org.apache.tools.ant.taskdefs.optional.junit
Class JUnitTask

java.lang.Object
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  +--org.apache.tools.ant.ProjectComponent
        |
        +--org.apache.tools.ant.Task
              |
              +--org.apache.tools.ant.taskdefs.optional.junit.JUnitTask

public class JUnitTask

extends Task

Runs JUnit tests.

JUnit is a framework to create unit test. It has been initially created by Erich Gamma and Kent Beck. JUnit can be found at http://www.junit.org.

JUnitTask can run a single specific JUnitTest using the test element.

For example, the following target

   <target name="test-int-chars" depends="jar-test">
       <echo message="testing international characters"/>
       <junit printsummary="no" haltonfailure="yes" fork="false">
           <classpath refid="classpath"/>
           <formatter type="plain" usefile="false" />
           <test name="org.apache.ecs.InternationalCharTest" />
       </junit>
   </target>
 

runs a single junit test (org.apache.ecs.InternationalCharTest) in the current VM using the path with id classpath as classpath and presents the results formatted using the standard plain formatter on the command line.

This task can also run batches of tests. The batchtest element creates a BatchTest based on a fileset. This allows, for example, all classes found in directory to be run as testcases.

For example,

 <target name="run-tests" depends="dump-info,compile-tests" if="junit.present">
   <junit printsummary="no" haltonfailure="yes" fork="${junit.fork}">
     <jvmarg value="-classic"/>
     <classpath refid="tests-classpath"/>
     <sysproperty key="build.tests" value="${build.tests}"/>
     <formatter type="brief" usefile="false" />
     <batchtest>
       <fileset dir="${tests.dir}">
         <include name="**/*Test*" />
       </fileset>
     </batchtest>
   </junit>
 </target>
 

this target finds any classes with a test directory anywhere in their path (under the top ${tests.dir}, of course) and creates JUnitTest's for each one.

Of course, <junit> and <batch> elements can be combined for more complex tests. For an example, see the ant build.xml target run-tests (the second example is an edited version).

To spawn a new Java VM to prevent interferences between different testcases, you need to enable fork. A number of attributes and elements allow you to set up how this JVM runs.

Since:

Ant 1.2

Version:

$Revision: 1.83.2.12 $

See Also:

JUnitTest, BatchTest

Nested Class Summary

static class	JUnitTask.ForkMode These are the different forking options
static class	JUnitTask.SummaryAttribute Print summary enumeration values.

Field Summary

Fields inherited from class org.apache.tools.ant.Task

description, location, target, taskName, taskType, wrapper

Fields inherited from class org.apache.tools.ant.ProjectComponent

project

Constructor Summary

JUnitTask()
Creates a new JUnitRunner and enables fork of a new Java VM.

Method Summary

protected void	actOnTestResult(int exitValue, boolean wasKilled, JUnitTest test, java.lang.String name) Logs information about failed tests, potentially stops processing (by throwing a BuildException) if a failure/error occured or sets a property.
void	addAssertions(Assertions asserts) Assertions to enable in this program (if fork=true)
protected void	addClasspathEntry(java.lang.String resource) Search for the given resource and add the directory or archive that contains it to the classpath.
void	addConfiguredSysproperty(Environment.Variable sysp) Adds a system property that tests can access.
void	addEnv(Environment.Variable var) Adds an environment variable; used when forking.
void	addFormatter(FormatterElement fe) Add a new formatter to all tests of this task.
void	addSysproperty(Environment.Variable sysp) Deprecated. since ant 1.6
void	addSyspropertyset(PropertySet sysp) Adds a set of properties that will be used as system properties that tests can access.
void	addTest(JUnitTest test) Add a new single testcase.
protected java.util.Enumeration	allTests() return an enumeration listing each test, then each batchtest
BatchTest	createBatchTest() Adds a set of tests based on pattern matching.
Path	createBootclasspath() Adds a path to the bootclasspath.
Path	createClasspath() Adds path to classpath used for tests.
Commandline.Argument	createJvmarg() Adds a JVM argument; ignored if not forking.
Permissions	createPermissions() Sets the permissions for the application run inside the same JVM.
protected ExecuteWatchdog	createWatchdog()
void	execute() Runs the testcase.
protected void	execute(JUnitTest arg) Run the tests.
protected void	execute(java.util.List tests) Execute a list of tests in a single forked Java VM.
protected java.util.Collection	executeOrQueue(java.util.Enumeration testList, boolean runIndividual) Executes all tests that don't need to be forked (or all tests if the runIndividual argument is true.
protected CommandlineJava	getCommandline()
protected java.io.OutputStream	getDefaultOutput() Get the default output for a formatter.
protected java.util.Enumeration	getIndividualTests() Merge all individual tests from the batchtest with all individual tests and return an enumeration over all JUnitTest.
protected java.io.File	getOutput(FormatterElement fe, JUnitTest test) If the formatter sends output to a file, return that file.
void	handleErrorFlush(java.lang.String output) Pass output sent to System.err to the TestRunner so it can collect it for the formatters.
void	handleErrorOutput(java.lang.String output) Pass output sent to System.err to the TestRunner so it can collect it for the formatters.
protected void	handleFlush(java.lang.String output) Pass output sent to System.out to the TestRunner so it can collect ot for the formatters.
protected int	handleInput(byte[] buffer, int offset, int length) Handle an input request by this task
protected void	handleOutput(java.lang.String output) Pass output sent to System.out to the TestRunner so it can collect ot for the formatters.
void	init() Adds the jars or directories containing Ant, this task and JUnit to the classpath - this should make the forked JVM work without having to specify them directly.
void	setDir(java.io.File dir) The directory to invoke the VM in.
void	setErrorProperty(java.lang.String propertyName) Property to set to "true" if there is a error in a test.
void	setFailureProperty(java.lang.String propertyName) Property to set to "true" if there is a failure in a test.
void	setFiltertrace(boolean value) If true, smartly filter the stack frames of JUnit errors and failures before reporting them.
void	setFork(boolean value) If true, JVM should be forked for each test.
void	setForkMode(JUnitTask.ForkMode mode) Set the behavior when fork fork has been enabled.
void	setHaltonerror(boolean value) If true, stop the build process when there is an error in a test.
void	setHaltonfailure(boolean value) If true, stop the build process if a test fails (errors are considered failures as well).
void	setIncludeantruntime(boolean b) If true, include ant.jar, optional.jar and junit.jar in the forked VM.
void	setJvm(java.lang.String value) The command used to invoke the Java Virtual Machine, default is 'java'.
void	setMaxmemory(java.lang.String max) Set the maximum memory to be used by all forked JVMs.
void	setNewenvironment(boolean newenv) If true, use a new environment when forked.
void	setPrintsummary(JUnitTask.SummaryAttribute value) If true, print one-line statistics for each test, or "withOutAndErr" to also show standard output and error.
void	setReloading(boolean value) If true, force ant to re-classload all classes for each JUnit TestCase
void	setShowOutput(boolean showOutput) If true, send any output generated by tests to Ant's logging system as well as to the formatters.
void	setTempdir(java.io.File tmpDir) Where Ant should place temporary files.
void	setTimeout(java.lang.Integer value) Set the timeout value (in milliseconds).

Methods inherited from class org.apache.tools.ant.Task

getDescription, getLocation, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, getTaskType, getWrapper, isInvalid, log, log, maybeConfigure, perform, reconfigure, setDescription, setLocation, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName, setTaskType

Methods inherited from class org.apache.tools.ant.ProjectComponent

getProject, setProject

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JUnitTask

public JUnitTask()
          throws java.lang.Exception

Creates a new JUnitRunner and enables fork of a new Java VM.

Throws:

java.lang.Exception - under ??? circumstances

Since:

Ant 1.2

Method Detail

setReloading

public void setReloading(boolean value)

If true, force ant to re-classload all classes for each JUnit TestCase

Parameters:

value - force class reloading for each test case

setFiltertrace

public void setFiltertrace(boolean value)

If true, smartly filter the stack frames of JUnit errors and failures before reporting them.

This property is applied on all BatchTest (batchtest) and JUnitTest (test) however it can possibly be overridden by their own properties.

Parameters:

value - false if it should not filter, otherwise true

Since:

Ant 1.5

setHaltonerror

public void setHaltonerror(boolean value)

If true, stop the build process when there is an error in a test. This property is applied on all BatchTest (batchtest) and JUnitTest (test) however it can possibly be overridden by their own properties.

Parameters:

value - true if it should halt, otherwise false

Since:

Ant 1.2

setErrorProperty

public void setErrorProperty(java.lang.String propertyName)

Property to set to "true" if there is a error in a test.

This property is applied on all BatchTest (batchtest) and JUnitTest (test), however, it can possibly be overriden by their own properties.

Parameters:

propertyName - the name of the property to set in the event of an error.

Since:

Ant 1.4

setHaltonfailure

public void setHaltonfailure(boolean value)

If true, stop the build process if a test fails (errors are considered failures as well). This property is applied on all BatchTest (batchtest) and JUnitTest (test) however it can possibly be overridden by their own properties.

Parameters:

value - true if it should halt, otherwise false

Since:

Ant 1.2

setFailureProperty

public void setFailureProperty(java.lang.String propertyName)

Property to set to "true" if there is a failure in a test.

This property is applied on all BatchTest (batchtest) and JUnitTest (test), however, it can possibly be overriden by their own properties.

Parameters:

propertyName - the name of the property to set in the event of an failure.

Since:

Ant 1.4

setFork

public void setFork(boolean value)

If true, JVM should be forked for each test.

It avoids interference between testcases and possibly avoids hanging the build. this property is applied on all BatchTest (batchtest) and JUnitTest (test) however it can possibly be overridden by their own properties.

Parameters:

value - true if a JVM should be forked, otherwise false

Since:

Ant 1.2

See Also:

setTimeout(java.lang.Integer)

setForkMode

public void setForkMode(JUnitTask.ForkMode mode)

Set the behavior when fork fork has been enabled.

Possible values are "once", "perTest" and "perBatch". If set to "once", only a single Java VM will be forked for all tests, with "perTest" (the default) each test will run in a fresh Java VM and "perBatch" will run all tests from the same <batchtest> in the same Java VM.

This attribute will be ignored if tests run in the same VM as Ant.

Only tests with the same configuration of haltonerror, haltonfailure, errorproperty, failureproperty and filtertrace can share a forked Java VM, so even if you set the value to "once", Ant may need to fork mutliple VMs.

Since:

Ant 1.6.2

setPrintsummary

public void setPrintsummary(JUnitTask.SummaryAttribute value)

If true, print one-line statistics for each test, or "withOutAndErr" to also show standard output and error. Can take the values on, off, and withOutAndErr.

Parameters:

value - true to print a summary, withOutAndErr to include the test's output as well, false otherwise.

Since:

Ant 1.2

See Also:

SummaryJUnitResultFormatter

setTimeout

public void setTimeout(java.lang.Integer value)

Set the timeout value (in milliseconds).

If the test is running for more than this value, the test will be canceled. (works only when in 'fork' mode).

Parameters:

value - the maximum time (in milliseconds) allowed before declaring the test as 'timed-out'

Since:

Ant 1.2

See Also:

setFork(boolean)

setMaxmemory

public void setMaxmemory(java.lang.String max)

Set the maximum memory to be used by all forked JVMs.

Parameters:

max - the value as defined by -mx or -Xmx in the java command line options.

Since:

Ant 1.2

setJvm

public void setJvm(java.lang.String value)

The command used to invoke the Java Virtual Machine, default is 'java'. The command is resolved by java.lang.Runtime.exec(). Ignored if fork is disabled.

Parameters:

value - the new VM to use instead of java

Since:

Ant 1.2

See Also:

setFork(boolean)

createJvmarg

public Commandline.Argument createJvmarg()

Adds a JVM argument; ignored if not forking.

Returns:

create a new JVM argument so that any argument can be passed to the JVM.

Since:

Ant 1.2

See Also:

setFork(boolean)

setDir

public void setDir(java.io.File dir)

The directory to invoke the VM in. Ignored if no JVM is forked.

Parameters:

dir - the directory to invoke the JVM from.

Since:

Ant 1.2

See Also:

setFork(boolean)

addSysproperty

public void addSysproperty(Environment.Variable sysp)

Deprecated. since ant 1.6

Adds a system property that tests can access. This might be useful to tranfer Ant properties to the testcases when JVM forking is not enabled.

Parameters:

sysp - environment variable to add

Since:

Ant 1.3

addConfiguredSysproperty

public void addConfiguredSysproperty(Environment.Variable sysp)

Adds a system property that tests can access. This might be useful to tranfer Ant properties to the testcases when JVM forking is not enabled.

Parameters:

sysp - new environment variable to add

Since:

Ant 1.6

addSyspropertyset

public void addSyspropertyset(PropertySet sysp)

Adds a set of properties that will be used as system properties that tests can access. This might be useful to tranfer Ant properties to the testcases when JVM forking is not enabled.

Parameters:

sysp - set of properties to be added

Since:

Ant 1.6

createClasspath

public Path createClasspath()

Adds path to classpath used for tests.

Returns:

reference to the classpath in the embedded java command line

Since:

Ant 1.2

createBootclasspath

public Path createBootclasspath()

Adds a path to the bootclasspath.

Returns:

reference to the bootclasspath in the embedded java command line

Since:

Ant 1.6

addEnv

public void addEnv(Environment.Variable var)

Adds an environment variable; used when forking.

Will be ignored if we are not forking a new VM.

Parameters:

var - environment variable to be added

Since:

Ant 1.5

setNewenvironment

public void setNewenvironment(boolean newenv)

If true, use a new environment when forked.

Will be ignored if we are not forking a new VM.

Parameters:

newenv - boolean indicating if setting a new environment is wished

Since:

Ant 1.5

addTest

public void addTest(JUnitTest test)

Add a new single testcase.

Parameters:

test - a new single testcase

Since:

Ant 1.2

See Also:

JUnitTest

createBatchTest

public BatchTest createBatchTest()

Adds a set of tests based on pattern matching.

Returns:

a new instance of a batch test.

Since:

Ant 1.2

See Also:

BatchTest

addFormatter

public void addFormatter(FormatterElement fe)

Add a new formatter to all tests of this task.

Parameters:

fe - formatter element

Since:

Ant 1.2

setIncludeantruntime

public void setIncludeantruntime(boolean b)

If true, include ant.jar, optional.jar and junit.jar in the forked VM.

Parameters:

b - include ant run time yes or no

Since:

Ant 1.5

setShowOutput

public void setShowOutput(boolean showOutput)

If true, send any output generated by tests to Ant's logging system as well as to the formatters. By default only the formatters receive the output.

Output will always be passed to the formatters and not by shown by default. This option should for example be set for tests that are interactive and prompt the user to do something.

Parameters:

showOutput - if true, send output to Ant's logging system too

Since:

Ant 1.5

addAssertions

public void addAssertions(Assertions asserts)

Assertions to enable in this program (if fork=true)

Parameters:

asserts - assertion set

Since:

Ant 1.6

createPermissions

public Permissions createPermissions()

Sets the permissions for the application run inside the same JVM.

Returns:

.

Since:

Ant 1.6

setTempdir

public void setTempdir(java.io.File tmpDir)

Where Ant should place temporary files.

Parameters:

tmpDir - location where temporary files should go to

Since:

Ant 1.6

init

public void init()

Adds the jars or directories containing Ant, this task and JUnit to the classpath - this should make the forked JVM work without having to specify them directly.

Overrides:

init in class Task

Since:

Ant 1.4

execute

public void execute()
             throws BuildException

Runs the testcase.

Overrides:

execute in class Task

Throws:

BuildException - in case of test failures or errors

Since:

Ant 1.2

execute

protected void execute(JUnitTest arg)
                throws BuildException

Run the tests.

Parameters:

arg - one JunitTest

Throws:

BuildException - in case of test failures or errors

execute

protected void execute(java.util.List tests)
                throws BuildException

Execute a list of tests in a single forked Java VM.

BuildException

handleOutput

protected void handleOutput(java.lang.String output)

Pass output sent to System.out to the TestRunner so it can collect ot for the formatters.

Overrides:

handleOutput in class Task

Parameters:

output - output coming from System.out

Since:

Ant 1.5

handleInput

protected int handleInput(byte[] buffer,
                          int offset,
                          int length)
                   throws java.io.IOException

Description copied from class: Task

Handle an input request by this task

Overrides:

handleInput in class Task

Parameters:

buffer - the buffer into which data is to be read.

offset - the offset into the buffer at which data is stored.

length - the amount of data to read

Returns:

the number of bytes read

Throws:

java.io.IOException - if the data cannot be read

Since:

Ant 1.6

See Also:

Task.handleInput(byte[], int, int)

handleFlush

protected void handleFlush(java.lang.String output)

Pass output sent to System.out to the TestRunner so it can collect ot for the formatters.

Overrides:

handleFlush in class Task

Parameters:

output - output coming from System.out

Since:

Ant 1.5.2

handleErrorOutput

public void handleErrorOutput(java.lang.String output)

Pass output sent to System.err to the TestRunner so it can collect it for the formatters.

Overrides:

handleErrorOutput in class Task

Parameters:

output - output coming from System.err

Since:

Ant 1.5

handleErrorFlush

public void handleErrorFlush(java.lang.String output)

Pass output sent to System.err to the TestRunner so it can collect it for the formatters.

Overrides:

handleErrorFlush in class Task

Parameters:

output - coming from System.err

Since:

Ant 1.5.2

createWatchdog

protected ExecuteWatchdog createWatchdog()
                                  throws BuildException

Returns:

null if there is a timeout value, otherwise the watchdog instance.

Throws:

BuildException - under unspecified circumstances

Since:

Ant 1.2

getDefaultOutput

protected java.io.OutputStream getDefaultOutput()

Get the default output for a formatter.

Returns:

default output stream for a formatter

Since:

Ant 1.3

getIndividualTests

protected java.util.Enumeration getIndividualTests()

Merge all individual tests from the batchtest with all individual tests and return an enumeration over all JUnitTest.

Returns:

enumeration over individual tests

Since:

Ant 1.3

allTests

protected java.util.Enumeration allTests()

return an enumeration listing each test, then each batchtest

Returns:

enumeration

Since:

Ant 1.3

getOutput

protected java.io.File getOutput(FormatterElement fe,
                                 JUnitTest test)

If the formatter sends output to a file, return that file. null otherwise.

Parameters:

fe - formatter element

test - one JUnit test

Returns:

file reference

Since:

Ant 1.3

addClasspathEntry

protected void addClasspathEntry(java.lang.String resource)

Search for the given resource and add the directory or archive that contains it to the classpath.

Doesn't work for archives in JDK 1.1 as the URL returned by getResource doesn't contain the name of the archive.

Parameters:

resource - resource that one wants to lookup

Since:

Ant 1.4

getCommandline

protected CommandlineJava getCommandline()

Since:

Ant 1.6.2

executeOrQueue

protected java.util.Collection executeOrQueue(java.util.Enumeration testList,
                                              boolean runIndividual)

Executes all tests that don't need to be forked (or all tests if the runIndividual argument is true. Returns a collection of lists of tests that share the same VM configuration and haven't been executed yet.

Since:

1.6.2

actOnTestResult

protected void actOnTestResult(int exitValue,
                               boolean wasKilled,
                               JUnitTest test,
                               java.lang.String name)

Logs information about failed tests, potentially stops processing (by throwing a BuildException) if a failure/error occured or sets a property.

Since:

Ant 1.6.2