PropertyStoreTest.java

/*
   Copyright (c) 2012 LinkedIn Corp.

   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 com.linkedin.d2.discovery.stores;

import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNull;
import static org.testng.Assert.fail;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;

import org.testng.annotations.Test;

import com.linkedin.d2.discovery.event.PropertyEventThread.PropertyEventShutdownCallback;

public abstract class PropertyStoreTest
{
  public abstract PropertyStore<String> getStore() throws PropertyStoreException;

  @Test(groups = { "small", "back-end" })
  public void testPutGet() throws PropertyStoreException
  {
    PropertyStore<String> store = getStore();

    assertNull(store.get("test"));

    store.put("test", "exists");

    assertEquals(store.get("test"), "exists");
  }

  @Test(groups = { "small", "back-end" })
  public void testPutRemove() throws PropertyStoreException
  {
    PropertyStore<String> store = getStore();

    assertNull(store.get("test"));

    store.put("test", "exists");

    assertEquals(store.get("test"), "exists");

    store.remove("test");
    store.remove("empty");

    assertNull(store.get("test"));
    assertNull(store.get("empty"));
  }

  @Test(groups = { "small", "back-end" })
  public void testShutdown() throws InterruptedException,
      PropertyStoreException
  {
    PropertyStore<String> store = getStore();

    final CountDownLatch latch = new CountDownLatch(1);

    store.shutdown(new PropertyEventShutdownCallback()
    {
      @Override
      public void done()
      {
        latch.countDown();
      }
    });

    if (!latch.await(5, TimeUnit.SECONDS))
    {
      fail("unable to shut down store");
    }
  }
}