ENH: testing: add SkipTest and KnownFailureException

* use SkipTest in numpy tests instead of importing it from nose
* add a KnownFailureException as an alias for KnownFailureTest
  (the former is preferred, but the latter is kept for backcompat)
* rename the KnownFailure nose plugin into KnownFailurePlugin,
  and keep the old name for backcompat

2 files changed, 4 insertions, 7 deletions

diff --git a/numpy/lib/tests/test__datasource.py b/numpy/lib/tests/test__datasource.py
index 090f71f67..f4bece352 100644
--- a/numpy/lib/tests/test__datasource.py
+++ b/numpy/lib/tests/test__datasource.py
@@ -7,7 +7,7 @@ from shutil import rmtree
 
 from numpy.compat import asbytes
 from numpy.testing import (
-    run_module_suite, TestCase, assert_
+    run_module_suite, TestCase, assert_, SkipTest
     )
 import numpy.lib._datasource as datasource
 
@@ -137,8 +137,7 @@ class TestDataSourceOpen(TestCase):
             import gzip
         except ImportError:
             # We don't have the gzip capabilities to test.
-            import nose
-            raise nose.SkipTest
+            raise SkipTest
         # Test datasource's internal file_opener for Gzip files.
         filepath = os.path.join(self.tmpdir, 'foobar.txt.gz')
         fp = gzip.open(filepath, 'w')
@@ -154,8 +153,7 @@ class TestDataSourceOpen(TestCase):
             import bz2
         except ImportError:
             # We don't have the bz2 capabilities to test.
-            import nose
-            raise nose.SkipTest
+            raise SkipTest
         # Test datasource's internal file_opener for BZip2 files.
         filepath = os.path.join(self.tmpdir, 'foobar.txt.bz2')
         fp = bz2.BZ2File(filepath, 'w')
diff --git a/numpy/lib/tests/test_format.py b/numpy/lib/tests/test_format.py
index 4f8a65148..1bf65fa61 100644
--- a/numpy/lib/tests/test_format.py
+++ b/numpy/lib/tests/test_format.py
@@ -287,7 +287,7 @@ import numpy as np
 from numpy.compat import asbytes, asbytes_nested, sixu
 from numpy.testing import (
     run_module_suite, assert_, assert_array_equal, assert_raises, raises,
-    dec
+    dec, SkipTest
     )
 from numpy.lib import format
 
@@ -812,7 +812,6 @@ def test_bad_header():
 
 
 def test_large_file_support():
-    from nose import SkipTest
     if (sys.platform == 'win32' or sys.platform == 'cygwin'):
         raise SkipTest("Unknown if Windows has sparse filesystems")
     # try creating a large sparse file