feat: enhance CI by adding slow unit tests and coverage reporting

.github/workflows/mvn-test.yml

@@ -87,7 +87,7 @@
 
       - name: Run Unit Tests with Coverage
         # verify because it runs the tests and generates the coverage report, ITs are skipped
-        run: ./mvnw verify -Pcoverage --batch-mode --errors --fail-never --show-version -pl !e2e,!e2e-perf
+        run: ./mvnw verify -Pcoverage --batch-mode --errors --fail-never --show-version -pl !e2e,!e2e-perf -DexcludedGroups=slow
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
@@ -110,7 +110,50 @@
             **/jacoco*.xml
           retention-days: 1
 
+  slow-unit-tests:
+    runs-on: ubuntu-latest
+    needs: build-and-package
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0
+        with:
+          distribution: "temurin"
+          java-version: 21
+          cache: "maven"
+
+      - name: Restore Maven artifacts
+        uses: actions/cache/restore@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        with:
+          path: ~/.m2/repository
+          key: maven-repo-${{ github.run_id }}-${{ github.run_attempt }}
+
+      - name: Run Slow Unit Tests with Coverage
+        run: ./mvnw verify -Pcoverage --batch-mode --errors --fail-never --show-version -pl engine  -Dgroups=slow
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Unit Tests Reporter
+        uses: dorny/test-reporter@dc3a92680fcc15842eef52e8c4606ea7ce6bd3f3 # v2.1.1
+        if: success() || failure()
+        with:
+          name: Unit Tests Report
+          path: "**/surefire-reports/TEST*.xml"
+          list-suites: "failed"
+          list-tests: "failed"
+          reporter: java-junit
+
+      - name: Upload unit test coverage reports
+        if: success() || failure()
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: slow-unit-coverage-reports
+          path: |
+            **/jacoco*.xml
+          retention-days: 1
+
   integration-tests:
     runs-on: ubuntu-latest
     needs: build-and-package
     steps:
@@ -369,7 +412,7 @@
 
   coverage-report:
     runs-on: ubuntu-latest
-    needs: [ unit-tests, integration-tests ]
+    needs: [ unit-tests, integration-tests, slow-unit-tests ]
     if: success() || failure()
     steps:
       - name: Download unit test coverage reports
@@ -378,6 +421,12 @@
           name: unit-coverage-reports
           path: unit-coverage
 
+      - name: Download unit test coverage reports
+        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
+        with:
+          name: slow-unit-coverage-reports
+          path: slow-unit-coverage
+
       - name: Download integration test coverage reports
         uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
         with:

engine/src/test/java/com/arcadedb/ACIDTransactionTest.java

@@ -36,13 +36,19 @@
 import com.arcadedb.schema.Schema;
 import com.arcadedb.schema.Type;
 import com.arcadedb.schema.VertexType;
+import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
 
-import java.io.*;
-import java.util.*;
-import java.util.concurrent.*;
-import java.util.concurrent.atomic.*;
-import java.util.logging.*;
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.Iterator;
+import java.util.List;
+import java.util.concurrent.Callable;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.logging.Level;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.fail;
@@ -256,6 +262,7 @@ public Void call() throws IOException {
   }
 
   @Test
+  @Tag("slow")
   public void testAsyncIOExceptionAfterWALIsWrittenManyRecords() {
     final Database db = database;
 
@@ -397,6 +404,7 @@ public void multiThreadConcurrentTransactions() {
   }
 
   @Test
+  @Tag("slow")
   public void testAsyncEdges() {
     final Database db = database;
 

engine/src/test/java/com/arcadedb/CRUDTest.java

@@ -28,6 +28,7 @@
 import com.arcadedb.schema.Schema;
 import com.arcadedb.schema.Type;
 
+import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
 
 import java.util.concurrent.atomic.*;
@@ -77,6 +78,7 @@ public void testUpdate() {
   }
 
   @Test
+  @Tag("slow")
   public void testMultiUpdatesOverlap() {
     final Database db = database;
 
@@ -177,6 +179,7 @@ public void testUpdateAndDelete() {
   }
 
   @Test
+  @Tag("slow")
   public void testMultiUpdatesAndDeleteOverlap() {
     final Database db = database;
     try {

engine/src/test/java/com/arcadedb/RandomTestMultiThreadsTest.java

@@ -32,6 +32,7 @@
 import com.arcadedb.schema.Schema;
 import com.arcadedb.schema.VertexType;
 import com.arcadedb.utility.Pair;
+import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
 
 import java.math.*;
@@ -58,6 +59,7 @@ public class RandomTestMultiThreadsTest extends TestHelper {
   private final boolean                              debug                   = false;
 
   @Test
+  @Tag("slow")
   public void testRandom() {
     GlobalConfiguration.COMMIT_LOCK_TIMEOUT.setValue(10_000);
 

engine/src/test/java/com/arcadedb/engine/RandomDeleteTest.java

@@ -24,6 +24,7 @@
 import com.arcadedb.database.Record;
 import com.arcadedb.graph.MutableVertex;
 import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
 
 import java.util.*;
@@ -34,6 +35,7 @@ public class RandomDeleteTest {
   private static final int    CYCLES      = 3;
 
   @Test
+  @Tag("slow")
   public void testSmallRecords() {
     try (DatabaseFactory databaseFactory = new DatabaseFactory("databases/randomDeleteTest")) {
       if (databaseFactory.exists())

engine/src/test/java/com/arcadedb/engine/RecordRecyclingTest.java

@@ -22,15 +22,15 @@
 import com.arcadedb.database.Database;
 import com.arcadedb.database.DatabaseFactory;
 import com.arcadedb.database.RID;
-import com.arcadedb.graph.MutableEdge;
 import com.arcadedb.graph.MutableVertex;
 import com.arcadedb.graph.Vertex;
 import com.arcadedb.query.select.SelectIterator;
 import com.arcadedb.query.sql.executor.ResultSet;
+import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
 
-import java.io.*;
-import java.util.*;
+import java.io.File;
+import java.util.Collection;
 
 import static com.arcadedb.schema.LocalSchema.STATISTICS_FILE_NAME;
 import static org.assertj.core.api.Assertions.assertThat;
@@ -43,6 +43,7 @@ public class RecordRecyclingTest {
   private final static int    TOT_VERTICES = 1000;
 
   @Test
+  @Tag("slow")
   public void testCreateAndDeleteGraph() {
     GlobalConfiguration.BUCKET_REUSE_SPACE_MODE.setValue("high");
 

engine/src/test/java/com/arcadedb/index/LSMTreeIndexTest.java

@@ -31,6 +31,7 @@
 import com.arcadedb.schema.DocumentType;
 import com.arcadedb.schema.Schema;
 import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
 
 import java.util.ArrayList;
@@ -1011,6 +1012,7 @@ public void testScanIndexRangeExclusive2Exclusive() {
   }
 
   @Test
+  @Tag("slow")
   public void testUniqueConcurrentWithIndexesCompaction() throws InterruptedException {
     database.begin();
     final long startingWith = database.countType(TYPE_NAME, true);

engine/src/test/java/com/arcadedb/index/TypeLSMTreeIndexTest.java

@@ -32,6 +32,7 @@
 import com.arcadedb.schema.Schema;
 import com.arcadedb.schema.Type;
 import com.arcadedb.schema.VertexType;
+import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
 
 import java.util.ArrayList;
@@ -560,6 +561,7 @@ public void testScanIndexRangeExclusive2ExclusiveInverse() {
   }
 
   @Test
+  @Tag("slow")
   public void testUniqueConcurrentWithIndexesCompaction() {
     GlobalConfiguration.INDEX_COMPACTION_MIN_PAGES_SCHEDULE.setValue(0);