/*
 * Licensed to the Apache Software Foundation (ASF) under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional information regarding
 * copyright ownership. The ASF licenses this file to You 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 org.apache.geode.test.dunit.tests;

import static org.assertj.core.api.Assertions.*;

import org.junit.Test;
import org.junit.experimental.categories.Category;

import org.apache.geode.internal.cache.GemFireCacheImpl;
import org.apache.geode.test.dunit.Host;
import org.apache.geode.test.dunit.internal.JUnit4DistributedTestCase;
import org.apache.geode.test.junit.categories.DistributedTest;

@Category(DistributedTest.class)
@SuppressWarnings("serial")
public class JUnit4GetDefaultDiskStoreNameDUnitTest extends JUnit4DistributedTestCase {

  @Test
  public void testGetTestMethodName() {
    String expected = createDefaultDiskStoreName(0, -1, "testGetTestMethodName");
    assertGetDefaultDiskStoreName(expected);
  }

  @Test
  public void testGetTestMethodNameChanges() {
    String expected = createDefaultDiskStoreName(0, -1, "testGetTestMethodNameChanges");
    assertGetDefaultDiskStoreName(expected);
  }

  @Test
  public void testGetTestMethodNameInAllVMs() {
    String expected = createDefaultDiskStoreName(0, -1, "testGetTestMethodNameInAllVMs");
    assertGetDefaultDiskStoreName(expected);

    for (int vmIndex = 0; vmIndex < Host.getHost(0).getVMCount(); vmIndex++) {
      String expectedInVM = createDefaultDiskStoreName(0, vmIndex, "testGetTestMethodNameInAllVMs");
      Host.getHost(0).getVM(vmIndex).invoke(() -> assertGetDefaultDiskStoreName(expectedInVM));
    }
  }

  private void assertGetDefaultDiskStoreName(final String expected) {
    assertThat(getDefaultDiskStoreName()).isEqualTo(expected);
  }

  private String createDefaultDiskStoreName(final int hostIndex, final int vmIndex,
      final String methodName) {
    return "DiskStore-" + hostIndex + "-" + vmIndex + "-" + getClass().getCanonicalName() + "."
        + methodName;
  }

  private String getDefaultDiskStoreName() {
    return GemFireCacheImpl.getDefaultDiskStoreName(); // TODO: not thread safe
  }
}
