[yt-dev] Issue #1224: test_grid_arrays_view fails on Windows (yt_analysis/yt)

[John ZuHone]

New issue 1224: test_grid_arrays_view fails on Windows
https://bitbucket.org/yt_analysis/yt/issues/1224/test_grid_arrays_view-fails-on-windows

John ZuHone:

It looks like the type conversion in `grid_container.pyx` is failing here, but I haven't the foggiest idea why:

```pycon
======================================================================
FAIL: yt.geometry.tests.test_grid_container.test_grid_arrays_view(array([[  0.00000000e+000,   0.00000000e+000,   0.00000000e+000],
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\nose\case.py", line 198, in runTest
    self.test(*self.arg)
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\numpy\testing\utils.py", line 296, in assert_equal
    return assert_array_equal(actual, desired, err_msg, verbose)
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\numpy\testing\utils.py", line 787, in assert_array_equal
    verbose=verbose, header='Arrays are not equal')
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\numpy\testing\utils.py", line 713, in assert_array_compare
    raise AssertionError(msg)
AssertionError:
Arrays are not equal

(mismatch 77.77777777777777%)
 x: array([[  0.000000e+000,   0.000000e+000,   0.000000e+000],
       [  2.121996e-314,   4.940656e-324,   2.500000e-001],
       [  3.125000e-002,   3.125000e-002,   4.243992e-314],...
 y: YTArray([[ 0.    ,  0.    ,  0.    ],
       [ 0.25  ,  0.25  ,  0.25  ],
       [ 0.25  ,  0.25  ,  0.375 ],...

======================================================================
FAIL: yt.geometry.tests.test_grid_container.test_grid_arrays_view(array([[  1.00000000e+000,   1.00000000e+000,   1.00000000e+000],
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\nose\case.py", line 198, in runTest
    self.test(*self.arg)
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\numpy\testing\utils.py", line 296, in assert_equal
    return assert_array_equal(actual, desired, err_msg, verbose)
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\numpy\testing\utils.py", line 787, in assert_array_equal
    verbose=verbose, header='Arrays are not equal')
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\numpy\testing\utils.py", line 713, in assert_array_compare
    raise AssertionError(msg)
AssertionError:
Arrays are not equal

(mismatch 77.77777777777777%)
 x: array([[  1.000000e+000,   1.000000e+000,   1.000000e+000],
       [  2.500000e-001,   2.500000e-001,   7.500000e-001],
       [  9.881313e-324,   2.500000e-001,   2.500000e-001],...
 y: YTArray([[ 1.    ,  1.    ,  1.    ],
       [ 0.75  ,  0.75  ,  0.75  ],
       [ 0.5   ,  0.5   ,  0.625 ],...

======================================================================
FAIL: yt.geometry.tests.test_grid_container.test_grid_arrays_view(array([[          0,           0,           0],
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\nose\case.py", line 198, in runTest
    self.test(*self.arg)
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\numpy\testing\utils.py", line 296, in assert_equal
    return assert_array_equal(actual, desired, err_msg, verbose)
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\numpy\testing\utils.py", line 787, in assert_array_equal
    verbose=verbose, header='Arrays are not equal')
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\numpy\testing\utils.py", line 713, in assert_array_compare
    raise AssertionError(msg)
AssertionError:
Arrays are not equal

(mismatch 100.0%)
 x: array([[          0,           0,           0],
       [-1247088400,         396,           8],
       [          0,  1071644672,           0],...
 y: array([[16, 16, 16],
       [16, 16, 16],
       [16, 16, 16],...

======================================================================
FAIL: yt.geometry.tests.test_grid_container.test_grid_arrays_view(array([         0, 1068498944,          0,          0,          0,
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\nose\case.py", line 198, in runTest
    self.test(*self.arg)
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\numpy\testing\utils.py", line 296, in assert_equal
    return assert_array_equal(actual, desired, err_msg, verbose)
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\numpy\testing\utils.py", line 787, in assert_array_equal
    verbose=verbose, header='Arrays are not equal')
  File "C:\Users\jzuho\Miniconda3\lib\site-packages\numpy\testing\utils.py", line 713, in assert_array_compare
    raise AssertionError(msg)
AssertionError:
Arrays are not equal

(mismatch 83.33333333333333%)
 x: array([         0, 1068498944,          0,          0,          0,
       1071775744], dtype=int32)
 y: array([0, 1, 2, 2, 3, 3])
```

Responsible: MatthewTurk