#16888: test_array now works with unittest test discovery. Patch by Zachary Ware.

Lib/test/test_array.py

@@ -31,7 +31,6 @@ class ArraySubclassWithKwargs(array.array):
     def __init__(self, typecode, newarg=None):
         array.array.__init__(self)
 
-tests = [] # list to accumulate all tests
 typecodes = "ubBhHiIlLfd"
 if have_long_long:
     typecodes += 'qQ'
@@ -44,7 +43,6 @@ def test_constructor(self):
         self.assertRaises(TypeError, array.array, 'xx')
         self.assertRaises(ValueError, array.array, 'x')
 
-tests.append(BadConstructorTest)
 
 # Machine format codes.
 #
@@ -174,10 +172,7 @@ def test_unicode(self):
                 msg="{0!r} != {1!r}; testcase={2!r}".format(a, b, testcase))
 
 
-tests.append(ArrayReconstructorTest)
+class BaseTest:
-
-
-class BaseTest(unittest.TestCase):
     # Required class attributes (provided by subclasses
     # typecode: the typecode to test
     # example: an initializer usable in the constructor for this type
@@ -1036,7 +1031,7 @@ def test_setitem(self):
         a = array.array(self.typecode, self.example)
         self.assertRaises(TypeError, a.__setitem__, 0, self.example[:2])
 
-class UnicodeTest(StringTest):
+class UnicodeTest(StringTest, unittest.TestCase):
     typecode = 'u'
     example = '\x01\u263a\x00\ufeff'
     smallerexample = '\x01\u263a\x00\ufefe'
@@ -1074,8 +1069,6 @@ def test_unicode(self):
 
         self.assertRaises(TypeError, a.fromunicode)
 
-tests.append(UnicodeTest)
-
 class NumberTest(BaseTest):
 
     def test_extslice(self):
@@ -1216,57 +1209,47 @@ def test_bytes_extend(self):
         )
 
 
-class ByteTest(SignedNumberTest):
+class ByteTest(SignedNumberTest, unittest.TestCase):
     typecode = 'b'
     minitemsize = 1
-tests.append(ByteTest)
 
-class UnsignedByteTest(UnsignedNumberTest):
+class UnsignedByteTest(UnsignedNumberTest, unittest.TestCase):
     typecode = 'B'
     minitemsize = 1
-tests.append(UnsignedByteTest)
 
-class ShortTest(SignedNumberTest):
+class ShortTest(SignedNumberTest, unittest.TestCase):
     typecode = 'h'
     minitemsize = 2
-tests.append(ShortTest)
 
-class UnsignedShortTest(UnsignedNumberTest):
+class UnsignedShortTest(UnsignedNumberTest, unittest.TestCase):
     typecode = 'H'
     minitemsize = 2
-tests.append(UnsignedShortTest)
 
-class IntTest(SignedNumberTest):
+class IntTest(SignedNumberTest, unittest.TestCase):
     typecode = 'i'
     minitemsize = 2
-tests.append(IntTest)
 
-class UnsignedIntTest(UnsignedNumberTest):
+class UnsignedIntTest(UnsignedNumberTest, unittest.TestCase):
     typecode = 'I'
     minitemsize = 2
-tests.append(UnsignedIntTest)
 
-class LongTest(SignedNumberTest):
+class LongTest(SignedNumberTest, unittest.TestCase):
     typecode = 'l'
     minitemsize = 4
-tests.append(LongTest)
 
-class UnsignedLongTest(UnsignedNumberTest):
+class UnsignedLongTest(UnsignedNumberTest, unittest.TestCase):
     typecode = 'L'
     minitemsize = 4
-tests.append(UnsignedLongTest)
 
 @unittest.skipIf(not have_long_long, 'need long long support')
-class LongLongTest(SignedNumberTest):
+class LongLongTest(SignedNumberTest, unittest.TestCase):
     typecode = 'q'
     minitemsize = 8
-tests.append(LongLongTest)
 
 @unittest.skipIf(not have_long_long, 'need long long support')
-class UnsignedLongLongTest(UnsignedNumberTest):
+class UnsignedLongLongTest(UnsignedNumberTest, unittest.TestCase):
     typecode = 'Q'
     minitemsize = 8
-tests.append(UnsignedLongLongTest)
 
 class FPTest(NumberTest):
     example = [-42.0, 0, 42, 1e5, -1e10]
@@ -1293,12 +1276,11 @@ def test_byteswap(self):
             b.byteswap()
             self.assertEqual(a, b)
 
-class FloatTest(FPTest):
+class FloatTest(FPTest, unittest.TestCase):
     typecode = 'f'
     minitemsize = 4
-tests.append(FloatTest)
 
-class DoubleTest(FPTest):
+class DoubleTest(FPTest, unittest.TestCase):
     typecode = 'd'
     minitemsize = 8
 
@@ -1319,22 +1301,6 @@ def test_alloc_overflow(self):
         else:
             self.fail("Array of size > maxsize created - MemoryError expected")
 
-tests.append(DoubleTest)
-
-def test_main(verbose=None):
-    import sys
-
-    support.run_unittest(*tests)
-
-    # verify reference counting
-    if verbose and hasattr(sys, "gettotalrefcount"):
-        import gc
-        counts = [None] * 5
-        for i in range(len(counts)):
-            support.run_unittest(*tests)
-            gc.collect()
-            counts[i] = sys.gettotalrefcount()
-        print(counts)
 
 if __name__ == "__main__":
-    test_main(verbose=True)
+    unittest.main()

Misc/NEWS

@@ -408,6 +408,9 @@ Library
 Tests
 -----
 
+- Issue #16888: test_array now works with unittest test discovery.
+  Patch by Zachary Ware.
+
 - Issue #16896: test_asyncore now works with unittest test discovery.
   Patch by Zachary Ware.