Reputation: 9934

Run a single test method with maven

I know you can run all the tests in a certain class using:

mvn test -Dtest=classname

But I want to run an individual method and -Dtest=classname.methodname doesn't seem to work.

Upvotes: 733

Answers (14)

deirdreamuel

Reputation: 857

First you need to clean your maven project

mvn clean

then you can run specific file and function using

mvn test -Dtest=testClassName#testCaseName

Upvotes: 13

Sorter

Reputation: 10230

You need to specify the JUnit test class and its method to be executed.

mvn test -Dtest=com.mycompany.AppTest#testMethod

https://metamug.com/article/java/build-run-java-maven-project-command-line.html#running-unit-tests

Upvotes: 7

Amit

Reputation: 34793

Run a single test method from a test class.

mvn test -Dtest=Test1#methodname

Other related use-cases

mvn test // Run all the unit test classes
mvn test -Dtest=Test1 // Run a single test class
mvn test -Dtest=Test1,Test2 // Run multiple test classes
mvn test -Dtest=Test1#testFoo* // Run all test methods that match pattern 'testFoo*' from a test class.
mvn test -Dtest=Test1#testFoo*+testBar* // Run all test methods match pattern 'testFoo*' and 'testBar*' from a test class.

Upvotes: 36

jwpol

Reputation: 1485

I tried several solutions provided in this thread, however they were not working for module which depends on a different one. In that case I had to run mvn from the root-module with additional parameters: -am (--also-make), which tells maven to built modules which your test module depends on and -DfailIfNoTests=false, otherwise "No tests were executed!" error appears.

mvn test -pl B -Dtest=MyTestClass#myTest -am -DfailIfNoTests=false

pom.xml section in root:

<modules>
    <module>A</module>
    <module>B</module>
<modules>

B depends on A.

Upvotes: 11

Mudit Srivastava

Reputation: 10076

To run a single test method in Maven, you need to provide the command as:

mvn test -Dtest=TestCircle#xyz test

where TestCircle is the test class name and xyz is the test method.

Wild card characters also work; both in the method name and class name.

If you're testing in a multi-module project, specify the module that the test is in with -pl <module-name>.

For integration tests use it.test=... option instead of test=...:

mvn -pl <module-name> -Dit.test=TestCircle#xyz integration-test

Upvotes: 985

bsk

Reputation: 31

As of surefire plugin version 2.22.1 (possibly earlier) you can run single test using testnames property when using testng.xml

Given a following testng.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="Suite">
    <test name="all-tests">
        <classes>
            <class name="server.Atest"/>
            <class name="server.Btest"/>
            <class name="server.Ctest"/>
        </classes>
    </test>
    <test name="run-A-test">
        <classes>
            <class name="server.Atest"/>
        </classes>
    </test>
    <test name="run-B-test">
        <classes>
            <class name="server.Btest"/>
        </classes>
    </test>
    <test name="run-C-test">
        <classes>
            <class name="server.Ctest"/>
        </classes>
    </test>
</suite>

with the pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    [...]
    <properties>
        <selectedTests>all-tests</selectedTests>
    </properties>
    [...]
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>2.22.1</version>
            <configuration>
                <suiteXmlFiles>
                    <file>src/test/resources/testng.xml</file>
                </suiteXmlFiles>
                <properties>
                    <property>
                        <name>testnames</name>
                        <value>${selectedTests}</value>
                    </property>
                </properties>
            </configuration>
        </plugin>
    </plugins>
    [...]
</project>

From command line

mvn clean test -DselectedTests=run-B-test

Further reading - Maven surefire plugin using testng

Upvotes: 3

Nazmul Hoque Shafin

Reputation: 369

You can run specific test class(es) and method(s) using the following syntax:

full package : mvn test -Dtest="com.oracle.tests.**"

all method in a class : mvn test -Dtest=CLASS_NAME1

single method from single class :mvn test -Dtest=CLASS_NAME1#METHOD_NAME1

multiple method from multiple class : mvn test -Dtest=CLASS_NAME1#METHOD_NAME1,CLASS_NAME2#METHOD_NAME2

Upvotes: 13

Duccio Fabbri

Reputation: 1008

There is an issue with surefire 2.12. This is what happen to me changing maven-surefire-plugin from 2.12 to 2.11:

mvn test -Dtest=DesignRulesTest

Result:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.12:test (default-test) on project pmd: No tests were executed!
mvn test -Dtest=DesignRulesTest

Result: [INFO] --- maven-surefire-plugin:2.11:test (default-test) @ pmd --- ... Running net.sourceforge.pmd.lang.java.rule.design.DesignRulesTest Tests run: 5, Failures: 0, Errors: 0, Skipped: 4, Time elapsed: 4.009 sec

Upvotes: 36

vikas

Reputation: 1506

This command works !! mvn "-DTest=JoinTeamTestCases#validateJoinTeam" test Note that "-DTest" starts with UPPER CASE 'T'.

Upvotes: 17

Tim O'Brien

Reputation: 9861

You can run a single test class, but not a single method within a test class. You use the simple name of the class not the fully-qualified name of the class. So, if you have a test in "org.sonatype.test.MyTest" and that is the only test you want to run, your command line would look like this:

mvn test -Dtest=MyTest

Upvotes: -5

Prasanth Kumar Diddi

Reputation: 277

Running a set of methods in a Single Test Class With version 2.7.3, you can run only n tests in a single Test Class.

NOTE : it's supported for junit 4.x and TestNG.

You must use the following syntax

mvn -Dtest=TestCircle#mytest test

You can use patterns too

mvn -Dtest=TestCircle#test* test

As of surefire 2.12.1, you can select multiple methods (JUnit4X only at this time, patches welcome)

mvn -Dtest=TestCircle#testOne+testTwo test

Check this link about single tests

Upvotes: 18

Wesley Hartford

Reputation: 426

The test parameter mentioned by tobrien allows you to specify a method using a # before the method name. This should work for JUnit and TestNG. I've never tried it, just read it on the Surefire Plugin page:

Specify this parameter to run individual tests by file name, overriding the includes/excludes parameters. Each pattern you specify here will be used to create an include pattern formatted like **/${test}.java, so you can just type "-Dtest=MyTest" to run a single test called "foo/MyTest.java". This parameter overrides the includes/excludes parameters, and the TestNG suiteXmlFiles parameter. since 2.7.3 You can execute a limited number of method in the test with adding #myMethod or #my*ethod. Si type "-Dtest=MyTest#myMethod" supported for junit 4.x and testNg

Upvotes: 4