def test_even_dimension(self):
with raises(InvalidStencilDimensionsError) as exc_info:
apply_stencil(Matrix(2, 2, range(4)), Matrix(4, 4, range(16)))
assert_exc_info_msg(
exc_info, 'Invalid odd dimensions for stencil: (2, 2)')
def test_successful_application(self, matrix_name):
stencil_matrix = open_matrix('stencil', matrix_name)
before_matrix = open_matrix('before', matrix_name)
after_matrix = open_matrix('after', matrix_name)
computed_matrix = apply_stencil(stencil_matrix, before_matrix)
assert computed_matrix == after_matrix
