SLCORE-1555 Run medium tests in parallel

medium-tests/pom.xml

@@ -90,6 +90,14 @@
 
   <build>
     <plugins>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-surefire-plugin</artifactId>
+          <configuration>
+            <forkCount>1C</forkCount>
+            <reuseForks>true</reuseForks>
+          </configuration>
+        </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-dependency-plugin</artifactId>

medium-tests/src/test/java/mediumtest/EffectiveRulesMediumTests.java

@@ -125,7 +125,7 @@ void it_should_fail_when_rule_key_unknown_and_project_is_not_bound(SonarLintTest
 
     var futureResponse = backend.getRulesService().getEffectiveRuleDetails(new GetEffectiveRuleDetailsParams("scopeId", "python:SXXXX", null));
 
-    assertThat(futureResponse).failsWithin(1, TimeUnit.SECONDS)
+    assertThat(futureResponse).failsWithin(2, TimeUnit.SECONDS)
       .withThrowableOfType(ExecutionException.class)
       .withCauseInstanceOf(ResponseErrorException.class)
       .withMessageContaining("Could not find rule 'python:SXXXX' in embedded rules");

medium-tests/src/test/java/mediumtest/promotion/ExtraEnabledLanguagesInConnectedModePromotionMediumTests.java

@@ -42,7 +42,6 @@
 import static org.mockito.Mockito.after;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
-import static org.sonarsource.sonarlint.core.rpc.protocol.backend.initialize.BackendCapability.EMBEDDED_SERVER;
 
 class ExtraEnabledLanguagesInConnectedModePromotionMediumTests {
   @RegisterExtension
@@ -58,7 +57,6 @@ void it_should_notify_clients_for_a_detected_language_that_is_enabled_only_in_co
     var backend = harness.newBackend()
       .withExtraEnabledLanguagesInConnectedMode(Language.ABAP)
       .withUnboundConfigScope("configScopeId")
-      .withBackendCapability(EMBEDDED_SERVER)
       .withTelemetryEnabled()
       .start(fakeClient);
 
@@ -83,7 +81,6 @@ void it_should_not_notify_clients_when_already_in_connected_mode(SonarLintTestHa
       .withExtraEnabledLanguagesInConnectedMode(Language.ABAP)
       .withSonarQubeConnection("connectionId", server, storage -> storage.withProject("projectKey", project -> project.withRuleSet("abap", ruleSet -> ruleSet.withActiveRule("abap:S100", "MAJOR")).withMainBranch("main")))
       .withBoundConfigScope("configScopeId", "connectionId", "projectKey")
-      .withBackendCapability(EMBEDDED_SERVER)
       .withTelemetryEnabled()
       .start(fakeClient);
 
@@ -104,7 +101,6 @@ void it_should_not_notify_clients_when_detected_language_is_not_an_extra_languag
     var backend = harness.newBackend()
       .withEnabledLanguageInStandaloneMode(Language.ABAP)
       .withUnboundConfigScope("configScopeId")
-      .withBackendCapability(EMBEDDED_SERVER)
       .withTelemetryEnabled()
       .start(fakeClient);
 
@@ -125,7 +121,6 @@ void it_should_not_notify_clients_when_no_language_was_detected_during_analysis(
       .build();
     var backend = harness.newBackend()
       .withUnboundConfigScope("configScopeId")
-      .withBackendCapability(EMBEDDED_SERVER)
       .withTelemetryEnabled()
       .start(fakeClient);
 

medium-tests/src/test/java/mediumtest/smartnotifications/SmartNotificationsMediumTests.java

@@ -287,7 +287,7 @@ void it_should_skip_polling_notifications_when_sonarcloud_websocket_opened(Sonar
 
     harness.newBackend()
       .withSonarQubeCloudEuRegionUri(mockWebServerExtension.endpointParams().getBaseUrl())
-      .withSonarQubeCloudEuRegionWebSocketUri(webSocketServer.getUrl())
+      .withSonarQubeCloudEuRegionWebSocketUri(webSocketServer.getUri())
       .withSonarCloudConnectionAndNotifications(CONNECTION_ID, "myOrg", storage -> storage.withProject(PROJECT_KEY, project -> project.withLastSmartNotificationPoll(STORED_DATE)))
       .withBoundConfigScope("scopeId", CONNECTION_ID, PROJECT_KEY)
       .withBackendCapability(SMART_NOTIFICATIONS, SERVER_SENT_EVENTS)

medium-tests/src/test/java/mediumtest/websockets/WebSocketMediumTests.java

@@ -74,7 +74,7 @@ class WebSocketMediumTests {
   void prepare() {
     webSocketServerEU = new WebSocketServer();
     webSocketServerEU.start();
-    webSocketServerUS = new WebSocketServer(WebSocketServer.DEFAULT_PORT + 1);
+    webSocketServerUS = new WebSocketServer();
     webSocketServerUS.start();
   }
 
@@ -512,9 +512,9 @@ void should_log_failure_and_reconnect_later_if_server_unavailable(SonarLintTestH
       backend.getConnectionService()
         .didUpdateConnections(new DidUpdateConnectionsParams(emptyList(), List.of(new SonarCloudConnectionConfigurationDto("connectionId", "orgKey", SonarCloudRegion.EU, false))));
 
-      await().untilAsserted(() -> assertThat(client.getLogMessages()).contains("Error while trying to create websocket connection for ws://localhost:54321/endpoint"));
+      await().untilAsserted(() -> assertThat(client.getLogMessages()).contains("Error while trying to create websocket connection for " + webSocketServerEU.getUri()));
 
-      webSocketServerEU.start();
+      webSocketServerEU.restart();
       // Emulate a change on the connection to force websocket service to reconnect
       backend.getConnectionService().didChangeCredentials(new DidChangeCredentialsParams("connectionId"));
 
@@ -1493,8 +1493,8 @@ void should_send_one_subscribe_message_per_project_key_when_reopening_connection
   public SonarLintBackendFixture.SonarLintBackendBuilder newBackendWithWebSockets(SonarLintTestHarness harness) {
     return harness.newBackend()
       .withBackendCapability(SERVER_SENT_EVENTS)
-      .withSonarQubeCloudEuRegionWebSocketUri(webSocketServerEU.getUrl())
-      .withSonarQubeCloudUsRegionWebSocketUri(webSocketServerUS.getUrl());
+      .withSonarQubeCloudEuRegionWebSocketUri(webSocketServerEU.getUri())
+      .withSonarQubeCloudUsRegionWebSocketUri(webSocketServerUS.getUri());
   }
 
   public static class WebSocketPayloadBuilder {

test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/SonarLintBackendFixture.java

@@ -162,14 +162,14 @@ public static class SonarLintBackendBuilder {
     @Nullable
     private String euRegionApiUri;
     @Nullable
-    private String euRegionWebSocketUri;
+    private URI euRegionWebSocketUri;
 
     @Nullable
     private String usRegionUri;
     @Nullable
     private String usRegionApiUri;
     @Nullable
-    private String usRegionWebSocketUri;
+    private URI usRegionWebSocketUri;
 
     private Duration responseTimeout;
     private Path keyStorePath;
@@ -253,7 +253,7 @@ public SonarLintBackendBuilder withSonarQubeCloudEuRegionApiUri(String euRegionA
       return this;
     }
 
-    public SonarLintBackendBuilder withSonarQubeCloudEuRegionWebSocketUri(String euRegionWebSocketUri) {
+    public SonarLintBackendBuilder withSonarQubeCloudEuRegionWebSocketUri(URI euRegionWebSocketUri) {
       this.euRegionWebSocketUri = euRegionWebSocketUri;
       return this;
     }
@@ -268,7 +268,7 @@ public SonarLintBackendBuilder withSonarQubeCloudUsRegionApiUri(String usRegionA
       return this;
     }
 
-    public SonarLintBackendBuilder withSonarQubeCloudUsRegionWebSocketUri(String usRegionWebSocketUri) {
+    public SonarLintBackendBuilder withSonarQubeCloudUsRegionWebSocketUri(URI usRegionWebSocketUri) {
       this.usRegionWebSocketUri = usRegionWebSocketUri;
       return this;
     }
@@ -496,9 +496,9 @@ public SonarLintTestRpcServer start(SonarLintRpcClientDelegate client) {
         // If more regions are added in the future, extend this by adding a new entry set and add the fields / methods above!
         var sonarCloudAlternativeEnvironment = new SonarCloudAlternativeEnvironmentDto(Map.of(
           SonarCloudRegion.EU,
-          new SonarQubeCloudRegionDto(createUriFromString(euRegionUri), createUriFromString(euRegionApiUri), createUriFromString(euRegionWebSocketUri)),
+          new SonarQubeCloudRegionDto(createUriFromString(euRegionUri), createUriFromString(euRegionApiUri), euRegionWebSocketUri),
           SonarCloudRegion.US,
-          new SonarQubeCloudRegionDto(createUriFromString(usRegionUri), createUriFromString(usRegionApiUri), createUriFromString(usRegionWebSocketUri))));
+          new SonarQubeCloudRegionDto(createUriFromString(usRegionUri), createUriFromString(usRegionApiUri), usRegionWebSocketUri)));
 
         var sslConfiguration = new SslConfigurationDto(null, null, null, keyStorePath, keyStorePassword, keyStoreType);
         var httpConfiguration = new HttpConfigurationDto(sslConfiguration, null, null, null, responseTimeout);

test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/server/NetworkUtils.java

@@ -0,0 +1,81 @@
+/*
+ * SonarLint Core - Test Utils
+ * Copyright (C) 2016-2025 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+package org.sonarsource.sonarlint.core.test.utils.server;
+
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.ServerSocket;
+import java.net.UnknownHostException;
+import java.util.HashSet;
+import java.util.Set;
+
+public final class NetworkUtils {
+
+  private static final Set<Integer> ALREADY_ALLOCATED = new HashSet<>();
+  private static final int MAX_TRIES = 50;
+
+  private static final Set<Integer> HTTP_BLOCKED_PORTS = Set.of(2_049, 4_045, 6_000);
+
+  private NetworkUtils() {
+    // prevent instantiation
+  }
+
+  public static int getNextAvailablePort() {
+    return getNextAvailablePort(getLocalhost());
+  }
+
+  static int getNextAvailablePort(InetAddress inetAddress) {
+    return getNextAvailablePort(inetAddress, new PortAllocator());
+  }
+
+  private static InetAddress getLocalhost() {
+    try {
+      return InetAddress.getLocalHost();
+    } catch (UnknownHostException e) {
+      throw new IllegalStateException("Fail to get localhost IP", e);
+    }
+  }
+
+  static int getNextAvailablePort(InetAddress address, PortAllocator portAllocator) {
+    for (var i = 0; i < MAX_TRIES; i++) {
+      int port = portAllocator.getAvailable(address);
+      if (isValidPort(port)) {
+        ALREADY_ALLOCATED.add(port);
+        return port;
+      }
+    }
+    throw new IllegalStateException("Fail to find an available port on " + address);
+  }
+
+  private static boolean isValidPort(int port) {
+    return port > 1023 && !HTTP_BLOCKED_PORTS.contains(port) && !ALREADY_ALLOCATED.contains(port);
+  }
+
+  static class PortAllocator {
+
+    int getAvailable(InetAddress address) {
+      try (var socket = new ServerSocket(0, 50, address)) {
+        return socket.getLocalPort();
+      } catch (IOException e) {
+        throw new IllegalStateException("Fail to find an available port on " + address, e);
+      }
+    }
+  }
+}

test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/server/ServerFixture.java

@@ -27,6 +27,7 @@
 import com.github.tomakehurst.wiremock.matching.AnythingPattern;
 import com.google.protobuf.Message;
 import java.io.IOException;
+import java.net.URI;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.time.Instant;
@@ -775,6 +776,7 @@ public static class Server {
     private final boolean serverSentEventsEnabled;
     private final Set<String> features;
     private SSEServer sseServer;
+    private URI sseServerUri;
 
     public Server(ServerKind serverKind, ServerStatus serverStatus, @Nullable String version,
       Map<String, SonarQubeCloudBuilder.SonarQubeCloudOrganizationBuilder> organizationsByKey, Map<String, AbstractServerBuilder.ServerProjectBuilder> projectsByProjectKey,
@@ -800,7 +802,7 @@ public void start() {
       mockServer.start();
       if (serverSentEventsEnabled) {
         sseServer = new SSEServer();
-        sseServer.start();
+        sseServerUri = sseServer.start();
       }
       registerWebApiResponses();
     }
@@ -1508,7 +1510,7 @@ private void registerPushApiResponses() {
         .withQueryParam("languages", new AnythingPattern())
         .willReturn(aResponse()
           .withStatus(302)
-          .withHeader("Location", sseServer.getUrl())));
+          .withHeader("Location", sseServerUri.toString())));
     }
 
     private void registerFeaturesApiResponses() {

test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/server/sse/SSEServer.java

@@ -20,27 +20,30 @@
 package org.sonarsource.sonarlint.core.test.utils.server.sse;
 
 import java.io.File;
+import java.net.URI;
 import org.apache.catalina.LifecycleException;
 import org.apache.catalina.startup.Tomcat;
+import org.sonarsource.sonarlint.core.test.utils.server.NetworkUtils;
 
 public class SSEServer {
 
-  public static final int DEFAULT_PORT = 54321;
   private Tomcat tomcat;
   private SSEServlet sseServlet;
 
-  public void start() {
+  public URI start() {
     try {
       var baseDir = new File("").getAbsoluteFile().getParentFile().getPath();
       tomcat = new Tomcat();
       tomcat.setBaseDir(baseDir);
-      tomcat.setPort(DEFAULT_PORT);
+      var port = NetworkUtils.getNextAvailablePort();
+      tomcat.setPort(port);
       var context = tomcat.addContext("", baseDir);
       sseServlet = new SSEServlet();
       Tomcat.addServlet(context, "sse", sseServlet).addMapping("/");
       // needed to start the endpoint
       tomcat.getConnector();
       tomcat.start();
+      return URI.create("http://localhost:" + port);
     } catch (LifecycleException e) {
       throw new IllegalStateException(e);
     }
@@ -55,10 +58,6 @@ public void stop() {
     }
   }
 
-  public String getUrl() {
-    return "http://localhost:" + DEFAULT_PORT;
-  }
-
   public void sendEventToAllClients(String eventPayload) {
     sseServlet.sendEventToAllClients(eventPayload);
   }

test-utils/src/main/java/org/sonarsource/sonarlint/core/test/utils/server/websockets/WebSocketServer.java

@@ -20,33 +20,35 @@
 package org.sonarsource.sonarlint.core.test.utils.server.websockets;
 
 import java.io.File;
+import java.net.URI;
 import java.util.List;
 import org.apache.catalina.LifecycleException;
 import org.apache.catalina.servlets.DefaultServlet;
 import org.apache.catalina.startup.Tomcat;
+import org.sonarsource.sonarlint.core.test.utils.server.NetworkUtils;
 
 public class WebSocketServer {
 
-  public static final int DEFAULT_PORT = 54321;
   public static final String CONNECTION_REPOSITORY_ATTRIBUTE_KEY = "connectionRepository";
   private Tomcat tomcat;
   private WebSocketConnectionRepository connectionRepository;
-  private final int port;
+  private int port = -1;
 
-  public WebSocketServer(int port) {
-    this.port = port;
+  public void start() {
+    start(NetworkUtils.getNextAvailablePort());
   }
 
-  public WebSocketServer() {
-    this(DEFAULT_PORT);
+  public void restart() {
+    start(port);
   }
 
-  public void start() {
+  private void start(int port) {
     try {
       var baseDir = new File("").getAbsoluteFile().getParentFile().getPath();
       tomcat = new Tomcat();
       tomcat.setBaseDir(baseDir);
       tomcat.setPort(port);
+      this.port = port;
       var context = tomcat.addContext("", baseDir);
       connectionRepository = new WebSocketConnectionRepository();
       context.getServletContext().setAttribute(CONNECTION_REPOSITORY_ATTRIBUTE_KEY, connectionRepository);
@@ -69,8 +71,8 @@ public void stop() {
     }
   }
 
-  public String getUrl() {
-    return "ws://localhost:" + port + "/endpoint";
+  public URI getUri() {
+    return URI.create("ws://localhost:" + port + "/endpoint");
   }
 
   public List<WebSocketConnection> getConnections() {