# Copyright 2016 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import unittest
from blinkpy.common.html_diff import HtmlDiffGenerator, html_diff
class TestHtmlDiff(unittest.TestCase):
def test_html_diff(self):
self.assertEqual(
html_diff('one\ntoo\nthree\n', 'one\ntwo\nthree\n'),
('<html>\n'
'<head>\n'
'<style>\n'
'table { white-space: pre-wrap; font-family: monospace; border-collapse: collapse; }\n'
'th { color: #444; background: #eed; text-align: right; vertical-align: baseline; padding: 1px 4px 1px 4px; }\n'
'.del { background: #faa; }\n'
'.add { background: #afa; }\n'
'</style>\n'
'</head>\n'
'<body><table>'
'<tr><th>1<th>1<td>one\n</tr>'
'<tr><th>2<th><td class="del">too\n</tr>'
'<tr><th><th>2<td class="add">two\n</tr>'
'<tr><th>3<th>3<td>three\n</tr>'
'</table></body>\n'
'</html>\n'))
def test_html_diff_same(self):
self.assertEqual(
HtmlDiffGenerator().generate_tbody(['one line\n'], ['one line\n']),
'<tr><th>1<th>1<td>one line\n</tr>')
self.assertEqual(
HtmlDiffGenerator().generate_tbody(['<script>\n'], ['<script>\n']),
'<tr><th>1<th>1<td><script>\n</tr>')
def test_html_diff_delete(self):
self.assertEqual(
HtmlDiffGenerator().generate_tbody(['one line\n'], []),
'<tr><th>1<th><td class="del">one line\n</tr>')
self.assertEqual(HtmlDiffGenerator().generate_tbody(['</pre>\n'], []),
'<tr><th>1<th><td class="del"></pre>\n</tr>')
def test_html_diff_insert(self):
self.assertEqual(
HtmlDiffGenerator().generate_tbody([], ['one line\n']),
'<tr><th><th>1<td class="add">one line\n</tr>')
self.assertEqual(HtmlDiffGenerator().generate_tbody([], ['<!--\n']),
'<tr><th><th>1<td class="add"><!--\n</tr>')
def test_html_diff_ending_newline(self):
self.assertEqual(
HtmlDiffGenerator().generate_tbody(['one line'], ['one line\n']),
'<tr><th>1<th><td class="del">one line</tr><tr><th><th>1<td class="add">one line\n</tr>'
)
def test_html_diff_replace_multiple_lines(self):
a_lines = [
'1. Beautiful is better than ugly.\n',
'2. Explicit is better than implicit.\n',
'3. Simple is better than complex.\n',
'4. Complex is better than complicated.\n',
]
b_lines = [
'1. Beautiful is better than ugly.\n',
'3. Simple is better than complex.\n',
'4. Complicated is better than complex.\n',
'5. Flat is better than nested.\n',
]
self.assertEqual(HtmlDiffGenerator().generate_tbody(
a_lines, b_lines
), ('<tr><th>1<th>1<td>1. Beautiful is better than ugly.\n</tr>'
'<tr><th>2<th><td class="del">2. Explicit is better than implicit.\n</tr>'
'<tr><th>3<th><td class="del">3. Simple is better than complex.\n</tr>'
'<tr><th>4<th><td class="del">4. Complex is better than complicated.\n</tr>'
'<tr><th><th>2<td class="add">3. Simple is better than complex.\n</tr>'
'<tr><th><th>3<td class="add">4. Complicated is better than complex.\n</tr>'
'<tr><th><th>4<td class="add">5. Flat is better than nested.\n</tr>'
))
def test_html_diff_context(self):
a_lines = [
'line1\n',
'line2\n',
'line3\n',
'line4\n',
'line5\n',
'line6\n',
'line7\n',
'line8\n',
'line9a\n',
'line10\n',
'line11\n',
'line12\n',
'line13\n',
'line14\n',
'line15a\n',
'line16\n',
'line17\n',
'line18\n',
'line19\n',
'line20\n',
'line21\n',
'line22\n',
'line23\n',
]
b_lines = [
'line1\n',
'line2\n',
'line3\n',
'line4\n',
'line5\n',
'line6\n',
'line7\n',
'line8\n',
'line9b\n',
'line10\n',
'line11\n',
'line12\n',
'line13\n',
'line14\n',
'line15b\n',
'line16\n',
'line17\n',
'line18\n',
'line19\n',
'line20\n',
'line21\n',
'line22\n',
'line23\n',
]
self.assertEqual(HtmlDiffGenerator().generate_tbody(a_lines, b_lines),
('<tr><td colspan=3>\n\n</tr>'
'<tr><th>6<th>6<td>line6\n</tr>'
'<tr><th>7<th>7<td>line7\n</tr>'
'<tr><th>8<th>8<td>line8\n</tr>'
'<tr><th>9<th><td class="del">line9a\n</tr>'
'<tr><th><th>9<td class="add">line9b\n</tr>'
'<tr><th>10<th>10<td>line10\n</tr>'
'<tr><th>11<th>11<td>line11\n</tr>'
'<tr><th>12<th>12<td>line12\n</tr>'
'<tr><th>13<th>13<td>line13\n</tr>'
'<tr><th>14<th>14<td>line14\n</tr>'
'<tr><th>15<th><td class="del">line15a\n</tr>'
'<tr><th><th>15<td class="add">line15b\n</tr>'
'<tr><th>16<th>16<td>line16\n</tr>'
'<tr><th>17<th>17<td>line17\n</tr>'
'<tr><th>18<th>18<td>line18\n</tr>'
'<tr><td colspan=3>\n\n</tr>'))
def test_html_diff_context_at_edge(self):
a_lines = [
'line1\n',
'line2\n',
'line3\n',
'line4\n',
'line5\n',
'line6\n',
'line7\n',
'line8\n',
]
b_lines = [
'line0\n',
'line1\n',
'line2\n',
'line3\n',
'line4\n',
'line5\n',
'line6\n',
'line7\n',
'line8\n',
'line9\n',
]
self.assertEqual(HtmlDiffGenerator().generate_tbody(a_lines, b_lines),
('<tr><th><th>1<td class="add">line0\n</tr>'
'<tr><th>1<th>2<td>line1\n</tr>'
'<tr><th>2<th>3<td>line2\n</tr>'
'<tr><th>3<th>4<td>line3\n</tr>'
'<tr><td colspan=3>\n\n</tr>'
'<tr><th>6<th>7<td>line6\n</tr>'
'<tr><th>7<th>8<td>line7\n</tr>'
'<tr><th>8<th>9<td>line8\n</tr>'
'<tr><th><th>10<td class="add">line9\n</tr>'))
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