org.junit.jupiter.api.function.ThrowingConsumer Java Examples

@Disabled
@TestFactory
Stream<DynamicTest> streamTest() {
    // Input data
    Integer array[] = { 1, 2, 3 };
    Iterator<Integer> inputGenerator = Arrays.asList(array).iterator();

    // Display names
    Function<Integer, String> displayNameGenerator = (
            input) -> "Data input:" + input;

    // Test executor
    ThrowingConsumer<Integer> testExecutor = (input) -> {
        System.out.println(input);
        assertTrue(input % 2 == 0);
    };

    // Returns a stream of dynamic tests
    return stream(inputGenerator, displayNameGenerator, testExecutor);
}
 

@TestFactory
Stream<DynamicTest> commonClassesShouldNotDependOnOtherDomainClasses() {
  Stream<String> packagesToTest =
      TASKANA_SUB_PACKAGES.stream()
          .map(p -> p.split("\\.")[2])
          .distinct()
          .filter(d -> !"common".equals(d))
          .map(d -> ".." + d + "..");
  ThrowingConsumer<String> testMethod =
      p ->
          noClasses()
              .that()
              .haveNameNotMatching(".*TaskanaEngine.*")
              .and()
              .haveSimpleNameNotEndingWith("AbstractTaskanaJob")
              .and()
              .resideInAPackage("..common..")
              .should()
              .dependOnClassesThat()
              .resideInAPackage(p)
              .check(importedClasses);
  return DynamicTest.stream(
      packagesToTest.iterator(), p -> p + " should not be used by common", testMethod);
}
 

@TestFactory
Stream<DynamicTest> classesShouldNotDependOnMonitorDomainClasses() {
  Stream<String> packagesToTest =
      TASKANA_SUB_PACKAGES.stream()
          .map(p -> p.split("\\.")[2])
          .distinct()
          .filter(d -> !"monitor".equals(d))
          .map(d -> ".." + d + "..");

  ThrowingConsumer<String> testMethod =
      p ->
          noClasses()
              .that()
              .resideInAPackage(p)
              .and()
              .haveNameNotMatching(".*TaskanaEngine.*")
              .should()
              .dependOnClassesThat()
              .resideInAnyPackage("..monitor..")
              .check(importedClasses);
  return DynamicTest.stream(
      packagesToTest.iterator(),
      p -> String.format("Domain %s should not depend on monitor", p),
      testMethod);
}
 

@TestFactory
Stream<DynamicTest> streamTest() {
    // Input data
    Integer array[] = { 1, 2, 3 };
    Iterator<Integer> inputGenerator = Arrays.asList(array).iterator();

    // Display names
    Function<Integer, String> displayNameGenerator = (
            input) -> "Data input:" + input;

    // Test executor
    ThrowingConsumer<Integer> testExecutor = (input) -> {
        System.out.println(input);
        assertTrue(input % 2 == 0);
    };

    // Returns a stream of dynamic tests
    return stream(inputGenerator, displayNameGenerator, testExecutor);
}
 

@TestFactory
Stream<DynamicTest> dynamicTestsFromStream() {

    // sample input and output
    List<String> inputList = Arrays.asList("www.somedomain.com", "www.anotherdomain.com", "www.yetanotherdomain.com");
    List<String> outputList = Arrays.asList("154.174.10.56", "211.152.104.132", "178.144.120.156");

    // input generator that generates inputs using inputList
    Iterator<String> inputGenerator = inputList.iterator();

    // a display name generator that creates a different name based on the input
    Function<String, String> displayNameGenerator = (input) -> "Resolving: " + input;

    // the test executor, which actually has the logic of how to execute the test case
    DomainNameResolver resolver = new DomainNameResolver();
    ThrowingConsumer<String> testExecutor = (input) -> {
        int id = inputList.indexOf(input);
        assertEquals(outputList.get(id), resolver.resolveDomain(input));
    };

    // combine everything and return a Stream of DynamicTest
    return DynamicTest.stream(inputGenerator, displayNameGenerator, testExecutor);
}
 

@TestFactory
Stream<DynamicTest> generateRandomNumberOfTests() {

    // Generates random positive integers between 0 and 100 until
    // a number evenly divisible by 7 is encountered.
    Iterator<Integer> inputGenerator = new Iterator<Integer>() {

        Random random = new Random();

        int current;

        @Override
        public boolean hasNext() {
            current = random.nextInt(100);
            return current % 7 != 0;
        }

        @Override
        public Integer next() {
            return current;
        }
    };

    // Generates display names like: input:5, input:37, input:85, etc.
    Function<Integer, String> displayNameGenerator = (input) -> "input:" + input;

    // Executes tests based on the current input value.
    ThrowingConsumer<Integer> testExecutor = (input) -> assertTrue(input % 7 != 0);

    // Returns a stream of dynamic tests.
    return DynamicTest.stream(inputGenerator, displayNameGenerator, testExecutor);
}
 

@TestFactory
Stream<DynamicTest> everySubPackageShouldBeFreeOfCyclicDependencies() {
  Stream<String> packagesToTest = TASKANA_SUB_PACKAGES.stream().map(s -> s + ".(*)..");
  ThrowingConsumer<String> testMethod =
      p -> slices().matching(p).should().beFreeOfCycles().check(importedClasses);
  return DynamicTest.stream(
      packagesToTest.iterator(),
      p -> p.replaceAll(Pattern.quote("pro.taskana."), "") + " is free of cycles",
      testMethod);
}
 

private static ThrowingConsumer<ValueDecorator<String>> stringDecoratorConsumer(String input) {
    return decorator -> {
        String expectedDecorated = decorator.prefix().orElse("")
                + input
                + decorator.suffix().orElse("");
        assertThat(decorator.decorate(input), is(equalTo(expectedDecorated)));
        assertThat(decorator.decorate(expectedDecorated), is(equalTo(expectedDecorated)));
    };
}
 

private static ThrowingConsumer<TupleDecorator<URL, String>> tupleUrlStringDecoratorConsumer(URL inputUrl,
        String inputText) {
    return decorator -> {
        String expectedDecorated = decorator.prefix().orElse("")
                + inputUrl.toString()
                + decorator.separator()
                + inputText
                + decorator.suffix().orElse("");
        assertThat(decorator.decorate(inputUrl, inputText), is(equalTo(expectedDecorated)));
    };
}
 

private void testKitTest(ThrowingConsumer<Blockchain> test) {
  Snapshot view = testKit.getSnapshot();
  Blockchain blockchain = Blockchain.newInstance(view);
  try {
    test.accept(blockchain);
  } catch (Throwable t) {
    fail(t);
  }
}
 

/**
 * Assert credentials.
 *
 * @param ctx The test context to report to.
 * @param tenantId The tenant to check for.
 * @param deviceId The device to check for.
 * @param authId The authentication id to check for.
 * @param type The credentials type to check for.
 * @param mangementValidation The validation logic for the management data.
 * @param adapterValidation The validation logic for the protocol adapter data.
 * @param whenComplete Call when this assertion was successful.
 */
protected void assertGet(final VertxTestContext ctx,
        final String tenantId, final String deviceId, final String authId, final String type,
        final ThrowingConsumer<OperationResult<List<CommonCredential>>> mangementValidation,
        final ThrowingConsumer<CredentialsResult<JsonObject>> adapterValidation,
        final ExecutionBlock whenComplete) {

    getCredentialsManagementService().readCredentials(tenantId, deviceId, NoopSpan.INSTANCE)
            .onComplete(ctx.succeeding(s3 -> ctx.verify(() -> {

                // assert a few basics, optionals may be empty
                // but must not be null
                assertNotNull(s3.getCacheDirective());
                assertResourceVersion(s3);

                mangementValidation.accept(s3);

                getCredentialsService().get(
                        tenantId,
                        type,
                        authId,
                        CLIENT_CONTEXT)
                        .onComplete(ctx.succeeding(s4 -> ctx.verify(() -> {

                            adapterValidation.accept(s4);

                            whenComplete.apply();
                        })));

            })));

}
 

private Stream<DynamicTest> toDynamicTests(
		List<? extends OperatorScenario<I, PI, O, PO>> scenarios,
		ThrowingConsumer<OperatorScenario<I, PI, O, PO>> executable
) {
	return scenarios.stream().map(scenario -> {
		return toDynamicTest(scenario, () -> {
			executable.accept(scenario);
		});
	});
}
 

@TestFactory
public Stream<DynamicTest> dynamicUserTestCollection() {
    List<User> inputList = Arrays.asList(new User("[email protected]", "John"), new User("[email protected]", "Ana"));

    Function<User, String> displayNameGenerator = (input) -> "Saving user: " + input;

    UserDAO userDAO = new UserDAO();
    ThrowingConsumer<User> testExecutor = (input) -> {
        userDAO.add(input);
        assertNotNull(userDAO.findOne(input.getEmail()));
    };

    return DynamicTest.stream(inputList.iterator(), displayNameGenerator, testExecutor);
}
 

@SuppressWarnings("unchecked")
public static <T> ThrowingConsumer<Method> noArgStaticFactoryConsumer(Consumer<T> delegateConsumer) {
    return staticFactoryMethod -> delegateConsumer.accept((T) staticFactoryMethod.invoke(null));
}