Python测试传递cmd并在VS2012上失败

时间：2014-10-29 17:00:48

标签： python visual-studio-2012 numpy nose ptvs

我在新机器（Windows 10）上设置Python（CPython 3.4,64位）。我安装了numpy＆amp;鼻子，并通过解释器提示运行numpy.test（）以确保一切正常工作：

Running unit tests for numpy
NumPy version 1.9.0
NumPy is installed in C:\Python34\lib\site-packages\numpy
Python version 3.4.2 (v3.4.2:ab2c023a9432, Oct  6 2014, 22:16:31) [MSC v.1600 64 bit (AMD64)]
nose version 1.3.4

----------------------------------------------------------------------
Ran 5162 tests in 36.783s

OK (KNOWNFAIL=10, SKIP=20)

到目前为止一切顺利，但是当我在VS2012上通过PTVS做同样的事情时（我的团队使用TFS进行源代码控制），有错误和测试失败（下面）：

Running unit tests for numpy
NumPy version 1.9.0
NumPy is installed in C:\Python34\lib\site-packages\numpy
Python version 3.4.2 (v3.4.2:ab2c023a9432, Oct  6 2014, 22:16:31) [MSC v.1600 64 bit (AMD64)]
nose version 1.3.4

======================================================================
ERROR: test_basic (test_multiarray.TestResize)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\numpy\core\tests\test_multiarray.py", line 2850, in test_basic
    x.resize((5, 5))
ValueError: cannot resize an array that references or is referenced
by another array in this way.  Use the resize function

======================================================================
ERROR: test_freeform_shape (test_multiarray.TestResize)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\numpy\core\tests\test_multiarray.py", line 2880, in test_freeform_shape
    x.resize(3, 2, 1)
ValueError: cannot resize an array that references or is referenced
by another array in this way.  Use the resize function

======================================================================
ERROR: test_int_shape (test_multiarray.TestResize)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\numpy\core\tests\test_multiarray.py", line 2862, in test_int_shape
    x.resize(3)
ValueError: cannot resize an array that references or is referenced
by another array in this way.  Use the resize function

======================================================================
ERROR: test_obj_obj (test_multiarray.TestResize)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\numpy\core\tests\test_multiarray.py", line 2892, in test_obj_obj
    a.resize(15,)
ValueError: cannot resize an array that references or is referenced
by another array in this way.  Use the resize function

======================================================================
ERROR: test_zeros_appended (test_multiarray.TestResize)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\numpy\core\tests\test_multiarray.py", line 2885, in test_zeros_appended
    x.resize(2, 3, 3)
ValueError: cannot resize an array that references or is referenced
by another array in this way.  Use the resize function

======================================================================
ERROR: Ticket #950
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\numpy\core\tests\test_regression.py", line 1272, in test_blasdot_uninitialized_memory
    x.resize((m, 0))
ValueError: cannot resize an array that references or is referenced
by another array in this way.  Use the resize function

======================================================================
FAIL: test_blasdot.test_dot_3args
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\nose\case.py", line 198, in runTest
    self.test(*self.arg)
  File "C:\Python34\lib\site-packages\numpy\core\tests\test_blasdot.py", line 54, in test_dot_3args
    assert_equal(sys.getrefcount(r), 2)
  File "C:\Python34\lib\site-packages\numpy\testing\utils.py", line 334, in assert_equal
    raise AssertionError(msg)
AssertionError:
Items are not equal:
 ACTUAL: 3
 DESIRED: 2

======================================================================
FAIL: test_1d (test_indexing.TestMultiIndexingAutomated)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\numpy\core\tests\test_indexing.py", line 940, in test_1d
    self._check_single_index(a, index)
  File "C:\Python34\lib\site-packages\numpy\core\tests\test_indexing.py", line 859, in _check_single_index
    self._compare_index_result(arr, index, mimic_get, no_copy)
  File "C:\Python34\lib\site-packages\numpy\core\tests\test_indexing.py", line 875, in _compare_index_result
    assert_equal(sys.getrefcount(arr), 3)
  File "C:\Python34\lib\site-packages\numpy\testing\utils.py", line 334, in assert_equal
    raise AssertionError(msg)
AssertionError:
Items are not equal:
 ACTUAL: 4
 DESIRED: 3

======================================================================
FAIL: test_multidim (test_indexing.TestMultiIndexingAutomated)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\numpy\core\tests\test_indexing.py", line 922, in test_multidim
    self._check_multi_index(self.a, index)
  File "C:\Python34\lib\site-packages\numpy\core\tests\test_indexing.py", line 836, in _check_multi_index
    self._compare_index_result(arr, index, mimic_get, no_copy)
  File "C:\Python34\lib\site-packages\numpy\core\tests\test_indexing.py", line 875, in _compare_index_result
    assert_equal(sys.getrefcount(arr), 3)
  File "C:\Python34\lib\site-packages\numpy\testing\utils.py", line 334, in assert_equal
    raise AssertionError(msg)
AssertionError:
Items are not equal:
 ACTUAL: 4
 DESIRED: 3

======================================================================
FAIL: test_dot_3args (test_multiarray.TestDot)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\numpy\core\tests\test_multiarray.py", line 3285, in test_dot_3args
    assert_equal(sys.getrefcount(r), 2)
  File "C:\Python34\lib\site-packages\numpy\testing\utils.py", line 334, in assert_equal
    raise AssertionError(msg)
AssertionError:
Items are not equal:
 ACTUAL: 3
 DESIRED: 2

----------------------------------------------------------------------
Ran 5162 tests in 181.506s

FAILED (KNOWNFAIL=10, SKIP=20, errors=6, failures=4)
Press any key to continue . . .

我运行了我在VS中通过命令行编写的脚本，结果与通过解释器直接运行测试的结果相同，所以我相信我的VS / Python设置中有些不对，而不是脚本本身。问题是什么？

1 个答案:

答案 0 :(得分：1)

您的设置没有任何问题。从某种意义上来说，numpy测试似乎是脆弱的，因为它们不能容忍调试器。我不确定那里发生了什么，但似乎涉及sys.getrefcount的测试，以及依赖于它的语义是特定的（通常只有一个数组的引用）是失败的。

您可以通过使用sys.settrace注册自己的跟踪功能直接运行解释器来重现此问题，例如：

import sys
def trace_func(f, e, a):
    return trace_func
sys.settrace(trace_func)

import numpy
numpy.test()

请注意，您可以从VS运行脚本而无需通过Debug调试它 - ＆gt;无需调试即可启动。这将为您提供与直接运行解释器相同的结果。

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