Java Matchers.not方法代碼示例

import org.hamcrest.Matchers; //導入方法依賴的package包/類
@Test
public void addMatcher_doesNotNegateMatcher_when_negateNextMatcher_isFalse() {
    final Start.Matcher matcher = Cortado.view();
    final Cortado cortado = matcher.getCortado();
    assertThat(cortado.matchers).hasSize(0);
    assertThat(cortado.negateNextMatcher).isFalse();
    // no matchers added, negateNextMatcher is false

    org.hamcrest.Matcher<View> viewMatcher = ViewMatchers.withText("test");
    org.hamcrest.Matcher<View> negatedViewMatcher = Matchers.not(viewMatcher);

    cortado.negateNextMatcher = false;

    cortado.addMatcher(viewMatcher);
    assertThat(cortado.matchers).hasSize(1);
    // one matcher added

    assertThat(cortado.negateNextMatcher).isFalse();
    // negateNextMatcher is still false

    final Matcher<? super View> addedMatcher = cortado.matchers.get(0);
    Utils.assertThat(addedMatcher).isEqualTo(viewMatcher);
    Utils.assertThat(addedMatcher).isNotEqualTo(negatedViewMatcher);
}
 

import org.hamcrest.Matchers; //導入方法依賴的package包/類
@Test
public void addMatcher_negatesMatcher_when_negateNextMatcher_isTrue() {
    final Start.Matcher matcher = Cortado.view();
    final Cortado cortado = matcher.getCortado();
    assertThat(cortado.matchers).hasSize(0);
    assertThat(cortado.negateNextMatcher).isFalse();
    // no matchers added, negateNextMatcher is false

    org.hamcrest.Matcher<View> viewMatcher = ViewMatchers.withText("test");
    org.hamcrest.Matcher<View> negatedViewMatcher = Matchers.not(viewMatcher);

    cortado.negateNextMatcher = true;

    cortado.addMatcher(viewMatcher);
    assertThat(cortado.matchers).hasSize(1);
    // one matcher added

    assertThat(cortado.negateNextMatcher).isFalse();
    // negateNextMatcher is back to false

    final Matcher<? super View> addedMatcher = cortado.matchers.get(0);
    Utils.assertThat(addedMatcher).isNotEqualTo(viewMatcher);
    Utils.assertThat(addedMatcher).isEqualTo(negatedViewMatcher);
}
 

import org.hamcrest.Matchers; //導入方法依賴的package包/類
public void testMasterFaultDetectionConnectOnDisconnect() throws InterruptedException {
    Settings.Builder settings = Settings.builder();
    boolean shouldRetry = randomBoolean();
    ClusterName clusterName = new ClusterName(randomAsciiOfLengthBetween(3, 20));

    // make sure we don't ping
    settings.put(FaultDetection.CONNECT_ON_NETWORK_DISCONNECT_SETTING.getKey(), shouldRetry)
            .put(FaultDetection.PING_INTERVAL_SETTING.getKey(), "5m").put("cluster.name", clusterName.value());

    final ClusterState state = ClusterState.builder(clusterName).nodes(buildNodesForA(false)).build();
    setState(clusterServiceA, state);
    MasterFaultDetection masterFD = new MasterFaultDetection(settings.build(), threadPool, serviceA,
        clusterServiceA);
    masterFD.restart(nodeB, "test");

    final String[] failureReason = new String[1];
    final DiscoveryNode[] failureNode = new DiscoveryNode[1];
    final CountDownLatch notified = new CountDownLatch(1);
    masterFD.addListener((masterNode, cause, reason) -> {
        failureNode[0] = masterNode;
        failureReason[0] = reason;
        notified.countDown();
    });
    // will raise a disconnect on A
    serviceB.stop();
    notified.await(30, TimeUnit.SECONDS);

    CircuitBreaker inFlightRequestsBreaker = circuitBreakerService.getBreaker(CircuitBreaker.IN_FLIGHT_REQUESTS);
    assertThat(inFlightRequestsBreaker.getTrippedCount(), equalTo(0L));

    assertEquals(nodeB, failureNode[0]);
    Matcher<String> matcher = Matchers.containsString("verified");
    if (!shouldRetry) {
        matcher = Matchers.not(matcher);
    }

    assertThat(failureReason[0], matcher);
}
 

import org.hamcrest.Matchers; //導入方法依賴的package包/類
@VisibleForTesting
final void addMatcher(org.hamcrest.Matcher<View> matcher) {
    if (negateNextMatcher) {
        negateNextMatcher = false;
        matcher = Matchers.not(matcher);
    }
    matchers.add(matcher);
}
 

import org.hamcrest.Matchers; //導入方法依賴的package包/類
public void testNodesFaultDetectionConnectOnDisconnect() throws InterruptedException {
    boolean shouldRetry = randomBoolean();
    // make sure we don't ping again after the initial ping
    final Settings pingSettings = Settings.builder()
        .put(FaultDetection.CONNECT_ON_NETWORK_DISCONNECT_SETTING.getKey(), shouldRetry)
        .put(FaultDetection.PING_INTERVAL_SETTING.getKey(), "5m").build();
    ClusterState clusterState = ClusterState.builder(new ClusterName("test")).nodes(buildNodesForA(true)).build();
    NodesFaultDetection nodesFDA = new NodesFaultDetection(Settings.builder().put(settingsA).put(pingSettings).build(),
        threadPool, serviceA, clusterState.getClusterName());
    nodesFDA.setLocalNode(nodeA);
    NodesFaultDetection nodesFDB = new NodesFaultDetection(Settings.builder().put(settingsB).put(pingSettings).build(),
        threadPool, serviceB, clusterState.getClusterName());
    nodesFDB.setLocalNode(nodeB);
    final CountDownLatch pingSent = new CountDownLatch(1);
    nodesFDB.addListener(new NodesFaultDetection.Listener() {
        @Override
        public void onPingReceived(NodesFaultDetection.PingRequest pingRequest) {
            pingSent.countDown();
        }
    });
    nodesFDA.updateNodesAndPing(clusterState);

    // wait for the first ping to go out, so we will really respond to a disconnect event rather then
    // the ping failing
    pingSent.await(30, TimeUnit.SECONDS);

    final String[] failureReason = new String[1];
    final DiscoveryNode[] failureNode = new DiscoveryNode[1];
    final CountDownLatch notified = new CountDownLatch(1);
    nodesFDA.addListener(new NodesFaultDetection.Listener() {
        @Override
        public void onNodeFailure(DiscoveryNode node, String reason) {
            failureNode[0] = node;
            failureReason[0] = reason;
            notified.countDown();
        }
    });
    // will raise a disconnect on A
    serviceB.stop();
    notified.await(30, TimeUnit.SECONDS);

    CircuitBreaker inFlightRequestsBreaker = circuitBreakerService.getBreaker(CircuitBreaker.IN_FLIGHT_REQUESTS);
    assertThat(inFlightRequestsBreaker.getTrippedCount(), equalTo(0L));

    assertEquals(nodeB, failureNode[0]);
    Matcher<String> matcher = Matchers.containsString("verified");
    if (!shouldRetry) {
        matcher = Matchers.not(matcher);
    }

    assertThat(failureReason[0], matcher);
}