diff options
Diffstat (limited to 'numpy/lib/tests/test_histograms.py')
| -rw-r--r-- | numpy/lib/tests/test_histograms.py | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/numpy/lib/tests/test_histograms.py b/numpy/lib/tests/test_histograms.py index a71060a46..1b5a71d0e 100644 --- a/numpy/lib/tests/test_histograms.py +++ b/numpy/lib/tests/test_histograms.py @@ -119,6 +119,13 @@ class TestHistogram(object): h, b = histogram(a, bins=8, range=[1, 9], weights=w) assert_equal(h, w[1:-1]) + def test_arr_weights_mismatch(self): + a = np.arange(10) + .5 + w = np.arange(11) + .5 + with assert_raises_regex(ValueError, "same shape as"): + h, b = histogram(a, range=[1, 9], weights=w, density=True) + + def test_type(self): # Check the type of the returned histogram a = np.arange(10) + .5 @@ -242,6 +249,12 @@ class TestHistogram(object): assert_raises(ValueError, histogram, vals, range=[np.nan,0.75]) assert_raises(ValueError, histogram, vals, range=[0.25,np.inf]) + def test_invalid_range(self): + # start of range must be < end of range + vals = np.linspace(0.0, 1.0, num=100) + with assert_raises_regex(ValueError, "max must be larger than"): + np.histogram(vals, range=[0.1, 0.01]) + def test_bin_edge_cases(self): # Ensure that floating-point computations correctly place edge cases. arr = np.array([337, 404, 739, 806, 1007, 1811, 2012]) @@ -258,6 +271,13 @@ class TestHistogram(object): hist, edges = np.histogram(arr, bins=30, range=(-0.5, 5)) assert_equal(hist[-1], 1) + def test_bin_array_dims(self): + # gracefully handle bins object > 1 dimension + vals = np.linspace(0.0, 1.0, num=100) + bins = np.array([[0, 0.5], [0.6, 1.0]]) + with assert_raises_regex(ValueError, "must be 1d"): + np.histogram(vals, bins=bins) + def test_unsigned_monotonicity_check(self): # Ensures ValueError is raised if bins not increasing monotonically # when bins contain unsigned values (see #9222) |