msub><mover>'\
        '<mi mathvariant="bold">k</mi><mo>^</mo></mover><mi mathvariant="bold">'\
        'A</mi></msub></mrow></mfenced></mrow>'
    assert mathml(Cross(ACS.i, ACS.j), printer='presentation') == \
        '<mrow><msub><mover><mi mathvariant="bold">i</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub><mo>&#xD7;</mo><msub><mover>'\
        '<mi mathvariant="bold">j</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub></mrow>'
    assert mathml(x*Cross(ACS.i, ACS.j), printer='presentation') == \
        '<mrow><mi>x</mi><mo>&InvisibleTimes;</mo><mrow><msub><mover>'\
        '<mi mathvariant="bold">i</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub><mo>&#xD7;</mo><msub><mover>'\
        '<mi mathvariant="bold">j</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub></mrow></mrow>'
    assert mathml(Cross(x*ACS.i, ACS.j), printer='presentation') == \
        '<mrow><mo>-</mo><mrow><msub><mover><mi mathvariant="bold">j</mi>'\
        '<mo>^</mo></mover><mi mathvariant="bold">A</mi></msub>'\
        '<mo>&#xD7;</mo><mfenced><mrow><mfenced><mi>x</mi></mfenced>'\
        '<mo>&InvisibleTimes;</mo><msub><mover><mi mathvariant="bold">i</mi>'\
        '<mo>^</mo></mover><mi mathvariant="bold">A</mi></msub></mrow>'\
        '</mfenced></mrow></mrow>'
    assert mathml(Curl(3*ACS.x*ACS.j), printer='presentation') == \
        '<mrow><mo>&#x2207;</mo><mo>&#xD7;</mo><mfenced><mrow><mfenced><mrow>'\
        '<mn>3</mn><mo>&InvisibleTimes;</mo><msub>'\
        '<mi mathvariant="bold">x</mi><mi mathvariant="bold">A</mi></msub>'\
        '</mrow></mfenced><mo>&InvisibleTimes;</mo><msub><mover>'\
        '<mi mathvariant="bold">j</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub></mrow></mfenced></mrow>'
    assert mathml(Curl(3*x*ACS.x*ACS.j), printer='presentation') == \
        '<mrow><mo>&#x2207;</mo><mo>&#xD7;</mo><mfenced><mrow><mfenced><mrow>'\
        '<mn>3</mn><mo>&InvisibleTimes;</mo><msub><mi mathvariant="bold">x'\
        '</mi><mi mathvariant="bold">A</mi></msub><mo>&InvisibleTimes;</mo>'\
        '<mi>x</mi></mrow></mfenced><mo>&InvisibleTimes;</mo><msub><mover>'\
        '<mi mathvariant="bold">j</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub></mrow></mfenced></mrow>'
    assert mathml(x*Curl(3*ACS.x*ACS.j), printer='presentation') == \
        '<mrow><mi>x</mi><mo>&InvisibleTimes;</mo><mrow><mo>&#x2207;</mo>'\
        '<mo>&#xD7;</mo><mfenced><mrow><mfenced><mrow><mn>3</mn>'\
        '<mo>&InvisibleTimes;</mo><msub><mi mathvariant="bold">x</mi>'\
        '<mi mathvariant="bold">A</mi></msub></mrow></mfenced>'\
        '<mo>&InvisibleTimes;</mo><msub><mover><mi mathvariant="bold">j</mi>'\
        '<mo>^</mo></mover><mi mathvariant="bold">A</mi></msub></mrow>'\
        '</mfenced></mrow></mrow>'
    assert mathml(Curl(3*x*ACS.x*ACS.j + ACS.i), printer='presentation') == \
        '<mrow><mo>&#x2207;</mo><mo>&#xD7;</mo><mfenced><mrow><msub><mover>'\
        '<mi mathvariant="bold">i</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub><mo>+</mo><mfenced><mrow>'\
        '<mn>3</mn><mo>&InvisibleTimes;</mo><msub><mi mathvariant="bold">x'\
        '</mi><mi mathvariant="bold">A</mi></msub><mo>&InvisibleTimes;</mo>'\
        '<mi>x</mi></mrow></mfenced><mo>&InvisibleTimes;</mo><msub><mover>'\
        '<mi mathvariant="bold">j</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub></mrow></mfenced></mrow>'
    assert mathml(Divergence(3*ACS.x*ACS.j), printer='presentation') == \
        '<mrow><mo>&#x2207;</mo><mo>&#xB7;</mo><mfenced><mrow><mfenced><mrow>'\
        '<mn>3</mn><mo>&InvisibleTimes;</mo><msub><mi mathvariant="bold">x'\
        '</mi><mi mathvariant="bold">A</mi></msub></mrow></mfenced>'\
        '<mo>&InvisibleTimes;</mo><msub><mover><mi mathvariant="bold">j</mi>'\
        '<mo>^</mo></mover><mi mathvariant="bold">A</mi></msub></mrow></mfenced></mrow>'
    assert mathml(x*Divergence(3*ACS.x*ACS.j), printer='presentation') == \
        '<mrow><mi>x</mi><mo>&InvisibleTimes;</mo><mrow><mo>&#x2207;</mo>'\
        '<mo>&#xB7;</mo><mfenced><mrow><mfenced><mrow><mn>3</mn>'\
        '<mo>&InvisibleTimes;</mo><msub><mi mathvariant="bold">x</mi>'\
        '<mi mathvariant="bold">A</mi></msub></mrow></mfenced>'\
        '<mo>&InvisibleTimes;</mo><msub><mover><mi mathvariant="bold">j</mi>'\
        '<mo>^</mo></mover><mi mathvariant="bold">A</mi></msub></mrow>'\
        '</mfenced></mrow></mrow>'
    assert mathml(Divergence(3*x*ACS.x*ACS.j + ACS.i), printer='presentation') == \
        '<mrow><mo>&#x2207;</mo><mo>&#xB7;</mo><mfenced><mrow><msub><mover>'\
        '<mi mathvariant="bold">i</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub><mo>+</mo><mfenced><mrow>'\
        '<mn>3</mn><mo>&InvisibleTimes;</mo><msub>'\
        '<mi mathvariant="bold">x</mi><mi mathvariant="bold">A</mi></msub>'\
        '<mo>&InvisibleTimes;</mo><mi>x</mi></mrow></mfenced>'\
        '<mo>&InvisibleTimes;</mo><msub><mover><mi mathvariant="bold">j</mi>'\
        '<mo>^</mo></mover><mi mathvariant="bold">A</mi></msub></mrow></mfenced></mrow>'
    assert mathml(Dot(ACS.i, ACS.j*ACS.x*3+ACS.k), printer='presentation') == \
        '<mrow><msub><mover><mi mathvariant="bold">i</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub><mo>&#xB7;</mo><mfenced><mrow>'\
        '<mfenced><mrow><mn>3</mn><mo>&InvisibleTimes;</mo><msub>'\
        '<mi mathvariant="bold">x</mi><mi mathvariant="bold">A</mi></msub>'\
        '</mrow></mfenced><mo>&InvisibleTimes;</mo><msub><mover>'\
        '<mi mathvariant="bold">j</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub><mo>+</mo><msub><mover>'\
        '<mi mathvariant="bold">k</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub></mrow></mfenced></mrow>'
    assert mathml(Dot(ACS.i, ACS.j), printer='presentation') == \
        '<mrow><msub><mover><mi mathvariant="bold">i</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub><mo>&#xB7;</mo><msub><mover>'\
        '<mi mathvariant="bold">j</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub></mrow>'
    assert mathml(Dot(x*ACS.i, ACS.j), printer='presentation') == \
        '<mrow><msub><mover><mi mathvariant="bold">j</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub><mo>&#xB7;</mo><mfenced><mrow>'\
        '<mfenced><mi>x</mi></mfenced><mo>&InvisibleTimes;</mo><msub><mover>'\
        '<mi mathvariant="bold">i</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub></mrow></mfenced></mrow>'
    assert mathml(x*Dot(ACS.i, ACS.j), printer='presentation') == \
        '<mrow><mi>x</mi><mo>&InvisibleTimes;</mo><mrow><msub><mover>'\
        '<mi mathvariant="bold">i</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub><mo>&#xB7;</mo><msub><mover>'\
        '<mi mathvariant="bold">j</mi><mo>^</mo></mover>'\
        '<mi mathvariant="bold">A</mi></msub></mrow></mrow>'
    assert mathml(Gradient(ACS.x), printer='presentation') == \
        '<mrow><mo>&#x2207;</mo><msub><mi mathvariant="bold">x</mi>'\
        '<mi mathvariant="bold">A</mi></msub></mrow>'
    assert mathml(Gradient(ACS.x + 3*ACS.y), printer='presentation') == \
        '<mrow><mo>&#x2207;</mo><mfenced><mrow><msub><mi mathvariant="bold">'\
        'x</mi><mi mathvariant="bold">A</mi></msub><mo>+</mo><mrow><mn>3</mn>'\
        '<mo>&InvisibleTimes;</mo><msub><mi mathvariant="bold">y</mi>'\
        '<mi mathvariant="bold">A</mi></msub></mrow></mrow></mfenced></mrow>'
    assert mathml(x*Gradient(ACS.x), printer='presentation') == \
        '<mrow><mi>x</mi><mo>&InvisibleTimes;</mo><mrow><mo>&#x2207;</mo>'\
        '<msub><mi mathvariant="bold">x</mi><mi mathvariant="bold">A</mi>'\
        '</msub></mrow></mrow>'
    assert mathml(Gradient(x*ACS.x), printer='presentation') == \
        '<mrow><mo>&#x2207;</mo><mfenced><mrow><msub><mi mathvariant="bold">'\
        'x</mi><mi mathvariant="bold">A</mi></msub><mo>&InvisibleTimes;</mo>'\
        '<mi>x</mi></mrow></mfenced></mrow>'
    assert mathml(Cross(ACS.x, ACS.z) + Cross(ACS.z, ACS.x), printer='presentation') == \
        '<mover><mi mathvariant="bold">0</mi><mo>^</mo></mover>'
    assert mathml(Cross(ACS.z, ACS.x), printer='presentation') == \
        '<mrow><mo>-</mo><mrow><msub><mi mathvariant="bold">x</mi>'\
        '<mi mathvariant="bold">A</mi></msub><mo>&#xD7;</mo><msub>'\
        '<mi mathvariant="bold">z</mi><mi mathvariant="bold">A</mi></msub></mrow></mrow>'
    assert mathml(Laplacian(ACS.x), printer='presentation') == \
        '<mrow><mo>&#x2206;</mo><msub><mi mathvariant="bold">x</mi>'\
        '<mi mathvariant="bold">A</mi></msub></mrow>'
    assert mathml(Laplacian(ACS.x + 3*ACS.y), printer='presentation') == \
        '<mrow><mo>&#x2206;</mo><mfenced><mrow><msub><mi mathvariant="bold">'\
        'x</mi><mi mathvariant="bold">A</mi></msub><mo>+</mo><mrow><mn>3</mn>'\
        '<mo>&InvisibleTimes;</mo><msub><mi mathvariant="bold">y</mi>'\
        '<mi mathvariant="bold">A</mi></msub></mrow></mrow></mfenced></mrow>'
    assert mathml(x*Laplacian(ACS.x), printer='presentation') == \
        '<mrow><mi>x</mi><mo>&InvisibleTimes;</mo><mrow><mo>&#x2206;</mo>'\
        '<msub><mi mathvariant="bold">x</mi><mi mathvariant="bold">A</mi>'\
        '</msub></mrow></mrow>'
    assert mathml(Laplacian(x*ACS.x), printer='presentation') == \
        '<mrow><mo>&#x2206;</mo><mfenced><mrow><msub><mi mathvariant="bold">'\
        'x</mi><mi mathvariant="bold">A</mi></msub><mo>&InvisibleTimes;</mo>'\
        '<mi>x</mi></mrow></mfenced></mrow>'

def test_print_elliptic_f():
    assert mathml(elliptic_f(x, y), printer = 'presentation') == \
        '<mrow><mi>&#x1d5a5;</mi><mfenced separators="|"><mi>x</mi><mi>y</mi></mfenced></mrow>'
    assert mathml(elliptic_f(x/y, y), printer = 'presentation') == \
        '<mrow><mi>&#x1d5a5;</mi><mfenced separators="|"><mrow><mfrac><mi>x</mi><mi>y</mi></mfrac></mrow><mi>y</mi></mfenced></mrow>'

def test_print_elliptic_e():
    assert mathml(elliptic_e(x), printer = 'presentation') == \
        '<mrow><mi>&#x1d5a4;</mi><mfenced separators="|"><mi>x</mi></mfenced></mrow>'
    assert mathml(elliptic_e(x, y), printer = 'presentation') == \
        '<mrow><mi>&#x1d5a4;</mi><mfenced separators="|"><mi>x</mi><mi>y</mi></mfenced></mrow>'

def test_print_elliptic_pi():
    assert mathml(elliptic_pi(x, y), printer = 'presentation') == \
        '<mrow><mi>&#x1d6f1;</mi><mfenced separators="|"><mi>x</mi><mi>y</mi></mfenced></mrow>'
    assert mathml(elliptic_pi(x, y, z), printer = 'presentation') == \
        '<mrow><mi>&#x1d6f1;</mi><mfenced separators=";|"><mi>x</mi><mi>y</mi><mi>z</mi></mfenced></mrow>'

def test_print_Ei():
    assert mathml(Ei(x), printer = 'presentation') == \
        '<mrow><mi>Ei</mi><mfenced><mi>x</mi></mfenced></mrow>'
    assert mathml(Ei(x**y), printer = 'presentation') == \
        '<mrow><mi>Ei</mi><mfenced><msup><mi>x</mi><mi>y</mi></msup></mfenced></mrow>'

def test_print_expint():
    assert mathml(expint(x, y), printer = 'presentation') == \
        '<mrow><msub><mo>E</mo><mi>x</mi></msub><mfenced><mi>y</mi></mfenced></mrow>'
    assert mathml(expint(IndexedBase(x)[1], IndexedBase(x)[2]), printer = 'presentation') == \
        '<mrow><msub><mo>E</mo><msub><mi>x</mi><mn>1</mn></msub></msub><mfenced><msub><mi>x</mi><mn>2</mn></msub></mfenced></mrow>'

def test_print_jacobi():
    assert mathml(jacobi(n, a, b, x), printer = 'presentation') == \
        '<mrow><msubsup><mo>P</mo><mi>n</mi><mfenced><mi>a</mi><mi>b</mi></mfenced></msubsup><mfenced><mi>x</mi></mfenced></mrow>'

def test_print_gegenbauer():
    assert mathml(gegenbauer(n, a, x), printer = 'presentation') == \
        '<mrow><msubsup><mo>C</mo><mi>n</mi><mfenced><mi>a</mi></mfenced></msubsup><mfenced><mi>x</mi></mfenced></mrow>'

def test_print_chebyshevt():
    assert mathml(chebyshevt(n, x), printer = 'presentation') == \
        '<mrow><msub><mo>T</mo><mi>n</mi></msub><mfenced><mi>x</mi></mfenced></mrow>'

def test_print_chebyshevu():
    assert mathml(chebyshevu(n, x), printer = 'presentation') == \
        '<mrow><msub><mo>U</mo><mi>n</mi></msub><mfenced><mi>x</mi></mfenced></mrow>'

def test_print_legendre():
    assert mathml(legendre(n, x), printer = 'presentation') == \
        '<mrow><msub><mo>P</mo><mi>n</mi></msub><mfenced><mi>x</mi></mfenced></mrow>'

def test_print_assoc_legendre():
    assert mathml(assoc_legendre(n, a, x), printer = 'presentation') == \
        '<mrow><msubsup><mo>P</mo><mi>n</mi><mfenced><mi>a</mi></mfenced></msubsup><mfenced><mi>x</mi></mfenced></mrow>'

def test_print_laguerre():
    assert mathml(laguerre(n, x), printer = 'presentation') == \
        '<mrow><msub><mo>L</mo><mi>n</mi></msub><mfenced><mi>x</mi></mfenced></mrow>'

def test_print_assoc_laguerre():
    assert mathml(assoc_laguerre(n, a, x), printer = 'presentation') == \
        '<mrow><msubsup><mo>L</mo><mi>n</mi><mfenced><mi>a</mi></mfenced></msubsup><mfenced><mi>x</mi></mfenced></mrow>'

def test_print_hermite():
    assert mathml(hermite(n, x), printer = 'presentation') == \
        '<mrow><msub><mo>H</mo><mi>n</mi></msub><mfenced><mi>x</mi></mfenced></mrow>'

def test_mathml_SingularityFunction():
    assert mathml(SingularityFunction(x, 4, 5), printer='presentation') == \
        '<msup><mfenced close="&#10217;" open="&#10216;"><mrow><mi>x</mi>' \
        '<mo>-</mo><mn>4</mn></mrow></mfenced><mn>5</mn></msup>'
    assert mathml(SingularityFunction(x, -3, 4), printer='presentation') == \
        '<msup><mfenced close="&#10217;" open="&#10216;"><mrow><mi>x</mi>' \
        '<mo>+</mo><mn>3</mn></mrow></mfenced><mn>4</mn></msup>'
    assert mathml(SingularityFunction(x, 0, 4), printer='presentation') == \
        '<msup><mfenced close="&#10217;" open="&#10216;"><mi>x</mi></mfenced>' \
        '<mn>4</mn></msup>'
    assert mathml(SingularityFunction(x, a, n), printer='presentation') == \
        '<msup><mfenced close="&#10217;" open="&#10216;"><mrow><mrow>' \
        '<mo>-</mo><mi>a</mi></mrow><mo>+</mo><mi>x</mi></mrow></mfenced>' \
        '<mi>n</mi></msup>'
    assert mathml(SingularityFunction(x, 4, -2), printer='presentation') == \
        '<msup><mfenced close="&#10217;" open="&#10216;"><mrow><mi>x</mi>' \
        '<mo>-</mo><mn>4</mn></mrow></mfenced><mn>-2</mn></msup>'
    assert mathml(SingularityFunction(x, 4, -1), printer='presentation') == \
        '<msup><mfenced close="&#10217;" open="&#10216;"><mrow><mi>x</mi>' \
        '<mo>-</mo><mn>4</mn></mrow></mfenced><mn>-1</mn></msup>'


def test_mathml_matrix_functions():
    from sympy.matrices import MatrixSymbol, Adjoint, Inverse, Transpose
    X = MatrixSymbol('X', 2, 2)
    Y = MatrixSymbol('Y', 2, 2)
    assert mathml(Adjoint(X), printer='presentation') == \
        '<msup><mi>X</mi><mo>&#x2020;</mo></msup>'
    assert mathml(Adjoint(X + Y), printer='presentation') == \
        '<msup><mfenced><mrow><mi>X</mi><mo>+</mo><mi>Y</mi></mrow></mfenced><mo>&#x2020;</mo></msup>'
    assert mathml(Adjoint(X) + Adjoint(Y), printer='presentation') == \
        '<mrow><msup><mi>X</mi><mo>&#x2020;</mo></msup><mo>+</mo><msup>' \
        '<mi>Y</mi><mo>&#x2020;</mo></msup></mrow>'
    assert mathml(Adjoint(X*Y), printer='presentation') == \
        '<msup><mfenced><mrow><mi>X</mi><mo>&InvisibleTimes;</mo>' \
        '<mi>Y</mi></mrow></mfenced><mo>&#x2020;</mo></msup>'
    assert mathml(Adjoint(Y)*Adjoint(X), printer='presentation') == \
        '<mrow><msup><mi>Y</mi><mo>&#x2020;</mo></msup><mo>&InvisibleTimes;' \
        '</mo><msup><mi>X</mi><mo>&#x2020;</mo></msup></mrow>'
    assert mathml(Adjoint(X**2), printer='presentation') == \
        '<msup><mfenced><msup><mi>X</mi><mn>2</mn></msup></mfenced><mo>&#x2020;</mo></msup>'
    assert mathml(Adjoint(X)**2, printer='presentation') == \
        '<msup><mfenced><msup><mi>X</mi><mo>&#x2020;</mo></msup></mfenced><mn>2</mn></msup>'
    assert mathml(Adjoint(Inverse(X)), printer='presentation') == \
        '<msup><mfenced><msup><mi>X</mi><mn>-1</mn></msup></mfenced><mo>&#x2020;</mo></msup>'
    assert mathml(Inverse(Adjoint(X)), printer='presentation') == \
        '<msup><mfenced><msup><mi>X</mi><mo>&#x2020;</mo></msup></mfenced><mn>-1</mn></msup>'
    assert mathml(Adjoint(Transpose(X)), printer='presentation') == \
        '<msup><mfenced><msup><mi>X</mi><mo>T</mo></msup></mfenced><mo>&#x2020;</mo></msup>'
    assert mathml(Transpose(Adjoint(X)), printer='presentation') ==  \
        '<msup><mfenced><msup><mi>X</mi><mo>&#x2020;</mo></msup></mfenced><mo>T</mo></msup>'
    assert mathml(Transpose(Adjoint(X) + Y), printer='presentation') ==  \
        '<msup><mfenced><mrow><msup><mi>X</mi><mo>&#x2020;</mo></msup>' \
        '<mo>+</mo><mi>Y</mi></mrow></mfenced><mo>T</mo></msup>'
    assert mathml(Transpose(X), printer='presentation') == \
        '<msup><mi>X</mi><mo>T</mo></msup>'
    assert mathml(Transpose(X + Y), printer='presentation') == \
        '<msup><mfenced><mrow><mi>X</mi><mo>+</mo><mi>Y</mi></mrow></mfenced><mo>T</mo></msup>'


def test_mathml_special_matrices():
    from sympy.matrices import Identity, ZeroMatrix
    assert mathml(Identity(4), printer='presentation') == '<mi>&#x1D540;</mi>'
    assert mathml(ZeroMatrix(2, 2), printer='presentation') == '<mn>&#x1D7D8</mn>'