Examples of TestCircuitBreaker

com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

    /**
     * Test that a BadRequestException can be thrown and not count towards errors and bypasses fallback.
     */
    @Test
    public void testBadRequestExceptionViaExecuteInSemaphore() {
        TestCircuitBreaker circuitBreaker = new TestCircuitBreaker();
        try {
            new BadRequestCommand(circuitBreaker, ExecutionIsolationStrategy.SEMAPHORE).observe().toBlocking().single();
            fail("we expect to receive a " + HystrixBadRequestException.class.getSimpleName());
        } catch (HystrixBadRequestException e) {
            // success

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

    /**
     * Test that a BadRequestException can be thrown and not count towards errors and bypasses fallback.
     */
    @Test
    public void testBadRequestExceptionViaQueueInSemaphore() {
        TestCircuitBreaker circuitBreaker = new TestCircuitBreaker();
        try {
            new BadRequestCommand(circuitBreaker, ExecutionIsolationStrategy.SEMAPHORE).observe().toBlocking().toFuture().get();
            fail("we expect to receive a " + HystrixBadRequestException.class.getSimpleName());
        } catch (ExecutionException e) {
            e.printStackTrace();

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

    /**
     * Test a checked Exception being thrown
     */
    @Test
    public void testCheckedExceptionViaExecute() {
        TestCircuitBreaker circuitBreaker = new TestCircuitBreaker();
        CommandWithCheckedException command = new CommandWithCheckedException(circuitBreaker);
        try {
            command.observe().toBlocking().single();
            fail("we expect to receive a " + Exception.class.getSimpleName());
        } catch (Exception e) {

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

     * 
     * @throws InterruptedException
     */
    @Test
    public void testCheckedExceptionViaObserve() throws InterruptedException {
        TestCircuitBreaker circuitBreaker = new TestCircuitBreaker();
        CommandWithCheckedException command = new CommandWithCheckedException(circuitBreaker);
        final AtomicReference<Throwable> t = new AtomicReference<Throwable>();
        final CountDownLatch latch = new CountDownLatch(1);
        try {
            command.observe().subscribe(new Observer<Boolean>() {

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

    /**
     * Test a java.lang.Error being thrown
     */
    @Test
    public void testErrorThrownViaExecute() {
        TestCircuitBreaker circuitBreaker = new TestCircuitBreaker();
        CommandWithErrorThrown command = new CommandWithErrorThrown(circuitBreaker);
        try {
            command.observe().toBlocking().single();
            fail("we expect to receive a " + Error.class.getSimpleName());
        } catch (Exception e) {

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

    /**
     * Test a java.lang.Error being thrown
     */
    @Test
    public void testErrorThrownViaQueue() {
        TestCircuitBreaker circuitBreaker = new TestCircuitBreaker();
        CommandWithErrorThrown command = new CommandWithErrorThrown(circuitBreaker);
        try {
            command.observe().toBlocking().toFuture().get();
            fail("we expect to receive an Exception");
        } catch (Exception e) {

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

     * 
     * @throws InterruptedException
     */
    @Test
    public void testErrorThrownViaObserve() throws InterruptedException {
        TestCircuitBreaker circuitBreaker = new TestCircuitBreaker();
        CommandWithErrorThrown command = new CommandWithErrorThrown(circuitBreaker);
        final AtomicReference<Throwable> t = new AtomicReference<Throwable>();
        final CountDownLatch latch = new CountDownLatch(1);
        try {
            command.observe().subscribe(new Observer<Boolean>() {

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

     * Execution hook on failed execution with a fallback
     */
    @Test
    public void testExecutionHookRunFailureWithFallback() {
        // test with observe().toBlocking().single() 
        TestHystrixCommand<Boolean> command = new KnownFailureTestCommandWithFallback(new TestCircuitBreaker());
        command.observe().toBlocking().single();


        // the run() method should run as we're not short-circuited or rejected
        assertEquals(1, command.builder.executionHook.startRun.get());
        // we should not have a response from run since run() failed
        assertNull(command.builder.executionHook.runSuccessResponse);
        // we should have an exception since run() failed
        assertNotNull(command.builder.executionHook.runFailureException);


        // the fallback() method should be run since run() failed
        assertEquals(1, command.builder.executionHook.startFallback.get());
        // a response since fallback is implemented
        assertNotNull(command.builder.executionHook.fallbackSuccessResponse);
        // null since it's implemented and succeeds
        assertNull(command.builder.executionHook.fallbackFailureException);


        // the observe().toBlocking().single() method was used
        assertEquals(1, command.builder.executionHook.startExecute.get());
        // we should have a response from observe().toBlocking().single() since we expect a fallback despite failure of run()
        assertNotNull(command.builder.executionHook.endExecuteSuccessResponse);
        // we should not have an exception because we expect a fallback
        assertNull(command.builder.executionHook.endExecuteFailureException);


        // thread execution
        //        assertEquals(1, command.builder.executionHook.threadStart.get());
        //        assertEquals(1, command.builder.executionHook.threadComplete.get());


        // test with observe().toBlocking().toFuture() 
        command = new KnownFailureTestCommandWithFallback(new TestCircuitBreaker());
        try {
            command.observe().toBlocking().toFuture().get();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

    /**
     * Execution hook on short-circuit with a fallback
     */
    @Test
    public void testExecutionHookShortCircuitedWithFallbackViaQueue() {
        TestCircuitBreaker circuitBreaker = new TestCircuitBreaker().setForceShortCircuit(true);
        KnownFailureTestCommandWithoutFallback command = new KnownFailureTestCommandWithoutFallback(circuitBreaker);
        try {
            // now execute one that will be short-circuited
            command.observe().toBlocking().toFuture().get();
            fail("we expect an error as there is no fallback");

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

    /**
     * Execution hook on short-circuit with a fallback
     */
    @Test
    public void testExecutionHookShortCircuitedWithFallbackViaExecute() {
        TestCircuitBreaker circuitBreaker = new TestCircuitBreaker().setForceShortCircuit(true);
        KnownFailureTestCommandWithoutFallback command = new KnownFailureTestCommandWithoutFallback(circuitBreaker);
        try {
            // now execute one that will be short-circuited
            command.observe().toBlocking().single();
            fail("we expect an error as there is no fallback");

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