/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.tools.ant;
import junit.framework.TestCase;
import java.io.File;
import java.io.PrintStream;
import java.net.URL;
/**
* A BuildFileTest is a TestCase which executes targets from an Ant buildfile
* for testing.
*
* This class provides a number of utility methods for particular build file
* tests which extend this class.
*
*/
public abstract class BuildFileTest extends TestCase {
protected Project project;
private StringBuffer logBuffer;
private StringBuffer fullLogBuffer;
private StringBuffer outBuffer;
private StringBuffer errBuffer;
private BuildException buildException;
/**
* Default constructor for the BuildFileTest object.
*/
public BuildFileTest() {
super();
}
/**
* Constructor for the BuildFileTest object.
*
* @param name string to pass up to TestCase constructor
*/
public BuildFileTest(String name) {
super(name);
}
/**
* Automatically calls the target called "tearDown"
* from the build file tested if it exits.
*
* This allows to use Ant tasks directly in the build file
* to clean up after each test. Note that no "setUp" target
* is automatically called, since it's trivial to have a
* test target depend on it.
*/
protected void tearDown() throws Exception {
final String tearDown = "tearDown";
if (project.getTargets().containsKey(tearDown)) {
project.executeTarget(tearDown);
}
}
/**
* run a target, expect for any build exception
*
* @param target target to run
* @param cause information string to reader of report
*/
public void expectBuildException(String target, String cause) {
expectSpecificBuildException(target, cause, null);
}
/**
* Assert that only the given message has been logged with a
* priority <= INFO when running the given target.
*/
public void expectLog(String target, String log) {
executeTarget(target);
String realLog = getLog();
assertEquals(log, realLog);
}
/**
* Assert that the given substring is in the log messages.
*/
public void assertLogContaining(String substring) {
String realLog = getLog();
assertTrue("expecting log to contain \"" + substring + "\" log was \""
+ realLog + "\"",
realLog.indexOf(substring) >= 0);
}
/**
* Assert that the given substring is in the output messages.
* @since Ant1.7
*/
public void assertOutputContaining(String substring) {
String realOutput = getOutput();
assertTrue("expecting output to contain \"" + substring
+ "\" output was \"" + realOutput + "\"",
realOutput.indexOf(substring) >= 0);
}
/**
* Assert that the given message has been logged with a priority
* <= INFO when running the given target.
*/
public void expectLogContaining(String target, String log) {
executeTarget(target);
assertLogContaining(log);
}
/**
* Gets the log the BuildFileTest object.
* Only valid if configureProject() has been called.
*
* @pre logBuffer!=null
* @return The log value
*/
public String getLog() {
return logBuffer.toString();
}
/**
* Assert that the given message has been logged with a priority
* >= VERBOSE when running the given target.
*/
public void expectDebuglog(String target, String log) {
executeTarget(target);
String realLog = getFullLog();
assertEquals(log, realLog);
}
/**
* Assert that the given substring is in the log messages.
*/
public void assertDebuglogContaining(String substring) {
String realLog = getFullLog();
assertTrue("expecting debug log to contain \"" + substring
+ "\" log was \""
+ realLog + "\"",
realLog.indexOf(substring) >= 0);
}
/**
* Gets the log the BuildFileTest object.
*
* Only valid if configureProject() has been called.
*
* @pre fullLogBuffer!=null
* @return The log value
*/
public String getFullLog() {
return fullLogBuffer.toString();
}
/**
* execute the target, verify output matches expectations
*
* @param target target to execute
* @param output output to look for
*/
public void expectOutput(String target, String output) {
executeTarget(target);
String realOutput = getOutput();
assertEquals(output, realOutput.trim());
}
/**
* Executes the target, verify output matches expectations
* and that we got the named error at the end
*
* @param target target to execute
* @param output output to look for
* @param error Description of Parameter
*/
public void expectOutputAndError(String target, String output, String error) {
executeTarget(target);
String realOutput = getOutput();
assertEquals(output, realOutput);
String realError = getError();
assertEquals(error, realError);
}
public String getOutput() {
return cleanBuffer(outBuffer);
}
public String getError() {
return cleanBuffer(errBuffer);
}
public BuildException getBuildException() {
return buildException;
}
private String cleanBuffer(StringBuffer buffer) {
StringBuffer cleanedBuffer = new StringBuffer();
boolean cr = false;
for (int i = 0; i < buffer.length(); i++) {
char ch = buffer.charAt(i);
if (ch == '\r') {
cr = true;
continue;
}
if (!cr) {
cleanedBuffer.append(ch);
} else {
cleanedBuffer.append(ch);
}
}
return cleanedBuffer.toString();
}
/**
* Sets up to run the named project
*
* @param filename name of project file to run
*/
public void configureProject(String filename) throws BuildException {
configureProject(filename, Project.MSG_DEBUG);
}
/**
* Sets up to run the named project
*
* @param filename name of project file to run
*/
public void configureProject(String filename, int logLevel)
throws BuildException {
logBuffer = new StringBuffer();
fullLogBuffer = new StringBuffer();
project = new Project();
project.init();
File antFile = new File(System.getProperty("root"), filename);
project.setUserProperty("ant.file" , antFile.getAbsolutePath());
project.addBuildListener(new AntTestListener(logLevel));
ProjectHelper.configureProject(project, antFile);
}
/**
* Executes a target we have set up
*
* @pre configureProject has been called
* @param targetName target to run
*/
public void executeTarget(String targetName) {
PrintStream sysOut = System.out;
PrintStream sysErr = System.err;
try {
sysOut.flush();
sysErr.flush();
outBuffer = new StringBuffer();
PrintStream out = new PrintStream(new AntOutputStream(outBuffer));
System.setOut(out);
errBuffer = new StringBuffer();
PrintStream err = new PrintStream(new AntOutputStream(errBuffer));
System.setErr(err);
logBuffer = new StringBuffer();
fullLogBuffer = new StringBuffer();
buildException = null;
project.executeTarget(targetName);
} finally {
System.setOut(sysOut);
System.setErr(sysErr);
}
}
/**
* Get the project which has been configured for a test.
*
* @return the Project instance for this test.
*/
public Project getProject() {
return project;
}
/**
* Gets the directory of the project.
*
* @return the base dir of the project
*/
public File getProjectDir() {
return project.getBaseDir();
}
/**
* Runs a target, wait for a build exception.
*
* @param target target to run
* @param cause information string to reader of report
* @param msg the message value of the build exception we are waiting
* for set to null for any build exception to be valid
*/
public void expectSpecificBuildException(String target, String cause, String msg) {
try {
executeTarget(target);
} catch (org.apache.tools.ant.BuildException ex) {
buildException = ex;
if ((null != msg) && (!ex.getMessage().equals(msg))) {
fail("Should throw BuildException because '" + cause
+ "' with message '" + msg
+ "' (actual message '" + ex.getMessage() + "' instead)");
}
return;
}
fail("Should throw BuildException because: " + cause);
}
/**
* run a target, expect an exception string
* containing the substring we look for (case sensitive match)
*
* @param target target to run
* @param cause information string to reader of report
* @param contains substring of the build exception to look for
*/
public void expectBuildExceptionContaining(String target, String cause, String contains) {
try {
executeTarget(target);
} catch (org.apache.tools.ant.BuildException ex) {
buildException = ex;
if ((null != contains) && (ex.getMessage().indexOf(contains) == -1)) {
fail("Should throw BuildException because '" + cause + "' with message containing '" + contains + "' (actual message '" + ex.getMessage() + "' instead)");
}
return;
}
fail("Should throw BuildException because: " + cause);
}
/**
* call a target, verify property is as expected
*
* @param target build file target
* @param property property name
* @param value expected value
*/
public void expectPropertySet(String target, String property, String value) {
executeTarget(target);
assertPropertyEquals(property, value);
}
/**
* assert that a property equals a value; comparison is case sensitive.
*
* @param property property name
* @param value expected value
*/
public void assertPropertyEquals(String property, String value) {
String result = project.getProperty(property);
assertEquals("property " + property,value,result);
}
/**
* assert that a property equals "true".
*
* @param property property name
*/
public void assertPropertySet(String property) {
assertPropertyEquals(property, "true");
}
/**
* assert that a property is null.
*
* @param property property name
*/
public void assertPropertyUnset(String property) {
assertPropertyEquals(property, null);
}
/**
* call a target, verify named property is "true".
*
* @param target build file target
* @param property property name
*/
public void expectPropertySet(String target, String property) {
expectPropertySet(target, property, "true");
}
/**
* Call a target, verify property is null.
*
* @param target build file target
* @param property property name
*/
public void expectPropertyUnset(String target, String property) {
expectPropertySet(target, property, null);
}
/**
* Retrieve a resource from the caller classloader to avoid
* assuming a vm working directory. The resource path must be
* relative to the package name or absolute from the root path.
*
* @param resource the resource to retrieve its url.
* @throws junit.framework.AssertionFailedError if the resource is not found.
*/
public URL getResource(String resource){
URL url = getClass().getResource(resource);
assertNotNull("Could not find resource :" + resource, url);
return url;
}
/**
* an output stream which saves stuff to our buffer.
*/
private static class AntOutputStream extends java.io.OutputStream {
private StringBuffer buffer;
public AntOutputStream( StringBuffer buffer ) {
this.buffer = buffer;
}
public void write(int b) {
buffer.append((char)b);
}
}
/**
* Our own personal build listener.
*/
private class AntTestListener implements BuildListener {
private int logLevel;
/**
* Constructs a test listener which will ignore log events
* above the given level.
*/
public AntTestListener(int logLevel) {
this.logLevel = logLevel;
}
/**
* Fired before any targets are started.
*/
public void buildStarted(BuildEvent event) {
}
/**
* Fired after the last target has finished. This event
* will still be thrown if an error occurred during the build.
*
* @see BuildEvent#getException()
*/
public void buildFinished(BuildEvent event) {
}
/**
* Fired when a target is started.
*
* @see BuildEvent#getTarget()
*/
public void targetStarted(BuildEvent event) {
//System.out.println("targetStarted " + event.getTarget().getName());
}
/**
* Fired when a target has finished. This event will
* still be thrown if an error occurred during the build.
*
* @see BuildEvent#getException()
*/
public void targetFinished(BuildEvent event) {
//System.out.println("targetFinished " + event.getTarget().getName());
}
/**
* Fired when a task is started.
*
* @see BuildEvent#getTask()
*/
public void taskStarted(BuildEvent event) {
//System.out.println("taskStarted " + event.getTask().getTaskName());
}
/**
* Fired when a task has finished. This event will still
* be throw if an error occurred during the build.
*
* @see BuildEvent#getException()
*/
public void taskFinished(BuildEvent event) {
//System.out.println("taskFinished " + event.getTask().getTaskName());
}
/**
* Fired whenever a message is logged.
*
* @see BuildEvent#getMessage()
* @see BuildEvent#getPriority()
*/
public void messageLogged(BuildEvent event) {
if (event.getPriority() > logLevel) {
// ignore event
return;
}
if (event.getPriority() == Project.MSG_INFO ||
event.getPriority() == Project.MSG_WARN ||
event.getPriority() == Project.MSG_ERR) {
logBuffer.append(event.getMessage());
}
fullLogBuffer.append(event.getMessage());
}
}
}
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