test-runner/android/test/TestRunner.java - platform/frameworks/base - Gitiles

 /*
  * Copyright (C) 2006 The Android Open Source Project
  *
  * 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 android.test;

 import android.content.Context;
 import android.util.Log;
 import android.os.Debug;
 import android.os.SystemClock;

 import java.io.File;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
 import java.util.ArrayList;
 import java.util.List;

 import junit.framework.TestSuite;
 import junit.framework.TestListener;
 import junit.framework.Test;
 import junit.framework.TestResult;
 import com.google.android.collect.Lists;

 /**
  * Support class that actually runs a test. Android uses this class,
  * and you probably will not need to instantiate, extend, or call this
  * class yourself. See the full {@link android.test} package description
  * to learn more about testing Android applications.
  *
  * {@hide} Not needed for 1.0 SDK.
  */
 public class TestRunner implements PerformanceTestCase.Intermediates {
     public static final int REGRESSION = 0;
     public static final int PERFORMANCE = 1;
     public static final int PROFILING = 2;

     public static final int CLEARSCREEN = 0;
     private static final String TAG = "TestHarness";
     private Context mContext;

     private int mMode = REGRESSION;

     private List<Listener> mListeners = Lists.newArrayList();
     private int mPassed;
     private int mFailed;

     private int mInternalIterations;
     private long mStartTime;
     private long mEndTime;

     private String mClassName;

     List<IntermediateTime> mIntermediates = null;

     private static Class mRunnableClass;
     private static Class mJUnitClass;

     static {
         try {
             mRunnableClass = Class.forName("java.lang.Runnable", false, null);
             mJUnitClass = Class.forName("junit.framework.TestCase", false, null);
         } catch (ClassNotFoundException ex) {
             throw new RuntimeException("shouldn't happen", ex);
         }
     }

     public class JunitTestSuite extends TestSuite implements TestListener {
         boolean mError = false;

         public JunitTestSuite() {
             super();
         }

         public void run(TestResult result) {
             result.addListener(this);
             super.run(result);
             result.removeListener(this);
         }

         /**
          * Implemented method of the interface TestListener which will listen for the
          * start of a test.
          *
          * @param test
          */
         public void startTest(Test test) {
             started(test.toString());
         }

         /**
          * Implemented method of the interface TestListener which will listen for the
          * end of the test.
          *
          * @param test
          */
         public void endTest(Test test) {
             finished(test.toString());
             if (!mError) {
                 passed(test.toString());
             }
         }

         /**
          * Implemented method of the interface TestListener which will listen for an
          * mError while running the test.
          *
          * @param test
          */
         public void addError(Test test, Throwable t) {
             mError = true;
             failed(test.toString(), t);
         }

         public void addFailure(Test test, junit.framework.AssertionFailedError t) {
             mError = true;
             failed(test.toString(), t);
         }
     }

     /**
      * Listener.performance() 'intermediates' argument is a list of these.
      */
     public static class IntermediateTime {
         public IntermediateTime(String name, long timeInNS) {
             this.name = name;
             this.timeInNS = timeInNS;
         }

         public String name;
         public long timeInNS;
     }

     /**
      * Support class that receives status on test progress. You should not need to
      * extend this interface yourself.
      */
     public interface Listener {
         void started(String className);
         void finished(String className);
         void performance(String className,
                 long itemTimeNS, int iterations,
                 List<IntermediateTime> itermediates);
         void passed(String className);
         void failed(String className, Throwable execption);
     }

     public TestRunner(Context context) {
         mContext = context;
     }

     public void addListener(Listener listener) {
         mListeners.add(listener);
     }

     public void startProfiling() {
         File file = new File("/tmp/trace");
         file.mkdir();
         String base = "/tmp/trace/" + mClassName + ".dmtrace";
         Debug.startMethodTracing(base, 8 * 1024 * 1024);
     }

     public void finishProfiling() {
         Debug.stopMethodTracing();
     }

     private void started(String className) {

         int count = mListeners.size();
         for (int i = 0; i < count; i++) {
             mListeners.get(i).started(className);
         }
     }

     private void finished(String className) {
         int count = mListeners.size();
         for (int i = 0; i < count; i++) {
             mListeners.get(i).finished(className);
         }
     }

     private void performance(String className,
             long itemTimeNS,
             int iterations,
             List<IntermediateTime> intermediates) {
         int count = mListeners.size();
         for (int i = 0; i < count; i++) {
             mListeners.get(i).performance(className,
                     itemTimeNS,
                     iterations,
                     intermediates);
         }
     }

     public void passed(String className) {
         mPassed++;
         int count = mListeners.size();
         for (int i = 0; i < count; i++) {
             mListeners.get(i).passed(className);
         }
     }

     public void failed(String className, Throwable exception) {
         mFailed++;
         int count = mListeners.size();
         for (int i = 0; i < count; i++) {
             mListeners.get(i).failed(className, exception);
         }
     }

     public int passedCount() {
         return mPassed;
     }

     public int failedCount() {
         return mFailed;
     }

     public void run(String[] classes) {
         for (String cl : classes) {
             run(cl);
         }
     }

     public void setInternalIterations(int count) {
         mInternalIterations = count;
     }

     public void startTiming(boolean realTime) {
         if (realTime) {
             mStartTime = System.currentTimeMillis();
         } else {
             mStartTime = SystemClock.currentThreadTimeMillis();
         }
     }

     public void addIntermediate(String name) {
         addIntermediate(name, (System.currentTimeMillis() - mStartTime) * 1000000);
     }

     public void addIntermediate(String name, long timeInNS) {
         mIntermediates.add(new IntermediateTime(name, timeInNS));
     }

     public void finishTiming(boolean realTime) {
         if (realTime) {
             mEndTime = System.currentTimeMillis();
         } else {
             mEndTime = SystemClock.currentThreadTimeMillis();
         }
     }

     public void setPerformanceMode(int mode) {
         mMode = mode;
     }

     private void missingTest(String className, Throwable e) {
         started(className);
         finished(className);
         failed(className, e);
     }

     /*
     This class determines if more suites are added to this class then adds all individual
     test classes to a test suite for run
      */
     public void run(String className) {
         try {
             mClassName = className;
             Class clazz = mContext.getClassLoader().loadClass(className);
             Method method = getChildrenMethod(clazz);
             if (method != null) {
                 String[] children = getChildren(method);
                 run(children);
             } else if (mRunnableClass.isAssignableFrom(clazz)) {
                 Runnable test = (Runnable) clazz.newInstance();
                 TestCase testcase = null;
                 if (test instanceof TestCase) {
                     testcase = (TestCase) test;
                 }
                 Throwable e = null;
                 boolean didSetup = false;
                 started(className);
                 try {
                     if (testcase != null) {
                         testcase.setUp(mContext);
                         didSetup = true;
                     }
                     if (mMode == PERFORMANCE) {
                         runInPerformanceMode(test, className, false, className);
                     } else if (mMode == PROFILING) {
                         //Need a way to mark a test to be run in profiling mode or not.
                         startProfiling();
                         test.run();
                         finishProfiling();
                     } else {
                         test.run();
                     }
                 } catch (Throwable ex) {
                     e = ex;
                 }
                 if (testcase != null && didSetup) {
                     try {
                         testcase.tearDown();
                     } catch (Throwable ex) {
                         e = ex;
                     }
                 }
                 finished(className);
                 if (e == null) {
                     passed(className);
                 } else {
                     failed(className, e);
                 }
             } else if (mJUnitClass.isAssignableFrom(clazz)) {
                 Throwable e = null;
                 //Create a Junit Suite.
                 JunitTestSuite suite = new JunitTestSuite();
                 Method[] methods = getAllTestMethods(clazz);
                 for (Method m : methods) {
                     junit.framework.TestCase test = (junit.framework.TestCase) clazz.newInstance();
                     test.setName(m.getName());

                     if (test instanceof AndroidTestCase) {
                         AndroidTestCase testcase = (AndroidTestCase) test;
                         try {
                             testcase.setContext(mContext);
                         } catch (Exception ex) {
                             Log.i("TestHarness", ex.toString());
                         }
                     }
                     suite.addTest(test);
                 }
                 if (mMode == PERFORMANCE) {
                     final int testCount = suite.testCount();

                     for (int j = 0; j < testCount; j++) {
                         Test test = suite.testAt(j);
                         started(test.toString());
                         try {
                             runInPerformanceMode(test, className, true, test.toString());
                         } catch (Throwable ex) {
                             e = ex;
                         }
                         finished(test.toString());
                         if (e == null) {
                             passed(test.toString());
                         } else {
                             failed(test.toString(), e);
                         }
                     }
                 } else if (mMode == PROFILING) {
                     //Need a way to mark a test to be run in profiling mode or not.
                     startProfiling();
                     junit.textui.TestRunner.run(suite);
                     finishProfiling();
                 } else {
                     junit.textui.TestRunner.run(suite);
                 }
             } else {
                 System.out.println("Test wasn't Runnable and didn't have a"
                         + " children method: " + className);
             }
         } catch (ClassNotFoundException e) {
             Log.e("ClassNotFoundException for " + className, e.toString());
             if (isJunitTest(className)) {
                 runSingleJunitTest(className);
             } else {
                 missingTest(className, e);
             }
         } catch (InstantiationException e) {
             System.out.println("InstantiationException for " + className);
             missingTest(className, e);
         } catch (IllegalAccessException e) {
             System.out.println("IllegalAccessException for " + className);
             missingTest(className, e);
         }
     }

     public void runInPerformanceMode(Object testCase, String className, boolean junitTest,
             String testNameInDb) throws Exception {
         boolean increaseIterations = true;
         int iterations = 1;
         long duration = 0;
         mIntermediates = null;

         mInternalIterations = 1;
         Class clazz = mContext.getClassLoader().loadClass(className);
         Object perftest = clazz.newInstance();

         PerformanceTestCase perftestcase = null;
         if (perftest instanceof PerformanceTestCase) {
             perftestcase = (PerformanceTestCase) perftest;
             // only run the test if it is not marked as a performance only test
             if (mMode == REGRESSION && perftestcase.isPerformanceOnly()) return;
         }

         // First force GCs, to avoid GCs happening during out
         // test and skewing its time.
         Runtime.getRuntime().runFinalization();
         Runtime.getRuntime().gc();

         if (perftestcase != null) {
             mIntermediates = new ArrayList<IntermediateTime>();
             iterations = perftestcase.startPerformance(this);
             if (iterations > 0) {
                 increaseIterations = false;
             } else {
                 iterations = 1;
             }
         }

         // Pause briefly to let things settle down...
         Thread.sleep(1000);
         do {
             mEndTime = 0;
             if (increaseIterations) {
                 // Test case does not implement
                 // PerformanceTestCase or returned 0 iterations,
                 // so we take care of measure the whole test time.
                 mStartTime = SystemClock.currentThreadTimeMillis();
             } else {
                 // Try to make it obvious if the test case
                 // doesn't call startTiming().
                 mStartTime = 0;
             }

             if (junitTest) {
                 for (int i = 0; i < iterations; i++) {
                     junit.textui.TestRunner.run((junit.framework.Test) testCase);
                 }
             } else {
                 Runnable test = (Runnable) testCase;
                 for (int i = 0; i < iterations; i++) {
                     test.run();
                 }
             }

             long endTime = mEndTime;
             if (endTime == 0) {
                 endTime = SystemClock.currentThreadTimeMillis();
             }

             duration = endTime - mStartTime;
             if (!increaseIterations) {
                 break;
             }
             if (duration <= 1) {
                 iterations *= 1000;
             } else if (duration <= 10) {
                 iterations *= 100;
             } else if (duration < 100) {
                 iterations *= 10;
             } else if (duration < 1000) {
                 iterations *= (int) ((1000 / duration) + 2);
             } else {
                 break;
             }
         } while (true);

         if (duration != 0) {
             iterations *= mInternalIterations;
             performance(testNameInDb, (duration * 1000000) / iterations,
                     iterations, mIntermediates);
         }
     }

     public void runSingleJunitTest(String className) {
         Throwable excep = null;
         int index = className.lastIndexOf('$');
         String testName = "";
         String originalClassName = className;
         if (index >= 0) {
             className = className.substring(0, index);
             testName = originalClassName.substring(index + 1);
         }
         try {
             Class clazz = mContext.getClassLoader().loadClass(className);
             if (mJUnitClass.isAssignableFrom(clazz)) {
                 junit.framework.TestCase test = (junit.framework.TestCase) clazz.newInstance();
                 JunitTestSuite newSuite = new JunitTestSuite();
                 test.setName(testName);

                 if (test instanceof AndroidTestCase) {
                     AndroidTestCase testcase = (AndroidTestCase) test;
                     try {
                         testcase.setContext(mContext);
                     } catch (Exception ex) {
                         Log.w(TAG, "Exception encountered while trying to set the context.", ex);
                     }
                 }
                 newSuite.addTest(test);

                 if (mMode == PERFORMANCE) {
                     try {
                         started(test.toString());
                         runInPerformanceMode(test, className, true, test.toString());
                         finished(test.toString());
                         if (excep == null) {
                             passed(test.toString());
                         } else {
                             failed(test.toString(), excep);
                         }
                     } catch (Throwable ex) {
                         excep = ex;
                     }

                 } else if (mMode == PROFILING) {
                     startProfiling();
                     junit.textui.TestRunner.run(newSuite);
                     finishProfiling();
                 } else {
                     junit.textui.TestRunner.run(newSuite);
                 }
             }
         } catch (ClassNotFoundException e) {
             Log.e("TestHarness", "No test case to run", e);
         } catch (IllegalAccessException e) {
             Log.e("TestHarness", "Illegal Access Exception", e);
         } catch (InstantiationException e) {
             Log.e("TestHarness", "Instantiation Exception", e);
         }
     }

     public static Method getChildrenMethod(Class clazz) {
         try {
             return clazz.getMethod("children", (Class[]) null);
         } catch (NoSuchMethodException e) {
         }

         return null;
     }

     public static Method getChildrenMethod(Context c, String className) {
         try {
             return getChildrenMethod(c.getClassLoader().loadClass(className));
         } catch (ClassNotFoundException e) {
         }
         return null;
     }

     public static String[] getChildren(Context c, String className) {
         Method m = getChildrenMethod(c, className);
         String[] testChildren = getTestChildren(c, className);
         if (m == null & testChildren == null) {
             throw new RuntimeException("couldn't get children method for "
                     + className);
         }
         if (m != null) {
             String[] children = getChildren(m);
             if (testChildren != null) {
                 String[] allChildren = new String[testChildren.length + children.length];
                 System.arraycopy(children, 0, allChildren, 0, children.length);
                 System.arraycopy(testChildren, 0, allChildren, children.length, testChildren.length);
                 return allChildren;
             } else {
                 return children;
             }
         } else {
             if (testChildren != null) {
                 return testChildren;
             }
         }
         return null;
     }

     public static String[] getChildren(Method m) {
         try {
             if (!Modifier.isStatic(m.getModifiers())) {
                 throw new RuntimeException("children method is not static");
             }
             return (String[]) m.invoke(null, (Object[]) null);
         } catch (IllegalAccessException e) {
         } catch (InvocationTargetException e) {
         }
         return new String[0];
     }

     public static String[] getTestChildren(Context c, String className) {
         try {
             Class clazz = c.getClassLoader().loadClass(className);

             if (mJUnitClass.isAssignableFrom(clazz)) {
                 return getTestChildren(clazz);
             }
         } catch (ClassNotFoundException e) {
             Log.e("TestHarness", "No class found", e);
         }
         return null;
     }

     public static String[] getTestChildren(Class clazz) {
         Method[] methods = getAllTestMethods(clazz);

         String[] onScreenTestNames = new String[methods.length];
         int index = 0;
         for (Method m : methods) {
             onScreenTestNames[index] = clazz.getName() + "$" + m.getName();
             index++;
         }
         return onScreenTestNames;
     }

     public static Method[] getAllTestMethods(Class clazz) {
         Method[] allMethods = clazz.getDeclaredMethods();
         int numOfMethods = 0;
         for (Method m : allMethods) {
             boolean mTrue = isTestMethod(m);
             if (mTrue) {
                 numOfMethods++;
             }
         }
         int index = 0;
         Method[] testMethods = new Method[numOfMethods];
         for (Method m : allMethods) {
             boolean mTrue = isTestMethod(m);
             if (mTrue) {
                 testMethods[index] = m;
                 index++;
             }
         }
         return testMethods;
     }

     private static boolean isTestMethod(Method m) {
         return m.getName().startsWith("test") &&
                 m.getReturnType() == void.class &&
                 m.getParameterTypes().length == 0;
     }

     public static int countJunitTests(Class clazz) {
         Method[] allTestMethods = getAllTestMethods(clazz);
         int numberofMethods = allTestMethods.length;

         return numberofMethods;
     }

     public static boolean isTestSuite(Context c, String className) {
         boolean childrenMethods = getChildrenMethod(c, className) != null;

         try {
             Class clazz = c.getClassLoader().loadClass(className);
             if (mJUnitClass.isAssignableFrom(clazz)) {
                 int numTests = countJunitTests(clazz);
                 if (numTests > 0)
                     childrenMethods = true;
             }
         } catch (ClassNotFoundException e) {
         }
         return childrenMethods;
     }


     public boolean isJunitTest(String className) {
         int index = className.lastIndexOf('$');
         if (index >= 0) {
             className = className.substring(0, index);
         }
         try {
             Class clazz = mContext.getClassLoader().loadClass(className);
             if (mJUnitClass.isAssignableFrom(clazz)) {
                 return true;
             }
         } catch (ClassNotFoundException e) {
         }
         return false;
     }

     /**
      * Returns the number of tests that will be run if you try to do this.
      */
     public static int countTests(Context c, String className) {
         try {
             Class clazz = c.getClassLoader().loadClass(className);
             Method method = getChildrenMethod(clazz);
             if (method != null) {

                 String[] children = getChildren(method);
                 int rv = 0;
                 for (String child : children) {
                     rv += countTests(c, child);
                 }
                 return rv;
             } else if (mRunnableClass.isAssignableFrom(clazz)) {
                 return 1;
             } else if (mJUnitClass.isAssignableFrom(clazz)) {
                 return countJunitTests(clazz);
             }
         } catch (ClassNotFoundException e) {
             return 1; // this gets the count right, because either this test
             // is missing, and it will fail when run or it is a single Junit test to be run.
         }
         return 0;
     }

     /**
      * Returns a title to display given the className of a test.
      * <p/>
      * <p>Currently this function just returns the portion of the
      * class name after the last '.'
      */
     public static String getTitle(String className) {
         int indexDot = className.lastIndexOf('.');
         int indexDollar = className.lastIndexOf('$');
         int index = indexDot > indexDollar ? indexDot : indexDollar;
         if (index >= 0) {
             className = className.substring(index + 1);
         }
         return className;
     }
 }
	/*
	* Copyright (C) 2006 The Android Open Source Project
	*
	* 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 android.test;

	import android.content.Context;
	import android.util.Log;
	import android.os.Debug;
	import android.os.SystemClock;

	import java.io.File;
	import java.lang.reflect.InvocationTargetException;
	import java.lang.reflect.Method;
	import java.lang.reflect.Modifier;
	import java.util.ArrayList;
	import java.util.List;

	import junit.framework.TestSuite;
	import junit.framework.TestListener;
	import junit.framework.Test;
	import junit.framework.TestResult;
	import com.google.android.collect.Lists;

	/**
	* Support class that actually runs a test. Android uses this class,
	* and you probably will not need to instantiate, extend, or call this
	* class yourself. See the full {@link android.test} package description
	* to learn more about testing Android applications.
	*
	* {@hide} Not needed for 1.0 SDK.
	*/
	public class TestRunner implements PerformanceTestCase.Intermediates {
	public static final int REGRESSION = 0;
	public static final int PERFORMANCE = 1;
	public static final int PROFILING = 2;

	public static final int CLEARSCREEN = 0;
	private static final String TAG = "TestHarness";
	private Context mContext;

	private int mMode = REGRESSION;

	private List<Listener> mListeners = Lists.newArrayList();
	private int mPassed;
	private int mFailed;

	private int mInternalIterations;
	private long mStartTime;
	private long mEndTime;

	private String mClassName;

	List<IntermediateTime> mIntermediates = null;

	private static Class mRunnableClass;
	private static Class mJUnitClass;

	static {
	try {
	mRunnableClass = Class.forName("java.lang.Runnable", false, null);
	mJUnitClass = Class.forName("junit.framework.TestCase", false, null);
	} catch (ClassNotFoundException ex) {
	throw new RuntimeException("shouldn't happen", ex);
	}
	}

	public class JunitTestSuite extends TestSuite implements TestListener {
	boolean mError = false;

	public JunitTestSuite() {
	super();
	}

	public void run(TestResult result) {
	result.addListener(this);
	super.run(result);
	result.removeListener(this);
	}

	/**
	* Implemented method of the interface TestListener which will listen for the
	* start of a test.
	*
	* @param test
	*/
	public void startTest(Test test) {
	started(test.toString());
	}

	/**
	* Implemented method of the interface TestListener which will listen for the
	* end of the test.
	*
	* @param test
	*/
	public void endTest(Test test) {
	finished(test.toString());
	if (!mError) {
	passed(test.toString());
	}
	}

	/**
	* Implemented method of the interface TestListener which will listen for an
	* mError while running the test.
	*
	* @param test
	*/
	public void addError(Test test, Throwable t) {
	mError = true;
	failed(test.toString(), t);
	}

	public void addFailure(Test test, junit.framework.AssertionFailedError t) {
	mError = true;
	failed(test.toString(), t);
	}
	}

	/**
	* Listener.performance() 'intermediates' argument is a list of these.
	*/
	public static class IntermediateTime {
	public IntermediateTime(String name, long timeInNS) {
	this.name = name;
	this.timeInNS = timeInNS;
	}

	public String name;
	public long timeInNS;
	}

	/**
	* Support class that receives status on test progress. You should not need to
	* extend this interface yourself.
	*/
	public interface Listener {
	void started(String className);
	void finished(String className);
	void performance(String className,
	long itemTimeNS, int iterations,
	List<IntermediateTime> itermediates);
	void passed(String className);
	void failed(String className, Throwable execption);
	}

	public TestRunner(Context context) {
	mContext = context;
	}

	public void addListener(Listener listener) {
	mListeners.add(listener);
	}

	public void startProfiling() {
	File file = new File("/tmp/trace");
	file.mkdir();
	String base = "/tmp/trace/" + mClassName + ".dmtrace";
	Debug.startMethodTracing(base, 8 * 1024 * 1024);
	}

	public void finishProfiling() {
	Debug.stopMethodTracing();
	}

	private void started(String className) {

	int count = mListeners.size();
	for (int i = 0; i < count; i++) {
	mListeners.get(i).started(className);
	}
	}

	private void finished(String className) {
	int count = mListeners.size();
	for (int i = 0; i < count; i++) {
	mListeners.get(i).finished(className);
	}
	}

	private void performance(String className,
	long itemTimeNS,
	int iterations,
	List<IntermediateTime> intermediates) {
	int count = mListeners.size();
	for (int i = 0; i < count; i++) {
	mListeners.get(i).performance(className,
	itemTimeNS,
	iterations,
	intermediates);
	}
	}

	public void passed(String className) {
	mPassed++;
	int count = mListeners.size();
	for (int i = 0; i < count; i++) {
	mListeners.get(i).passed(className);
	}
	}

	public void failed(String className, Throwable exception) {
	mFailed++;
	int count = mListeners.size();
	for (int i = 0; i < count; i++) {
	mListeners.get(i).failed(className, exception);
	}
	}

	public int passedCount() {
	return mPassed;
	}

	public int failedCount() {
	return mFailed;
	}

	public void run(String[] classes) {
	for (String cl : classes) {
	run(cl);
	}
	}

	public void setInternalIterations(int count) {
	mInternalIterations = count;
	}

	public void startTiming(boolean realTime) {
	if (realTime) {
	mStartTime = System.currentTimeMillis();
	} else {
	mStartTime = SystemClock.currentThreadTimeMillis();
	}
	}

	public void addIntermediate(String name) {
	addIntermediate(name, (System.currentTimeMillis() - mStartTime) * 1000000);
	}

	public void addIntermediate(String name, long timeInNS) {
	mIntermediates.add(new IntermediateTime(name, timeInNS));
	}

	public void finishTiming(boolean realTime) {
	if (realTime) {
	mEndTime = System.currentTimeMillis();
	} else {
	mEndTime = SystemClock.currentThreadTimeMillis();
	}
	}

	public void setPerformanceMode(int mode) {
	mMode = mode;
	}

	private void missingTest(String className, Throwable e) {
	started(className);
	finished(className);
	failed(className, e);
	}

	/*
	This class determines if more suites are added to this class then adds all individual
	test classes to a test suite for run
	*/
	public void run(String className) {
	try {
	mClassName = className;
	Class clazz = mContext.getClassLoader().loadClass(className);
	Method method = getChildrenMethod(clazz);
	if (method != null) {
	String[] children = getChildren(method);
	run(children);
	} else if (mRunnableClass.isAssignableFrom(clazz)) {
	Runnable test = (Runnable) clazz.newInstance();
	TestCase testcase = null;
	if (test instanceof TestCase) {
	testcase = (TestCase) test;
	}
	Throwable e = null;
	boolean didSetup = false;
	started(className);
	try {
	if (testcase != null) {
	testcase.setUp(mContext);
	didSetup = true;
	}
	if (mMode == PERFORMANCE) {
	runInPerformanceMode(test, className, false, className);
	} else if (mMode == PROFILING) {
	//Need a way to mark a test to be run in profiling mode or not.
	startProfiling();
	test.run();
	finishProfiling();
	} else {
	test.run();
	}
	} catch (Throwable ex) {
	e = ex;
	}
	if (testcase != null && didSetup) {
	try {
	testcase.tearDown();
	} catch (Throwable ex) {
	e = ex;
	}
	}
	finished(className);
	if (e == null) {
	passed(className);
	} else {
	failed(className, e);
	}
	} else if (mJUnitClass.isAssignableFrom(clazz)) {
	Throwable e = null;
	//Create a Junit Suite.
	JunitTestSuite suite = new JunitTestSuite();
	Method[] methods = getAllTestMethods(clazz);
	for (Method m : methods) {
	junit.framework.TestCase test = (junit.framework.TestCase) clazz.newInstance();
	test.setName(m.getName());

	if (test instanceof AndroidTestCase) {
	AndroidTestCase testcase = (AndroidTestCase) test;
	try {
	testcase.setContext(mContext);
	} catch (Exception ex) {
	Log.i("TestHarness", ex.toString());
	}
	}
	suite.addTest(test);
	}
	if (mMode == PERFORMANCE) {
	final int testCount = suite.testCount();

	for (int j = 0; j < testCount; j++) {
	Test test = suite.testAt(j);
	started(test.toString());
	try {
	runInPerformanceMode(test, className, true, test.toString());
	} catch (Throwable ex) {
	e = ex;
	}
	finished(test.toString());
	if (e == null) {
	passed(test.toString());
	} else {
	failed(test.toString(), e);
	}
	}
	} else if (mMode == PROFILING) {
	//Need a way to mark a test to be run in profiling mode or not.
	startProfiling();
	junit.textui.TestRunner.run(suite);
	finishProfiling();
	} else {
	junit.textui.TestRunner.run(suite);
	}
	} else {
	System.out.println("Test wasn't Runnable and didn't have a"
	+ " children method: " + className);
	}
	} catch (ClassNotFoundException e) {
	Log.e("ClassNotFoundException for " + className, e.toString());
	if (isJunitTest(className)) {
	runSingleJunitTest(className);
	} else {
	missingTest(className, e);
	}
	} catch (InstantiationException e) {
	System.out.println("InstantiationException for " + className);
	missingTest(className, e);
	} catch (IllegalAccessException e) {
	System.out.println("IllegalAccessException for " + className);
	missingTest(className, e);
	}
	}

	public void runInPerformanceMode(Object testCase, String className, boolean junitTest,
	String testNameInDb) throws Exception {
	boolean increaseIterations = true;
	int iterations = 1;
	long duration = 0;
	mIntermediates = null;

	mInternalIterations = 1;
	Class clazz = mContext.getClassLoader().loadClass(className);
	Object perftest = clazz.newInstance();

	PerformanceTestCase perftestcase = null;
	if (perftest instanceof PerformanceTestCase) {
	perftestcase = (PerformanceTestCase) perftest;
	// only run the test if it is not marked as a performance only test
	if (mMode == REGRESSION && perftestcase.isPerformanceOnly()) return;
	}

	// First force GCs, to avoid GCs happening during out
	// test and skewing its time.
	Runtime.getRuntime().runFinalization();
	Runtime.getRuntime().gc();

	if (perftestcase != null) {
	mIntermediates = new ArrayList<IntermediateTime>();
	iterations = perftestcase.startPerformance(this);
	if (iterations > 0) {
	increaseIterations = false;
	} else {
	iterations = 1;
	}
	}

	// Pause briefly to let things settle down...
	Thread.sleep(1000);
	do {
	mEndTime = 0;
	if (increaseIterations) {
	// Test case does not implement
	// PerformanceTestCase or returned 0 iterations,
	// so we take care of measure the whole test time.
	mStartTime = SystemClock.currentThreadTimeMillis();
	} else {
	// Try to make it obvious if the test case
	// doesn't call startTiming().
	mStartTime = 0;
	}

	if (junitTest) {
	for (int i = 0; i < iterations; i++) {
	junit.textui.TestRunner.run((junit.framework.Test) testCase);
	}
	} else {
	Runnable test = (Runnable) testCase;
	for (int i = 0; i < iterations; i++) {
	test.run();
	}
	}

	long endTime = mEndTime;
	if (endTime == 0) {
	endTime = SystemClock.currentThreadTimeMillis();
	}

	duration = endTime - mStartTime;
	if (!increaseIterations) {
	break;
	}
	if (duration <= 1) {
	iterations *= 1000;
	} else if (duration <= 10) {
	iterations *= 100;
	} else if (duration < 100) {
	iterations *= 10;
	} else if (duration < 1000) {
	iterations *= (int) ((1000 / duration) + 2);
	} else {
	break;
	}
	} while (true);

	if (duration != 0) {
	iterations *= mInternalIterations;
	performance(testNameInDb, (duration * 1000000) / iterations,
	iterations, mIntermediates);
	}
	}

	public void runSingleJunitTest(String className) {
	Throwable excep = null;
	int index = className.lastIndexOf('$');
	String testName = "";
	String originalClassName = className;
	if (index >= 0) {
	className = className.substring(0, index);
	testName = originalClassName.substring(index + 1);
	}
	try {
	Class clazz = mContext.getClassLoader().loadClass(className);
	if (mJUnitClass.isAssignableFrom(clazz)) {
	junit.framework.TestCase test = (junit.framework.TestCase) clazz.newInstance();
	JunitTestSuite newSuite = new JunitTestSuite();
	test.setName(testName);

	if (test instanceof AndroidTestCase) {
	AndroidTestCase testcase = (AndroidTestCase) test;
	try {
	testcase.setContext(mContext);
	} catch (Exception ex) {
	Log.w(TAG, "Exception encountered while trying to set the context.", ex);
	}
	}
	newSuite.addTest(test);

	if (mMode == PERFORMANCE) {
	try {
	started(test.toString());
	runInPerformanceMode(test, className, true, test.toString());
	finished(test.toString());
	if (excep == null) {
	passed(test.toString());
	} else {
	failed(test.toString(), excep);
	}
	} catch (Throwable ex) {
	excep = ex;
	}

	} else if (mMode == PROFILING) {
	startProfiling();
	junit.textui.TestRunner.run(newSuite);
	finishProfiling();
	} else {
	junit.textui.TestRunner.run(newSuite);
	}
	}
	} catch (ClassNotFoundException e) {
	Log.e("TestHarness", "No test case to run", e);
	} catch (IllegalAccessException e) {
	Log.e("TestHarness", "Illegal Access Exception", e);
	} catch (InstantiationException e) {
	Log.e("TestHarness", "Instantiation Exception", e);
	}
	}

	public static Method getChildrenMethod(Class clazz) {
	try {
	return clazz.getMethod("children", (Class[]) null);
	} catch (NoSuchMethodException e) {
	}

	return null;
	}

	public static Method getChildrenMethod(Context c, String className) {
	try {
	return getChildrenMethod(c.getClassLoader().loadClass(className));
	} catch (ClassNotFoundException e) {
	}
	return null;
	}

	public static String[] getChildren(Context c, String className) {
	Method m = getChildrenMethod(c, className);
	String[] testChildren = getTestChildren(c, className);
	if (m == null & testChildren == null) {
	throw new RuntimeException("couldn't get children method for "
	+ className);
	}
	if (m != null) {
	String[] children = getChildren(m);
	if (testChildren != null) {
	String[] allChildren = new String[testChildren.length + children.length];
	System.arraycopy(children, 0, allChildren, 0, children.length);
	System.arraycopy(testChildren, 0, allChildren, children.length, testChildren.length);
	return allChildren;
	} else {
	return children;
	}
	} else {
	if (testChildren != null) {
	return testChildren;
	}
	}
	return null;
	}

	public static String[] getChildren(Method m) {
	try {
	if (!Modifier.isStatic(m.getModifiers())) {
	throw new RuntimeException("children method is not static");
	}
	return (String[]) m.invoke(null, (Object[]) null);
	} catch (IllegalAccessException e) {
	} catch (InvocationTargetException e) {
	}
	return new String[0];
	}

	public static String[] getTestChildren(Context c, String className) {
	try {
	Class clazz = c.getClassLoader().loadClass(className);

	if (mJUnitClass.isAssignableFrom(clazz)) {
	return getTestChildren(clazz);
	}
	} catch (ClassNotFoundException e) {
	Log.e("TestHarness", "No class found", e);
	}
	return null;
	}

	public static String[] getTestChildren(Class clazz) {
	Method[] methods = getAllTestMethods(clazz);

	String[] onScreenTestNames = new String[methods.length];
	int index = 0;
	for (Method m : methods) {
	onScreenTestNames[index] = clazz.getName() + "$" + m.getName();
	index++;
	}
	return onScreenTestNames;
	}

	public static Method[] getAllTestMethods(Class clazz) {
	Method[] allMethods = clazz.getDeclaredMethods();
	int numOfMethods = 0;
	for (Method m : allMethods) {
	boolean mTrue = isTestMethod(m);
	if (mTrue) {
	numOfMethods++;
	}
	}
	int index = 0;
	Method[] testMethods = new Method[numOfMethods];
	for (Method m : allMethods) {
	boolean mTrue = isTestMethod(m);
	if (mTrue) {
	testMethods[index] = m;
	index++;
	}
	}
	return testMethods;
	}

	private static boolean isTestMethod(Method m) {
	return m.getName().startsWith("test") &&
	m.getReturnType() == void.class &&
	m.getParameterTypes().length == 0;
	}

	public static int countJunitTests(Class clazz) {
	Method[] allTestMethods = getAllTestMethods(clazz);
	int numberofMethods = allTestMethods.length;

	return numberofMethods;
	}

	public static boolean isTestSuite(Context c, String className) {
	boolean childrenMethods = getChildrenMethod(c, className) != null;

	try {
	Class clazz = c.getClassLoader().loadClass(className);
	if (mJUnitClass.isAssignableFrom(clazz)) {
	int numTests = countJunitTests(clazz);
	if (numTests > 0)
	childrenMethods = true;
	}
	} catch (ClassNotFoundException e) {
	}
	return childrenMethods;
	}


	public boolean isJunitTest(String className) {
	int index = className.lastIndexOf('$');
	if (index >= 0) {
	className = className.substring(0, index);
	}
	try {
	Class clazz = mContext.getClassLoader().loadClass(className);
	if (mJUnitClass.isAssignableFrom(clazz)) {
	return true;
	}
	} catch (ClassNotFoundException e) {
	}
	return false;
	}

	/**
	* Returns the number of tests that will be run if you try to do this.
	*/
	public static int countTests(Context c, String className) {
	try {
	Class clazz = c.getClassLoader().loadClass(className);
	Method method = getChildrenMethod(clazz);
	if (method != null) {

	String[] children = getChildren(method);
	int rv = 0;
	for (String child : children) {
	rv += countTests(c, child);
	}
	return rv;
	} else if (mRunnableClass.isAssignableFrom(clazz)) {
	return 1;
	} else if (mJUnitClass.isAssignableFrom(clazz)) {
	return countJunitTests(clazz);
	}
	} catch (ClassNotFoundException e) {
	return 1; // this gets the count right, because either this test
	// is missing, and it will fail when run or it is a single Junit test to be run.
	}
	return 0;
	}

	/**
	* Returns a title to display given the className of a test.
	* <p/>
	* <p>Currently this function just returns the portion of the
	* class name after the last '.'
	*/
	public static String getTitle(String className) {
	int indexDot = className.lastIndexOf('.');
	int indexDollar = className.lastIndexOf('$');
	int index = indexDot > indexDollar ? indexDot : indexDollar;
	if (index >= 0) {
	className = className.substring(index + 1);
	}
	return className;
	}
	}