Added Unit test for Issue Java Core 1069

Note: This test could not reproduce the issue.

Author: hideki

src/androidTest/java/com/couchbase/lite/syncgateway/TenReplicationsTest.java

@@ -0,0 +1,79 @@
+/**
+ * Created by hideki on 2/29/16.
+ * <p/>
+ * Copyright (c) 2015 Couchbase, Inc All rights reserved.
+ * <p/>
+ * 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
+ * <p/>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p/>
+ * 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 com.couchbase.lite.syncgateway;
+
+import com.couchbase.lite.LiteTestCaseWithDB;
+import com.couchbase.lite.replicator.Replication;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
+public class TenReplicationsTest extends LiteTestCaseWithDB {
+    public static final String TAG = "TenReplicationsTest";
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+
+        if (!syncgatewayTestsEnabled()) {
+            return;
+        }
+    }
+
+    public void testStopAllReplsAndDeleteDB() throws Exception {
+        if (!syncgatewayTestsEnabled()) {
+            return;
+        }
+
+        // create 10 repls with different filter and wait till all becomes idle state
+        final int NUM_REPLS = 10;
+        List<Replication> repls = new ArrayList<Replication>(NUM_REPLS);
+        for (int i = 0; i < NUM_REPLS; i++) {
+            Replication repl;
+            if (i % 2 == 0)
+                repl = database.createPushReplication(getReplicationURL());
+            else
+                repl = database.createPullReplication(getReplicationURL());
+            repl.setContinuous(true);
+
+            repl.setFilter("foo/bar" + i);
+            Map<String, Object> params = new HashMap<String, Object>();
+            params.put("value", i);
+            repl.setFilterParams(params);
+
+            final CountDownLatch idle = new CountDownLatch(1);
+            repl.addChangeListener(new ReplicationIdleObserver(idle));
+            repl.start();
+            assertTrue(idle.await(10, TimeUnit.SECONDS));
+        }
+
+        // make sure if 10 repls are active
+        assertEquals(NUM_REPLS, database.getActiveReplications().size());
+
+        // stop all repls by repl.stop()
+        for (final Replication repl : repls)
+            repl.stop();
+        // delete db and measure elapsed time
+        long start = System.currentTimeMillis();
+        database.delete();
+        assertTrue((System.currentTimeMillis() - start) / 1000 < 30);
+    }
+}