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Add test_em_dash() to WrapTestCase to make sure that TextWrapper handles 

em-dashes -- like this -- properly.  (Also--like this.  Although this
usage may be incompatible with fixing bug #596434; we shall see.)
This commit is contained in:
Greg Ward 2002-08-22 19:47:27 +00:00
parent 32c2ae7f4a
commit 9ad15a3dff
1 changed files with 53 additions and 2 deletions
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55
Lib/test/test_textwrap.py
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@ -30,8 +30,8 @@ class BaseTestCase(unittest.TestCase):
def check(self, result, expect):
self.assertEquals(result, expect,
'Expected:\n%s\nbut got:\n%s' % (
self.show(result), self.show(expect)))
'expected:\n%s\nbut got:\n%s' % (
self.show(expect), self.show(result)))
def check_wrap (self, text, width, expect):
result = wrap(text, width)
@ -111,6 +111,57 @@ What a mess!
["this-is-a-useful-feature-for-reformatting-",
"posts-from-tim-peters'ly"])
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!"
result = self.wrapper._split(text)
expect = ["Here's", " ", "an", " ", "--", " ", "em-", "dash", " ",
"and", "--", "here's", " ", "another", "---",
"and", " ", "another!"]
self.assertEquals(result, expect,
"\nexpected %r\n"
"but got %r" % (expect, result))
def test_split(self):
'''Ensure that the standard _split() method works as advertised