/*
 * Copyright 2000-2009 JetBrains s.r.o.
 *
 * 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.intellij.execution.testframework.sm.runner;

import com.intellij.testFramework.exceptionCases.AssertionErrorCase;
import com.intellij.util.SystemProperties;

/**
 * @author Roman Chernyatchik
 */
public class TestSuiteStackTest extends BaseSMTRunnerTestCase {
  private TestSuiteStack myTestSuiteStack;

  @Override
  protected void setUp() throws Exception {
    super.setUp();

    myTestSuiteStack = new TestSuiteStack();
  }

  @Override
  protected void tearDown() throws Exception {
    disableDebugMode();
    
    super.tearDown();
  }

  public void testPushSuite() {
    myTestSuiteStack.pushSuite(mySuite);
    assertEquals(1, myTestSuiteStack.getStackSize());
    assertEquals(mySuite, myTestSuiteStack.getCurrentSuite());

    myTestSuiteStack.pushSuite(mySuite);
    assertEquals(2, myTestSuiteStack.getStackSize());
    assertEquals(mySuite, myTestSuiteStack.getCurrentSuite());

    final SMTestProxy newSuite = createSuiteProxy();
    myTestSuiteStack.pushSuite(newSuite);
    assertEquals(3, myTestSuiteStack.getStackSize());
    assertEquals(newSuite, myTestSuiteStack.getCurrentSuite());
  }

  public void testGetStackSize() {
    assertEquals(0, myTestSuiteStack.getStackSize());

    myTestSuiteStack.pushSuite(mySuite);
    assertEquals(1, myTestSuiteStack.getStackSize());

    myTestSuiteStack.popSuite(mySuite.getName());
    assertEquals(0, myTestSuiteStack.getStackSize());
  }

  public void testGetCurrentSuite() {
    assertNull(myTestSuiteStack.getCurrentSuite());

    myTestSuiteStack.pushSuite(mySuite);
    assertEquals(mySuite, myTestSuiteStack.getCurrentSuite());
  }

  public void testPopEmptySuite_DebugMode() throws Throwable {
    // enable debug mode
    enableDebugMode();

    assertException(new AssertionErrorCase() {
      @Override
      public void tryClosure() {
        myTestSuiteStack.popSuite("some suite");
      }
    });
  }

  public void testPopEmptySuite_NormalMode() throws Throwable {
    assertNull(myTestSuiteStack.popSuite("some suite"));
  }

  public void testPopInconsistentSuite_DebugMode() throws Throwable {
    enableDebugMode();

    final String suiteName = mySuite.getName();

    myTestSuiteStack.pushSuite(createSuiteProxy("0"));
    myTestSuiteStack.pushSuite(mySuite);
    myTestSuiteStack.pushSuite(createSuiteProxy("2"));
    myTestSuiteStack.pushSuite(createSuiteProxy("3"));

    assertEquals(4, myTestSuiteStack.getStackSize());
    assertEquals("3", myTestSuiteStack.getCurrentSuite().getName());

    assertException(new AssertionErrorCase() {
      @Override
      public void tryClosure() {
        myTestSuiteStack.popSuite(suiteName);
      }
    });
    assertEquals(4, myTestSuiteStack.getStackSize());
  }

  public void testPopInconsistentSuite_NormalMode() throws Throwable {
    final String suiteName = mySuite.getName();

    myTestSuiteStack.pushSuite(createSuiteProxy("0"));
    myTestSuiteStack.pushSuite(mySuite);
    myTestSuiteStack.pushSuite(createSuiteProxy("2"));
    myTestSuiteStack.pushSuite(createSuiteProxy("3"));

    assertEquals(4, myTestSuiteStack.getStackSize());
    assertEquals("3", myTestSuiteStack.getCurrentSuite().getName());


    assertNotNull(myTestSuiteStack.popSuite(suiteName));
    assertEquals(1, myTestSuiteStack.getStackSize());
  }

  public void testPopSuite() throws Throwable {
    final String suiteName = mySuite.getName();

    myTestSuiteStack.pushSuite(mySuite);
    assertEquals(mySuite, myTestSuiteStack.popSuite(suiteName));
    assertEquals(0, myTestSuiteStack.getStackSize());
  }

  public void testGetSuitePath() {
    assertEmpty(myTestSuiteStack.getSuitePath());

    myTestSuiteStack.pushSuite(createSuiteProxy("1"));
    myTestSuiteStack.pushSuite(createSuiteProxy("2"));
    myTestSuiteStack.pushSuite(createSuiteProxy("3"));

    assertSameElements(myTestSuiteStack.getSuitePath(), "1", "2", "3");
  }

  public void testGetSuitePathPresentation() {
    assertEquals("empty", myTestSuiteStack.getSuitePathPresentation());

    myTestSuiteStack.pushSuite(createSuiteProxy("1"));
    myTestSuiteStack.pushSuite(createSuiteProxy("2"));
    myTestSuiteStack.pushSuite(createSuiteProxy("3"));

    assertEquals("[1]->[2]->[3]", myTestSuiteStack.getSuitePathPresentation());    
  }

  public void testClear() {
    myTestSuiteStack.pushSuite(createSuiteProxy("1"));
    myTestSuiteStack.pushSuite(createSuiteProxy("2"));
    myTestSuiteStack.pushSuite(createSuiteProxy("3"));
    myTestSuiteStack.clear();

    assertEquals(0, myTestSuiteStack.getStackSize());
  }

  public void testIsEmpty() {
    assertTrue(myTestSuiteStack.isEmpty());

    myTestSuiteStack.pushSuite(createSuiteProxy("1"));
    assertFalse(myTestSuiteStack.isEmpty());

    myTestSuiteStack.popSuite("1");
    assertTrue(myTestSuiteStack.isEmpty());

    myTestSuiteStack.pushSuite(createSuiteProxy("1"));
    myTestSuiteStack.pushSuite(createSuiteProxy("2"));
    myTestSuiteStack.clear();
    assertTrue(myTestSuiteStack.isEmpty());    
  }

  private static void enableDebugMode() {
    // enable debug mode
    System.setProperty("idea.smrunner.debug", "true");
  }
  private static void disableDebugMode() {
    // enable debug mode
    System.setProperty("idea.smrunner.debug", "false");
  }
}