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/*
* java-gnome, a UI library for writing GTK and GNOME programs from Java!
*
* Copyright © 2006-2010 Operational Dynamics Consulting, Pty Ltd
*
* The code in this file, and the program it is a part of, is made available
* to you by its authors as open source software: you can redistribute it
* and/or modify it under the terms of the GNU General Public License version
* 2 ("GPL") as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GPL for more details.
*
* You should have received a copy of the GPL along with this program. If not,
* see http://www.gnu.org/licenses/. The authors of this program may be
* contacted through http://java-gnome.sourceforge.net/.
*/
package com.operationaldynamics.junit;
/*
* This class imported from ObjectiveAccounts accounting package where it was
* originally deployed as GPL code in generic.ui.VerboseResultPrinter
*/
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.freedesktop.bindings.Debug;
import junit.framework.AssertionFailedError;
import junit.framework.Test;
import junit.framework.TestListener;
import com.operationaldynamics.ui.TextOutput;
/**
* Output the test by test results of running a Test, printing the name of
* each test along the way. This replaces the default notion of
* junit.textui.ResultPrinter with an equivalent implementation of
* TestListener. The various callbacks here get called as test cases get
* started and then succeed, fail, or error. We use our
* {@link generic.ui.TextOutput} as a superclass to get the various useful
* output routines there. Instantiated by our
* {@link generic.junit.VerboseTestRunner}.
*
* @author Andrew Cowie
*/
public class VerboseResultPrinter extends TextOutput implements TestListener
{
private PrintWriter out = null;
private String currentClass = null;
private boolean failed;
private boolean haltOnBug;
/**
* @param haltOnBug
* if the program should stop if a failure or error is
* encountered
*/
public VerboseResultPrinter(boolean haltOnBug) {
/*
* Calling super.toOutput(PrintStream) will wrap the PrintStream with
* a PrintWriter and then in turn call this.toOutput(PrintWriter).
* Convoluted perhaps, but might as well as it uses the abstract
* method we have to implement anyway.
*/
super.toOutput(System.out);
this.haltOnBug = haltOnBug;
}
/**
* Implements abstract toOutput() from TextOutput. We don't use this as
* the entry point in the way that the real TextOutput subclasses do; this
* just sets stdout to the output stream.
*/
public void toOutput(PrintWriter out) {
this.out = out;
}
public String filterTrace(Throwable t) {
StringWriter stringWriter = new StringWriter();
PrintWriter writer = new PrintWriter(stringWriter);
t.printStackTrace(writer);
String trace = stringWriter.toString();
Pattern lineNumber = Pattern.compile(currentClass + ".*\\((\\w+\\.java:\\d+)\\)");
Matcher m = lineNumber.matcher(trace);
if (m.find()) {
// group 0 is the entire match aka group()
return m.group(1);
} else {
return "(No line number available)";
}
}
public void addError(Test test, Throwable t) {
if (!Debug.MEMORY_MANAGEMENT) {
out.println(pad("error", 10, LEFT));
}
out.println();
out.println("Encoutered an error at " + filterTrace(t));
out.println("The following exception was thrown:\n");
out.println(" " + t.toString());
out.println("\nNormally exceptions in unit tests are trapped and reported as failures;\n"
+ "this was unexpected. It could be a bug or something deeper with your\n"
+ "environment or setup.");
out.println();
if (haltOnBug) {
System.exit(VerboseTestRunner.EXCEPTION_EXIT);
}
failed = true;
}
public void addFailure(Test test, AssertionFailedError t) {
if (!Debug.MEMORY_MANAGEMENT) {
out.println(pad("failed", 10, LEFT));
}
out.println();
out.println("Unit test failed at " + filterTrace(t) + ",");
String msg = t.getMessage();
if (msg == null) {
out.print("[no reason given by test case]");
} else {
out.print("\"" + msg + "\"");
}
out.println("\n");
if (haltOnBug) {
System.exit(VerboseTestRunner.FAILURE_EXIT);
}
failed = true;
}
public void endTest(Test test) {
if (failed) {
return;
}
if (Debug.MEMORY_MANAGEMENT) {
return;
}
out.println(pad("ok", 10, LEFT));
}
private static Pattern regex = Pattern.compile("\\(.*\\)");
public void startTest(Test test) {
failed = false;
String testClassName = test.getClass().getName();
/*
* If we're in a new class, then switch our reference and print the
* new name.
*/
if ((currentClass == null) || (!(currentClass.equals(testClassName)))) {
currentClass = testClassName;
out.println(currentClass);
}
/*
* Test.toString returns a String of the form
* "testCaseName(java.package.Class)". So we use a regular expression
* to nuke out the characters between the brackers. We then use
* TextOutput's static routines to trim the output to terminal width
* less 10 but pad it out to that width. We then let the other
* callbacks finish the line.
*/
Matcher m = regex.matcher(test.toString());
String testCaseName = chomp(" - " + m.replaceFirst("()"), COLUMNS - 10);
if (Debug.MEMORY_MANAGEMENT) {
out.println(testCaseName);
} else {
out.print(pad(testCaseName, COLUMNS - 10, LEFT));
out.flush();
}
}
}
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