testing.assert_less¶

array_api_extra.testing.assert_less(x, y, *, err_msg='', verbose=True, check_dtype=True, check_shape=True, check_scalar=False, xp=None)¶

Check that two arrays are ordered by less than.

This is an interface to numpy.testing.assert_array_less() which accepts any standard-compatible array and performs additional array namespace, shape, and dtype checks.

Parameters:

x (object) – Array to compare according to x < y (elementwise).
y (object) – Array to compare according to x < y (elementwise).
err_msg (str) – Error message to display on failure.
verbose (bool) – Whether to include the conflicting arrays in the error message on failure.
check_dtype (bool) – Whether to check agreement between the dtypes of x and y.
check_shape (bool) – Whether to check agreement between the shapes of x and y.
check_scalar (bool) – NumPy only: whether to check agreement between actual and desired types — 0-D numpy.ndarray vs scalar (e.g. numpy.double).
xp (ModuleType | None) – A standard-compatible namespace which x and y must match.

Raises:

AssertionError – If x is not strictly smaller than y, elementwise.
ImportError – If numpy is not importable in the Python environment.