Examples of TestCircuitBreaker

com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

    /**
     * Test a command execution that throws an HystrixException and didn't implement getFallback.
     */
    @Test
    public void testExecutionKnownFailureWithNoFallback() {
        TestCircuitBreaker circuitBreaker = new TestCircuitBreaker();
        TestHystrixCommand<Boolean> command = new KnownFailureTestCommandWithoutFallback(circuitBreaker);
        try {
            command.observe().toBlocking().single();
            fail("we shouldn't get here");
        } catch (HystrixRuntimeException e) {

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

    /**
     * Test a command execution that fails but has a fallback.
     */
    @Test
    public void testExecutionFailureWithFallback() {
        TestHystrixCommand<Boolean> command = new KnownFailureTestCommandWithFallback(new TestCircuitBreaker());
        try {
            assertEquals(false, command.observe().toBlocking().single());
        } catch (Exception e) {
            e.printStackTrace();
            fail("We should have received a response from the fallback.");

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

    /**
     * Test a command execution (asynchronously) that throws an HystrixException and didn't implement getFallback.
     */
    @Test
    public void testQueueKnownFailureWithNoFallback() {
        TestCircuitBreaker circuitBreaker = new TestCircuitBreaker();
        TestHystrixCommand<Boolean> command = new KnownFailureTestCommandWithoutFallback(circuitBreaker);
        try {
            command.observe().toBlocking().toFuture().get();
            fail("we shouldn't get here");
        } catch (Exception e) {

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

    /**
     * Test a command execution (asynchronously) that fails but has a fallback.
     */
    @Test
    public void testQueueFailureWithFallback() {
        TestHystrixCommand<Boolean> command = new KnownFailureTestCommandWithFallback(new TestCircuitBreaker());
        try {
            Future<Boolean> future = command.observe().toBlocking().toFuture();
            assertEquals(false, future.get());
        } catch (Exception e) {
            e.printStackTrace();

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

    /**
     * Test that the circuit-breaker will 'trip' and prevent command execution on subsequent calls.
     */
    @Test
    public void testCircuitBreakerTripsAfterFailures() {
        TestCircuitBreaker circuitBreaker = new TestCircuitBreaker();
        /* fail 3 times and then it should trip the circuit and stop executing */
        // failure 1
        KnownFailureTestCommandWithFallback attempt1 = new KnownFailureTestCommandWithFallback(circuitBreaker);
        attempt1.observe().toBlocking().single();
        assertTrue(attempt1.isResponseFromFallback());

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

    /**
     * Test that the circuit-breaker will 'trip' and prevent command execution on subsequent calls.
     */
    @Test
    public void testCircuitBreakerTripsAfterFailuresViaQueue() {
        TestCircuitBreaker circuitBreaker = new TestCircuitBreaker();
        try {
            /* fail 3 times and then it should trip the circuit and stop executing */
            // failure 1
            KnownFailureTestCommandWithFallback attempt1 = new KnownFailureTestCommandWithFallback(circuitBreaker);
            attempt1.observe().toBlocking().toFuture().get();

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

     * <p>
     * Multiple HystrixCommand objects with the same dependency use the same circuit-breaker.
     */
    @Test
    public void testCircuitBreakerAcrossMultipleCommandsButSameCircuitBreaker() {
        TestCircuitBreaker circuitBreaker = new TestCircuitBreaker();
        /* fail 3 times and then it should trip the circuit and stop executing */
        // failure 1
        KnownFailureTestCommandWithFallback attempt1 = new KnownFailureTestCommandWithFallback(circuitBreaker);
        attempt1.observe().toBlocking().single();
        assertTrue(attempt1.isResponseFromFallback());

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

    /**
     * Test that the circuit-breaker is different between HystrixCommand objects with a different Hystrix.
     */
    @Test
    public void testCircuitBreakerAcrossMultipleCommandsAndDifferentDependency() {
        TestCircuitBreaker circuitBreaker_one = new TestCircuitBreaker();
        TestCircuitBreaker circuitBreaker_two = new TestCircuitBreaker();
        /* fail 3 times, twice on one Hystrix, once on a different Hystrix ... circuit-breaker should NOT open */


        // failure 1
        KnownFailureTestCommandWithFallback attempt1 = new KnownFailureTestCommandWithFallback(circuitBreaker_one);
        attempt1.observe().toBlocking().single();

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

    /**
     * Test that the circuit-breaker counts a command execution timeout as a 'timeout' and not just failure.
     */
    @Test
    public void testShortCircuitFallbackCounter() {
        TestCircuitBreaker circuitBreaker = new TestCircuitBreaker().setForceShortCircuit(true);
        try {
            new KnownFailureTestCommandWithFallback(circuitBreaker).observe().toBlocking().single();


            assertEquals(1, circuitBreaker.metrics.getRollingCount(HystrixRollingNumberEvent.SHORT_CIRCUITED));

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Examples of com.netflix.hystrix.HystrixCircuitBreakerTest.TestCircuitBreaker

        assertEquals(2, HystrixRequestLog.getCurrentRequest().getAllExecutedCommands().size());
    }


    @Test
    public void testExecutionSemaphoreWithQueue() {
        final TestCircuitBreaker circuitBreaker = new TestCircuitBreaker();
        // single thread should work
        try {
            boolean result = new TestSemaphoreCommand(circuitBreaker, 1, 200).observe().toBlocking().toFuture().get();
            assertTrue(result);
        } catch (Exception e) {

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