/**
* Verifies that a client timeout will be detected by a Nailgun NGInputStream reading from a
* blocking heartbeat stream.
*/
@Test(expected = InterruptedException.class)
public void whenClientTimeoutDetectedThenMainThreadIsInterrupted()
throws InterruptedException, IOException {
final long timeoutMillis = 100;
final long intervalMillis = timeoutMillis * 2; // Interval > timeout to trigger disconnection.
final ProjectWorkspace workspace =
TestDataHelper.createProjectWorkspaceForScenario(this, "exclusive_execution", tmp);
workspace.setUp();
// Build an NGContext connected to an NGInputStream reading from a stream that will timeout.
Thread.currentThread().setName("Test");
try (TestContext context =
new TestContext(
ImmutableMap.copyOf(System.getenv()),
TestContext.createHeartBeatStream(intervalMillis),
timeoutMillis)) {
final Thread commandThread = Thread.currentThread();
context.addClientListener(
new NGClientListener() {
@Override
public void clientDisconnected() throws InterruptedException {
commandThread.interrupt();
}
});
Thread.sleep(1000);
fail("Should have been interrupted.");
}
}
/**
* This verifies that a client disconnection will be detected by a Nailgun NGInputStream reading
* from an empty heartbeat stream and that the generated InterruptedException will interrupt
* command execution causing it to fail.
*/
@Test
public void whenClientDisconnectionDetectedThenTestIsInterrupted()
throws InterruptedException, IOException {
// Sub process interruption not supported on Windows.
assumeTrue(Platform.detect() != Platform.WINDOWS);
final long timeoutMillis = 2000; // Stream timeout > test timeout.
final long disconnectMillis = 100; // Disconnect before test timeout.
final ProjectWorkspace workspace =
TestDataHelper.createProjectWorkspaceForScenario(this, "exclusive_execution", tmp);
workspace.setUp();
// Start with an input stream that sends heartbeats at a regular rate.
final DelegatingInputStream inputStream =
new DelegatingInputStream(TestContext.createHeartBeatStream(timeoutMillis / 10));
// Build an NGContext connected to an NGInputStream reading from stream that will timeout.
try (TestContext context =
new TestContext(ImmutableMap.copyOf(System.getenv()), inputStream, timeoutMillis)) {
BuckEventListener listener =
new BuckEventListener() {
@Subscribe
@SuppressWarnings("unused")
public void onEvent(TestRunEvent.Started event) {
// When tests start running, make the heartbeat stream simulate a disconnection.
inputStream.setDelegate(TestContext.createDisconnectionStream(disconnectMillis));
}
@Override
public void outputTrace(BuildId buildId) throws InterruptedException {
// do nothing
}
};
ProcessResult result = workspace.runBuckdCommand(context, listener, "test", "//:test");
result.assertFailure();
assertThat(result.getStderr(), containsString("InterruptedException"));
}
}
/**
* This verifies that a client timeout will be detected by a Nailgun NGInputStream reading from an
* empty heartbeat stream and that the generated InterruptedException will cause command execution
* to fail after timeout.
*/
@Test
public void whenClientDisconnectionDetectedThenBuildIsInterrupted()
throws InterruptedException, IOException {
// Sub process interruption not supported on Windows.
assumeTrue(Platform.detect() != Platform.WINDOWS);
final long timeoutMillis = 2000; // Stream timeout > test timeout.
final long disconnectMillis = 100; // Disconnect before test timeout.
final ProjectWorkspace workspace =
TestDataHelper.createProjectWorkspaceForScenario(this, "exclusive_execution", tmp);
workspace.setUp();
// Build an NGContext connected to an NGInputStream reading from stream that will timeout.
try (TestContext context =
new TestContext(
ImmutableMap.copyOf(System.getenv()),
TestContext.createDisconnectionStream(disconnectMillis),
timeoutMillis)) {
ProcessResult result = workspace.runBuckdCommand(context, "build", "//:sleep");
result.assertFailure();
assertThat(result.getStderr(), containsString("InterruptedException"));
}
}