Class IntStreamSubject

java.lang.Object
com.google.common.truth.Subject
com.google.common.truth.IntStreamSubject

public final class IntStreamSubject extends Subject
Propositions for IntStream subjects.

Note: the wrapped stream will be drained immediately into a private collection to provide more readable failure messages. You should not use this class if you intend to leave the stream un-consumed or if the stream is very large or infinite.

If you intend to make multiple assertions on the same stream of data you should instead first collect the contents of the stream into a collection, and then assert directly on that.

For very large or infinite streams you may want to first limit the stream before asserting on it.

  • Field Details

    • actualList

      private final List<?> actualList
  • Constructor Details

  • Method Details

    • actualCustomStringRepresentation

      protected String actualCustomStringRepresentation()
      Description copied from class: Subject
      Supplies the direct string representation of the actual value to other methods which may prefix or otherwise position it in an error message. This should only be overridden to provide an improved string representation of the value under test, as it would appear in any given error message, and should not be used for additional prefixing.

      Subjects should override this with care.

      By default, this returns String.ValueOf(getActualValue()).

      Overrides:
      actualCustomStringRepresentation in class Subject
    • intStreams

      public static Subject.Factory<IntStreamSubject,IntStream> intStreams()
    • isEmpty

      public void isEmpty()
      Fails if the subject is not empty.
    • isNotEmpty

      public void isNotEmpty()
      Fails if the subject is empty.
    • hasSize

      public void hasSize(int expectedSize)
      Fails if the subject does not have the given size.

      If you'd like to check that your stream contains more than Integer.MAX_VALUE elements, use assertThat(stream.count()).isEqualTo(...).

    • contains

      public void contains(int element)
      Fails if the subject does not contain the given element.
    • doesNotContain

      public void doesNotContain(int element)
      Fails if the subject contains the given element.
    • containsNoDuplicates

      public void containsNoDuplicates()
      Fails if the subject contains duplicate elements.
    • containsAnyOf

      public void containsAnyOf(int first, int second, int... rest)
      Fails if the subject does not contain at least one of the given elements.
    • containsAnyIn

      public void containsAnyIn(Iterable<?> expected)
      Fails if the subject does not contain at least one of the given elements.
    • containsAtLeast

      public Ordered containsAtLeast(int first, int second, int... rest)
      Fails if the subject does not contain all of the given elements. If an element appears more than once in the given elements, then it must appear at least that number of times in the actual elements.

      To also test that the contents appear in the given order, make a call to inOrder() on the object returned by this method. The expected elements must appear in the given order within the actual elements, but they are not required to be consecutive.

    • containsAtLeastElementsIn

      public Ordered containsAtLeastElementsIn(Iterable<?> expected)
      Fails if the subject does not contain all of the given elements. If an element appears more than once in the given elements, then it must appear at least that number of times in the actual elements.

      To also test that the contents appear in the given order, make a call to inOrder() on the object returned by this method. The expected elements must appear in the given order within the actual elements, but they are not required to be consecutive.

    • containsExactly

      public Ordered containsExactly(int... varargs)
      Fails if the subject does not contain exactly the given elements.

      Multiplicity is respected. For example, an object duplicated exactly 3 times in the parameters asserts that the object must likewise be duplicated exactly 3 times in the subject.

      To also test that the contents appear in the given order, make a call to inOrder() on the object returned by this method.

    • containsExactlyElementsIn

      public Ordered containsExactlyElementsIn(Iterable<?> expected)
      Fails if the subject does not contain exactly the given elements.

      Multiplicity is respected. For example, an object duplicated exactly 3 times in the parameters asserts that the object must likewise be duplicated exactly 3 times in the subject.

      To also test that the contents appear in the given order, make a call to inOrder() on the object returned by this method.

    • containsNoneOf

      public void containsNoneOf(int first, int second, int... rest)
      Fails if the subject contains any of the given elements. (Duplicates are irrelevant to this test, which fails if any of the actual elements equal any of the excluded.)
    • containsNoneIn

      public void containsNoneIn(Iterable<?> excluded)
      Fails if the subject contains any of the given elements. (Duplicates are irrelevant to this test, which fails if any of the actual elements equal any of the excluded.)
    • isInStrictOrder

      public void isInStrictOrder()
      Fails if the subject is not strictly ordered, according to the natural ordering of its elements. Strictly ordered means that each element in the stream is strictly greater than the element that preceded it.
      Throws:
      ClassCastException - if any pair of elements is not mutually Comparable
      NullPointerException - if any element is null
    • isInStrictOrder

      public void isInStrictOrder(Comparator<? super Integer> comparator)
      Fails if the subject is not strictly ordered, according to the given comparator. Strictly ordered means that each element in the stream is strictly greater than the element that preceded it.
      Throws:
      ClassCastException - if any pair of elements is not mutually Comparable
    • isInOrder

      public void isInOrder()
      Fails if the subject is not ordered, according to the natural ordering of its elements. Ordered means that each element in the stream is greater than or equal to the element that preceded it.
      Throws:
      ClassCastException - if any pair of elements is not mutually Comparable
      NullPointerException - if any element is null
    • isInOrder

      public void isInOrder(Comparator<? super Integer> comparator)
      Fails if the subject is not ordered, according to the given comparator. Ordered means that each element in the stream is greater than or equal to the element that preceded it.
      Throws:
      ClassCastException - if any pair of elements is not mutually Comparable
    • box

      private static Object[] box(int[] rest)