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grpc / grpc-java / #19964

28 Aug 2025 02:55PM UTC coverage: 88.56% (+0.01%) from 88.55%
#19964

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ejona86
interop-testing: Show full status for interop test failures

It's pretty annoying to see a test failure with
"expected:<DEADLINE_EXCEEDED> but was:<INTERNAL>" and not know the
description or throwable cause of the status. Introduce a convenience to
include the full status on unexpected Status.Code. There were two
usages of assertWithMessage() that did give nice errors; those were
converted to this new utility.

It'd be even better to make a StatusSubject, but that'd take more time
and this was easy and still an improvement. This was created because
we're seeing servlet test failures with INTERNAL code, and we need to
see the details.

34689 of 39170 relevant lines covered (88.56%)

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Source File
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87.88
/../netty/src/main/java/io/grpc/netty/ClientTransportLifecycleManager.java
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/*
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 * Copyright 2016 The gRPC Authors
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 *     http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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package io.grpc.netty;
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import com.google.errorprone.annotations.CanIgnoreReturnValue;
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import io.grpc.Attributes;
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import io.grpc.Status;
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import io.grpc.internal.ManagedClientTransport;
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/** Maintainer of transport lifecycle status. */
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final class ClientTransportLifecycleManager {
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  private final ManagedClientTransport.Listener listener;
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  private boolean transportReady;
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  private boolean transportShutdown;
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  private boolean transportInUse;
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  /** null iff !transportShutdown. */
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  private Status shutdownStatus;
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  /** null iff !transportShutdown. */
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  private boolean transportTerminated;
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  public ClientTransportLifecycleManager(ManagedClientTransport.Listener listener) {
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    this.listener = listener;
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  }
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  public Attributes filterAttributes(Attributes attributes) {
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    if (transportReady || transportShutdown) {
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      return attributes;
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    }
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    return listener.filterTransport(attributes);
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  }
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  public void notifyReady() {
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    if (transportReady || transportShutdown) {
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      return;
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    }
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    transportReady = true;
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    listener.transportReady();
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  }
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  /**
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   * Marks transport as shutdown, but does not set the error status. This must eventually be
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   * followed by a call to notifyShutdown.
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   */
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  public void notifyGracefulShutdown(Status s) {
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    if (transportShutdown) {
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      return;
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    }
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    transportShutdown = true;
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    listener.transportShutdown(s);
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  }
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  /** Returns {@code true} if was the first shutdown. */
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  @CanIgnoreReturnValue
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  public boolean notifyShutdown(Status s) {
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    notifyGracefulShutdown(s);
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    if (shutdownStatus != null) {
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      return false;
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    }
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    shutdownStatus = s;
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    return true;
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  }
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  public void notifyInUse(boolean inUse) {
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    if (inUse == transportInUse) {
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      return;
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    }
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    transportInUse = inUse;
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    listener.transportInUse(inUse);
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  }
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  public void notifyTerminated(Status s) {
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    if (transportTerminated) {
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      return;
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    }
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    transportTerminated = true;
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    notifyShutdown(s);
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    listener.transportTerminated();
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  }
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  public Status getShutdownStatus() {
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    return shutdownStatus;
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  }
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}
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