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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.orchestrator.controller;
import com.yahoo.concurrent.UncheckedTimeoutException;
import com.yahoo.test.ManualClock;
import com.yahoo.time.TimeBudget;
import org.junit.Before;
import org.junit.Test;
import java.time.Duration;
import java.util.Optional;
import static com.yahoo.vespa.orchestrator.controller.ClusterControllerClientTimeouts.CONNECT_TIMEOUT;
import static com.yahoo.vespa.orchestrator.controller.ClusterControllerClientTimeouts.DOWNSTREAM_OVERHEAD;
import static com.yahoo.vespa.orchestrator.controller.ClusterControllerClientTimeouts.MIN_SERVER_TIMEOUT;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
public class ClusterControllerClientTimeoutsTest {
// The minimum time that allows for a single RPC to CC.
private static final Duration MINIMUM_TIME_LEFT = CONNECT_TIMEOUT
.plus(DOWNSTREAM_OVERHEAD)
.plus(MIN_SERVER_TIMEOUT);
static {
assertEquals(Duration.ofMillis(500), MINIMUM_TIME_LEFT);
}
private final ManualClock clock = new ManualClock();
private Duration originalTimeout;
private ClusterControllerClientTimeouts timeouts;
private void makeTimeouts(Duration originalTimeout) {
this.originalTimeout = originalTimeout;
TimeBudget timeBudget = TimeBudget.from(clock, clock.instant(), Optional.of(originalTimeout));
this.timeouts = new ClusterControllerClientTimeouts(timeBudget);
}
@Before
public void setUp() {
makeTimeouts(Duration.ofSeconds(3));
}
@Test
public void makesManyRequestsWithShortProcessingTime() {
assertEquals(Duration.ofMillis(100), timeouts.connectTimeout());
assertEquals(Duration.ofMillis(2900), timeouts.readBudget().timeLeftOrThrow().get());
assertEquals(Duration.ofMillis(2600), timeouts.getServerTimeoutOrThrow());
clock.advance(Duration.ofMillis(100));
assertEquals(Duration.ofMillis(100), timeouts.connectTimeout());
assertEquals(Duration.ofMillis(2800), timeouts.readBudget().timeLeftOrThrow().get());
assertEquals(Duration.ofMillis(2500), timeouts.getServerTimeoutOrThrow());
clock.advance(Duration.ofMillis(100));
assertEquals(Duration.ofMillis(100), timeouts.connectTimeout());
assertEquals(Duration.ofMillis(2700), timeouts.readBudget().timeLeftOrThrow().get());
assertEquals(Duration.ofMillis(2400), timeouts.getServerTimeoutOrThrow());
}
@Test
public void alreadyTimedOut() {
clock.advance(Duration.ofSeconds(4));
try {
timeouts.getServerTimeoutOrThrow();
fail();
} catch (UncheckedTimeoutException e) {
assertEquals("Timed out after PT3S", e.getMessage());
}
}
@Test
public void justTooLittleTime() {
clock.advance(originalTimeout.minus(MINIMUM_TIME_LEFT).plus(Duration.ofMillis(1)));
try {
timeouts.getServerTimeoutOrThrow();
fail();
} catch (UncheckedTimeoutException e) {
assertEquals("Timed out after PT3S", e.getMessage());
}
}
@Test
public void justEnoughTime() {
clock.advance(originalTimeout.minus(MINIMUM_TIME_LEFT));
timeouts.getServerTimeoutOrThrow();
}
}
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