def test_index_equals_b(self) -> None:
idx1 = Index((5, 3, 20), dtype=np.int64)
idx2 = Index((5, 3, 20), dtype=np.int32)
self.assertFalse(idx1.equals(idx2, compare_dtype=True))
self.assertTrue(idx1.equals(idx2, compare_dtype=False))
def test_index_equals_d(self) -> None:
idx1 = Index((5, 3, np.nan))
idx2 = Index((5, 3, np.nan))
idx3 = Index((5, 3, None))
self.assertTrue(idx1.equals(idx2))
self.assertFalse(idx1.equals(idx2, skipna=False))
# nan and None are not treated equivalent, even with skipna true
self.assertFalse(idx1.equals(idx3, compare_dtype=False, skipna=True))
def test_index_equals_e(self) -> None:
a = Index([1, 2, 3])
b = Index([1, 2, 3])
c = Index([1, 3, 2])
d = Index([1, 2, 3, 4])
e = Index(['a', 2, 3])
self.assertFalse(not a.equals(b))
self.assertTrue(not a.equals(c))
self.assertTrue(not a.equals(c))
self.assertTrue(not a.equals(d))
self.assertTrue(not a.equals(e))
def test_index_intersection_e(self) -> None:
idx1 = Index((10, 'foo', None, 4.1))
idx2 = idx1.union(idx1)
self.assertEqual(id(idx1), id(idx2))
self.assertTrue(idx1.equals(idx1))
idx3 = idx1.intersection(idx1)
self.assertEqual(id(idx1), id(idx3))
self.assertTrue(idx1.equals(idx3))
idx4 = idx1.difference(idx1)
self.assertEqual(len(idx4), 0)
self.assertEqual(idx4.dtype, np.dtype(object))