@ParameterizedTest(name = "{index}: Adding {0}")
@DisplayName("Adding a non-positive value to an existing sum causes an IllegalArgumentException")
@ValueSource(ints = { 0, -1, -6, -66, Integer.MIN_VALUE })
@ParameterizedTest(name = "{index}: Adding {0}")
@DisplayName("Adding a non-positive value to an existing sum causes an IllegalArgumentException")
@ValueSource(ints = { 0, -1, -6, -66, Integer.MIN_VALUE })