How to run only one unit test class using Gradle - unit-testing

I am new to Gradle. I use Gradle 1.10 and Ubuntu 13.
I want to know if there's any command to execute only one unit test class, similar to testOnly in SBT.

To run a single test class Airborn's answer is good.
With using some command line options, which found here, you can simply do something like this.
gradle test --tests org.gradle.SomeTest.someSpecificFeature
gradle test --tests '*SomeTest.someSpecificFeature'
gradle test --tests '*SomeSpecificTest'
gradle test --tests 'all.in.specific.package*'
gradle test --tests '*IntegTest'
gradle test --tests '*IntegTest*ui*'
gradle test --tests '*IntegTest.singleMethod'
gradle someTestTask --tests '*UiTest' someOtherTestTask --tests '*WebTest*ui'
From version 1.10 of gradle it supports selecting tests, using a test filter. For example,
apply plugin: 'java'
test {
filter {
//specific test method
includeTestsMatching "org.gradle.SomeTest.someSpecificFeature"
//specific test method, use wildcard for packages
includeTestsMatching "*SomeTest.someSpecificFeature"
//specific test class
includeTestsMatching "org.gradle.SomeTest"
//specific test class, wildcard for packages
includeTestsMatching "*.SomeTest"
//all classes in package, recursively
includeTestsMatching "com.gradle.tooling.*"
//all integration tests, by naming convention
includeTestsMatching "*IntegTest"
//only ui tests from integration tests, by some naming convention
includeTestsMatching "*IntegTest*ui"
}
}
For multi-flavor environments (a common use-case for Android), check this answer, as the --tests argument will be unsupported and you'll get an error.

In versions of Gradle prior to 5, the test.single system property can be used to specify a single test.
You can do gradle -Dtest.single=ClassUnderTestTest test if you want to test single class or use regexp like gradle -Dtest.single=ClassName*Test test you can find more examples of filtering classes for tests under this link.
Gradle 5 removed this option, as it was superseded by test filtering using the --tests command line option.

In case you have a multi-module project :
let us say your module structure is
root-module
-> a-module
-> b-module
and the test(testToRun) you are looking to run is in b-module, with full path : com.xyz.b.module.TestClass.testToRun
As here you are interested to run the test in b-module, so you should see the tasks available for b-module.
./gradlew :b-module:tasks
The above command will list all tasks in b-module with description.
And in ideal case, you will have a task named test to run the unit tests in that module.
./gradlew :b-module:test
Now, you have reached the point for running all the tests in b-module, finally you can pass a parameter to the above task to run tests which matches the certain path pattern
./gradlew :b-module:test --tests "com.xyz.b.module.TestClass.testToRun"
Now, instead of this if you run
./gradlew test --tests "com.xyz.b.module.TestClass.testToRun"
It will run the test task for both module a and b, which might result in failure as there is nothing matching the above pattern in a-module.

Please note that --tests option may not work if you have different build types/flavors (fails with Unknown command-line option '--tests'). In this case, it's necessary to specify the particular test task (e.g. testProdReleaseUnitTest instead of just test)

After much figuring out, the following worked for me:
gradle test --tests "a.b.c.MyTestFile.mySingleTest"

For multi modules projects it's necessary to use module's name and buildType:
./gradlew :module_name:testDebugUnitTest --tests com.package_name.TestsClass.*
To run some test method the same command, but with test's name:
./gradlew :module_name:testDebugUnitTest --tests com.package_name.TestsClass.test

Below is the command to run a single test class using gradlew command line option:
gradlew.bat Connected**your bundleVariant**AndroidTest -Pandroid.testInstrumentationRunnerArguments.class=com.example.TestClass
Below example to run class com.example.TestClass with variant Variant_1:
gradlew.bat ConnectedVariant_1AndroidTest -Pandroid.testInstrumentationRunnerArguments.class=com.example.TestClass

Run a single test called MyTest:
./gradlew app:testDebug --tests=com.example.MyTest

You should try to add asteriks (*) to the end.
gradle test --tests "com.a.b.c.*"

In my case, my eclipse java compiler warnings were set too high, and eclipse was not recognizing my class as valid for execution. Updating my compiler settings fixed the problem. You can read more about it here: annotation-nonnull-cannot-be-resolved

This worked for me
Release case:
gradle testReleaseUnitTest --tests testClass
Debug case:
gradle testDebugUnitTest --tests AsyncExecutorTest
You can see de projects with: gradle -q projects and move to the project where is the class to test

Related

How to exclude tagged tests in Gradle Kotlin Build Script?

Having the following task registered in a gradle build script:
tasks.register<Test>("unitTest") {
useJUnitPlatform {
excludeTags("integrationTest")
}
}
And the tests tagged with
import org.junit.jupiter.api.Tag
#Tag("integrationTest")
class MyIntegrationTest {
...
}
./gradlew unitTest still does run the tagged integration-test as well, I tried several other options provided by the gradle documentation to exclude the integration tests, though nothing seemed to work by now.

How to run a specific unit test in Rust?

I have unit tests in a package named school-info and there is a test function called repeat_students_should_not_get_full_marks.
I can run all tests in the module by cargo test --package school_info.
cargo test test-name will match and run tests which contain test_name though this wasn't helpful.
How can I run only the test repeat_students_should_not_get_full_marks without running all the tests? I could not find a command in the documentation to do it.
Using cargo test test-name filters tests that contain test-name. It is possible that it can run multiple tests. It doesn't matter if the test function is in some mod or not, it still able to execute multiple test.
You can avoid this by adding -- --exact as argument.
If your test is not in any mod you can simply execute like this:
cargo test test_fn_name -- --exact
Otherwise you need to provide test with full namespace:
cargo test test_mod_name::test_fn_name -- --exact
For your case the solution will be :
cargo test --package school_info repeat_students_should_not_get_full_marks -- --exact

launch one jasmine test with grunt and karma?

I have a big web project with many javascript Jasmine unit tests.
In that web project, i use grunt, karma and jasmine.
Is there any way to launch only one test javascript with grunt with a command line ?
Launching all tests is long, so how to do that without modify my gruntfile.js or my karma-unit.conf.js ??
I tried the following command, but it is more a hack than a real solution :
karma run -- --grep=filteredtestexpr
I am not sure of the best way to specify which test to run from the command line. But it seems like your problem can be solved with the following two pointers:
Change the name of a test from it to iit and karma will run only that test (actually all iit tests).
Change describe to ddescribe to run the entire describe block.
Also, use xit and xdescribe to explicitly exclude tests.

How to run single test in grails-core project using Gradle?

I'm trying to add a new test case to existing test org.codehaus.groovy.grails.web.mapping.ReverseUrlMappingTests in grails-test-suite-web submodule of grails-core project.
https://github.com/grails/grails-core/blob/master/grails-test-suite-web/src/test/groovy/org/grails/web/mapping/ReverseUrlMappingTests.groovy
I have a problem with running single test case using Gradle. When I do:
./gradlew -Dtest.single=ReverseUrlMappingTests :grails-test-suite-web:test
It ends with:
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':test'.
> Could not find matching test for pattern: ReverseUrlMappingTests
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
This test can be run in full test cycle ./gradlew test but it's waste of the time when we wanna red-green-refactor only one simple test case. I also noticed that the same problem occurs when I try to run in the same manner spock.lang.Specification subclass test.
Here's my question: is it possible to run single grails-core test with Gradle?
It's grails-core 2.4.x branch clone
The question has been edited to indicate that the test is on the 2.4.x branch, which affects the answer. I have made relevant changes below.
Something like this will work...
./gradlew :g-t-s-w:test --tests *ReverseUrlMappingTests*
When you do that, you are still going to be running some other tests because of the way our build is written. If you want to get rid of them you can comment out the following:
test.dependsOn execIsolatedTests
That is in grails-test-suite-web/build.gradle at https://github.com/grails/grails-core/blob/644233cfff266f391c44ef3ec56036a3b1c9bb19/grails-test-suite-web/build.gradle#L98
You could also do something like this...
./gradlew -DsingleTest.single=ReverseUrlMappingTests grails-test-suite-web:singleTest

Is it possible to run a single test out of Scala's test suite?

It is possible to run Scala's partest test suite with something like ant test, but is it possible to just rerun a single, failed test?
Additionally, is it possible to run only tests which have failed in a test run before?
If you are referring to the Scala repository build and the partest test suite, after having run the default ant build task, you can either run:
test/partest --failed
to run the last set of tests that failed, or:
test/partest test/files/<folder>/<testname>
This assumes you have previously done a:
test/partest --all
or called partest for some other test category.