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49fd7fa443
number of tests, all because of the codecs/_multibytecodecs issue described here (it's not a Py3K issue, just something Py3K discovers): http://mail.python.org/pipermail/python-dev/2006-April/064051.html Hye-Shik Chang promised to look for a fix, so no need to fix it here. The tests that are expected to break are: test_codecencodings_cn test_codecencodings_hk test_codecencodings_jp test_codecencodings_kr test_codecencodings_tw test_codecs test_multibytecodec This merge fixes an actual test failure (test_weakref) in this branch, though, so I believe merging is the right thing to do anyway.
161 lines
5.2 KiB
Python
161 lines
5.2 KiB
Python
import difflib
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from test.test_support import run_unittest, findfile
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import unittest
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import doctest
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import sys
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class TestSFbugs(unittest.TestCase):
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def test_ratio_for_null_seqn(self):
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# Check clearing of SF bug 763023
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s = difflib.SequenceMatcher(None, [], [])
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self.assertEqual(s.ratio(), 1)
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self.assertEqual(s.quick_ratio(), 1)
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self.assertEqual(s.real_quick_ratio(), 1)
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def test_comparing_empty_lists(self):
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# Check fix for bug #979794
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group_gen = difflib.SequenceMatcher(None, [], []).get_grouped_opcodes()
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self.assertRaises(StopIteration, group_gen.next)
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diff_gen = difflib.unified_diff([], [])
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self.assertRaises(StopIteration, diff_gen.next)
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patch914575_from1 = """
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1. Beautiful is beTTer than ugly.
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2. Explicit is better than implicit.
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3. Simple is better than complex.
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4. Complex is better than complicated.
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"""
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patch914575_to1 = """
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1. Beautiful is better than ugly.
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3. Simple is better than complex.
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4. Complicated is better than complex.
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5. Flat is better than nested.
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"""
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patch914575_from2 = """
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\t\tLine 1: preceeded by from:[tt] to:[ssss]
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\t\tLine 2: preceeded by from:[sstt] to:[sssst]
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\t \tLine 3: preceeded by from:[sstst] to:[ssssss]
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Line 4: \thas from:[sst] to:[sss] after :
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Line 5: has from:[t] to:[ss] at end\t
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"""
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patch914575_to2 = """
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Line 1: preceeded by from:[tt] to:[ssss]
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\tLine 2: preceeded by from:[sstt] to:[sssst]
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Line 3: preceeded by from:[sstst] to:[ssssss]
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Line 4: has from:[sst] to:[sss] after :
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Line 5: has from:[t] to:[ss] at end
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"""
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patch914575_from3 = """line 0
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1234567890123456789012345689012345
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line 1
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line 2
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line 3
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line 4 changed
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line 5 changed
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line 6 changed
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line 7
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line 8 subtracted
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line 9
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1234567890123456789012345689012345
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short line
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just fits in!!
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just fits in two lines yup!!
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the end"""
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patch914575_to3 = """line 0
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1234567890123456789012345689012345
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line 1
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line 2 added
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line 3
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line 4 chanGEd
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line 5a chanGed
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line 6a changEd
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line 7
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line 8
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line 9
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1234567890
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another long line that needs to be wrapped
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just fitS in!!
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just fits in two lineS yup!!
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the end"""
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class TestSFpatches(unittest.TestCase):
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def test_html_diff(self):
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# Check SF patch 914575 for generating HTML differences
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f1a = ((patch914575_from1 + '123\n'*10)*3)
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t1a = (patch914575_to1 + '123\n'*10)*3
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f1b = '456\n'*10 + f1a
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t1b = '456\n'*10 + t1a
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f1a = f1a.splitlines()
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t1a = t1a.splitlines()
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f1b = f1b.splitlines()
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t1b = t1b.splitlines()
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f2 = patch914575_from2.splitlines()
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t2 = patch914575_to2.splitlines()
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f3 = patch914575_from3
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t3 = patch914575_to3
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i = difflib.HtmlDiff()
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j = difflib.HtmlDiff(tabsize=2)
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k = difflib.HtmlDiff(wrapcolumn=14)
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full = i.make_file(f1a,t1a,'from','to',context=False,numlines=5)
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tables = '\n'.join(
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[
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'<h2>Context (first diff within numlines=5(default))</h2>',
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i.make_table(f1a,t1a,'from','to',context=True),
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'<h2>Context (first diff after numlines=5(default))</h2>',
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i.make_table(f1b,t1b,'from','to',context=True),
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'<h2>Context (numlines=6)</h2>',
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i.make_table(f1a,t1a,'from','to',context=True,numlines=6),
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'<h2>Context (numlines=0)</h2>',
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i.make_table(f1a,t1a,'from','to',context=True,numlines=0),
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'<h2>Same Context</h2>',
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i.make_table(f1a,f1a,'from','to',context=True),
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'<h2>Same Full</h2>',
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i.make_table(f1a,f1a,'from','to',context=False),
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'<h2>Empty Context</h2>',
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i.make_table([],[],'from','to',context=True),
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'<h2>Empty Full</h2>',
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i.make_table([],[],'from','to',context=False),
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'<h2>tabsize=2</h2>',
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j.make_table(f2,t2),
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'<h2>tabsize=default</h2>',
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i.make_table(f2,t2),
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'<h2>Context (wrapcolumn=14,numlines=0)</h2>',
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k.make_table(f3.splitlines(),t3.splitlines(),context=True,numlines=0),
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'<h2>wrapcolumn=14,splitlines()</h2>',
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k.make_table(f3.splitlines(),t3.splitlines()),
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'<h2>wrapcolumn=14,splitlines(True)</h2>',
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k.make_table(f3.splitlines(True),t3.splitlines(True)),
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])
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actual = full.replace('</body>','\n%s\n</body>' % tables)
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# temporarily uncomment next three lines to baseline this test
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#f = open('test_difflib_expect.html','w')
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#f.write(actual)
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#f.close()
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expect = open(findfile('test_difflib_expect.html')).read()
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self.assertEqual(actual,expect)
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def test_recursion_limit(self):
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# Check if the problem described in patch #1413711 exists.
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limit = sys.getrecursionlimit()
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old = [(i%2 and "K:%d" or "V:A:%d") % i for i in range(limit*2)]
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new = [(i%2 and "K:%d" or "V:B:%d") % i for i in range(limit*2)]
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difflib.SequenceMatcher(None, old, new).get_opcodes()
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def test_main():
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difflib.HtmlDiff._default_prefix = 0
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Doctests = doctest.DocTestSuite(difflib)
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run_unittest(TestSFpatches, TestSFbugs, Doctests)
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if __name__ == '__main__':
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test_main()
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