@Test
public void testSetDefaultExpectedInsertions() {

    final Configuration c = new Configuration();
    assertThatThrownBy(() -> c.setDefaultExpectedInsertions(-1))
            .isInstanceOf(IllegalArgumentException.class)
            .hasMessage("defaultExpectedInsertions: -1 (expected: > 0)");
    assertThatThrownBy(() -> c.setDefaultExpectedInsertions(0))
            .isInstanceOf(IllegalArgumentException.class)
            .hasMessage("defaultExpectedInsertions: 0 (expected: > 0)");
}