arrays.assertContainsOnlyOnce(someInfo(), actual, arrayOf(10, 8, 6));
}
@Test
public void should_fail_if_actual_contains_given_values_only_more_than_once() {
AssertionInfo info = someInfo();
actual = arrayOf(6, -8, 10, -6, -8, 10, -8, 6);
int[] expected = { 6, -8, 20 };
try {
arrays.assertContainsOnlyOnce(info, actual, expected);
} catch (AssertionError e) {