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"""Test language selectors."""
from .. import util
class TestLang(util.TestCase):
"""Test language selectors."""
MARKUP = """
<div lang="de-DE">
<p id="1"></p>
</div>
<div lang="de-DE-1996">
<p id="2"></p>
</div>
<div lang="de-Latn-DE">
<p id="3"></p>
</div>
<div lang="de-Latf-DE">
<p id="4"></p>
</div>
<div lang="de-Latn-DE-1996">
<p id="5"></p>
</div>
<p id="6" lang="de-DE"></p>
<div lang="a-DE">
<p id="7"></p>
</div>
<!-- Singletons don't match implicit wildcards (* not at start are ignored and treated as implicit) -->
<div lang="a-a-DE">
<p id="8"></p>
</div>
<div lang="en-a-DE">
<p id="9"></p>
</div>
"""
def test_lang(self):
"""Test language and that it uses implicit wildcard."""
# Implicit wild
self.assert_selector(
self.MARKUP,
"p:lang(de-DE)",
['1', '2', '3', '4', '5', '6'],
flags=util.HTML
)
def test_lang_missing_range(self):
"""Test language range with a missing range."""
# Implicit wild
self.assert_selector(
self.MARKUP,
"p:lang(de--DE)",
[],
flags=util.HTML
)
def test_explicit_wildcard(self):
"""Test language with explicit wildcard (same as implicit)."""
# Explicit wild
self.assert_selector(
self.MARKUP,
"p:lang(de-\\*-DE)",
['1', '2', '3', '4', '5', '6'],
flags=util.HTML
)
def test_only_wildcard(self):
"""Test language with only a wildcard."""
self.assert_selector(
self.MARKUP,
"p:lang('*')",
['1', '2', '3', '4', '5', '6', '7', '8', '9'],
flags=util.HTML
)
def test_wildcard_start_no_match(self):
"""Test language with a wildcard at start, but it matches nothing."""
self.assert_selector(
self.MARKUP,
"p:lang('*-de-DE')",
[],
flags=util.HTML
)
def test_wildcard_start_collapse(self):
"""Test that language with multiple wildcard patterns at start collapse."""
self.assert_selector(
self.MARKUP,
"p:lang('*-*-*-DE')",
['1', '2', '3', '4', '5', '6', '7'],
flags=util.HTML
)
def test_wildcard_at_start_escaped(self):
"""
Test language with wildcard at start (escaped).
Wildcard in the middle is same as implicit, but at the start, it has specific meaning.
"""
self.assert_selector(
self.MARKUP,
"p:lang(\\*-DE)",
['1', '2', '3', '4', '5', '6', '7'],
flags=util.HTML
)
def test_language_quoted(self):
"""Test language (quoted)."""
# Normal quoted
self.assert_selector(
self.MARKUP,
"p:lang('de-DE')",
['1', '2', '3', '4', '5', '6'],
flags=util.HTML
)
def test_language_quoted_with_escaped_newline(self):
"""Test language (quoted) with escaped new line."""
# Normal quoted
self.assert_selector(
self.MARKUP,
"p:lang('de-\\\nDE')",
['1', '2', '3', '4', '5', '6'],
flags=util.HTML
)
def test_wildcard_at_start_quoted(self):
"""Test language with wildcard at start (quoted)."""
# First wild quoted
self.assert_selector(
self.MARKUP,
"p:lang('*-DE')",
['1', '2', '3', '4', '5', '6', '7'],
flags=util.HTML
)
def test_avoid_implicit_language(self):
"""Test that we can narrow language selection to elements that match and explicitly state language."""
# Target element with language and language attribute
self.assert_selector(
self.MARKUP,
"p[lang]:lang(de-DE)",
['6'],
flags=util.HTML
)
def test_language_und(self):
"""Test that undefined language can be matched by `*`."""
markup = """
<div id="1" lang=""></div>
<div id="2" lang="und"></div>
<div id="3" lang=>
<div id="4"></div>
</div>
<div id="5"></div>
"""
self.assert_selector(
markup,
"div:lang('*')",
['2'],
flags=util.HTML
)
def test_language_empty_string(self):
"""Test that an empty string language will only match untagged languages `lang=""`."""
markup = """
<div id="1" lang=""></div>
<div id="2" lang="und"></div>
<div id="3" lang=>
<div id="4"></div>
</div>
<div id="5"></div>
"""
self.assert_selector(
markup,
"div:lang('')",
['1', '3', '4'],
flags=util.HTML
)
def test_language_list(self):
"""Test language list."""
# Multiple languages
markup = """
<div lang="de-DE">
<p id="1"></p>
</div>
<div lang="en">
<p id="2"></p>
</div>
<div lang="de-Latn-DE">
<p id="3"></p>
</div>
<div lang="de-Latf-DE">
<p id="4"></p>
</div>
<div lang="en-US">
<p id="5"></p>
</div>
<p id="6" lang="de-DE"></p>
"""
self.assert_selector(
markup,
"p:lang(de-DE, '*-US')",
['1', '3', '4', '5', '6'],
flags=util.HTML
)
def test_undetermined_language(self):
"""Test undetermined language."""
markup = """
<div>
<p id="1"></p>
</div>
"""
self.assert_selector(
markup,
"p:lang(en)",
[],
flags=util.HTML
)
def test_language_in_header(self):
"""Test that we can find language in header."""
markup = """
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-language" content="en-US">
</head>
<body>
<div>
<p id="1"></p>
</div>
<div>
<p id="2"></p>
</div>
</body>
"""
self.assert_selector(
markup,
"p:lang('*-US')",
['1', '2'],
flags=util.HTML
)
def test_xml_style_language_in_html5(self):
"""Test XML style language when out of HTML5 namespace."""
markup = """
<math xml:lang="en">
<mtext id="1"></mtext>
</math>
<div xml:lang="en">
<mtext id="2"></mtext>
</div>
"""
self.assert_selector(
markup,
"mtext:lang(en)",
['1'],
flags=util.HTML5
)
def test_xml_style_language(self):
"""Test XML style language."""
# XML style language
markup = """
<?xml version="1.0" encoding="UTF-8"?>
<html>
<head>
</head>
<body>
<div xml:lang="de-DE">
<p id="1"></p>
</div>
<div xml:lang="de-DE-1996">
<p id="2"></p>
</div>
<div xml:lang="de-Latn-DE">
<p id="3"></p>
</div>
<div xml:lang="de-Latf-DE">
<p id="4"></p>
</div>
<div xml:lang="de-Latn-DE-1996">
<p id="5"></p>
</div>
<p id="6" xml:lang="de-DE"></p>
</body>
</html>
"""
self.assert_selector(
markup,
"p:lang(de-DE)",
['1', '2', '3', '4', '5', '6'],
flags=util.XML
)
def test_language_in_xhtml(self):
"""Test language in XHTML."""
markup = """
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
</head>
<body>
<div lang="de-DE" xml:lang="de-DE">
<p id="1"></p>
</div>
<div lang="de-DE-1996" xml:lang="de-DE-1996">
<p id="2"></p>
</div>
<div lang="de-Latn-DE" xml:lang="de-Latn-DE">
<p id="3"></p>
</div>
<div lang="de-Latf-DE" xml:lang="de-Latf-DE">
<p id="4"></p>
</div>
<div lang="de-Latn-DE-1996" xml:lang="de-Latn-DE-1996">
<p id="5"></p>
</div>
<p id="6" lang="de-DE" xml:lang="de-DE"></p>
</body>
</html>
"""
self.assert_selector(
markup,
"p:lang(de-DE)",
['1', '2', '3', '4', '5', '6'],
flags=util.XML
)
def test_language_in_xhtml_without_html_style_lang(self):
"""
Test language in XHTML.
HTML namespace elements must use HTML style language.
"""
# XHTML language: `lang`
markup = """
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
</head>
<body>
<div xml:lang="de-DE">
<p id="1"></p>
</div>
<div xml:lang="de-DE-1996">
<p id="2"></p>
</div>
<div xml:lang="de-Latn-DE">
<p id="3"></p>
</div>
<div xml:lang="de-Latf-DE">
<p id="4"></p>
</div>
<div xml:lang="de-Latn-DE-1996">
<p id="5"></p>
</div>
<p id="6" xml:lang="de-DE"></p>
</body>
</html>
"""
self.assert_selector(
markup,
"p:lang(de-DE)",
[],
flags=util.XHTML
)
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