Convert tests for Validate.noNullElements overloads to @Nested test
This commit is contained in:
Benedikt Ritter
parent
c0779f42c7
commit
ad97f20202
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@ -626,106 +626,156 @@ class ValidateTest {
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}
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}
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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@Test
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void testNoNullElementsArray1() {
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String[] array = new String[]{"a", "b"};
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Validate.noNullElements(array);
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try {
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Validate.noNullElements((Object[]) null);
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fail("Expecting NullPointerException");
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} catch (final NullPointerException ex) {
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assertEquals("The validated object is null", ex.getMessage());
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}
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array[1] = null;
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try {
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Validate.noNullElements(array);
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fail("Expecting IllegalArgumentException");
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} catch (final IllegalArgumentException ex) {
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assertEquals("The validated array contains null element at index: 1", ex.getMessage());
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@Nested
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class NoNullElements {
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@Nested
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class WithArray {
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@Nested
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class WithoutMessage {
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@Test
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void shouldNotThrowExceptionForNonEmptyArray() {
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Validate.noNullElements(new String[]{"a", "b"});
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}
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@Test
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void shouldReturnSameInstance() {
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final String[] array = {"a", "b"};
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final String[] result = Validate.noNullElements(array);
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assertSame(array, result);
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}
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@Test
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void shouldThrowNullPointerExceptionWithDefaultMessageForNullArray() {
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final NullPointerException ex = assertThrows(
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NullPointerException.class,
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() -> Validate.noNullElements((Object[]) null));
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assertEquals("The validated object is null", ex.getMessage());
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}
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@Test
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void shouldThrowIllegalArgumentExceptionWithDefaultMessageForArrayWithNullElement() {
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final IllegalArgumentException ex = assertThrows(
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IllegalArgumentException.class,
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() -> Validate.noNullElements(new String[]{"a", null}));
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assertEquals("The validated array contains null element at index: 1", ex.getMessage());
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}
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}
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@Nested
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class WithMessage {
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@Test
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void shouldNotThrowExceptionForNonEmptyArray() {
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Validate.noNullElements(new String[]{"a", "b"}, "MSG");
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}
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@Test
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void shouldReturnSameInstance() {
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final String[] array = {"a", "b"};
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final String[] result = Validate.noNullElements(array, "MSG");
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assertSame(array, result);
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}
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@Test
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void shouldThrowNullPointerExceptionWithDefaultMessageForNullArray() {
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final NullPointerException ex = assertThrows(
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NullPointerException.class,
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() -> Validate.noNullElements((Object[]) null, "MSG"));
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assertEquals("The validated object is null", ex.getMessage());
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}
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@Test
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void shouldThrowIllegalArgumentExceptionWithGivenMessageForArrayWithNullElement() {
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final IllegalArgumentException ex = assertThrows(
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IllegalArgumentException.class,
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() -> Validate.noNullElements(new String[]{"a", null}, "MSG"));
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assertEquals("MSG", ex.getMessage());
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}
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}
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}
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array = new String[]{"a", "b"};
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final String[] test = Validate.noNullElements(array);
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assertSame(array, test);
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}
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@Nested
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class WithCollection {
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//-----------------------------------------------------------------------
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@Test
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void testNoNullElementsArray2() {
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String[] array = new String[]{"a", "b"};
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Validate.noNullElements(array, "MSG");
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try {
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Validate.noNullElements((Object[]) null, "MSG");
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fail("Expecting NullPointerException");
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} catch (final NullPointerException ex) {
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assertEquals("The validated object is null", ex.getMessage());
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}
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array[1] = null;
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try {
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Validate.noNullElements(array, "MSG");
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fail("Expecting IllegalArgumentException");
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} catch (final IllegalArgumentException ex) {
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assertEquals("MSG", ex.getMessage());
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}
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@Nested
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class WithoutMessage {
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array = new String[]{"a", "b"};
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final String[] test = Validate.noNullElements(array, "Message");
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assertSame(array, test);
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}
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@Test
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void shouldNotThrowExceptionForNonEmptyCollection() {
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Validate.noNullElements(Collections.singleton("a"));
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}
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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@Test
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void testNoNullElementsCollection1() {
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final List<String> coll = new ArrayList<>();
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coll.add("a");
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coll.add("b");
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Validate.noNullElements(coll);
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try {
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Validate.noNullElements((Collection<?>) null);
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fail("Expecting NullPointerException");
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} catch (final NullPointerException ex) {
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assertEquals("The validated object is null", ex.getMessage());
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}
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coll.set(1, null);
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try {
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Validate.noNullElements(coll);
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fail("Expecting IllegalArgumentException");
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} catch (final IllegalArgumentException ex) {
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assertEquals("The validated collection contains null element at index: 1", ex.getMessage());
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}
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@Test
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void shouldReturnSameInstance() {
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Set<String> col = Collections.singleton("a");
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final Set<String> result = Validate.noNullElements(col);
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coll.set(1, "b");
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final List<String> test = Validate.noNullElements(coll);
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assertSame(coll, test);
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}
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assertSame(col, result);
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}
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//-----------------------------------------------------------------------
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@Test
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void testNoNullElementsCollection2() {
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final List<String> coll = new ArrayList<>();
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coll.add("a");
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coll.add("b");
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Validate.noNullElements(coll, "MSG");
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try {
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Validate.noNullElements((Collection<?>) null, "MSG");
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fail("Expecting NullPointerException");
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} catch (final NullPointerException ex) {
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assertEquals("The validated object is null", ex.getMessage());
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}
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coll.set(1, null);
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try {
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Validate.noNullElements(coll, "MSG");
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fail("Expecting IllegalArgumentException");
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} catch (final IllegalArgumentException ex) {
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assertEquals("MSG", ex.getMessage());
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}
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@Test
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void shouldThrowNullPointerExceptionWithDefaultMessageForNullCollection() {
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final NullPointerException ex = assertThrows(
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NullPointerException.class,
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() -> Validate.noNullElements((Collection<?>) null));
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coll.set(1, "b");
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final List<String> test = Validate.noNullElements(coll, "Message");
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assertSame(coll, test);
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assertEquals("The validated object is null", ex.getMessage());
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}
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@Test
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void shouldThrowIllegalArgumentExceptionWithDefaultMessageForCollectionWithNullElement() {
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final IllegalArgumentException ex = assertThrows(
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IllegalArgumentException.class,
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() -> Validate.noNullElements(Collections.singleton(null)));
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assertEquals("The validated collection contains null element at index: 0", ex.getMessage());
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}
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}
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@Nested
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class WithMessage {
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@Test
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void shouldNotThrowExceptionForNonEmptyCollection() {
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Validate.noNullElements(Collections.singleton("a"), "MSG");
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}
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@Test
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void shouldReturnSameInstance() {
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Set<String> col = Collections.singleton("a");
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final Set<String> result = Validate.noNullElements(col, "MSG");
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assertSame(col, result);
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}
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@Test
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void shouldThrowNullPointerExceptionWithDefaultMessageForNullCollection() {
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final NullPointerException ex = assertThrows(
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NullPointerException.class,
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() -> Validate.noNullElements((Collection<?>) null, "MSG"));
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assertEquals("The validated object is null", ex.getMessage());
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}
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@Test
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void shouldThrowIllegalArgumentExceptionWithGivenMessageForCollectionWithNullElement() {
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final IllegalArgumentException ex = assertThrows(
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IllegalArgumentException.class,
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() -> Validate.noNullElements(Collections.singleton(null), "MSG"));
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assertEquals("MSG", ex.getMessage());
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}
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}
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}
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}
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//-----------------------------------------------------------------------
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