public class NotSpecTest {
    @Test
    public void testIsSatisfiedBy() {
        assertThat(new org.gradle.api.specs.NotSpec(createFilterSpec()).isSatisfiedBy(true), equalTo(false));
        assertThat(new org.gradle.api.specs.NotSpec(createFilterSpec()).isSatisfiedBy(false), equalTo(true));
    }

    private Spec<Boolean> createFilterSpec() {
        return new Spec<Boolean>() {
            public boolean isSatisfiedBy(Boolean element) {