def test_index_intersection_c(self) -> None:
idx1 = Index((10, 20))
with self.assertRaises(RuntimeError):
# raises as it identifies labelled data
_ = idx1.intersection(Series([20, 30]))
idx2 = idx1.intersection(Series([20, 30]).values)
self.assertEqual(idx2.values.tolist(), [20])
idx3 = idx1.intersection([20, 30])
self.assertEqual(idx3.values.tolist(), [20])
def test_index_intersection_b(self) -> None:
idx1 = Index(('c', 'b', 'a'))
idx2 = Index(('c', 'b', 'a'))
idx3 = idx1.intersection(idx2)
self.assertEqual(idx3.values.tolist(), ['c', 'b', 'a'])
def test_index_intersection_g(self) -> None:
idx1 = Index(('c', 'b', 'a'))
idx2 = Index(('b', 'a', 'r'))
idx3 = Index(('w', 'b', 'x'))
idx4 = idx1.intersection(idx2, idx3)
self.assertEqual(idx4.values.tolist(), ['b'])
def test_index_intersection_a(self) -> None:
idx1 = Index(('a', 'b', 'c', 'd', 'e'))
a1 = np.array(['c', 'dd', 'b', 'a'])
idx2 = idx1.intersection(a1)
self.assertEqual(idx2.values.tolist(), ['a', 'b', 'c'])
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))
def test_index_intersection_d(self) -> None:
idx1 = Index((10, 20))
with self.assertRaises(NotImplementedError):
idx2 = idx1.intersection('b') #type: ignore
def test_index_intersection_c(self) -> None:
idx1 = Index((10, 20))
idx2 = idx1.intersection(Series([20, 30]))
self.assertEqual(idx2.values.tolist(), [20])
def test_index_intersection_d(self) -> None:
idx1 = Index((10, 20))
idx2 = idx1.intersection('b')
self.assertEqual(len(idx2), 0)
