Method do_signed_overflow_bounds

numpy/lib/tests/test_histograms.py:326–331

(self, dtype)

        assert_equal(t_edge.dtype, td)

    def do_signed_overflow_bounds(self, dtype):
        exponent = 8 * np.dtype(dtype).itemsize - 1
        arr = np.array([-2**exponent + 4, 2**exponent - 4], dtype=dtype)
        hist, e = histogram(arr, bins=2)
        assert_equal(e, [-2**exponent + 4, 0, 2**exponent - 4])
        assert_equal(hist, [1, 1])

    def test_signed_overflow_bounds(self):
        self.do_signed_overflow_bounds(np.byte)