"""
Python-Markdown Extension Regression Tests
==========================================

A collection of regression tests to confirm that the included extensions
continue to work as advertised. This used to be accomplished by doctests.

"""

from __future__ import unicode_literals
import datetime
import unittest
import markdown


class TestExtensionClass(unittest.TestCase):
    """ Test markdown.extensions.Extension. """

    def setUp(self):
        class TestExtension(markdown.extensions.Extension):
            config = {
                'foo': ['bar', 'Description of foo'],
                'bar': ['baz', 'Description of bar']
            }

        self.ext = TestExtension()
        self.ExtKlass = TestExtension

    def testGetConfig(self):
        self.assertEqual(self.ext.getConfig('foo'), 'bar')

    def testGetConfigDefault(self):
        self.assertEqual(self.ext.getConfig('baz'), '')
        self.assertEqual(self.ext.getConfig('baz', default='missing'), 'missing')

    def testGetConfigs(self):
        self.assertEqual(self.ext.getConfigs(), {'foo': 'bar', 'bar': 'baz'})

    def testGetConfigInfo(self):
        self.assertEqual(
            dict(self.ext.getConfigInfo()),
            dict([
                ('foo', 'Description of foo'),
                ('bar', 'Description of bar')
            ])
        )

    def testSetConfig(self):
        self.ext.setConfig('foo', 'baz')
        self.assertEqual(self.ext.getConfigs(), {'foo': 'baz', 'bar': 'baz'})

    def testSetConfigWithBadKey(self):
        # self.ext.setConfig('bad', 'baz) ==> KeyError
        self.assertRaises(KeyError, self.ext.setConfig, 'bad', 'baz')

    def testConfigAsKwargsOnInit(self):
        ext = self.ExtKlass(foo='baz', bar='blah')
        self.assertEqual(ext.getConfigs(), {'foo': 'baz', 'bar': 'blah'})


class TestAbbr(unittest.TestCase):
    """ Test abbr extension. """

    def setUp(self):
        self.md = markdown.Markdown(extensions=['markdown.extensions.abbr'])

    def testSimpleAbbr(self):
        """ Test Abbreviations. """
        text = 'Some text with an ABBR and a REF. Ignore REFERENCE and ref.' + \
               '\n\n*[ABBR]: Abbreviation\n' + \
               '*[REF]: Abbreviation Reference'
        self.assertEqual(
            self.md.convert(text),
            '<p>Some text with an <abbr title="Abbreviation">ABBR</abbr> '
            'and a <abbr title="Abbreviation Reference">REF</abbr>. Ignore '
            'REFERENCE and ref.</p>'
        )

    def testNestedAbbr(self):
        """ Test Nested Abbreviations. """
        text = '[ABBR](/foo) and _ABBR_\n\n' + \
               '*[ABBR]: Abreviation'
        self.assertEqual(
            self.md.convert(text),
            '<p><a href="/foo"><abbr title="Abreviation">ABBR</abbr></a> '
            'and <em><abbr title="Abreviation">ABBR</abbr></em></p>'
        )


class TestCodeHilite(unittest.TestCase):
    """ Test codehilite extension. """

    def setUp(self):
        self.has_pygments = True
        try:
            import pygments  # noqa
        except ImportError:
            self.has_pygments = False

    def testBasicCodeHilite(self):
        text = '\t# A Code Comment'
        md = markdown.Markdown(extensions=['markdown.extensions.codehilite'])
        if self.has_pygments:
            # Pygments can use random lexer here as we did not specify the language
            self.assertTrue(md.convert(text).startswith('<div class="codehilite"><pre>'))
        else:
            self.assertEqual(
                md.convert(text),
                '<pre class="codehilite"><code># A Code Comment'
                '</code></pre>'
            )

    def testLinenumsTrue(self):
        text = '\t# A Code Comment'
        md = markdown.Markdown(
            extensions=[markdown.extensions.codehilite.CodeHiliteExtension(linenums=True)])
        if self.has_pygments:
            # Different versions of pygments output slightly different markup.
            # So we use 'startwith' and test just enough to confirm that
            # pygments received and processed linenums.
            self.assertTrue(
                md.convert(text).startswith(
                    '<table class="codehilitetable"><tr><td class="linenos">'
                )
            )
        else:
            self.assertEqual(
                md.convert(text),
                '<pre class="codehilite"><code class="linenums"># A Code Comment'
                '</code></pre>'
            )

    def testLinenumsFalse(self):
        text = '\t#!Python\n\t# A Code Comment'
        md = markdown.Markdown(
            extensions=[markdown.extensions.codehilite.CodeHiliteExtension(linenums=False)])
        if self.has_pygments:
            self.assertEqual(
                md.convert(text),
                '<div class="codehilite">'
                '<pre><span class="c"># A Code Comment</span>\n'
                '</pre></div>'
            )
        else:
            self.assertEqual(
                md.convert(text),
                '<pre class="codehilite"><code class="language-python"># A Code Comment'
                '</code></pre>'
            )

    def testLinenumsNone(self):
        text = '\t# A Code Comment'
        md = markdown.Markdown(
            extensions=[markdown.extensions.codehilite.CodeHiliteExtension(linenums=None)])
        if self.has_pygments:
            # Pygments can use random lexer here as we did not specify the language
            self.assertTrue(md.convert(text).startswith('<div class="codehilite"><pre>'))
        else:
            self.assertEqual(
                md.convert(text),
                '<pre class="codehilite"><code># A Code Comment'
                '</code></pre>'
            )

    def testLinenumsNoneWithShebang(self):
        text = '\t#!Python\n\t# A Code Comment'
        md = markdown.Markdown(
            extensions=[markdown.extensions.codehilite.CodeHiliteExtension(linenums=None)])
        if self.has_pygments:
            # Differant versions of pygments output slightly different markup.
            # So we use 'startwith' and test just enough to confirm that
            # pygments received and processed linenums.
            self.assertTrue(
                md.convert(text).startswith(
                    '<table class="codehilitetable"><tr><td class="linenos">'
                )
            )
        else:
            self.assertEqual(
                md.convert(text),
                '<pre class="codehilite"><code class="language-python linenums"># A Code Comment'
                '</code></pre>'
            )

    def testLinenumsNoneWithColon(self):
        text = '\t:::Python\n\t# A Code Comment'
        md = markdown.Markdown(
            extensions=[markdown.extensions.codehilite.CodeHiliteExtension(linenums=None)]
        )
        if self.has_pygments:
            self.assertEqual(
                md.convert(text),
                '<div class="codehilite">'
                '<pre><span class="c"># A Code Comment</span>\n'
                '</pre></div>'
            )
        else:
            self.assertEqual(
                md.convert(text),
                '<pre class="codehilite"><code class="language-python"># A Code Comment'
                '</code></pre>'
            )

    def testHighlightLinesWithColon(self):
        # Test with hl_lines delimited by single or double quotes.
        text0 = '\t:::Python hl_lines="2"\n\t#line 1\n\t#line 2\n\t#line 3'
        text1 = "\t:::Python hl_lines='2'\n\t#line 1\n\t#line 2\n\t#line 3"

        for text in (text0, text1):
            md = markdown.Markdown(extensions=['markdown.extensions.codehilite'])
            if self.has_pygments:
                self.assertEqual(
                    md.convert(text),
                    '<div class="codehilite"><pre>'
                    '<span class="c">#line 1</span>\n'
                    '<span class="hll"><span class="c">#line 2</span>\n</span>'
                    '<span class="c">#line 3</span>\n'
                    '</pre></div>'
                )
            else:
                self.assertEqual(
                    md.convert(text),
                    '<pre class="codehilite">'
                    '<code class="language-python">#line 1\n'
                    '#line 2\n'
                    '#line 3</code></pre>'
                )


class TestFencedCode(unittest.TestCase):
    """ Test fenced_code extension. """

    def setUp(self):
        self.md = markdown.Markdown(extensions=['markdown.extensions.fenced_code'])
        self.has_pygments = True
        try:
            import pygments  # noqa
        except ImportError:
            self.has_pygments = False

    def testBasicFence(self):
        """ Test Fenced Code Blocks. """
        text = '''
A paragraph before a fenced code block:

~~~
Fenced code block
~~~'''
        self.assertEqual(
            self.md.convert(text),
            '<p>A paragraph before a fenced code block:</p>\n'
            '<pre><code>Fenced code block\n'
            '</code></pre>'
        )

    def testSafeFence(self):
        """ Test Fenced Code with safe_mode. """
        text = '~~~\nCode\n~~~'
        self.md.safeMode = 'replace'
        self.assertEqual(
            self.md.convert(text),
            '<pre><code>Code\n'
            '</code></pre>'
        )

    def testNestedFence(self):
        """ Test nested fence. """

        text = '''
~~~~~~~~

~~~~
~~~~~~~~'''
        self.assertEqual(
            self.md.convert(text),
            '<pre><code>\n'
            '~~~~\n'
            '</code></pre>'
        )

    def testFencedLanguage(self):
        """ Test Language Tags. """

        text = '''
~~~~{.python}
# Some python code
~~~~'''
        self.assertEqual(
            self.md.convert(text),
            '<pre><code class="python"># Some python code\n'
            '</code></pre>'
        )

    def testFencedBackticks(self):
        """ Test Code Fenced with Backticks. """

        text = '''
`````
# Arbitrary code
~~~~~ # these tildes will not close the block
`````'''
        self.assertEqual(
            self.md.convert(text),
            '<pre><code># Arbitrary code\n'
            '~~~~~ # these tildes will not close the block\n'
            '</code></pre>'
        )

    def testFencedCodeWithHighlightLines(self):
        """ Test Fenced Code with Highlighted Lines. """

        text = '''
```hl_lines="1 3"
line 1
line 2
line 3
```'''
        md = markdown.Markdown(
            extensions=[
                markdown.extensions.codehilite.CodeHiliteExtension(linenums=None, guess_lang=False),
                'markdown.extensions.fenced_code'
            ]
        )

        if self.has_pygments:
            self.assertEqual(
                md.convert(text),
                '<div class="codehilite"><pre>'
                '<span class="hll">line 1\n</span>'
                'line 2\n'
                '<span class="hll">line 3\n</span>'
                '</pre></div>'
            )
        else:
            self.assertEqual(
                md.convert(text),
                '<pre class="codehilite"><code>line 1\n'
                'line 2\n'
                'line 3</code></pre>'
            )

    def testFencedLanguageAndHighlightLines(self):
        """ Test Fenced Code with Highlighted Lines. """

        text0 = '''
```.python hl_lines="1 3"
#line 1
#line 2
#line 3
```'''
        text1 = '''
~~~{.python hl_lines='1 3'}
#line 1
#line 2
#line 3
~~~'''
        for text in (text0, text1):
            md = markdown.Markdown(
                extensions=[
                    markdown.extensions.codehilite.CodeHiliteExtension(linenums=None, guess_lang=False),
                    'markdown.extensions.fenced_code'
                ]
            )
            if self.has_pygments:
                self.assertEqual(
                    md.convert(text),
                    '<div class="codehilite"><pre>'
                    '<span class="hll"><span class="c">#line 1</span>\n</span>'
                    '<span class="c">#line 2</span>\n'
                    '<span class="hll"><span class="c">#line 3</span>\n</span>'
                    '</pre></div>'
                )
            else:
                self.assertEqual(
                    md.convert(text),
                    '<pre class="codehilite"><code class="language-python">#line 1\n'
                    '#line 2\n'
                    '#line 3</code></pre>'
                )


class TestHeaderId(unittest.TestCase):
    """ Test HeaderId Extension. """

    def setUp(self):
        self.md = markdown.Markdown(extensions=['markdown.extensions.headerid'])

    def testBasicHeaderId(self):
        """ Test Basic HeaderID """

        text = "# Some Header #"
        self.assertEqual(
            self.md.convert(text),
            '<h1 id="some-header">Some Header</h1>'
        )

    def testUniqueFunc(self):
        """ Test 'unique' function. """
        from markdown.extensions.headerid import unique
        ids = set(['foo'])
        self.assertEqual(unique('foo', ids), 'foo_1')
        self.assertEqual(ids, set(['foo', 'foo_1']))

    def testUniqueIds(self):
        """ Test Unique IDs. """

        text = '#Header\n#Header\n#Header'
        self.assertEqual(
            self.md.convert(text),
            '<h1 id="header">Header</h1>\n'
            '<h1 id="header_1">Header</h1>\n'
            '<h1 id="header_2">Header</h1>'
        )

    def testBaseLevel(self):
        """ Test Header Base Level. """

        text = '#Some Header\n## Next Level'
        self.assertEqual(
            markdown.markdown(text, [markdown.extensions.headerid.HeaderIdExtension(level=3)]),
            '<h3 id="some-header">Some Header</h3>\n'
            '<h4 id="next-level">Next Level</h4>'
        )

    def testHeaderInlineMarkup(self):
        """ Test Header IDs with inline markup. """

        text = '#Some *Header* with [markup](http://example.com).'
        self.assertEqual(
            self.md.convert(text),
            '<h1 id="some-header-with-markup">Some <em>Header</em> with '
            '<a href="http://example.com">markup</a>.</h1>'
        )

    def testHtmlEntities(self):
        """ Test HeaderIDs with HTML Entities. """
        text = '# Foo &amp; bar'
        self.assertEqual(
            self.md.convert(text),
            '<h1 id="foo-bar">Foo &amp; bar</h1>'
        )

    def testRawHtml(self):
        """ Test HeaderIDs with raw HTML. """
        text = '# Foo <b>Bar</b> Baz.'
        self.assertEqual(
            self.md.convert(text),
            '<h1 id="foo-bar-baz">Foo <b>Bar</b> Baz.</h1>'
        )

    def testNoAutoIds(self):
        """ Test HeaderIDs with no auto generated IDs. """

        text = '# Some Header\n# Another Header'
        self.assertEqual(
            markdown.markdown(text, [markdown.extensions.headerid.HeaderIdExtension(forceid=False)]),
            '<h1>Some Header</h1>\n'
            '<h1>Another Header</h1>'
        )

    def testHeaderIdWithMetaData(self):
        """ Test Header IDs with MetaData extension. """

        text = '''header_level: 2
header_forceid: Off

# A Header'''
        self.assertEqual(
            markdown.markdown(text, ['markdown.extensions.headerid', 'markdown.extensions.meta']),
            '<h2>A Header</h2>'
        )

    def testHeaderIdWithAttr_List(self):
        """ Test HeaderIDs with Attr_List extension. """

        text = '# Header1 {: #foo }\n# Header2 {: .bar }'
        self.assertEqual(
            markdown.markdown(text, ['markdown.extensions.headerid', 'markdown.extensions.attr_list']),
            '<h1 id="foo">Header1</h1>\n'
            '<h1 class="bar" id="header2">Header2</h1>'
        )
        # Switch order extensions are loaded - should be no change in behavior.
        self.assertEqual(
            markdown.markdown(text, ['markdown.extensions.attr_list', 'markdown.extensions.headerid']),
            '<h1 id="foo">Header1</h1>\n'
            '<h1 class="bar" id="header2">Header2</h1>'
        )


class TestMetaData(unittest.TestCase):
    """ Test MetaData extension. """

    def setUp(self):
        self.md = markdown.Markdown(extensions=['markdown.extensions.meta'])

    def testBasicMetaData(self):
        """ Test basic metadata. """

        text = '''Title: A Test Doc.
Author: Waylan Limberg
        John Doe
Blank_Data:

The body. This is paragraph one.'''
        self.assertEqual(
            self.md.convert(text),
            '<p>The body. This is paragraph one.</p>'
        )
        self.assertEqual(
            self.md.Meta, {
                'author': ['Waylan Limberg', 'John Doe'],
                'blank_data': [''],
                'title': ['A Test Doc.']
            }
        )

    def testYamlMetaData(self):
        """ Test metadata specified as simple YAML. """

        text = '''---
Title: A Test Doc.
Author: [Waylan Limberg, John Doe]
Blank_Data:
---

The body. This is paragraph one.'''
        self.assertEqual(
            self.md.convert(text),
            '<p>The body. This is paragraph one.</p>'
        )
        self.assertEqual(
            self.md.Meta, {
                'author': ['[Waylan Limberg, John Doe]'],
                'blank_data': [''],
                'title': ['A Test Doc.']
            }
        )

    def testMissingMetaData(self):
        """ Test document without Meta Data. """

        text = '    Some Code - not extra lines of meta data.'
        self.assertEqual(
            self.md.convert(text),
            '<pre><code>Some Code - not extra lines of meta data.\n'
            '</code></pre>'
        )
        self.assertEqual(self.md.Meta, {})

    def testMetaDataWithoutNewline(self):
        """ Test doocument with only metadata and no newline at end."""
        text = 'title: No newline'
        self.assertEqual(self.md.convert(text), '')
        self.assertEqual(self.md.Meta, {'title': ['No newline']})

    def testYamlObjectMetaData(self):
        """ Test metadata specified as a complex YAML object. """
        md = markdown.Markdown(extensions=[markdown.extensions.meta.MetaExtension(yaml=True)])
        text = '''---
Author: John Doe
Date: 2014-11-29 14:15:16
Integer: 0x16
---

Some content.'''
        self.assertEqual(md.convert(text), '<p>Some content.</p>')
        self.assertEqual(
            md.Meta, {
                'Author': 'John Doe',
                'Date': datetime.datetime(2014, 11, 29, 14, 15, 16),
                'Integer': 22
            }
        )


class TestWikiLinks(unittest.TestCase):
    """ Test Wikilinks Extension. """

    def setUp(self):
        self.md = markdown.Markdown(extensions=['markdown.extensions.wikilinks'])
        self.text = "Some text with a [[WikiLink]]."

    def testBasicWikilinks(self):
        """ Test [[wikilinks]]. """

        self.assertEqual(
            self.md.convert(self.text),
            '<p>Some text with a '
            '<a class="wikilink" href="/WikiLink/">WikiLink</a>.</p>'
        )

    def testWikilinkWhitespace(self):
        """ Test whitespace in wikilinks. """
        self.assertEqual(
            self.md.convert('[[ foo bar_baz ]]'),
            '<p><a class="wikilink" href="/foo_bar_baz/">foo bar_baz</a></p>'
        )
        self.assertEqual(
            self.md.convert('foo [[ ]] bar'),
            '<p>foo  bar</p>'
        )

    def testSimpleSettings(self):
        """ Test Simple Settings. """

        self.assertEqual(markdown.markdown(
            self.text, [
                markdown.extensions.wikilinks.WikiLinkExtension(
                    base_url='/wiki/',
                    end_url='.html',
                    html_class='foo')
                ]
            ),
            '<p>Some text with a '
            '<a class="foo" href="/wiki/WikiLink.html">WikiLink</a>.</p>')

    def testComplexSettings(self):
        """ Test Complex Settings. """

        md = markdown.Markdown(
            extensions=['markdown.extensions.wikilinks'],
            extension_configs={
                'markdown.extensions.wikilinks': [
                    ('base_url', 'http://example.com/'),
                    ('end_url', '.html'),
                    ('html_class', '')
                ]
            },
            safe_mode=True
        )
        self.assertEqual(
            md.convert(self.text),
            '<p>Some text with a '
            '<a href="http://example.com/WikiLink.html">WikiLink</a>.</p>'
        )

    def testWikilinksMetaData(self):
        """ test MetaData with Wikilinks Extension. """

        text = """wiki_base_url: http://example.com/
wiki_end_url:   .html
wiki_html_class:

Some text with a [[WikiLink]]."""
        md = markdown.Markdown(extensions=['markdown.extensions.meta', 'markdown.extensions.wikilinks'])
        self.assertEqual(
            md.convert(text),
            '<p>Some text with a '
            '<a href="http://example.com/WikiLink.html">WikiLink</a>.</p>'
        )

        # MetaData should not carry over to next document:
        self.assertEqual(
            md.convert("No [[MetaData]] here."),
            '<p>No <a class="wikilink" href="/MetaData/">MetaData</a> '
            'here.</p>'
        )

    def testURLCallback(self):
        """ Test used of a custom URL builder. """

        from markdown.extensions.wikilinks import WikiLinkExtension

        def my_url_builder(label, base, end):
            return '/bar/'

        md = markdown.Markdown(extensions=[WikiLinkExtension(build_url=my_url_builder)])
        self.assertEqual(
            md.convert('[[foo]]'),
            '<p><a class="wikilink" href="/bar/">foo</a></p>'
        )


class TestAdmonition(unittest.TestCase):
    """ Test Admonition Extension. """

    def setUp(self):
        self.md = markdown.Markdown(extensions=['markdown.extensions.admonition'])

    def testRE(self):
        RE = self.md.parser.blockprocessors['admonition'].RE
        tests = [
            ('!!! note', ('note', None)),
            ('!!! note "Please Note"', ('note', 'Please Note')),
            ('!!! note ""', ('note', '')),
        ]
        for test, expected in tests:
            self.assertEqual(RE.match(test).groups(), expected)


class TestTOC(unittest.TestCase):
    """ Test TOC Extension. """

    def setUp(self):
        self.md = markdown.Markdown(extensions=['markdown.extensions.toc'])

    def testMarker(self):
        """ Test TOC with a Marker. """
        text = '[TOC]\n\n# Header 1\n\n## Header 2'
        self.assertEqual(
            self.md.convert(text),
            '<div class="toc">\n'
              '<ul>\n'                                             # noqa
                '<li><a href="#header-1">Header 1</a>'             # noqa
                  '<ul>\n'                                         # noqa
                    '<li><a href="#header-2">Header 2</a></li>\n'  # noqa
                  '</ul>\n'                                        # noqa
                '</li>\n'                                          # noqa
              '</ul>\n'                                            # noqa
            '</div>\n'
            '<h1 id="header-1">Header 1</h1>\n'
            '<h2 id="header-2">Header 2</h2>'
        )

    def testNoMarker(self):
        """ Test TOC without a Marker. """
        text = '# Header 1\n\n## Header 2'
        self.assertEqual(
            self.md.convert(text),
            '<h1 id="header-1">Header 1</h1>\n'
            '<h2 id="header-2">Header 2</h2>'
        )
        self.assertEqual(
            self.md.toc,
            '<div class="toc">\n'
              '<ul>\n'                                             # noqa
                '<li><a href="#header-1">Header 1</a>'             # noqa
                  '<ul>\n'                                         # noqa
                    '<li><a href="#header-2">Header 2</a></li>\n'  # noqa
                  '</ul>\n'                                        # noqa
                '</li>\n'                                          # noqa
              '</ul>\n'                                            # noqa
            '</div>\n'
        )


class TestSmarty(unittest.TestCase):
    def setUp(self):
        config = {
            'markdown.extensions.smarty': [
                ('smart_angled_quotes', True),
                ('substitutions', {
                    'ndash': '\u2013',
                    'mdash': '\u2014',
                    'ellipsis': '\u2026',
                    'left-single-quote': '&sbquo;',  # sb is not a typo!
                    'right-single-quote': '&lsquo;',
                    'left-double-quote': '&bdquo;',
                    'right-double-quote': '&ldquo;',
                    'left-angle-quote': '[',
                    'right-angle-quote': ']',
                }),
            ]
        }
        self.md = markdown.Markdown(
            extensions=['markdown.extensions.smarty'],
            extension_configs=config
        )

    def testCustomSubstitutions(self):
        text = """<< The "Unicode char of the year 2014"
is the 'mdash': ---
Must not be confused with 'ndash'  (--) ... >>
"""
        correct = """<p>[ The &bdquo;Unicode char of the year 2014&ldquo;
is the &sbquo;mdash&lsquo;: \u2014
Must not be confused with &sbquo;ndash&lsquo;  (\u2013) \u2026 ]</p>"""
        self.assertEqual(self.md.convert(text), correct)