Rex*_*exE 6 python django assert
在Django shell中:
from django.test import SimpleTestCase
c = SimpleTestCase()
haystack = '<html><b>contribution</b></html>'
c.assertInHTML('<b>contribution</b>', haystack)
c.assertInHTML('contribution', haystack)
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我不明白为什么第一个断言通过,但第二个断言不通过:
AssertionError Traceback (most recent call last)
<ipython-input-15-20da22474686> in <module>()
5
6 c.assertInHTML('<b>contribution</b>', haystack)
----> 7 c.assertInHTML('contribution', haystack)
c:\...\lib\site-packages\django\test\testcases.py in assertInHTML(self, needle, haystack, count, msg_prefix)
680 else:
681 self.assertTrue(real_count != 0,
--> 682 msg_prefix + "Couldn't find '%s' in response" % needle)
683
684 def assertJSONEqual(self, raw, expected_data, msg=None):
C:\...\Programs\Python\Python35-32\lib\unittest\case.py in assertTrue(self, expr, msg)
675 if not expr:
676 msg = self._formatMessage(msg, "%s is not true" % safe_repr(expr))
--> 677 raise self.failureException(msg)
678
679 def _formatMessage(self, msg, standardMsg):
AssertionError: False is not true : Couldn't find 'contribution' in response
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Django 文档只是说"传入的参数必须是有效的HTML".我不认为这是问题,因为assert_and_parse_html第一行的调用不会引发:
def assertInHTML(self, needle, haystack, count=None, msg_prefix=''):
needle = assert_and_parse_html(self, needle, None,
'First argument is not valid HTML:')
haystack = assert_and_parse_html(self, haystack, None,
'Second argument is not valid HTML:')
real_count = haystack.count(needle)
if count is not None:
self.assertEqual(real_count, count,
msg_prefix + "Found %d instances of '%s' in response"
" (expected %d)" % (real_count, needle, count))
else:
self.assertTrue(real_count != 0,
msg_prefix + "Couldn't find '%s' in response" % needle)
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我正在使用Python 3.5.1和Django 1.8.8.
assertInHTML(needle, haystack)具有以下行为
assertInHTML('<p>a</p>', '<div><p>a</p><p>b</p></div>')通过:明确正确
assertInHTML('<p>a</p><p>b</p>', '<p>a</p><p>b</p>')通过:可能正确
assertInHTML('<p>a</p><p>b</p>', '<div><p>a</p><p>b</p></div>')因断言错误而失败。
当针头没有包裹其他所有东西的唯一根元素时,就会出现问题。
该建议修复(!这已经是昨日黄花了一段时间)是,如果你尝试这样做是为了引发异常-即针必须有一个HTML标记,包装里面的一切它。
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