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package org.eclipse.viatra.solver.data.map.tests.fuzz;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.fail;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.stream.Stream;
import org.eclipse.viatra.solver.data.map.ContinousHashProvider;
import org.eclipse.viatra.solver.data.map.VersionedMapStore;
import org.eclipse.viatra.solver.data.map.VersionedMapStoreImpl;
import org.eclipse.viatra.solver.data.map.tests.fuzz.utils.FuzzTestUtils;
import org.eclipse.viatra.solver.data.map.tests.utils.MapTestEnvironment;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Timeout;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
class MultiThreadFuzzTest {
public static final int noThreads = 32;
private void runFuzzTest(String scenario, int seed, int steps, int maxKey, int maxValue, int commitFrequency,
boolean evilHash) {
String[] values = MapTestEnvironment.prepareValues(maxValue);
ContinousHashProvider<Integer> chp = MapTestEnvironment.prepareHashProvider(evilHash);
VersionedMapStore<Integer, String> store = new VersionedMapStoreImpl<Integer, String>(chp, values[0]);
// initialize runnables
MultiThreadTestRunnable[] runnables = new MultiThreadTestRunnable[noThreads];
for(int i = 0; i<noThreads; i++) {
runnables[i] = new MultiThreadTestRunnable(scenario+"-T"+(i+1), store, steps, maxKey, values, seed, commitFrequency);
}
// initialize threads
Thread[] threads = new Thread[noThreads];
for(int i = 0; i<noThreads; i++) {
threads[i] = new Thread(runnables[i]);
}
// start threads;
for(int i = 0; i<noThreads; i++) {
threads[i].start();
}
// wait all the threads;
for(int i = 0; i<noThreads; i++) {
try {
threads[i].join();
} catch (InterruptedException e) {
fail("Thread "+i+" interrupted.");
}
}
// collect errors
List<Throwable> errors = new LinkedList<>();
for(int i = 0; i<noThreads; i++) {
errors.addAll(runnables[i].getErrors());
}
assertEquals(Collections.EMPTY_LIST, errors);
}
@ParameterizedTest(name = "Multithread {index}/{0} Steps={1} Keys={2} Values={3} commit frequency={4} seed={5} evil-hash={6}")
@MethodSource
@Timeout(value = 10)
@Tag("fuzz")
void parametrizedFastFuzz(int tests, int steps, int noKeys, int noValues, int commitFrequency, int seed,
boolean evilHash) {
runFuzzTest("MultithreadS" + steps + "K" + noKeys + "V" + noValues + "CF" + commitFrequency + "s" + seed, seed, steps, noKeys, noValues,
commitFrequency, evilHash);
}
static Stream<Arguments> parametrizedFastFuzz() {
return FuzzTestUtils.permutationWithSize(new Object[] { FuzzTestUtils.FAST_STEP_COUNT }, new Object[] { 3, 32, 32 * 32 },
new Object[] { 2, 3 }, new Object[] { 10, 100 }, new Object[] { 1, 2, 3 },
new Object[] { false, true });
}
@ParameterizedTest(name = "Multithread {index}/{0} Steps={1} Keys={2} Values={3} commit frequency={4} seed={5} evil-hash={6}")
@MethodSource
@Tag("fuzz")
@Tag("slow")
void parametrizedSlowFuzz(int tests, int steps, int noKeys, int noValues, int commitFrequency, int seed,
boolean evilHash) {
runFuzzTest("RestoreS" + steps + "K" + noKeys + "V" + noValues + "s" + seed, seed, steps, noKeys, noValues,
commitFrequency, evilHash);
}
static Stream<Arguments> parametrizedSlowFuzz() {
return FuzzTestUtils.changeStepCount(RestoreFuzzTest.parametrizedFastFuzz(), 1);
}
}
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