327 lines
9.6 KiB
Java
327 lines
9.6 KiB
Java
package junit.runner;
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import junit.framework.*;
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import java.lang.reflect.*;
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import java.text.NumberFormat;
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import java.io.*;
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import java.util.*;
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/**
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* Base class for all test runners.
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* This class was born live on stage in Sardinia during XP2000.
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*/
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public abstract class BaseTestRunner implements TestListener {
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public static final String SUITE_METHODNAME= "suite";
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private static Properties fPreferences;
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static int fgMaxMessageLength= 500;
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static boolean fgFilterStack= true;
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boolean fLoading= true;
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/*
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* Implementation of TestListener
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*/
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public synchronized void startTest(Test test) {
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testStarted(test.toString());
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}
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protected static void setPreferences(Properties preferences) {
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fPreferences= preferences;
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}
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protected static Properties getPreferences() {
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if (fPreferences == null) {
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fPreferences= new Properties();
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fPreferences.put("loading", "true");
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fPreferences.put("filterstack", "true");
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readPreferences();
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}
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return fPreferences;
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}
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public static void savePreferences() throws IOException {
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FileOutputStream fos= new FileOutputStream(getPreferencesFile());
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try {
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getPreferences().store(fos, "");
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} finally {
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fos.close();
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}
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}
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public void setPreference(String key, String value) {
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getPreferences().setProperty(key, value);
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}
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public synchronized void endTest(Test test) {
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testEnded(test.toString());
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}
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public synchronized void addError(final Test test, final Throwable t) {
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testFailed(TestRunListener.STATUS_ERROR, test, t);
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}
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public synchronized void addFailure(final Test test, final AssertionFailedError t) {
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testFailed(TestRunListener.STATUS_FAILURE, test, t);
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}
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// TestRunListener implementation
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public abstract void testStarted(String testName);
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public abstract void testEnded(String testName);
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public abstract void testFailed(int status, Test test, Throwable t);
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/**
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* Returns the Test corresponding to the given suite. This is
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* a template method, subclasses override runFailed(), clearStatus().
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*/
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public Test getTest(String suiteClassName) {
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if (suiteClassName.length() <= 0) {
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clearStatus();
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return null;
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}
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Class testClass= null;
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try {
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testClass= loadSuiteClass(suiteClassName);
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} catch (ClassNotFoundException e) {
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String clazz= e.getMessage();
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if (clazz == null)
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clazz= suiteClassName;
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runFailed("Class not found \""+clazz+"\"");
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return null;
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} catch(Exception e) {
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runFailed("Error: "+e.toString());
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return null;
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}
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Method suiteMethod= null;
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try {
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suiteMethod= testClass.getMethod(SUITE_METHODNAME, new Class[0]);
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} catch(Exception e) {
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// try to extract a test suite automatically
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clearStatus();
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return new TestSuite(testClass);
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}
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if (! Modifier.isStatic(suiteMethod.getModifiers())) {
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runFailed("Suite() method must be static");
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return null;
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}
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Test test= null;
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try {
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test= (Test)suiteMethod.invoke(null); // static method
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if (test == null)
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return test;
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}
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catch (InvocationTargetException e) {
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runFailed("Failed to invoke suite():" + e.getTargetException().toString());
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return null;
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}
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catch (IllegalAccessException e) {
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runFailed("Failed to invoke suite():" + e.toString());
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return null;
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}
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clearStatus();
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return test;
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}
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/**
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* Returns the formatted string of the elapsed time.
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*/
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public String elapsedTimeAsString(long runTime) {
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return NumberFormat.getInstance().format((double)runTime/1000);
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}
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/**
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* Processes the command line arguments and
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* returns the name of the suite class to run or null
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*/
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protected String processArguments(String[] args) {
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String suiteName= null;
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for (int i= 0; i < args.length; i++) {
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if (args[i].equals("-noloading")) {
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setLoading(false);
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} else if (args[i].equals("-nofilterstack")) {
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fgFilterStack= false;
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} else if (args[i].equals("-c")) {
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if (args.length > i+1)
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suiteName= extractClassName(args[i+1]);
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else
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System.out.println("Missing Test class name");
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i++;
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} else {
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suiteName= args[i];
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}
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}
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return suiteName;
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}
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/**
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* Sets the loading behaviour of the test runner
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*/
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public void setLoading(boolean enable) {
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fLoading= enable;
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}
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/**
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* Extract the class name from a String
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*/
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public String extractClassName(String className) {
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if(className.startsWith("Default package for"))
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return className.substring(className.lastIndexOf(".")+1);
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return className;
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}
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/**
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* Truncates a String to the maximum length.
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*/
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public static String truncate(String s) {
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if (fgMaxMessageLength != -1 && s.length() > fgMaxMessageLength)
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s= s.substring(0, fgMaxMessageLength)+"...";
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return s;
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}
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/**
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* Override to define how to handle a failed loading of
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* a test suite.
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*/
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protected abstract void runFailed(String message);
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/**
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* Returns the loaded Class for a suite name.
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*/
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protected Class loadSuiteClass(String suiteClassName) throws ClassNotFoundException {
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return getLoader().load(suiteClassName);
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}
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/**
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* Clears the status message.
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*/
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protected void clearStatus() { // Belongs in the GUI TestRunner class
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}
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/**
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* Returns the loader to be used.
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*/
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public TestSuiteLoader getLoader() {
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if (useReloadingTestSuiteLoader())
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return new ReloadingTestSuiteLoader();
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return new StandardTestSuiteLoader();
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}
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protected boolean useReloadingTestSuiteLoader() {
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return getPreference("loading").equals("true") && !inVAJava() && fLoading;
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}
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private static File getPreferencesFile() {
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String home= System.getProperty("user.home");
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return new File(home, "junit.properties");
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}
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private static void readPreferences() {
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InputStream is= null;
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try {
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is= new FileInputStream(getPreferencesFile());
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setPreferences(new Properties(getPreferences()));
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getPreferences().load(is);
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} catch (IOException e) {
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try {
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if (is != null)
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is.close();
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} catch (IOException e1) {
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}
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}
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}
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public static String getPreference(String key) {
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return getPreferences().getProperty(key);
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}
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public static int getPreference(String key, int dflt) {
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String value= getPreference(key);
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int intValue= dflt;
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if (value == null)
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return intValue;
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try {
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intValue= Integer.parseInt(value);
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} catch (NumberFormatException ne) {
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}
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return intValue;
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}
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public static boolean inVAJava() {
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try {
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Class.forName("com.ibm.uvm.tools.DebugSupport");
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}
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catch (Exception e) {
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return false;
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}
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return true;
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}
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/**
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* Returns a filtered stack trace
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*/
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public static String getFilteredTrace(Throwable t) {
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StringWriter stringWriter= new StringWriter();
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PrintWriter writer= new PrintWriter(stringWriter);
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t.printStackTrace(writer);
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StringBuffer buffer= stringWriter.getBuffer();
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String trace= buffer.toString();
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return BaseTestRunner.getFilteredTrace(trace);
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}
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/**
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* Filters stack frames from internal JUnit classes
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*/
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public static String getFilteredTrace(String stack) {
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if (showStackRaw())
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return stack;
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StringWriter sw= new StringWriter();
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PrintWriter pw= new PrintWriter(sw);
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StringReader sr= new StringReader(stack);
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// BEGIN android-changed
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// Use a sensible default buffer size
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BufferedReader br= new BufferedReader(sr, 1000);
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// END android-changed
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String line;
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try {
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while ((line= br.readLine()) != null) {
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if (!filterLine(line))
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pw.println(line);
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}
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} catch (Exception IOException) {
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return stack; // return the stack unfiltered
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}
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return sw.toString();
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}
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protected static boolean showStackRaw() {
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return !getPreference("filterstack").equals("true") || fgFilterStack == false;
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}
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static boolean filterLine(String line) {
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String[] patterns= new String[] {
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"junit.framework.TestCase",
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"junit.framework.TestResult",
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"junit.framework.TestSuite",
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"junit.framework.Assert.", // don't filter AssertionFailure
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"junit.swingui.TestRunner",
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"junit.awtui.TestRunner",
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"junit.textui.TestRunner",
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"java.lang.reflect.Method.invoke("
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};
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for (int i= 0; i < patterns.length; i++) {
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if (line.indexOf(patterns[i]) > 0)
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return true;
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}
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return false;
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}
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static {
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fgMaxMessageLength= getPreference("maxmessage", fgMaxMessageLength);
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}
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}
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