In Gradle, we can pass an --tests option to run a single unit test class. Read this Gradle Test Filtering.
gradle test --test TestClass
P.S Tested with Gradle 6.7.1
1. Run a single test class
Review a simple unit test.
package com.mkyong.security.db;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertTrue;
public class DummyTest {
@Test
void test_a_ok() {
assertTrue(true);
}
@Test
void test_b_ok() {
assertTrue(true);
}
}
To run only the above unit test, try gradle test --tests DummyTest.
gradle test --tests DummyTest
2. Gradle –tests examples
I added the below configuration to display the Gradle test’s output in the console
test {
testLogging {
events "passed", "skipped", "failed", "standardOut", "standardError"
}
}
2.1 Run all tests from the test class DummyTest.
gradle test --tests DummyTest
> Task :test
DummyTest > test_a_ok() PASSED
DummyTest > test_b_ok() PASSED
By default, Gradle skips the previously passed tests, and we can use cleanTest to force Gradle always to run the previously passed tests, even the tests are unmodified.
gradle cleanTest test --tests DummyTest
2.2 Run a single test method.
gradle test --tests DummyTest.test_b_ok
> Task :test
DummyTest > test_b_ok() PASSED
2.3 Gradle test supports wildcard *, enclose the wildcard with a single quote (bash shell?) or double quotes (zsh shell).
# if single quote not working, try double quotes, depends on shell
gradle test --tests `Dummy*`
gradle test --tests "Dummy*"
> Task :test
DummyTest > test_a_ok() PASSED
DummyTest > test_b_ok() PASSED
2.4 Fully-qualified name pattern.
gradle test --tests com.mkyong.security.db.DummyTest
2.5 Run all tests from a package.
gradle test --tests "com.mkyong.security.*"
2.6 The --tests and the continuous build
gradle test --continuous --tests DummyTest
This will fail the build in a multi-module project, if in any of the other modules the test name (pattern) is not found. The article should explain how to avoid that.
Hello, in your first code segment it says
gradle test –test TestClass
despite it saying
--testseverywhere else.Thanks!