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Diffstat (limited to 'lib/python2.7/test/test_textwrap.py')
| -rw-r--r-- | lib/python2.7/test/test_textwrap.py | 658 |
1 files changed, 0 insertions, 658 deletions
diff --git a/lib/python2.7/test/test_textwrap.py b/lib/python2.7/test/test_textwrap.py deleted file mode 100644 index 7b72672..0000000 --- a/lib/python2.7/test/test_textwrap.py +++ /dev/null @@ -1,658 +0,0 @@ -# -# Test suite for the textwrap module. -# -# Original tests written by Greg Ward <gward@python.net>. -# Converted to PyUnit by Peter Hansen <peter@engcorp.com>. -# Currently maintained by Greg Ward. -# -# $Id$ -# - -import unittest -from test import test_support - -from textwrap import TextWrapper, wrap, fill, dedent - - -class BaseTestCase(unittest.TestCase): - '''Parent class with utility methods for textwrap tests.''' - - def show(self, textin): - if isinstance(textin, list): - result = [] - for i in range(len(textin)): - result.append(" %d: %r" % (i, textin[i])) - result = '\n'.join(result) - elif isinstance(textin, basestring): - result = " %s\n" % repr(textin) - return result - - - def check(self, result, expect): - self.assertEqual(result, expect, - 'expected:\n%s\nbut got:\n%s' % ( - self.show(expect), self.show(result))) - - def check_wrap(self, text, width, expect, **kwargs): - result = wrap(text, width, **kwargs) - self.check(result, expect) - - def check_split(self, text, expect): - result = self.wrapper._split(text) - self.assertEqual(result, expect, - "\nexpected %r\n" - "but got %r" % (expect, result)) - - -class WrapTestCase(BaseTestCase): - - def setUp(self): - self.wrapper = TextWrapper(width=45) - - def test_simple(self): - # Simple case: just words, spaces, and a bit of punctuation - - text = "Hello there, how are you this fine day? I'm glad to hear it!" - - self.check_wrap(text, 12, - ["Hello there,", - "how are you", - "this fine", - "day? I'm", - "glad to hear", - "it!"]) - self.check_wrap(text, 42, - ["Hello there, how are you this fine day?", - "I'm glad to hear it!"]) - self.check_wrap(text, 80, [text]) - - def test_empty_string(self): - # Check that wrapping the empty string returns an empty list. - self.check_wrap("", 6, []) - self.check_wrap("", 6, [], drop_whitespace=False) - - def test_empty_string_with_initial_indent(self): - # Check that the empty string is not indented. - self.check_wrap("", 6, [], initial_indent="++") - self.check_wrap("", 6, [], initial_indent="++", drop_whitespace=False) - - def test_whitespace(self): - # Whitespace munging and end-of-sentence detection - - text = """\ -This is a paragraph that already has -line breaks. But some of its lines are much longer than the others, -so it needs to be wrapped. -Some lines are \ttabbed too. -What a mess! -""" - - expect = ["This is a paragraph that already has line", - "breaks. But some of its lines are much", - "longer than the others, so it needs to be", - "wrapped. Some lines are tabbed too. What a", - "mess!"] - - wrapper = TextWrapper(45, fix_sentence_endings=True) - result = wrapper.wrap(text) - self.check(result, expect) - - result = wrapper.fill(text) - self.check(result, '\n'.join(expect)) - - def test_fix_sentence_endings(self): - wrapper = TextWrapper(60, fix_sentence_endings=True) - - # SF #847346: ensure that fix_sentence_endings=True does the - # right thing even on input short enough that it doesn't need to - # be wrapped. - text = "A short line. Note the single space." - expect = ["A short line. Note the single space."] - self.check(wrapper.wrap(text), expect) - - # Test some of the hairy end cases that _fix_sentence_endings() - # is supposed to handle (the easy stuff is tested in - # test_whitespace() above). - text = "Well, Doctor? What do you think?" - expect = ["Well, Doctor? What do you think?"] - self.check(wrapper.wrap(text), expect) - - text = "Well, Doctor?\nWhat do you think?" - self.check(wrapper.wrap(text), expect) - - text = 'I say, chaps! Anyone for "tennis?"\nHmmph!' - expect = ['I say, chaps! Anyone for "tennis?" Hmmph!'] - self.check(wrapper.wrap(text), expect) - - wrapper.width = 20 - expect = ['I say, chaps!', 'Anyone for "tennis?"', 'Hmmph!'] - self.check(wrapper.wrap(text), expect) - - text = 'And she said, "Go to hell!"\nCan you believe that?' - expect = ['And she said, "Go to', - 'hell!" Can you', - 'believe that?'] - self.check(wrapper.wrap(text), expect) - - wrapper.width = 60 - expect = ['And she said, "Go to hell!" Can you believe that?'] - self.check(wrapper.wrap(text), expect) - - text = 'File stdio.h is nice.' - expect = ['File stdio.h is nice.'] - self.check(wrapper.wrap(text), expect) - - def test_wrap_short(self): - # Wrapping to make short lines longer - - text = "This is a\nshort paragraph." - - self.check_wrap(text, 20, ["This is a short", - "paragraph."]) - self.check_wrap(text, 40, ["This is a short paragraph."]) - - - def test_wrap_short_1line(self): - # Test endcases - - text = "This is a short line." - - self.check_wrap(text, 30, ["This is a short line."]) - self.check_wrap(text, 30, ["(1) This is a short line."], - initial_indent="(1) ") - - - def test_hyphenated(self): - # Test breaking hyphenated words - - text = ("this-is-a-useful-feature-for-" - "reformatting-posts-from-tim-peters'ly") - - self.check_wrap(text, 40, - ["this-is-a-useful-feature-for-", - "reformatting-posts-from-tim-peters'ly"]) - self.check_wrap(text, 41, - ["this-is-a-useful-feature-for-", - "reformatting-posts-from-tim-peters'ly"]) - self.check_wrap(text, 42, - ["this-is-a-useful-feature-for-reformatting-", - "posts-from-tim-peters'ly"]) - - def test_hyphenated_numbers(self): - # Test that hyphenated numbers (eg. dates) are not broken like words. - text = ("Python 1.0.0 was released on 1994-01-26. Python 1.0.1 was\n" - "released on 1994-02-15.") - - self.check_wrap(text, 35, ['Python 1.0.0 was released on', - '1994-01-26. Python 1.0.1 was', - 'released on 1994-02-15.']) - self.check_wrap(text, 40, ['Python 1.0.0 was released on 1994-01-26.', - 'Python 1.0.1 was released on 1994-02-15.']) - - text = "I do all my shopping at 7-11." - self.check_wrap(text, 25, ["I do all my shopping at", - "7-11."]) - self.check_wrap(text, 27, ["I do all my shopping at", - "7-11."]) - self.check_wrap(text, 29, ["I do all my shopping at 7-11."]) - - def test_em_dash(self): - # Test text with em-dashes - text = "Em-dashes should be written -- thus." - self.check_wrap(text, 25, - ["Em-dashes should be", - "written -- thus."]) - - # Probe the boundaries of the properly written em-dash, - # ie. " -- ". - self.check_wrap(text, 29, - ["Em-dashes should be written", - "-- thus."]) - expect = ["Em-dashes should be written --", - "thus."] - self.check_wrap(text, 30, expect) - self.check_wrap(text, 35, expect) - self.check_wrap(text, 36, - ["Em-dashes should be written -- thus."]) - - # The improperly written em-dash is handled too, because - # it's adjacent to non-whitespace on both sides. - text = "You can also do--this or even---this." - expect = ["You can also do", - "--this or even", - "---this."] - self.check_wrap(text, 15, expect) - self.check_wrap(text, 16, expect) - expect = ["You can also do--", - "this or even---", - "this."] - self.check_wrap(text, 17, expect) - self.check_wrap(text, 19, expect) - expect = ["You can also do--this or even", - "---this."] - self.check_wrap(text, 29, expect) - self.check_wrap(text, 31, expect) - expect = ["You can also do--this or even---", - "this."] - self.check_wrap(text, 32, expect) - self.check_wrap(text, 35, expect) - - # All of the above behaviour could be deduced by probing the - # _split() method. - text = "Here's an -- em-dash and--here's another---and another!" - expect = ["Here's", " ", "an", " ", "--", " ", "em-", "dash", " ", - "and", "--", "here's", " ", "another", "---", - "and", " ", "another!"] - self.check_split(text, expect) - - text = "and then--bam!--he was gone" - expect = ["and", " ", "then", "--", "bam!", "--", - "he", " ", "was", " ", "gone"] - self.check_split(text, expect) - - - def test_unix_options (self): - # Test that Unix-style command-line options are wrapped correctly. - # Both Optik (OptionParser) and Docutils rely on this behaviour! - - text = "You should use the -n option, or --dry-run in its long form." - self.check_wrap(text, 20, - ["You should use the", - "-n option, or --dry-", - "run in its long", - "form."]) - self.check_wrap(text, 21, - ["You should use the -n", - "option, or --dry-run", - "in its long form."]) - expect = ["You should use the -n option, or", - "--dry-run in its long form."] - self.check_wrap(text, 32, expect) - self.check_wrap(text, 34, expect) - self.check_wrap(text, 35, expect) - self.check_wrap(text, 38, expect) - expect = ["You should use the -n option, or --dry-", - "run in its long form."] - self.check_wrap(text, 39, expect) - self.check_wrap(text, 41, expect) - expect = ["You should use the -n option, or --dry-run", - "in its long form."] - self.check_wrap(text, 42, expect) - - # Again, all of the above can be deduced from _split(). - text = "the -n option, or --dry-run or --dryrun" - expect = ["the", " ", "-n", " ", "option,", " ", "or", " ", - "--dry-", "run", " ", "or", " ", "--dryrun"] - self.check_split(text, expect) - - def test_funky_hyphens (self): - # Screwy edge cases cooked up by David Goodger. All reported - # in SF bug #596434. - self.check_split("what the--hey!", ["what", " ", "the", "--", "hey!"]) - self.check_split("what the--", ["what", " ", "the--"]) - self.check_split("what the--.", ["what", " ", "the--."]) - self.check_split("--text--.", ["--text--."]) - - # When I first read bug #596434, this is what I thought David - # was talking about. I was wrong; these have always worked - # fine. The real problem is tested in test_funky_parens() - # below... - self.check_split("--option", ["--option"]) - self.check_split("--option-opt", ["--option-", "opt"]) - self.check_split("foo --option-opt bar", - ["foo", " ", "--option-", "opt", " ", "bar"]) - - def test_punct_hyphens(self): - # Oh bother, SF #965425 found another problem with hyphens -- - # hyphenated words in single quotes weren't handled correctly. - # In fact, the bug is that *any* punctuation around a hyphenated - # word was handled incorrectly, except for a leading "--", which - # was special-cased for Optik and Docutils. So test a variety - # of styles of punctuation around a hyphenated word. - # (Actually this is based on an Optik bug report, #813077). - self.check_split("the 'wibble-wobble' widget", - ['the', ' ', "'wibble-", "wobble'", ' ', 'widget']) - self.check_split('the "wibble-wobble" widget', - ['the', ' ', '"wibble-', 'wobble"', ' ', 'widget']) - self.check_split("the (wibble-wobble) widget", - ['the', ' ', "(wibble-", "wobble)", ' ', 'widget']) - self.check_split("the ['wibble-wobble'] widget", - ['the', ' ', "['wibble-", "wobble']", ' ', 'widget']) - - def test_funky_parens (self): - # Second part of SF bug #596434: long option strings inside - # parentheses. - self.check_split("foo (--option) bar", - ["foo", " ", "(--option)", " ", "bar"]) - - # Related stuff -- make sure parens work in simpler contexts. - self.check_split("foo (bar) baz", - ["foo", " ", "(bar)", " ", "baz"]) - self.check_split("blah (ding dong), wubba", - ["blah", " ", "(ding", " ", "dong),", - " ", "wubba"]) - - def test_drop_whitespace_false(self): - # Check that drop_whitespace=False preserves whitespace. - # SF patch #1581073 - text = " This is a sentence with much whitespace." - self.check_wrap(text, 10, - [" This is a", " ", "sentence ", - "with ", "much white", "space."], - drop_whitespace=False) - - def test_drop_whitespace_false_whitespace_only(self): - # Check that drop_whitespace=False preserves a whitespace-only string. - self.check_wrap(" ", 6, [" "], drop_whitespace=False) - - def test_drop_whitespace_false_whitespace_only_with_indent(self): - # Check that a whitespace-only string gets indented (when - # drop_whitespace is False). - self.check_wrap(" ", 6, [" "], drop_whitespace=False, - initial_indent=" ") - - def test_drop_whitespace_whitespace_only(self): - # Check drop_whitespace on a whitespace-only string. - self.check_wrap(" ", 6, []) - - def test_drop_whitespace_leading_whitespace(self): - # Check that drop_whitespace does not drop leading whitespace (if - # followed by non-whitespace). - # SF bug #622849 reported inconsistent handling of leading - # whitespace; let's test that a bit, shall we? - text = " This is a sentence with leading whitespace." - self.check_wrap(text, 50, - [" This is a sentence with leading whitespace."]) - self.check_wrap(text, 30, - [" This is a sentence with", "leading whitespace."]) - - def test_drop_whitespace_whitespace_line(self): - # Check that drop_whitespace skips the whole line if a non-leading - # line consists only of whitespace. - text = "abcd efgh" - # Include the result for drop_whitespace=False for comparison. - self.check_wrap(text, 6, ["abcd", " ", "efgh"], - drop_whitespace=False) - self.check_wrap(text, 6, ["abcd", "efgh"]) - - def test_drop_whitespace_whitespace_only_with_indent(self): - # Check that initial_indent is not applied to a whitespace-only - # string. This checks a special case of the fact that dropping - # whitespace occurs before indenting. - self.check_wrap(" ", 6, [], initial_indent="++") - - def test_drop_whitespace_whitespace_indent(self): - # Check that drop_whitespace does not drop whitespace indents. - # This checks a special case of the fact that dropping whitespace - # occurs before indenting. - self.check_wrap("abcd efgh", 6, [" abcd", " efgh"], - initial_indent=" ", subsequent_indent=" ") - - if test_support.have_unicode: - def test_unicode(self): - # *Very* simple test of wrapping Unicode strings. I'm sure - # there's more to it than this, but let's at least make - # sure textwrap doesn't crash on Unicode input! - text = u"Hello there, how are you today?" - self.check_wrap(text, 50, [u"Hello there, how are you today?"]) - self.check_wrap(text, 20, [u"Hello there, how are", "you today?"]) - olines = self.wrapper.wrap(text) - self.assertIsInstance(olines, list) - self.assertIsInstance(olines[0], unicode) - otext = self.wrapper.fill(text) - self.assertIsInstance(otext, unicode) - - def test_no_split_at_umlaut(self): - text = u"Die Empf\xe4nger-Auswahl" - self.check_wrap(text, 13, [u"Die", u"Empf\xe4nger-", u"Auswahl"]) - - def test_umlaut_followed_by_dash(self): - text = u"aa \xe4\xe4-\xe4\xe4" - self.check_wrap(text, 7, [u"aa \xe4\xe4-", u"\xe4\xe4"]) - - def test_split(self): - # Ensure that the standard _split() method works as advertised - # in the comments - - text = "Hello there -- you goof-ball, use the -b option!" - - result = self.wrapper._split(text) - self.check(result, - ["Hello", " ", "there", " ", "--", " ", "you", " ", "goof-", - "ball,", " ", "use", " ", "the", " ", "-b", " ", "option!"]) - - def test_break_on_hyphens(self): - # Ensure that the break_on_hyphens attributes work - text = "yaba daba-doo" - self.check_wrap(text, 10, ["yaba daba-", "doo"], - break_on_hyphens=True) - self.check_wrap(text, 10, ["yaba", "daba-doo"], - break_on_hyphens=False) - - def test_bad_width(self): - # Ensure that width <= 0 is caught. - text = "Whatever, it doesn't matter." - self.assertRaises(ValueError, wrap, text, 0) - self.assertRaises(ValueError, wrap, text, -1) - - -class LongWordTestCase (BaseTestCase): - def setUp(self): - self.wrapper = TextWrapper() - self.text = '''\ -Did you say "supercalifragilisticexpialidocious?" -How *do* you spell that odd word, anyways? -''' - - def test_break_long(self): - # Wrap text with long words and lots of punctuation - - self.check_wrap(self.text, 30, - ['Did you say "supercalifragilis', - 'ticexpialidocious?" How *do*', - 'you spell that odd word,', - 'anyways?']) - self.check_wrap(self.text, 50, - ['Did you say "supercalifragilisticexpialidocious?"', - 'How *do* you spell that odd word, anyways?']) - - # SF bug 797650. Prevent an infinite loop by making sure that at - # least one character gets split off on every pass. - self.check_wrap('-'*10+'hello', 10, - ['----------', - ' h', - ' e', - ' l', - ' l', - ' o'], - subsequent_indent = ' '*15) - - # bug 1146. Prevent a long word to be wrongly wrapped when the - # preceding word is exactly one character shorter than the width - self.check_wrap(self.text, 12, - ['Did you say ', - '"supercalifr', - 'agilisticexp', - 'ialidocious?', - '" How *do*', - 'you spell', - 'that odd', - 'word,', - 'anyways?']) - - def test_nobreak_long(self): - # Test with break_long_words disabled - self.wrapper.break_long_words = 0 - self.wrapper.width = 30 - expect = ['Did you say', - '"supercalifragilisticexpialidocious?"', - 'How *do* you spell that odd', - 'word, anyways?' - ] - result = self.wrapper.wrap(self.text) - self.check(result, expect) - - # Same thing with kwargs passed to standalone wrap() function. - result = wrap(self.text, width=30, break_long_words=0) - self.check(result, expect) - - -class IndentTestCases(BaseTestCase): - - # called before each test method - def setUp(self): - self.text = '''\ -This paragraph will be filled, first without any indentation, -and then with some (including a hanging indent).''' - - - def test_fill(self): - # Test the fill() method - - expect = '''\ -This paragraph will be filled, first -without any indentation, and then with -some (including a hanging indent).''' - - result = fill(self.text, 40) - self.check(result, expect) - - - def test_initial_indent(self): - # Test initial_indent parameter - - expect = [" This paragraph will be filled,", - "first without any indentation, and then", - "with some (including a hanging indent)."] - result = wrap(self.text, 40, initial_indent=" ") - self.check(result, expect) - - expect = "\n".join(expect) - result = fill(self.text, 40, initial_indent=" ") - self.check(result, expect) - - - def test_subsequent_indent(self): - # Test subsequent_indent parameter - - expect = '''\ - * This paragraph will be filled, first - without any indentation, and then - with some (including a hanging - indent).''' - - result = fill(self.text, 40, - initial_indent=" * ", subsequent_indent=" ") - self.check(result, expect) - - -# Despite the similar names, DedentTestCase is *not* the inverse -# of IndentTestCase! -class DedentTestCase(unittest.TestCase): - - def assertUnchanged(self, text): - """assert that dedent() has no effect on 'text'""" - self.assertEqual(text, dedent(text)) - - def test_dedent_nomargin(self): - # No lines indented. - text = "Hello there.\nHow are you?\nOh good, I'm glad." - self.assertUnchanged(text) - - # Similar, with a blank line. - text = "Hello there.\n\nBoo!" - self.assertUnchanged(text) - - # Some lines indented, but overall margin is still zero. - text = "Hello there.\n This is indented." - self.assertUnchanged(text) - - # Again, add a blank line. - text = "Hello there.\n\n Boo!\n" - self.assertUnchanged(text) - - def test_dedent_even(self): - # All lines indented by two spaces. - text = " Hello there.\n How are ya?\n Oh good." - expect = "Hello there.\nHow are ya?\nOh good." - self.assertEqual(expect, dedent(text)) - - # Same, with blank lines. - text = " Hello there.\n\n How are ya?\n Oh good.\n" - expect = "Hello there.\n\nHow are ya?\nOh good.\n" - self.assertEqual(expect, dedent(text)) - - # Now indent one of the blank lines. - text = " Hello there.\n \n How are ya?\n Oh good.\n" - expect = "Hello there.\n\nHow are ya?\nOh good.\n" - self.assertEqual(expect, dedent(text)) - - def test_dedent_uneven(self): - # Lines indented unevenly. - text = '''\ - def foo(): - while 1: - return foo - ''' - expect = '''\ -def foo(): - while 1: - return foo -''' - self.assertEqual(expect, dedent(text)) - - # Uneven indentation with a blank line. - text = " Foo\n Bar\n\n Baz\n" - expect = "Foo\n Bar\n\n Baz\n" - self.assertEqual(expect, dedent(text)) - - # Uneven indentation with a whitespace-only line. - text = " Foo\n Bar\n \n Baz\n" - expect = "Foo\n Bar\n\n Baz\n" - self.assertEqual(expect, dedent(text)) - - # dedent() should not mangle internal tabs - def test_dedent_preserve_internal_tabs(self): - text = " hello\tthere\n how are\tyou?" - expect = "hello\tthere\nhow are\tyou?" - self.assertEqual(expect, dedent(text)) - - # make sure that it preserves tabs when it's not making any - # changes at all - self.assertEqual(expect, dedent(expect)) - - # dedent() should not mangle tabs in the margin (i.e. - # tabs and spaces both count as margin, but are *not* - # considered equivalent) - def test_dedent_preserve_margin_tabs(self): - text = " hello there\n\thow are you?" - self.assertUnchanged(text) - - # same effect even if we have 8 spaces - text = " hello there\n\thow are you?" - self.assertUnchanged(text) - - # dedent() only removes whitespace that can be uniformly removed! - text = "\thello there\n\thow are you?" - expect = "hello there\nhow are you?" - self.assertEqual(expect, dedent(text)) - - text = " \thello there\n \thow are you?" - self.assertEqual(expect, dedent(text)) - - text = " \t hello there\n \t how are you?" - self.assertEqual(expect, dedent(text)) - - text = " \thello there\n \t how are you?" - expect = "hello there\n how are you?" - self.assertEqual(expect, dedent(text)) - - -def test_main(): - test_support.run_unittest(WrapTestCase, - LongWordTestCase, - IndentTestCases, - DedentTestCase) - -if __name__ == '__main__': - test_main() |