1 files changed, 112 insertions, 0 deletions

diff --git a/store/src/test/java/org/eclipse/viatra/solver/data/map/tests/fuzz/SharedStoreFuzzTest.java b/store/src/test/java/org/eclipse/viatra/solver/data/map/tests/fuzz/SharedStoreFuzzTest.java
new file mode 100644
index 00000000..800308b4
--- /dev/null
+++ b/store/src/test/java/org/eclipse/viatra/solver/data/map/tests/fuzz/SharedStoreFuzzTest.java
@@ -0,0 +1,112 @@
+package org.eclipse.viatra.solver.data.map.tests.fuzz;
+
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Random;
+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.internal.VersionedMapImpl;
+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 SharedStoreFuzzTest {
+        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);
+
+                List<VersionedMapStore<Integer, String>> stores = VersionedMapStoreImpl.createSharedVersionedMapStores(5, chp, values[0]);
+
+                iterativeRandomPutsAndCommitsThenRestore(scenario, stores, steps, maxKey, values, seed, commitFrequency);
+        }
+
+        private void iterativeRandomPutsAndCommitsThenRestore(String scenario, List<VersionedMapStore<Integer, String>> stores,
+                        int steps, int maxKey, String[] values, int seed, int commitFrequency) {
+                // 1. maps with versions
+                Random r = new Random(seed);
+                List<VersionedMapImpl<Integer, String>> versioneds = new LinkedList<>();
+                for(VersionedMapStore<Integer, String> store : stores) {
+                        versioneds.add((VersionedMapImpl<Integer, String>) store.createMap());
+                }
+                                
+                List<Map<Integer, Long>> index2Version = new LinkedList<>();
+                for(int i = 0; i<stores.size(); i++) {
+                        index2Version.add(new HashMap<>());
+                }
+
+                for (int i = 0; i < steps; i++) {
+                        int stepIndex = i + 1;
+                        for (int storeIndex = 0; storeIndex<versioneds.size(); storeIndex++) {
+                                int nextKey = r.nextInt(maxKey);
+                                String nextValue = values[r.nextInt(values.length)];
+                                versioneds.get(storeIndex).put(nextKey, nextValue);
+                                if (stepIndex % commitFrequency == 0) {
+                                        long version = versioneds.get(storeIndex).commit();
+                                        index2Version.get(storeIndex).put(i, version);
+                                }
+                                MapTestEnvironment.printStatus(scenario, stepIndex, steps, "building");
+                        }               
+                }
+                // 2. create a non-versioned and
+                List<VersionedMapImpl<Integer, String>> reference = new LinkedList<>();
+                for(VersionedMapStore<Integer, String> store : stores) {
+                        reference.add((VersionedMapImpl<Integer, String>) store.createMap());
+                }
+                r = new Random(seed);
+
+                for (int i = 0; i < steps; i++) {
+                        int index = i + 1;
+                        for (int storeIndex = 0; storeIndex<versioneds.size(); storeIndex++) {
+                                int nextKey = r.nextInt(maxKey);
+                                String nextValue = values[r.nextInt(values.length)];
+                                reference.get(storeIndex).put(nextKey, nextValue);
+                                if (index % commitFrequency == 0) {
+                                        versioneds.get(storeIndex).restore(index2Version.get(storeIndex).get(i));
+                                        MapTestEnvironment.compareTwoMaps(scenario + ":" + index, reference.get(storeIndex), versioneds.get(storeIndex));
+                                }
+                        }
+                        MapTestEnvironment.printStatus(scenario, index, steps, "comparison");   
+                }
+
+        }
+
+        @ParameterizedTest(name = "Shared Store {index}/{0} Steps={1} Keys={2} Values={3} commit frequency={4} seed={5} evil-hash={6}")
+        @MethodSource
+        @Timeout(value = 10)
+        @Tag("smoke")
+        void parametrizedFastFuzz(int tests, int steps, int noKeys, int noValues, int commitFrequency, int seed,
+                        boolean evilHash) {
+                runFuzzTest("SharedS" + steps + "K" + noKeys + "V" + noValues + "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[] { 1, 10, 100 }, new Object[] { 1, 2, 3 },
+                                new Object[] { false, true });
+        }
+
+        @ParameterizedTest(name = "Shared Store {index}/{0} Steps={1} Keys={2} Values={3} commit frequency={4} seed={5} evil-hash={6}")
+        @MethodSource
+        @Tag("smoke")
+        @Tag("slow")
+        void parametrizedSlowFuzz(int tests, int steps, int noKeys, int noValues, int commitFrequency, int seed,
+                        boolean evilHash) {
+                runFuzzTest("SharedS" + steps + "K" + noKeys + "V" + noValues + "s" + seed, seed, steps, noKeys, noValues,
+                                commitFrequency, evilHash);
+        }
+
+        static Stream<Arguments> parametrizedSlowFuzz() {
+                return FuzzTestUtils.changeStepCount(RestoreFuzzTest.parametrizedFastFuzz(), 1);
+        }
+}