#! /usr/bin/env python
# coding: utf-8

# $Id$
# Authors: Lea Wiemann, Dmitry Shachnev, Günter Milde
# Maintainer: docutils-develop@lists.sourceforge.net
# Copyright: This module has been placed in the public domain.

"""
Miscellaneous HTML writer tests.
"""
from __future__ import absolute_import

import os

if __name__ == '__main__':
    import __init__
from test_writers import DocutilsTestSupport
from docutils import core


class EncodingTestCase(DocutilsTestSupport.StandardTestCase):

    def test_xmlcharrefreplace(self):
        # Test that xmlcharrefreplace is the default output encoding
        # error handler.
        settings_overrides={
            'output_encoding': 'latin1',
            'stylesheet': '',
            '_disable_config': True,}
        result = core.publish_string(
            u'EUR = \u20ac', writer_name='html5_polyglot',
            settings_overrides=settings_overrides)
        # Encoding a euro sign with latin1 doesn't work, so the
        # xmlcharrefreplace handler is used.
        self.assertIn(b'EUR = &#8364;', result)

class MovingArgsTestCase(DocutilsTestSupport.StandardTestCase):

    settings_overrides={'stylesheet_path': '',
                        # 'embed_stylesheet': False,
                        '_disable_config': True,
                       }

    def test_definition_list_item_classes(self):
        # Do not drop class arguments for the definition list item.
        # Pass them to the term node instead.
        data = """\
first term:
  fist def

  .. class:: for the second item

second term:
  second def
"""
        result = core.publish_string(data, writer_name='html5_polyglot',
                            settings_overrides=self.settings_overrides)
        self.assertIn(b'<dt class="for the second item">second term:</dt>',
                      result)

    def test_definition_list_item_name(self):
        # Do not drop the "name" of the definition list item.
        # Pass it to to the term node instead.
        data = """\
first term:
  first def

  .. _second item:

second term:
  second def
"""
        result = core.publish_string(data, writer_name='html5_polyglot',
                            settings_overrides=self.settings_overrides)
        self.assertIn(b'<dt id="second-item">second term:</dt>',
                      result)


class SettingsTestCase(DocutilsTestSupport.StandardTestCase):
    data = 'test'

    def test_default_stylesheet(self):
        # default style sheet, embedded
        mysettings = {'_disable_config': True,}
        styles = core.publish_parts(self.data, writer_name='html5_polyglot',
                                  settings_overrides=mysettings)['stylesheet']
        self.assertIn('Minimal style sheet '
                      'for the HTML output of Docutils.', styles)

    def test_default_stylesheet_linked(self):
        # default style sheet, linked
        mysettings = {'_disable_config': True,
                      'embed_stylesheet': False}
        styles = core.publish_parts(self.data, writer_name='html5_polyglot',
                                  settings_overrides=mysettings)['stylesheet']
        self.assertIn('docutils/writers/html5_polyglot/minimal.css', styles)

    def test_math_stylesheet_linked(self):
        # default + math style sheet, linked
        mysettings = {'_disable_config': True,
                      'embed_stylesheet': False,
                      'stylesheet_path': 'minimal.css, math.css'}
        styles = core.publish_parts(self.data, writer_name='html5_polyglot',
                                  settings_overrides=mysettings)['stylesheet']
        self.assertIn('docutils/writers/html5_polyglot/minimal.css', styles)
        self.assertIn('docutils/writers/html5_polyglot/math.css', styles)

    def test_custom_stylesheet_linked(self):
        # default + custom style sheet, linked
        mysettings = {'_disable_config': True,
                      'embed_stylesheet': False,
                      'stylesheet_path': 'minimal.css, '
                                         'data/ham.css'}
        styles = core.publish_parts(self.data, writer_name='html5_polyglot',
                                  settings_overrides=mysettings)['stylesheet']
        self.assertIn('docutils/writers/html5_polyglot/minimal.css', styles)
        self.assertIn('href="data/ham.css"', styles)

    def test_custom_stylesheet_dir(self):
        mysettings = {'_disable_config': True,
                      'embed_stylesheet': False,
                      'stylesheet_dirs': ('../docutils/writers/html5_polyglot/',
                                          'data'),
                      'stylesheet_path': 'minimal.css, ham.css'}
        styles = core.publish_parts(self.data, writer_name='html5_polyglot',
                                  settings_overrides=mysettings)['stylesheet']
        if os.path.isdir('../docutils/writers/html5_polyglot/'):
            self.assertIn('docutils/writers/html5_polyglot/minimal.css', styles)
        self.assertIn('href="data/ham.css"', styles)

    def test_custom_stylesheet_dir_embedded(self):
        mysettings = {'_disable_config': True,
                      'embed_stylesheet': True,
                      'stylesheet_dirs': ('../docutils/writers/html5_polyglot/',
                                          'data'),
                      'stylesheet_path': 'ham.css'}
        styles = core.publish_parts(self.data, writer_name='html5_polyglot',
                                  settings_overrides=mysettings)['stylesheet']
        self.assertIn('dl.docutils dd {\n  margin-bottom: 0.5em }', styles)

class MathTestCase(DocutilsTestSupport.StandardTestCase):

    """Attention: This class tests the current implementation of maths support
    which is open to change in future Docutils releases. """

    mathjax_script = '<script type="text/javascript" src="%s">'
    default_mathjax_url = ('file:/usr/share/javascript/mathjax/MathJax.js'
                           '?config=TeX-AMS_CHTML')
    custom_mathjax_url = ('/mathjax/MathJax.js?config=TeX-AMS-MML_HTMLorMML')
    data = ':math:`42`'

    def test_math_output_default(self):
        # HTML with math.css stylesheet (since 0.11)
        mysettings = {'_disable_config': True,}
        styles = core.publish_parts(self.data, writer_name='html5_polyglot',
                                  settings_overrides=mysettings)['stylesheet']
        self.assertIn('convert LaTeX equations to HTML output.', styles)

    def test_math_output_mathjax(self):
        # Explicitly specifying math_output=MathJax, case insensitively
        # use default MathJax URL
        mysettings = {'_disable_config': True,
                      'report_level': 3,
                      'math_output': 'MathJax'}
        head = core.publish_parts(self.data, writer_name='html5_polyglot',
            settings_overrides=mysettings)['head']
        self.assertIn(self.mathjax_script % self.default_mathjax_url, head)

    def test_math_output_mathjax_custom(self):
        # Customizing MathJax URL
        mysettings = {'_disable_config': True,
                      'math_output':
                      'mathjax %s' % self.custom_mathjax_url}
        head = core.publish_parts(self.data, writer_name='html5_polyglot',
            settings_overrides=mysettings)['head']
        self.assertIn(self.mathjax_script % self.custom_mathjax_url, head)

    def test_math_output_html(self):
        mysettings = {'_disable_config': True,
                      'math_output': 'HTML'}
        head = core.publish_parts(self.data, writer_name='html5_polyglot',
            settings_overrides=mysettings)['head']
        # There should be no MathJax script when math_output is not MathJax
        self.assertNotIn('MathJax.js', head)

    def test_math_output_html_stylesheet(self):
        mysettings = {'_disable_config': True,
                      'math_output': 'HTML math.css,custom/style.css',
                      'stylesheet_dirs': ('.', 'functional/input/data'),
                      'embed_stylesheet': False}
        styles = core.publish_parts(self.data, writer_name='html5_polyglot',
            settings_overrides=mysettings)['stylesheet']
        self.assertEqual(u"""\
<link rel="stylesheet" href="functional/input/data/minimal.css" type="text/css" />
<link rel="stylesheet" href="functional/input/data/plain.css" type="text/css" />
<link rel="stylesheet" href="functional/input/data/math.css" type="text/css" />
<link rel="stylesheet" href="custom/style.css" type="text/css" />
""", styles)

    def test_math_output_mathjax_no_math(self):
        mysettings = {'_disable_config': True,
                      'math_output': 'MathJax'}
        # There should be no math script when text does not contain math
        head = core.publish_parts('No math.', writer_name='html5_polyglot')['head']
        self.assertNotIn('MathJax', head)


if __name__ == '__main__':
    import unittest
    unittest.main()
