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authorEric Wieser <wieser.eric@gmail.com>2017-03-26 09:34:11 +0100
committerGitHub <noreply@github.com>2017-03-26 09:34:11 +0100
commit1a82adf443de8b95cc747f44c2363f793a8d4ad4 (patch)
treeb784805162d0485a7af080245d967da387a18494 /numpy/lib/tests/test_function_base.py
parentb7dc5193f7136f5b09f45c3fb10118556e961e74 (diff)
parentec6d4295a80e5df235d3f5445e6425581309c930 (diff)
downloadnumpy-1a82adf443de8b95cc747f44c2363f793a8d4ad4.tar.gz
Merge pull request #8348 from anntzer/bincount-zero-minlength
ENH: Allow bincount(..., minlength=0).
Diffstat (limited to 'numpy/lib/tests/test_function_base.py')
-rw-r--r--numpy/lib/tests/test_function_base.py15
1 files changed, 7 insertions, 8 deletions
diff --git a/numpy/lib/tests/test_function_base.py b/numpy/lib/tests/test_function_base.py
index 188c1c2ea..708b20482 100644
--- a/numpy/lib/tests/test_function_base.py
+++ b/numpy/lib/tests/test_function_base.py
@@ -2507,11 +2507,16 @@ class TestBincount(TestCase):
x = np.array([0, 1, 0, 1, 1])
y = np.bincount(x, minlength=3)
assert_array_equal(y, np.array([2, 3, 0]))
+ x = []
+ y = np.bincount(x, minlength=0)
+ assert_array_equal(y, np.array([]))
def test_with_minlength_smaller_than_maxvalue(self):
x = np.array([0, 1, 1, 2, 2, 3, 3])
y = np.bincount(x, minlength=2)
assert_array_equal(y, np.array([1, 2, 2, 2]))
+ y = np.bincount(x, minlength=0)
+ assert_array_equal(y, np.array([1, 2, 2, 2]))
def test_with_minlength_and_weights(self):
x = np.array([1, 2, 4, 5, 2])
@@ -2535,22 +2540,16 @@ class TestBincount(TestCase):
"'str' object cannot be interpreted",
lambda: np.bincount(x, minlength="foobar"))
assert_raises_regex(ValueError,
- "must be positive",
+ "must be non-negative",
lambda: np.bincount(x, minlength=-1))
- assert_raises_regex(ValueError,
- "must be positive",
- lambda: np.bincount(x, minlength=0))
x = np.arange(5)
assert_raises_regex(TypeError,
"'str' object cannot be interpreted",
lambda: np.bincount(x, minlength="foobar"))
assert_raises_regex(ValueError,
- "minlength must be positive",
+ "minlength must be non-negative",
lambda: np.bincount(x, minlength=-1))
- assert_raises_regex(ValueError,
- "minlength must be positive",
- lambda: np.bincount(x, minlength=0))
@dec.skipif(not HAS_REFCOUNT, "python has no sys.getrefcount")
def test_dtype_reference_leaks(self):