#-----------------------------------------------------------------------------
# Copyright (c) 2012 - 2019, Anaconda, Inc., and Bokeh Contributors.
# All rights reserved.
#
# The full license is in the file LICENSE.txt, distributed with this software.
#-----------------------------------------------------------------------------

#-----------------------------------------------------------------------------
# Boilerplate
#-----------------------------------------------------------------------------
from __future__ import absolute_import, division, print_function, unicode_literals

import pytest ; pytest

#-----------------------------------------------------------------------------
# Imports
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# Standard library imports

# External imports
from pytest import raises

# Bokeh imports
from bokeh.models import Slider

# Module under test
from bokeh.models import CustomJS

#-----------------------------------------------------------------------------
# Setup
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#-----------------------------------------------------------------------------
# General API
#-----------------------------------------------------------------------------

def test_js_callback():
    slider = Slider()

    cb = CustomJS(code="foo();", args=dict(x=slider))
    assert 'foo()' in cb.code
    assert cb.args['x'] is slider

    cb = CustomJS(code="foo();", args=dict(x=3))
    assert 'foo()' in cb.code
    assert cb.args['x'] == 3

    with raises(AttributeError):  # kwargs not supported
        CustomJS(code="foo();", x=slider)


def test_py_callback():
    slider = Slider()
    foo = None  # fool pyflakes

    def cb(x=slider):
        foo()
    cb = CustomJS.from_py_func(cb)
    assert 'foo()' in cb.code
    assert cb.args['x'] is slider

    def cb(x=4):
        foo()
    cb = CustomJS.from_py_func(cb)
    assert 'foo()' in cb.code
    assert cb.args['x'] == 4

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# Dev API
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# Private API
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#-----------------------------------------------------------------------------
# Code
#-----------------------------------------------------------------------------