问题描述
我正在使用鼻子测试工具来声明python unittest :
I am using nosetest tools for asserting a python unittest:
...
from nose.tools import assert_equals, assert_almost_equal
class TestPolycircles(unittest.TestCase):
def setUp(self):
self.latitude = 32.074322
self.longitude = 34.792081
self.radius_meters = 100
self.number_of_vertices = 36
self.vertices = polycircles.circle(latitude=self.latitude,
longitude=self.longitude,
radius=self.radius_meters,
number_of_vertices=self.number_of_vertices)
def test_number_of_vertices(self):
"""Asserts that the number of vertices in the approximation polygon
matches the input."""
assert_equals(len(self.vertices), self.number_of_vertices)
...
当我运行 python setup.py test 时，我会收到弃用警告:
When I run python setup.py test, I get a deprecation warning:
...
Asserts that the number of vertices in the approximation polygon ...
/Users/adamatan/personal/polycircles/polycircles/test/test_polycircles.py:22:
DeprecationWarning: Please use assertEqual instead.
assert_equals(len(self.vertices), self.number_of_vertices)
ok
...
我在鼻子工具中找不到任何 assertEqual .该警告来自何处，我该如何解决?
I could not find any assertEqual in nose tools. Where is this warning coming from, and how can I fix it?
推荐答案
nose.tools assert _ * 函数只是自动创建的PEP8 别名用于 TestCase 方法，因此 assert_equals 与 TestCase.assertEquals()相同.
The nose.tools assert_* functions are just automatically created PEP8 aliases for the TestCase methods, so assert_equals is the same as TestCase.assertEquals().
但是，后者只是 TestCase.assertEqual()的别名(请注意:没有结尾的 s ).该警告旨在告诉您，您需要使用 TestCase.assertEquals()代替 TestCase.assertEquals()作为别名已弃用.
However, the latter was only ever an alias for TestCase.assertEqual() (note: no trailing s). The warning is meant to tell you that instead of TestCase.assertEquals() you need to use TestCase.assertEqual() as the alias has been deprecated.
对于使用 assert_equal 转换为(没有尾随 s )的 nose.tools :
For nose.tools that translates into using assert_equal (no trailing s):
from nose.tools import assert_equal, assert_almost_equal
def test_number_of_vertices(self):
"""Asserts that the number of vertices in the approximation polygon
matches the input."""
assert_equal(len(self.vertices), self.number_of_vertices)
如果您使用过 assert_almost_equals (带有尾随的 s )，您也会看到类似的警告，也要使用 assertAlmostEqual .
Had you used assert_almost_equals (with trailing s), you'd have seen a similar warning to use assertAlmostEqual, as well.
这篇关于Python 3.3:使用nase.tools.assert_equals时的DeprecationWarning的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！