zulip/tools/tests/test_pretty_print.py

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import unittest
from tools.lib.pretty_print import pretty_print_html
from tools.lib.template_parser import validate
# Note that GOOD_HTML isn't necessarily beautiful HTML. Apart
# from adjusting indentation, we mostly leave things alone to
# respect whatever line-wrapping styles were in place before.
BAD_HTML = """
<!-- test -->
<!DOCTYPE html>
<html>
<!-- test -->
<head>
<title>Test</title>
<meta charset="utf-8" />
<link rel="stylesheet" href="style.css" />
</head>
<body>
<div><p>Hello<br />world!</p></div>
<p>Goodbye<!-- test -->world!</p>
<table>
<tr>
<td>5</td>
</tr>
</table>
<pre>
print 'hello world'
</pre>
<div class = "foo"
id = "bar"
role = "whatever">{{ bla }}
</div>
</body>
</html>
<!-- test -->
"""
GOOD_HTML = """
<!-- test -->
<!DOCTYPE html>
<html>
<!-- test -->
<head>
<title>Test</title>
<meta charset="utf-8" />
<link rel="stylesheet" href="style.css" />
</head>
<body>
<div><p>Hello<br />world!</p></div>
<p>Goodbye<!-- test -->world!</p>
<table>
<tr>
<td>5</td>
</tr>
</table>
<pre>
print 'hello world'
</pre>
<div class = "foo"
id = "bar"
role = "whatever">{{ bla }}
</div>
</body>
</html>
<!-- test -->
"""
BAD_HTML1 = """
<html>
<body>
foobarfoobarfoo<b>bar</b>
</body>
</html>
"""
GOOD_HTML1 = """
<html>
<body>
foobarfoobarfoo<b>bar</b>
</body>
</html>
"""
BAD_HTML2 = """
<html>
<body>
{{# foobar area}}
foobarfoobarfoo<b>bar</b>
{{/ foobar}}
</body>
</html>
"""
GOOD_HTML2 = """
<html>
<body>
{{# foobar area}}
foobarfoobarfoo<b>bar</b>
{{/ foobar}}
</body>
</html>
"""
# The old GOOD_HTML3 test was flawed.
BAD_HTML4 = """
<div>
foo
<p>hello</p>
bar
</div>
"""
GOOD_HTML4 = """
<div>
foo
<p>hello</p>
bar
</div>
"""
BAD_HTML5 = """
<div>
foo
{{#if foobar}}
hello
{{else}}
bye
{{/if}}
bar
</div>
"""
GOOD_HTML5 = """
<div>
foo
{{#if foobar}}
hello
{{else}}
bye
{{/if}}
bar
</div>
"""
BAD_HTML6 = """
<div>
<p> <strong> <span class = "whatever">foobar </span> </strong></p>
</div>
"""
GOOD_HTML6 = """
<div>
<p> <strong> <span class = "whatever">foobar </span> </strong></p>
</div>
"""
BAD_HTML7 = """
<div class="foobar">
<input type="foobar" name="temp" value="{{dyn_name}}"
{{#unless invite_only}}checked="checked"{{/unless}} /> {{dyn_name}}
{{#if invite_only}}<i class="fa fa-lock"></i>{{/if}}
</div>
"""
GOOD_HTML7 = """
<div class="foobar">
<input type="foobar" name="temp" value="{{dyn_name}}"
{{#unless invite_only}}checked="checked"{{/unless}} /> {{dyn_name}}
{{#if invite_only}}<i class="fa fa-lock"></i>{{/if}}
</div>
"""
BAD_HTML8 = """
{{#each test}}
{{#with this}}
{{#if foobar}}
<div class="anything">{{{test}}}</div>
{{/if}}
{{#if foobar2}}
{{> teststuff}}
{{/if}}
{{/with}}
{{/each}}
"""
GOOD_HTML8 = """
{{#each test}}
{{#with this}}
{{#if foobar}}
<div class="anything">{{{test}}}</div>
{{/if}}
{{#if foobar2}}
{{> teststuff}}
{{/if}}
{{/with}}
{{/each}}
"""
BAD_HTML9 = """
<form id="foobar" class="whatever">
{{! <div class="anothertest"> }}
<input value="test" />
<button type="button"><i class="test"></i></button>
<button type="button"><i class="test"></i></button>
{{! </div> }}
<div class="test"></div>
</form>
"""
GOOD_HTML9 = """
<form id="foobar" class="whatever">
{{! <div class="anothertest"> }}
<input value="test" />
<button type="button"><i class="test"></i></button>
<button type="button"><i class="test"></i></button>
{{! </div> }}
<div class="test"></div>
</form>
"""
BAD_HTML10 = """
{% block portico_content %}
<div class="test">
<i class='test'></i> foobar
</div>
<div class="test1">
{% for row in data %}
<div class="test2">
{% for group in (row[0:2], row[2:4]) %}
<div class="test2">
</div>
{% endfor %}
</div>
{% endfor %}
</div>
{% endblock %}
"""
GOOD_HTML10 = """
{% block portico_content %}
<div class="test">
<i class='test'></i> foobar
</div>
<div class="test1">
{% for row in data %}
<div class="test2">
{% for group in (row[0:2], row[2:4]) %}
<div class="test2">
</div>
{% endfor %}
</div>
{% endfor %}
</div>
{% endblock %}
"""
BAD_HTML11 = """
<div class="test1">
<div class="test2">
foobar
<div class="test2">
</div>
</div>
</div>
"""
GOOD_HTML11 = """
<div class="test1">
<div class="test2">
foobar
<div class="test2">
</div>
</div>
</div>
"""
def pretty_print(html: str) -> str:
tokens = validate(fn=None, text=html)
return pretty_print_html(html, tokens)
class TestPrettyPrinter(unittest.TestCase):
def compare(self, a: str, b: str) -> None:
self.assertEqual(a.split("\n"), b.split("\n"))
def test_pretty_print(self) -> None:
self.compare(pretty_print(GOOD_HTML), GOOD_HTML)
self.compare(pretty_print(BAD_HTML), GOOD_HTML)
self.compare(pretty_print(BAD_HTML1), GOOD_HTML1)
self.compare(pretty_print(BAD_HTML2), GOOD_HTML2)
self.compare(pretty_print(BAD_HTML4), GOOD_HTML4)
self.compare(pretty_print(BAD_HTML5), GOOD_HTML5)
self.compare(pretty_print(BAD_HTML6), GOOD_HTML6)
self.compare(pretty_print(BAD_HTML7), GOOD_HTML7)
self.compare(pretty_print(BAD_HTML8), GOOD_HTML8)
self.compare(pretty_print(BAD_HTML9), GOOD_HTML9)
self.compare(pretty_print(BAD_HTML10), GOOD_HTML10)
self.compare(pretty_print(BAD_HTML11), GOOD_HTML11)