类 Is<T>

构造器详细资料

• Is

  public Is​(Matcher<T> matcher)

方法详细资料

• matches

  public boolean matches​(Object arg)

  从接口复制的说明: Matcher
  Evaluates the matcher for argument item.

  This method matches against Object, instead of the generic type T. This is because the caller of the Matcher does not know at runtime what the type is (because of type erasure with Java generics). It is down to the implementations to check the correct type.

  参数:

  arg - the object against which the matcher is evaluated.

  返回:

  true if item matches, otherwise false.

  另请参阅:

  BaseMatcher

• describeTo

  public void describeTo​(Description description)

  从接口复制的说明: SelfDescribing
  Generates a description of the object. The description may be part of a a description of a larger object of which this is just a component, so it should be worded appropriately.

  参数:

  description - The description to be built or appended to.

• describeMismatch

  public void describeMismatch​(Object item,
                               Description mismatchDescription)

  从接口复制的说明: Matcher
  Generate a description of why the matcher has not accepted the item. The description will be part of a larger description of why a matching failed, so it should be concise. This method assumes that matches(item) is false, but will not check this.

  指定者:

  describeMismatch 在接口中 Matcher<T>

  覆盖:

  describeMismatch 在类中 BaseMatcher<T>

  参数:

  item - The item that the Matcher has rejected.

  mismatchDescription - The description to be built or appended to.

• is

  public static <T> Matcher<T> is​(Matcher<T> matcher)

  Decorates another Matcher, retaining its behaviour, but allowing tests to be slightly more expressive.

  For example:

  assertThat(cheese, is(equalTo(smelly)))

  instead of:

  assertThat(cheese, equalTo(smelly))

• is

  public static <T> Matcher<T> is​(T value)

  A shortcut to the frequently used is(equalTo(x)).

  For example:

  assertThat(cheese, is(smelly))

  instead of:

  assertThat(cheese, is(equalTo(smelly)))

• is

  @Deprecated
  public static <T> Matcher<T> is​(Class<T> type)

  已过时。

  use isA(Class type) instead.
  A shortcut to the frequently used is(instanceOf(SomeClass.class)).

  For example:

  assertThat(cheese, is(Cheddar.class))

  instead of:

  assertThat(cheese, is(instanceOf(Cheddar.class)))

• isA

  public static <T> Matcher<T> isA​(Class<T> type)

  A shortcut to the frequently used is(instanceOf(SomeClass.class)).

  For example:

  assertThat(cheese, isA(Cheddar.class))

  instead of:

  assertThat(cheese, is(instanceOf(Cheddar.class)))