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import unittest
from mistletoe import Document
from mistletoe.contrib.pygments_renderer import PygmentsRenderer
from parameterized import parameterized
from pygments.util import ClassNotFound
class TestPygmentsRenderer(unittest.TestCase):
@parameterized.expand([(True,), (False,)])
def test_render_no_language(self, fail_on_unsupported_language: bool):
renderer = PygmentsRenderer(fail_on_unsupported_language=fail_on_unsupported_language)
token = Document(['```\n', 'no language\n', '```\n'])
output = renderer.render(token)
expected = (
'<div class="highlight" style="background: #f8f8f8"><pre style="line-height: 125%;">'
'<span></span>no language\n</pre></div>\n\n'
)
self.assertEqual(output, expected)
def test_render_known_language(self):
renderer = PygmentsRenderer()
token = Document(['```python\n', '# python language\n', '```\n'])
output = renderer.render(token)
expected = (
'<div class="highlight" style="background: #f8f8f8"><pre style="line-height: 125%;">'
'<span></span><span style="color: #3D7B7B; font-style: italic"># python language</span>\n'
'</pre></div>\n\n'
)
self.assertEqual(output, expected)
def test_render_unknown_language(self):
renderer = PygmentsRenderer()
token = Document(['```foobar\n', 'unknown language\n', '```\n'])
output = renderer.render(token)
expected = (
'<div class="highlight" style="background: #f8f8f8"><pre style="line-height: 125%;">'
'<span></span>unknown language\n</pre></div>\n\n'
)
self.assertEqual(output, expected)
def test_render_fail_on_unsupported_language(self):
renderer = PygmentsRenderer(fail_on_unsupported_language=True)
token = Document(['```foobar\n', 'unknown language\n', '```\n'])
with self.assertRaises(ClassNotFound):
renderer.render(token)
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