Changes to speed up tests.

Change-Id: I1830f564710b9cb06d9c41d31e31854a272fbf4d
diff --git a/core/store/primitives/src/test/java/org/onosproject/store/primitives/resources/impl/AtomixTestBase.java b/core/store/primitives/src/test/java/org/onosproject/store/primitives/resources/impl/AtomixTestBase.java
index 01c33ec..db52ce9 100644
--- a/core/store/primitives/src/test/java/org/onosproject/store/primitives/resources/impl/AtomixTestBase.java
+++ b/core/store/primitives/src/test/java/org/onosproject/store/primitives/resources/impl/AtomixTestBase.java
@@ -27,8 +27,6 @@
 import io.atomix.copycat.server.storage.StorageLevel;
 import io.atomix.manager.internal.ResourceManagerState;
 import io.atomix.resource.ResourceType;
-import org.junit.After;
-import org.junit.Before;
 import org.onlab.junit.TestTools;
 import org.onosproject.store.primitives.impl.CatalystSerializers;
 
@@ -43,18 +41,18 @@
 import java.util.concurrent.atomic.AtomicInteger;
 
 /**
- * Base class for various Atomix* tests.
+ * Base class for various Atomix tests.
  */
 public abstract class AtomixTestBase {
-    private static final File TEST_DIR = new File("target/test-logs");
-    protected LocalServerRegistry registry;
-    protected final AtomicInteger port = new AtomicInteger(49200);
-    protected List<Address> members;
-    protected List<CopycatClient> copycatClients = new ArrayList<>();
-    protected List<CopycatServer> copycatServers = new ArrayList<>();
-    protected List<AtomixClient> atomixClients = new ArrayList<>();
-    protected List<CopycatServer> atomixServers = new ArrayList<>();
-    protected Serializer serializer = CatalystSerializers.getSerializer();
+    protected static File testDir;
+    protected static LocalServerRegistry registry = new LocalServerRegistry();
+    protected static List<Address> members = new ArrayList<>();
+    protected static List<CopycatClient> copycatClients = new ArrayList<>();
+    protected static List<CopycatServer> copycatServers = new ArrayList<>();
+    protected static List<AtomixClient> atomixClients = new ArrayList<>();
+    protected static List<CopycatServer> atomixServers = new ArrayList<>();
+    protected static Serializer serializer = CatalystSerializers.getSerializer();
+    protected static AtomicInteger port = new AtomicInteger(49200);
 
     /**
      * Creates a new resource state machine.
@@ -68,7 +66,7 @@
      *
      * @return The next server address.
      */
-    private Address nextAddress() {
+    private static Address nextAddress() {
         Address address = new Address("127.0.0.1",
                           TestTools.findAvailablePort(port.getAndIncrement()));
         members.add(address);
@@ -78,7 +76,8 @@
     /**
      * Creates a set of Copycat servers.
      */
-    protected List<CopycatServer> createCopycatServers(int nodes) throws Throwable {
+    protected static List<CopycatServer> createCopycatServers(int nodes)
+            throws Throwable {
         CountDownLatch latch = new CountDownLatch(nodes);
         List<CopycatServer> servers = new ArrayList<>();
 
@@ -91,20 +90,18 @@
             if (members.size() <= 1) {
                 server.bootstrap().thenRun(latch::countDown).join();
             } else {
-                server.join(members).thenRun(latch::countDown);
+                server.join(members).join();
             }
             servers.add(server);
         }
 
-        Uninterruptibles.awaitUninterruptibly(latch);
-
         return servers;
     }
 
     /**
      * Creates a Copycat server.
      */
-    protected CopycatServer createCopycatServer(Address address) {
+    protected static CopycatServer createCopycatServer(Address address) {
         CopycatServer server = CopycatServer.builder(address)
                 .withTransport(NettyTransport.builder().withThreads(1).build())
                 .withStorage(Storage.builder()
@@ -120,23 +117,21 @@
         return server;
     }
 
-    @Before
-    @After
-    public void clearTests() throws Exception {
+    public static void clearTests() throws Exception {
         registry = new LocalServerRegistry();
         members = new ArrayList<>();
 
         CompletableFuture<Void> closeClients =
                 CompletableFuture.allOf(atomixClients.stream()
-                                                     .map(AtomixClient::close)
-                                                     .toArray(CompletableFuture[]::new));
+                                         .map(AtomixClient::close)
+                                         .toArray(CompletableFuture[]::new));
 
-        closeClients.thenCompose(v -> CompletableFuture.allOf(copycatServers.stream()
+        closeClients
+                .thenCompose(v -> CompletableFuture
+                        .allOf(copycatServers.stream()
                 .map(CopycatServer::shutdown)
                 .toArray(CompletableFuture[]::new))).join();
 
-        deleteDirectory(TEST_DIR);
-
         atomixClients = new ArrayList<>();
 
         copycatServers = new ArrayList<>();