Migrating tests to testkit part 3 (neo4j#840)

Adding support for supportsMultiDB call.

And exporting the following tests to testkit:
- shouldServerWithBoltV4SupportMultiDb -> test_should_successfully_check_if_support_for_multi_db_is_available
- shouldServerWithBoltV3NotSupportMultiDb -> test_should_successfully_check_if_support_for_multi_db_is_available

Removing redundant scripts

driver/src/test/java/org/neo4j/driver/integration/RoutingDriverBoltKitIT.java

@@ -27,7 +27,6 @@
 
 import java.io.IOException;
 import java.net.URI;
-import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
@@ -48,10 +47,8 @@
 import org.neo4j.driver.internal.cluster.RoutingSettings;
 import org.neo4j.driver.internal.retry.RetrySettings;
 import org.neo4j.driver.internal.security.SecurityPlanImpl;
-import org.neo4j.driver.internal.util.DriverFactoryWithClock;
 import org.neo4j.driver.internal.util.DriverFactoryWithFixedRetryLogic;
 import org.neo4j.driver.internal.util.Futures;
-import org.neo4j.driver.internal.util.SleeplessClock;
 import org.neo4j.driver.net.ServerAddress;
 import org.neo4j.driver.net.ServerAddressResolver;
 import org.neo4j.driver.reactive.RxResult;
@@ -63,9 +60,7 @@
 import static org.hamcrest.core.IsEqual.equalTo;
 import static org.hamcrest.junit.MatcherAssert.assertThat;
 import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertThrows;
-import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.verify;
@@ -229,6 +224,8 @@ void shouldFailInitialDiscoveryWhenConfiguredResolverThrows()
         verify( resolver ).resolve( ServerAddress.of( "my.server.com", 9001 ) );
     }
 
+    // general error reporting and handling should be improved before this can be moved to testkit
+    // also, backend closes socket on general errors and it negatively impacts testkit's teardown process
     @Test
     void useSessionAfterDriverIsClosed() throws Exception
     {
@@ -256,45 +253,6 @@ void useSessionAfterDriverIsClosed() throws Exception
         }
     }
 
-    @Test
-    void shouldServerWithBoltV4SupportMultiDb() throws Throwable
-    {
-        StubServer server = stubController.startStub( "support_multidb_v4.script", 9001 );
-        try ( Driver driver = GraphDatabase.driver( "neo4j://localhost:9001", INSECURE_CONFIG ) )
-        {
-            assertTrue( driver.supportsMultiDb() );
-        }
-        finally
-        {
-            assertEquals( 0, server.exitStatus() );
-        }
-    }
-
-    @Test
-    void shouldServerWithBoltV3NotSupportMultiDb() throws Throwable
-    {
-        StubServer server = stubController.startStub( "support_multidb_v3.script", 9001 );
-        try ( Driver driver = GraphDatabase.driver( "neo4j://localhost:9001", INSECURE_CONFIG ) )
-        {
-            assertFalse( driver.supportsMultiDb() );
-        }
-        finally
-        {
-            assertEquals( 0, server.exitStatus() );
-        }
-    }
-
-    private static Driver newDriverWithSleeplessClock( String uriString, Config config )
-    {
-        DriverFactory driverFactory = new DriverFactoryWithClock( new SleeplessClock() );
-        return newDriver( uriString, driverFactory, config );
-    }
-
-    private static Driver newDriverWithSleeplessClock( String uriString )
-    {
-        return newDriverWithSleeplessClock( uriString, INSECURE_CONFIG );
-    }
-
     private static Driver newDriverWithFixedRetries( String uriString, int retries )
     {
         DriverFactory driverFactory = new DriverFactoryWithFixedRetryLogic( retries );
@@ -318,20 +276,6 @@ private static TransactionWork<List<Record>> queryWork( final String query, fina
         };
     }
 
-    private static List<String> readStrings( final String query, Session session )
-    {
-        return session.readTransaction( tx ->
-        {
-            List<Record> records = tx.run( query ).list();
-            List<String> names = new ArrayList<>( records.size() );
-            for ( Record record : records )
-            {
-                names.add( record.get( 0 ).asString() );
-            }
-            return names;
-        } );
-    }
-
     static class PortBasedServerAddressComparator implements Comparator<ServerAddress>
     {
         @Override

testkit-backend/src/main/java/neo4j/org/testkit/backend/messages/requests/CheckMultiDBSupport.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) "Neo4j"
+ * Neo4j Sweden AB [http://neo4j.com]
+ *
+ * This file is part of Neo4j.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package neo4j.org.testkit.backend.messages.requests;
+
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import neo4j.org.testkit.backend.TestkitState;
+import neo4j.org.testkit.backend.messages.responses.MultiDBSupport;
+import neo4j.org.testkit.backend.messages.responses.TestkitResponse;
+
+@Setter
+@Getter
+@NoArgsConstructor
+public class CheckMultiDBSupport implements TestkitRequest
+{
+    private CheckMultiDBSupportBody data;
+
+    @Override
+    public TestkitResponse process( TestkitState testkitState )
+    {
+        String driverId = data.getDriverId();
+        boolean available = testkitState.getDrivers().get( driverId ).supportsMultiDb();
+        return MultiDBSupport.builder().data( MultiDBSupport.MultiDBSupportBody.builder().available( available ).build() ).build();
+    }
+
+    @Setter
+    @Getter
+    @NoArgsConstructor
+    public static class CheckMultiDBSupportBody
+    {
+        private String driverId;
+    }
+}

testkit-backend/src/main/java/neo4j/org/testkit/backend/messages/requests/TestkitRequest.java

@@ -33,7 +33,7 @@
         @JsonSubTypes.Type( TransactionRun.class ), @JsonSubTypes.Type( RetryablePositive.class ),
         @JsonSubTypes.Type( SessionBeginTransaction.class ), @JsonSubTypes.Type( TransactionCommit.class ),
         @JsonSubTypes.Type( SessionLastBookmarks.class ), @JsonSubTypes.Type( SessionWriteTransaction.class ),
-        @JsonSubTypes.Type( ResolverResolutionCompleted.class )
+        @JsonSubTypes.Type( ResolverResolutionCompleted.class ), @JsonSubTypes.Type( CheckMultiDBSupport.class )
 } )
 public interface TestkitRequest
 {

testkit-backend/src/main/java/neo4j/org/testkit/backend/messages/responses/MultiDBSupport.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) "Neo4j"
+ * Neo4j Sweden AB [http://neo4j.com]
+ *
+ * This file is part of Neo4j.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package neo4j.org.testkit.backend.messages.responses;
+
+import lombok.Builder;
+import lombok.Getter;
+import lombok.Setter;
+
+@Setter
+@Getter
+@Builder
+public class MultiDBSupport implements TestkitResponse
+{
+    private final MultiDBSupportBody data;
+
+    @Override
+    public String testkitName()
+    {
+        return "MultiDBSupport";
+    }
+
+    @Setter
+    @Getter
+    @Builder
+    public static class MultiDBSupportBody
+    {
+        private final String id;
+
+        private final boolean available;
+    }
+}