@Test
is used to signal that the annotated method is a test
method.
@Test
methods must not be private
or static
and
must not return a value.
@Test
methods may optionally declare parameters to be resolved by
ParameterResolvers
.
@Test
may also be used as a meta-annotation in order to create a
custom composed annotation that inherits the semantics of @Test
.
Inheritance
@Test
methods are inherited from superclasses as long as they are
not overridden according to the visibility rules of the Java language.
Similarly, @Test
methods declared as interface default methods
are inherited as long as they are not overridden.
Test Execution Order
By default, test methods will be ordered using an algorithm that is
deterministic but intentionally nonobvious. This ensures that subsequent runs
of a test suite execute test methods in the same order, thereby allowing for
repeatable builds. In this context, a test method is any instance
method that is directly annotated or meta-annotated with @Test
,
@RepeatedTest
, @ParameterizedTest
, @TestFactory
, or
@TestTemplate
.
Although true unit tests typically should not rely on the order
in which they are executed, there are times when it is necessary to enforce
a specific test method execution order — for example, when writing
integration tests or functional tests where the sequence of
the tests is important, especially in conjunction with
@TestInstance(Lifecycle.PER_CLASS)
.
To control the order in which test methods are executed, annotate your
test class or test interface with @TestMethodOrder
and specify the desired MethodOrderer
implementation.
- Since:
- 5.0
- See Also: