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Testing framework for Java
There is a newer version: 7.10.2
package org.testng;

import java.io.Serializable;

/**
 * This class represents a test class:
 * 
 *  The test methods
 * 
The configuration methods (test and method)
 * 
The class file
 * 
 *
 * Note that the methods returned by instances of this class
 * are expected to be correct at runtime.  In other words,
 * they might differ from what the ITestMethodFinder returned
 * since ITestClass will take into account the groups being
 * included and excluded.
 *
 * @author Cedric Beust
 */
public interface ITestClass extends IClass, Serializable {

  /**
   * Returns all the instances the methods will be invoked upon.
   * This will typically be an array of one object in the absence
   * of a @Factory annotation.
   *
   * @param reuse flag if a new set of instances must be returned
   *  (if set to false)
   * @return All the instances the methods will be invoked upon.
   *
   * {@inheritDoc}
   */
  @Override
  Object[] getInstances(boolean reuse);

  /**
   * TODO cquezel JavaDoc.
   *
   * {@inheritDoc}
   */
  @Override
  long[] getInstanceHashCodes();

  /**
   * @return The number of instances used in this class.  This method
   * is needed for serialization since we don't know ahead of time if the
   * instances of the test classes will be serializable.
   */
  @Override
  int getInstanceCount();

  /**
   * Returns all the applicable test methods.
   * @return All the applicable test methods.
   */
  ITestNGMethod[] getTestMethods();

  /**
   * Returns all the methods that should be invoked
   * before a test method is invoked.
   * @return All the methods that should be invoked
   * before a test method is invoked.
   */
  ITestNGMethod[] getBeforeTestMethods();

  /**
   * Returns all the methods that should be invoked
   * after a test method completes.
   * @return All the methods that should be invoked
   * after a test method completes.
   */
  ITestNGMethod[] getAfterTestMethods();

  /**
   * Return all the methods that should be invoked
   * after the test class has been created and before
   * any of its test methods is invoked.
   * @return All the methods that should be invoked
   * after the test class has been created and before
   * any of its test methods is invoked.
   */
  ITestNGMethod[] getBeforeClassMethods();

  /**
   * Returns all the methods that should be invoked
   * after all the tests have been run on this class.
   * @return All the methods that should be invoked
   * after all the tests have been run on this class.
   */
  ITestNGMethod[] getAfterClassMethods();

  /**
   * Returns All the methods that should be invoked
   * before the suite is run.
   * @return All the methods that should be invoked
   * before the suite is run.
   */
  ITestNGMethod[] getBeforeSuiteMethods();

  /**
   * Returns all the methods that should be invoked
   * after the suite has run.
   * @return All the methods that should be invoked
   * after the suite has run.
   */
  ITestNGMethod[] getAfterSuiteMethods();

  /**
   * Returns all @Configuration methods that should be invoked before any others in the
   * current test.
   * @return all @Configuration methods that should be invoked before any others in the current test.
   */
  ITestNGMethod[] getBeforeTestConfigurationMethods();

  /**
   * Returns all @Configuration methods that should be invoked last before any others
   * in the current test.
   * @return all @Configuration methods that should be invoked last before any others
   * in the current test.
   */
  ITestNGMethod[] getAfterTestConfigurationMethods();

  /**
   * Returns all @Configuration methods that should be invoked before certain groups.
   * @return all @Configuration methods that should be invoked before certain groups.
   */
  ITestNGMethod[] getBeforeGroupsMethods();

  /**
   * Returns all @Configuration methods that should be invoked after certain groups.
   * @return all @Configuration methods that should be invoked after certain groups.
   */
  ITestNGMethod[] getAfterGroupsMethods();
}