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How to use NullSafeComparator class of org.assertj.core.util package

Best Assertj code snippet using org.assertj.core.util.NullSafeComparator

Source:NullSafeComparatorTests.java

...17import java.util.Comparator;18import org.junit.jupiter.api.Test;19import static org.assertj.core.api.Assertions.assertThat;20/**21 * Tests for {@link NullSafeComparator}.22 *23 * @author Keith Donald24 * @author Chris Beams25 * @author Phillip Webb26 */27class NullSafeComparatorTests {28	@SuppressWarnings("unchecked")29	@Test30	void shouldCompareWithNullsLow() {31		Comparator<String> c = NullSafeComparator.NULLS_LOW;32		assertThat(c.compare(null, "boo") < 0).isTrue();33	}34	@SuppressWarnings("unchecked")35	@Test36	void shouldCompareWithNullsHigh() {37		Comparator<String> c = NullSafeComparator.NULLS_HIGH;38		assertThat(c.compare(null, "boo") > 0).isTrue();39		assertThat(c.compare(null, null) == 0).isTrue();40	}41}...

NullSafeComparator

Using AI Code Generation

1import static org.assertj.core.util.NullSafeComparator.nullSafeComparator;2import static org.assertj.core.api.Assertions.assertThat;3import org.junit.Test;4public class NullSafeComparatorTest {5    public void nullSafeComparatorTest() {6        Integer a = null;7        Integer b = 1;8        assertThat(nullSafeComparator().compare(a, b)).isLessThan(0);9    }10}11	at org.assertj.core.util.NullSafeComparator.compare(NullSafeComparator.java:20)12	at org.assertj.core.util.NullSafeComparatorTest.nullSafeComparatorTest(NullSafeComparatorTest.java:14)

NullSafeComparator

Using AI Code Generation

1import org.assertj.core.util.NullSafeComparator;2import org.junit.jupiter.api.Test;3import static org.assertj.core.api.Assertions.assertThat;4public class NullSafeComparatorTest {5    public void whenComparingNullAndNonNull_thenCorrect() {6        String nullString = null;7        String notNullString = "foo";8        int result = NullSafeComparator.nullSafeCompare(nullString, notNullString);9        assertThat(result).isLessThan(0);10    }11    public void whenComparingNonNullAndNull_thenCorrect() {12        String nullString = null;13        String notNullString = "foo";14        int result = NullSafeComparator.nullSafeCompare(notNullString, nullString);15        assertThat(result).isGreaterThan(0);16    }17    public void whenComparingNullAndNull_thenCorrect() {18        String nullString = null;19        String notNullString = null;20        int result = NullSafeComparator.nullSafeCompare(nullString, notNullString);21        assertThat(result).isEqualTo(0);22    }23    public void whenComparingNonNullAndNonNull_thenCorrect() {24        String string1 = "foo";25        String string2 = "foo";26        int result = NullSafeComparator.nullSafeCompare(string1, string2);27        assertThat(result).isEqualTo(0);28    }29}

NullSafeComparator

Using AI Code Generation

1    import org.assertj.core.util.*;2    import java.util.*;3    import static java.util.Comparator.*;4    import static java.util.Objects.*;5    public class NullSafeComparatorTest {6        public static void main(String[] args) {7            List<String> list = new ArrayList<>();8            list.add("a");9            list.add(null);10            list.add("c");11            list.add("b");12            list.add(null);13            list.add("d");14            list.add("e");15            System.out.println("list = " + list);

NullSafeComparator

Using AI Code Generation

1import org.assertj.core.util.NullSafeComparator;2import org.assertj.core.api.Assertions.assertThat;3import org.assertj.core.api.Assertions.assertThatNullPointerException;4public class NullSafeComparatorTest {5  private static final String NULL = null;6  private static final String NON_NULL = "not null";7  public void should_return_null_if_both_objects_are_null() {8    assertThat(NullSafeComparator.nullSafeCompare(NULL, NULL)).isNull();9  }10  public void should_return_null_if_both_objects_are_not_null_and_equal() {11    assertThat(NullSafeComparator.nullSafeCompare(NON_NULL, NON_NULL)).isNull();12  }13  public void should_return_0_if_both_objects_are_not_null_and_equal() {14    assertThat(NullSafeComparator.nullSafeCompare(NON_NULL, NON_NULL)).isEqualTo(0);15  }16  public void should_return_1_if_first_object_is_null_and_second_is_not() {17    assertThat(NullSafeComparator.nullSafeCompare(NULL, NON_NULL)).isEqualTo(1);18  }19  public void should_return_minus_1_if_first_object_is_not_null_and_second_is() {20    assertThat(NullSafeComparator.nullSafeCompare(NON_NULL, NULL)).isEqualTo(-1);21  }22  public void should_throw_NullPointerException_if_first_object_is_null_and_second_is_not() {23    assertThatNullPointerException().isThrownBy(() -> {24      NullSafeComparator.nullSafeCompare(NULL, NON_NULL);25    });26  }27  public void should_throw_NullPointerException_if_first_object_is_not_null_and_second_is() {28    assertThatNullPointerException().isThrownBy(() -> {29      NullSafeComparator.nullSafeCompare(NON_NULL, NULL);30    });31  }32}

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