/** Helper method the checks if the calculation result contains the expected result. */ private void checkResults(CalcResult calcResult, Object[][] expectedResults) { assertThat(calcResult, notNullValue()); // check that the array conversion looks sane Object[] results = calcResult.toArray(); assertThat(results.length, is(expectedResults.length)); // check that map conversion looks sane Map resultMap = calcResult.toMap(); assertThat(resultMap.entrySet().size(), is(expectedResults.length)); // check that the obtained values correspond to the expected ones for (Object[] expectedResult : expectedResults) { assertThat(contains(results, expectedResult), is(true)); } }