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Commit 3e24af3e authored by Paul Duffin's avatar Paul Duffin Committed by Gerrit Code Review
Browse files

Merge "Copy junit-runner files into test-runner."

parents 06178a39 eef35dd2

test-runner/Android.mk

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@@ -21,7 +21,6 @@ include $(CLEAR_VARS) 
LOCAL_SRC_FILES := $(call all-java-files-under, src)



LOCAL_JAVA_LIBRARIES := core-oj core-libart junit framework

LOCAL_STATIC_JAVA_LIBRARIES := junit-runner



LOCAL_MODULE:= android.test.runner

test-runner/src/junit/MODULE_LICENSE_CPL

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Empty file added.

test-runner/src/junit/README.android

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URL: https://github.com/junit-team/junit4

License: Common Public License Version 1.0

License File: cpl-v10.html



This is JUnit 4.10 source that was previously part of the Android Public API.

Where necessary it has been patched to be compatible (according to Android API

requirements) with JUnit 3.8.



These are copied here to ensure that the android.test.runner target remains

compatible with the last version of the Android API (25) that contained these

classes even when external/junit is upgraded to a later version.

test-runner/src/junit/cpl-v10.html

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN">

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<TITLE>Common Public License - v 1.0</TITLE>

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test-runner/src/junit/runner/BaseTestRunner.java

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package junit.runner;



import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.PrintWriter;

import java.io.StringReader;

import java.io.StringWriter;

import java.lang.reflect.InvocationTargetException;

import java.lang.reflect.Method;

import java.lang.reflect.Modifier;

import java.text.NumberFormat;

import java.util.Properties;



import junit.framework.AssertionFailedError;

import junit.framework.Test;

import junit.framework.TestListener;

import junit.framework.TestSuite;



/**

 * Base class for all test runners.

 * This class was born live on stage in Sardinia during XP2000.

 */

public abstract class BaseTestRunner implements TestListener {

	public static final String SUITE_METHODNAME= "suite";



	private static Properties fPreferences;

	static int fgMaxMessageLength= 500;

	static boolean fgFilterStack= true;

	boolean fLoading= true;



    /*

    * Implementation of TestListener

    */

	public synchronized void startTest(Test test) {

		testStarted(test.toString());

	}



	protected static void setPreferences(Properties preferences) {

		fPreferences= preferences;

	}



	protected static Properties getPreferences() {

		if (fPreferences == null) {

			fPreferences= new Properties();

	 		fPreferences.put("loading", "true");

 			fPreferences.put("filterstack", "true");

  			readPreferences();

		}

		return fPreferences;

	}



	public static void savePreferences() throws IOException {

		FileOutputStream fos= new FileOutputStream(getPreferencesFile());

		try {

			getPreferences().store(fos, "");

		} finally {

			fos.close();

		}

	}



	// android-changed remove 'static' qualifier for API compatibility

	public void setPreference(String key, String value) {

		getPreferences().put(key, value);

	}



	public synchronized void endTest(Test test) {

		testEnded(test.toString());

	}



	public synchronized void addError(final Test test, final Throwable t) {

		testFailed(TestRunListener.STATUS_ERROR, test, t);

	}



	public synchronized void addFailure(final Test test, final AssertionFailedError t) {

		testFailed(TestRunListener.STATUS_FAILURE, test, t);

	}



	// TestRunListener implementation



	public abstract void testStarted(String testName);



	public abstract void testEnded(String testName);



	public abstract void testFailed(int status, Test test, Throwable t);



	/**

	 * Returns the Test corresponding to the given suite. This is

	 * a template method, subclasses override runFailed(), clearStatus().

	 */

	public Test getTest(String suiteClassName) {

		if (suiteClassName.length() <= 0) {

			clearStatus();

			return null;

		}

		Class<?> testClass= null;

		try {

			testClass= loadSuiteClass(suiteClassName);

		} catch (ClassNotFoundException e) {

			String clazz= e.getMessage();

			if (clazz == null)

				clazz= suiteClassName;

			runFailed("Class not found \""+clazz+"\"");

			return null;

		} catch(Exception e) {

			runFailed("Error: "+e.toString());

			return null;

		}

		Method suiteMethod= null;

		try {

			suiteMethod= testClass.getMethod(SUITE_METHODNAME, new Class[0]);

	 	} catch(Exception e) {

	 		// try to extract a test suite automatically

			clearStatus();

			return new TestSuite(testClass);

		}

		if (! Modifier.isStatic(suiteMethod.getModifiers())) {

			runFailed("Suite() method must be static");

			return null;

		}

		Test test= null;

		try {

			test= (Test)suiteMethod.invoke(null, (Object[])new Class[0]); // static method

			if (test == null)

				return test;

		}

		catch (InvocationTargetException e) {

			runFailed("Failed to invoke suite():" + e.getTargetException().toString());

			return null;

		}

		catch (IllegalAccessException e) {

			runFailed("Failed to invoke suite():" + e.toString());

			return null;

		}



		clearStatus();

		return test;

	}



	/**

	 * Returns the formatted string of the elapsed time.

	 */

	public String elapsedTimeAsString(long runTime) {

		return NumberFormat.getInstance().format((double)runTime/1000);

	}



	/**

	 * Processes the command line arguments and

	 * returns the name of the suite class to run or null

	 */

	protected String processArguments(String[] args) {

		String suiteName= null;

		for (int i= 0; i < args.length; i++) {

			if (args[i].equals("-noloading")) {

				setLoading(false);

			} else if (args[i].equals("-nofilterstack")) {

				fgFilterStack= false;

			} else if (args[i].equals("-c")) {

				if (args.length > i+1)

					suiteName= extractClassName(args[i+1]);

				else

					System.out.println("Missing Test class name");

				i++;

			} else {

				suiteName= args[i];

			}

		}

		return suiteName;

	}



	/**

	 * Sets the loading behaviour of the test runner

	 */

	public void setLoading(boolean enable) {

		fLoading= enable;

	}

	/**

	 * Extract the class name from a String in VA/Java style

	 */

	public String extractClassName(String className) {

		if(className.startsWith("Default package for"))

			return className.substring(className.lastIndexOf(".")+1);

		return className;

	}



	/**

	 * Truncates a String to the maximum length.

	 */

	public static String truncate(String s) {

		if (fgMaxMessageLength != -1 && s.length() > fgMaxMessageLength)

			s= s.substring(0, fgMaxMessageLength)+"...";

		return s;

	}



	/**

	 * Override to define how to handle a failed loading of

	 * a test suite.

	 */

	protected abstract void runFailed(String message);



	// BEGIN android-changed - add back getLoader() for API compatibility

	/**

	 * Returns the loader to be used.

	 *

	 * @deprecated not present in JUnit4.10

	 */

	public TestSuiteLoader getLoader() {

		return new StandardTestSuiteLoader();

	}

	// END android-changed



	/**

	 * Returns the loaded Class for a suite name.

	 */

	protected Class<?> loadSuiteClass(String suiteClassName) throws ClassNotFoundException {

		return Class.forName(suiteClassName);

	}



	/**

	 * Clears the status message.

	 */

	protected void clearStatus() { // Belongs in the GUI TestRunner class

	}



	protected boolean useReloadingTestSuiteLoader() {

		return getPreference("loading").equals("true") && fLoading;

	}



	private static File getPreferencesFile() {

	 	String home= System.getProperty("user.home");

 		return new File(home, "junit.properties");

 	}



 	private static void readPreferences() {

 		InputStream is= null;

 		try {

 			is= new FileInputStream(getPreferencesFile());

 			setPreferences(new Properties(getPreferences()));

			getPreferences().load(is);

		} catch (IOException e) {

			try {

				if (is != null)

					is.close();

			} catch (IOException e1) {

			}

		}

 	}



 	public static String getPreference(String key) {

 		return getPreferences().getProperty(key);

 	}



 	public static int getPreference(String key, int dflt) {

 		String value= getPreference(key);

 		int intValue= dflt;

 		if (value == null)

 			return intValue;

 		try {

 			intValue= Integer.parseInt(value);

 	 	} catch (NumberFormatException ne) {

 		}

 		return intValue;

 	}



	/**

	 * Returns a filtered stack trace

	 */

	public static String getFilteredTrace(Throwable t) {

		StringWriter stringWriter= new StringWriter();

		PrintWriter writer= new PrintWriter(stringWriter);

		t.printStackTrace(writer);

		StringBuffer buffer= stringWriter.getBuffer();

		String trace= buffer.toString();

		return BaseTestRunner.getFilteredTrace(trace);

	}



	// BEGIN android-changed - add back this method for API compatibility

	/** @deprecated not present in JUnit4.10 */

	public static boolean inVAJava() {

		return false;

	}

	// END android-changed



	/**

	 * Filters stack frames from internal JUnit classes

	 */

	public static String getFilteredTrace(String stack) {

		if (showStackRaw())

			return stack;



		StringWriter sw= new StringWriter();

		PrintWriter pw= new PrintWriter(sw);

		StringReader sr= new StringReader(stack);

		// BEGIN android-changed

		// Use a sensible default buffer size

		BufferedReader br= new BufferedReader(sr, 1000);

		// END android-changed



		String line;

		try {

			while ((line= br.readLine()) != null) {

				if (!filterLine(line))

					pw.println(line);

			}

		} catch (Exception IOException) {

			return stack; // return the stack unfiltered

		}

		return sw.toString();

	}



	protected static boolean showStackRaw() {

		return !getPreference("filterstack").equals("true") || fgFilterStack == false;

	}



	static boolean filterLine(String line) {

		String[] patterns= new String[] {

			"junit.framework.TestCase",

			"junit.framework.TestResult",

			"junit.framework.TestSuite",

			"junit.framework.Assert.", // don't filter AssertionFailure

			"junit.swingui.TestRunner",

			"junit.awtui.TestRunner",

			"junit.textui.TestRunner",

			"java.lang.reflect.Method.invoke("

		};

		for (int i= 0; i < patterns.length; i++) {

			if (line.indexOf(patterns[i]) > 0)

				return true;

		}

		return false;

	}



 	static {

 		fgMaxMessageLength= getPreference("maxmessage", fgMaxMessageLength);

 	}



}