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Testing framework for Java

There is a newer version: 7.10.2

package org.testng.junit;

import java.lang.reflect.Modifier;
import org.testng.internal.Utils;
import org.testng.internal.objects.InstanceCreator;

/**
 * @deprecated - Support for running JUnit tests stands deprecated as of TestNG 7.7.0
 */
@Deprecated
public final class JUnitTestFinder {

  private static final String JUNIT3_TEST = "junit.framework.Test";
  private static final String JUNIT3_FINDER = "org.testng.junit.JUnit3TestRecognizer";
  private static final String JUNIT4_TEST = "org.junit.Test";
  private static final String JUNIT4_FINDER = "org.testng.junit.JUnit4TestRecognizer";
  private static final JUnitTestRecognizer junit3;
  private static final JUnitTestRecognizer junit4;

  static {
    junit3 = getJUnitTestRecognizer(JUNIT3_TEST, JUNIT3_FINDER);
    junit4 = getJUnitTestRecognizer(JUNIT4_TEST, JUNIT4_FINDER);
    if (junit3 == null) {
      Utils.log("JUnitTestFinder", 2, "JUnit3 was not found on the classpath");
    }
    if (junit4 == null) {
      Utils.log("JUnitTestFinder", 2, "JUnit4 was not found on the classpath");
    }
  }

  public static boolean isJUnitTest(Class c) {
    if (!haveJUnit()) {
      return false;
    }
    // only public classes are interesting, so filter out the rest
    if (!Modifier.isPublic(c.getModifiers()) || c.isInterface() || c.isAnnotation() || c.isEnum()) {
      return false;
    }
    return (junit3 != null && junit3.isTest(c)) || (junit4 != null && junit4.isTest(c));
  }

  private static boolean haveJUnit() {
    return junit3 != null || junit4 != null;
  }

  private static JUnitTestRecognizer getJUnitTestRecognizer(String test, String name) {
    try {
      Class.forName(test);
      return InstanceCreator.newInstance(name);
    } catch (Throwable t) {
      // ignore
      return null;
    }
  }
}