def test_shuffle_mixed_dimension(self):
# Test for trac ticket #2074
for t in [[1, 2, 3, None], [(1, 1), (2, 2), (3, 3), None],
[1, (2, 2), (3, 3), None], [(1, 1), 2, 3, None]]:
random.seed(12345)
shuffled = list(t)
random.shuffle(shuffled)
assert_array_equal(shuffled, [t[0], t[3], t[1], t[2]])
def test_shuffle_of_array_of_objects(self):
# Test that permuting an array of objects will not cause
# a segfault on garbage collection.
# See gh-7719
random.seed(1234)
a = np.array([np.arange(1), np.arange(4)])
for _ in range(1000):
random.shuffle(a)
# Force Garbage Collection - should not segfault.
import gc
gc.collect()
def test_shuffle_of_array_of_different_length_strings(self):
# Test that permuting an array of different length strings
# will not cause a segfault on garbage collection
# Tests gh-7710
random.seed(1234)
a = np.array(["a", "a" * 1000])
for _ in range(100):
random.shuffle(a)
# Force Garbage Collection - should not segfault.
import gc
gc.collect()