Fix copy&paste errors and reformulate the tests.
diff --git a/Lib/test/test_buffer.py b/Lib/test/test_buffer.py
index 977b282..747e2a2 100644
--- a/Lib/test/test_buffer.py
+++ b/Lib/test/test_buffer.py
@@ -4001,23 +4001,13 @@
# equality-hash invariant
x = ndarray(list(range(12)), shape=[12], format='B')
- a = memoryview(nd)
+ a = memoryview(x)
y = ndarray(list(range(12)), shape=[12], format='b')
- b = memoryview(nd)
+ b = memoryview(y)
- z = ndarray(list(bytes(chr(x), 'latin-1') for x in range(12)),
- shape=[12], format='c')
- c = memoryview(nd)
-
- if (a == b):
- self.assertEqual(hash(a), hash(b))
-
- if (a == c):
- self.assertEqual(hash(a), hash(c))
-
- if (b == c):
- self.assertEqual(hash(b), hash(c))
+ self.assertEqual(a, b)
+ self.assertEqual(hash(a), hash(b))
# non-byte formats
nd = ndarray(list(range(12)), shape=[2,2,3], format='L')