@ParameterizedTest
@CsvSource({"5,5", "10,20", "9384,12384"})
void getWidth_OK(int width, int height) {
   Matrix m = new Matrix(width, height);
   Assertions.assertEquals(width, m.getWidth());
}

@ParameterizedTest
void getWidth_OK() {
   Matrix m = new Matrix(width, height);
   Assertions.assertEquals(width, m.getWidth());
}

Cap opció és correcta.

@ParameterizedTest
@XmlSource({"<5></5>", "<10></20>", "<9384></12384>"})
void getWidth_OK(int width, int height) {
   Matrix m = new Matrix(width, height);
   Assertions.assertEquals(width, m.getWidth());
}