TestNG Ant Task

You define the TestNG ant task as follows:

<taskdef resource="testngtasks" classpath="testng.jar"/>

This task runs TestNG tests and is always run in a forked JVM. It accepts the following attributes:

Attribute Description Required
classfilesetref A reference to a ResourceCollection containing the test classes to be run. Only File based ResourceCollections are supported (ie. FileSet).  
classpath A PATH-like structure for the tests to be run.  
classpathref A reference to a PATH-like structure for the tests to be run.  
configFailurePolicy Whether TestNG should continue to execute the remaining tests in the suite or skip them if an @Before* method fails. No. Defaults to skip
dataProviderThreadCount The number of threads to use for data providers for this run. Ignored unless the parallel mode is also specified. 1
delegateCommandSystemProperties Pass the command line properties as system properties. No. Defaults to false
dumpCommand Print the TestNG launcher command. No. Defaults to false
failureProperty The name of a property to set in the event of a failure. It is used only if the haltonfailure is not set. No.
haltonfailure Stop the build process if a failure has occurred during the test run. No. Defaults to false
haltonskipped Stop the build process if there is at least on skipped test. No. Defaults to false
groups The list of groups to run, separated by spaces or commas.  
excludedgroups The list of groups to exclude, separated by spaces or commas  
jvm The JVM to use, which will be run by Runtime.exec() java
listeners   No.
methods A comma separated list of fully qualified class name and method. For e.g., com.example.Foo.f1,com.example.Bar.f2. No.
mode Either “testng”, “junit” or “mixed”. Whether TestNG should run only TestNG tests, JUnit tests or both. No. Defaults to testng.
outputdir Directory for reports output. No. Defaults to test-output.
skippedProperty The name of a property to set in the event of a skipped test. It is used only if the haltonskipped is not set. No.
suiteRunnerClass A fully qualified name of a TestNG starter. No. Defaults to org.testng.TestNG
suiteThreadPoolSize The size of a thread pool to run suites. No. Defaults to 1.
parallel The parallel mode to use for running the tests - either methods or tests No - if not present, parallel mode will not be selected
suitename Sets the default name of the test suite, if one is not specified in a suite xml file or in the source code No. Defaults to “Ant suite”
testJar Path to a jar containing tests and a suite definition.  
testname Sets the default name of the test, if one is not specified in a suite xml file or in the source code No. defaults to “Ant test”
testnames A comma separated list of test names, as defined in the <test> tag. Only these tests will be run. No. defaults to “Ant test”
threadCount The number of threads to use for this run. Ignored unless the parallel mode is also specified. 1
timeOut The maximum time out in milliseconds that all the tests should run under.  
useDefaultListeners Whether the default listeners and reporters should be used. Defaults to true.
workingDir The directory where the ant task should change to before running TestNG.  
xmlfilesetref A reference to a ResourceCollection containing the suite definitions to be run. Only File based ResourceCollections are supported (i.e., FileSet).  
xmlPathInJar The path of the XML file inside the jar file, only applicable if testJar was specified testng.xml

[!TIP] One of attributes classpath, classpathref or nested <classpath> must be used for providing the tests classpath.

[!TIP] One of the attributes xmlfilesetref, classfilesetref or nested <xmlfileset>, respectively <classfileset> must be used for providing the tests.

TestNG modes

The TestNG mode gets applied when tests are passed to TestNG using classfilesetref, methods or nested <classfileset> and tells TestNG what kind of tests it should look for and run:

[!NOTE] junit and mixed modes require the JUnit jar file on the classpath.

Nested Elements


The <testng> task supports a nested <classpath> element that represents a PATH-like structure.


The location of bootstrap class files can be specified using this PATH-like structure - will be ignored if fork is not set.


The suite definitions (testng.xml) can be passed to the task with a FileSet structure.


TestNG can also run directly on classes, also supplied with a FileSet structure.


Additional parameters may be passed to the new VM via nested <jvmarg> elements. For example:

    <jvmarg value="-Djava.compiler=NONE" />
    <!-- ... -->


Use nested <sysproperty> elements to specify system properties required by the class. These properties will be made available to the virtual machine during the execution of the test. The attributes for this element are the same as for environment variables:

    <sysproperty key="basedir" value="${basedir}"/>
    <!-- ... -->

will run the test and make the basedir property available to the test.


You may also use a nested <propertyset> element to specify a set of system properties that are defined outside of the TestNG ant task. This allows for more flexible definitions of system properties, for instance selecting all properties with a specific prefix or matching a regex. See the PropertySet page in the Ant manual for full details. Here’s a simple example:

<project name="Hello World Project">
    <property name="myprop1" value="value 1"/>
    <property name="myprop2" value="value 2"/>

    <propertyset id="propset1">
        <propertyref name="myprop1"/>
        <propertyref name="myprop2"/>

    <testng outputdir="${testng.report.dir}" classpathref="run.cp">
        <xmlfileset dir="${test15.dir}" includes="testng-single3.xml"/>
        <propertyset refid="propset1"/>

In this case, the system properties named “myprop1” and “myprop2” are passed along to the TestNG process.


An inner <reporter> element is an alternative way to inject a custom report listener allowing the user to set custom properties in order to fine-tune the behavior of the reporter at run-time. The element has one classname attribute which is mandatory, indicating the class of the custom listener. In order to set the properties of the reporter, the <reporter> element can contain several nested <property> elements which will provide the name and value attributes as seen below:

    <!--... -->
    <reporter classname="com.test.MyReporter">
        <property name="methodFilter" value="*insert*"/>
        <property name="enableFiltering" value="true"/>
    <!--... -->
public class MyReporter {

  public String getMethodFilter() { /* code */ }
  public void setMethodFilter(String methodFilter) { /* code */ }
  public boolean isEnableFiltering() { /* code */ }
  public void setEnableFiltering(boolean enableFiltering) { /* code */ }
  // code

You have to consider though that for the moment only a limited set of property types are supported:


It is possible to specify environment variables to pass to the TestNG forked virtual machine via nested <env> elements. For a description of the <env> element’s attributes, see the description in the exec task.


Suite xml

<testng classpathref="run.cp"  outputDir="${testng.report.dir}"  sourcedir="${test.src.dir}"  haltOnfailure="true">
   <xmlfileset dir="${test14.dir}" includes="testng.xml"/>

Class FileSet

<testng classpathref="run.cp" outputDir="${testng.report.dir}" haltOnFailure="true" verbose="2">
    <classfileset dir="${test.build.dir}" includes="**/*.class" />