Package org.gradle.api.tasks.testing

Class Test

  • All Implemented Interfaces:
    java.lang.Comparable<Task>, org.gradle.api.internal.DynamicObjectAware, org.gradle.api.internal.IConventionAware, org.gradle.api.internal.TaskInternal, Named, ExtensionAware, Reporting<TestTaskReports>, Task, PatternFilterable, VerificationTask, JavaForkOptions, ProcessForkOptions, Configurable<Task>
    @NonNullApi
@CacheableTask
public abstract class Test
extends AbstractTestTask
implements JavaForkOptions, PatternFilterable
    Executes JUnit (3.8.x, 4.x or 5.x) or TestNG tests. Test are always run in (one or more) separate JVMs.

    The sample below shows various configuration options. 

     plugins {
     id 'java' // adds 'test' task
 }

 test {
   // discover and execute JUnit4-based tests
   useJUnit()

   // discover and execute TestNG-based tests
   useTestNG()

   // discover and execute JUnit Platform-based tests
   useJUnitPlatform()

   // set a system property for the test JVM(s)
   systemProperty 'some.prop', 'value'

   // explicitly include or exclude tests
   include 'org/foo/**'
   exclude 'org/boo/**'

   // show standard out and standard error of the test JVM(s) on the console
   testLogging.showStandardStreams = true

   // set heap size for the test JVM(s)
   minHeapSize = "128m"
   maxHeapSize = "512m"

   // set JVM arguments for the test JVM(s)
   jvmArgs '-XX:MaxPermSize=256m'

   // listen to events in the test execution lifecycle
   beforeTest { descriptor ->
      logger.lifecycle("Running test: " + descriptor)
   }

   // fail the 'test' task on the first test failure
   failFast = true

   // skip an actual test execution
   dryRun = true

   // listen to standard out and standard error of the test JVM(s)
   onOutput { descriptor, event ->
      logger.lifecycle("Test: " + descriptor + " produced standard out/err: " + event.message )
   }
 }

    The test process can be started in debug mode (see getDebug()) in an ad-hoc manner by supplying the `--debug-jvm` switch when invoking the build. 

     gradle someTestTask --debug-jvm

    • Constructor Detail

      • Test

        public Test()

    • Method Detail

      • getWorkingDir

        @Internal
public java.io.File getWorkingDir()
        Returns the working directory for the process. Defaults to the project directory.
        Specified by:
        getWorkingDir in interface ProcessForkOptions
        Returns:
        The working directory. Never returns null.

      • setWorkingDir

        public void setWorkingDir​(java.io.File dir)
        Sets the working directory for the process.
        Specified by:
        setWorkingDir in interface ProcessForkOptions
        Parameters:
        dir - The working directory. Must not be null.

      • setWorkingDir

        public void setWorkingDir​(java.lang.Object dir)
        Sets the working directory for the process. The supplied argument is evaluated as per Project.file(Object).
        Specified by:
        setWorkingDir in interface ProcessForkOptions
        Parameters:
        dir - The working directory. Must not be null.

      • workingDir

        public Test workingDir​(java.lang.Object dir)
        Sets the working directory for the process. The supplied argument is evaluated as per Project.file(Object).
        Specified by:
        workingDir in interface ProcessForkOptions
        Parameters:
        dir - The working directory. Must not be null.
        Returns:
        this

      • executable

        public Test executable​(java.lang.Object executable)
        Sets the name of the executable to use.
        Specified by:
        executable in interface ProcessForkOptions
        Parameters:
        executable - The executable. Must not be null.
        Returns:
        this

      • setExecutable

        public void setExecutable​(java.lang.String executable)
        Sets the name of the executable to use.
        Specified by:
        setExecutable in interface ProcessForkOptions
        Parameters:
        executable - The executable. Must not be null.

      • setExecutable

        public void setExecutable​(java.lang.Object executable)
        Sets the name of the executable to use.
        Specified by:
        setExecutable in interface ProcessForkOptions
        Parameters:
        executable - The executable. Must not be null.

      • getSystemProperties

        public java.util.Map<java.lang.String,​java.lang.Object> getSystemProperties()
        Returns the system properties which will be used for the process.
        Specified by:
        getSystemProperties in interface JavaForkOptions
        Returns:
        The system properties. Returns an empty map when there are no system properties.

      • setSystemProperties

        public void setSystemProperties​(java.util.Map<java.lang.String,​?> properties)
        Sets the system properties to use for the process.
        Specified by:
        setSystemProperties in interface JavaForkOptions
        Parameters:
        properties - The system properties. Must not be null.

      • systemProperties

        public Test systemProperties​(java.util.Map<java.lang.String,​?> properties)
        Adds some system properties to use for the process.
        Specified by:
        systemProperties in interface JavaForkOptions
        Parameters:
        properties - The system properties. Must not be null.
        Returns:
        this

      • systemProperty

        public Test systemProperty​(java.lang.String name,
                           java.lang.Object value)
        Adds a system property to use for the process.
        Specified by:
        systemProperty in interface JavaForkOptions
        Parameters:
        name - The name of the property
        value - The value for the property. May be null.
        Returns:
        this

      • getBootstrapClasspath

        public FileCollection getBootstrapClasspath()
        Returns the bootstrap classpath to use for the process. The default bootstrap classpath for the JVM is used when this classpath is empty.
        Specified by:
        getBootstrapClasspath in interface JavaForkOptions
        Returns:
        The bootstrap classpath. Never returns null.

      • setBootstrapClasspath

        public void setBootstrapClasspath​(FileCollection classpath)
        Sets the bootstrap classpath to use for the process. Set to an empty classpath to use the default bootstrap classpath for the specified JVM.
        Specified by:
        setBootstrapClasspath in interface JavaForkOptions
        Parameters:
        classpath - The classpath. Must not be null. Can be empty.

      • bootstrapClasspath

        public Test bootstrapClasspath​(java.lang.Object... classpath)
        Adds the given values to the end of the bootstrap classpath for the process.
        Specified by:
        bootstrapClasspath in interface JavaForkOptions
        Parameters:
        classpath - The classpath.
        Returns:
        this

      • getMinHeapSize

        public java.lang.String getMinHeapSize()
        Returns the minimum heap size for the process, if any.
        Specified by:
        getMinHeapSize in interface JavaForkOptions
        Returns:
        The minimum heap size. Returns null if the default minimum heap size should be used.

      • getDefaultCharacterEncoding

        public java.lang.String getDefaultCharacterEncoding()
        Returns the default character encoding to use.
        Specified by:
        getDefaultCharacterEncoding in interface JavaForkOptions
        Returns:
        The default character encoding. Returns null if the default character encoding of this JVM should be used.

      • setDefaultCharacterEncoding

        public void setDefaultCharacterEncoding​(java.lang.String defaultCharacterEncoding)
        Sets the default character encoding to use. Note: Many JVM implementations support the setting of this attribute via system property on startup (namely, the file.encoding property). For JVMs where this is the case, setting the file.encoding property via JavaForkOptions.setSystemProperties(java.util.Map) or similar will have no effect as this value will be overridden by the value specified by JavaForkOptions.getDefaultCharacterEncoding().
        Specified by:
        setDefaultCharacterEncoding in interface JavaForkOptions
        Parameters:
        defaultCharacterEncoding - The default character encoding. Use null to use this JVM's default charset

      • setMinHeapSize

        public void setMinHeapSize​(java.lang.String heapSize)
        Sets the minimum heap size for the process. Supports the units megabytes (e.g. "512m") and gigabytes (e.g. "1g").
        Specified by:
        setMinHeapSize in interface JavaForkOptions
        Parameters:
        heapSize - The minimum heap size. Use null for the default minimum heap size.

      • getMaxHeapSize

        public java.lang.String getMaxHeapSize()
        Returns the maximum heap size for the process, if any.
        Specified by:
        getMaxHeapSize in interface JavaForkOptions
        Returns:
        The maximum heap size. Returns null if the default maximum heap size should be used.

      • setMaxHeapSize

        public void setMaxHeapSize​(java.lang.String heapSize)
        Sets the maximum heap size for the process. Supports the units megabytes (e.g. "512m") and gigabytes (e.g. "1g").
        Specified by:
        setMaxHeapSize in interface JavaForkOptions
        Parameters:
        heapSize - The heap size. Use null for the default maximum heap size.

      • getJvmArgs

        public java.util.List<java.lang.String> getJvmArgs()
        Returns the extra arguments to use to launch the JVM for the process. Does not include system properties and the minimum/maximum heap size.
        Specified by:
        getJvmArgs in interface JavaForkOptions
        Returns:
        The immutable list of arguments. Returns an empty list if there are no arguments.

      • setJvmArgs

        public void setJvmArgs​(java.util.List<java.lang.String> arguments)
        Sets the extra arguments to use to launch the JVM for the process. System properties and minimum/maximum heap size are updated.
        Specified by:
        setJvmArgs in interface JavaForkOptions
        Parameters:
        arguments - The arguments. Must not be null.

      • setJvmArgs

        public void setJvmArgs​(java.lang.Iterable<?> arguments)
        Sets the extra arguments to use to launch the JVM for the process. System properties and minimum/maximum heap size are updated.
        Specified by:
        setJvmArgs in interface JavaForkOptions
        Parameters:
        arguments - The arguments. Must not be null.

      • jvmArgs

        public Test jvmArgs​(java.lang.Iterable<?> arguments)
        Adds some arguments to use to launch the JVM for the process.
        Specified by:
        jvmArgs in interface JavaForkOptions
        Parameters:
        arguments - The arguments. Must not be null.
        Returns:
        this

      • jvmArgs

        public Test jvmArgs​(java.lang.Object... arguments)
        Adds some arguments to use to launch the JVM for the process.
        Specified by:
        jvmArgs in interface JavaForkOptions
        Parameters:
        arguments - The arguments.
        Returns:
        this

      • getEnableAssertions

        public boolean getEnableAssertions()
        Returns true if assertions are enabled for the process.
        Specified by:
        getEnableAssertions in interface JavaForkOptions
        Returns:
        true if assertions are enabled, false if disabled

      • setEnableAssertions

        public void setEnableAssertions​(boolean enabled)
        Enable or disable assertions for the process.
        Specified by:
        setEnableAssertions in interface JavaForkOptions
        Parameters:
        enabled - true to enable assertions, false to disable.

      • getDebug

        public boolean getDebug()
        Determines whether debugging is enabled for the test process. When enabled — debug = true — the process is started in a suspended state, listening on port 5005. You should disable parallel test execution when debugging and you will need to reattach the debugger occasionally if you use a non-zero value for getForkEvery().

        Since Gradle 5.6, you can configure the port and other Java debug properties via JavaForkOptions.debugOptions(Action).

        Specified by:
        getDebug in interface JavaForkOptions
        Returns:
        true when debugging is enabled, false to disable.

      • setDebug

        public void setDebug​(boolean enabled)
        Enable or disable debugging for the process. When enabled, the process is started suspended and listening on port 5005.

        The debug properties (e.g. the port number) can be configured in JavaForkOptions.debugOptions(Action).

        Specified by:
        setDebug in interface JavaForkOptions
        Parameters:
        enabled - true to enable debugging, false to disable.

      • getDebugOptions

        public JavaDebugOptions getDebugOptions()
        Returns the Java Debug Wire Protocol properties for the process. If enabled then the -agentlib:jdwp=... will be appended to the JVM arguments with the configuration from the parameter.
        Specified by:
        getDebugOptions in interface JavaForkOptions

      • setFailFast

        public void setFailFast​(boolean failFast)
        Enables fail fast behavior causing the task to fail on the first failed test.

      • getFailFast

        public boolean getFailFast()
        Indicates if this task will fail on the first failed test
        Returns:
        whether this task will fail on the first failed test

      • getDryRun

        @Incubating
@Input
public abstract Property<java.lang.Boolean> getDryRun()
        Indicates if this task will skip individual test execution.

        For JUnit 4 and 5, this will report tests that would have executed as skipped. For TestNG, this will report tests that would have executed as passed.

        Only versions of TestNG which support native dry-running are supported, i.e. TestNG 6.14 or later.

        Returns:
        property for whether this task will skip individual test execution
        Since:
        8.3

      • getAllJvmArgs

        public java.util.List<java.lang.String> getAllJvmArgs()
        Returns the full set of arguments to use to launch the JVM for the process. This includes arguments to define system properties, the minimum/maximum heap size, and the bootstrap classpath.
        Specified by:
        getAllJvmArgs in interface JavaForkOptions
        Returns:
        The immutable list of arguments. Returns an empty list if there are no arguments.

      • setAllJvmArgs

        public void setAllJvmArgs​(java.util.List<java.lang.String> arguments)
        Sets the full set of arguments to use to launch the JVM for the process. Overwrites any previously set system properties, minimum/maximum heap size, assertions, and bootstrap classpath.
        Specified by:
        setAllJvmArgs in interface JavaForkOptions
        Parameters:
        arguments - The arguments. Must not be null.

      • setAllJvmArgs

        public void setAllJvmArgs​(java.lang.Iterable<?> arguments)
        Sets the full set of arguments to use to launch the JVM for the process. Overwrites any previously set system properties, minimum/maximum heap size, assertions, and bootstrap classpath.
        Specified by:
        setAllJvmArgs in interface JavaForkOptions
        Parameters:
        arguments - The arguments. Must not be null.

      • getEnvironment

        @Internal
public java.util.Map<java.lang.String,​java.lang.Object> getEnvironment()
        The environment variables to use for the process. Defaults to the environment of this process.
        Specified by:
        getEnvironment in interface ProcessForkOptions
        Returns:
        The environment. Returns an empty map when there are no environment variables.

      • environment

        public Test environment​(java.util.Map<java.lang.String,​?> environmentVariables)
        Adds some environment variables to the environment for this process.
        Specified by:
        environment in interface ProcessForkOptions
        Parameters:
        environmentVariables - The environment variables. Must not be null.
        Returns:
        this

      • environment

        public Test environment​(java.lang.String name,
                        java.lang.Object value)
        Adds an environment variable to the environment for this process.
        Specified by:
        environment in interface ProcessForkOptions
        Parameters:
        name - The name of the variable.
        value - The value for the variable. Must not be null.
        Returns:
        this

      • setEnvironment

        public void setEnvironment​(java.util.Map<java.lang.String,​?> environmentVariables)
        Sets the environment variable to use for the process.
        Specified by:
        setEnvironment in interface ProcessForkOptions
        Parameters:
        environmentVariables - The environment variables. Must not be null.

      • copyTo

        public Test copyTo​(JavaForkOptions target)
        Copies these options to the given options.
        Specified by:
        copyTo in interface JavaForkOptions
        Parameters:
        target - The target options.
        Returns:
        this

      • getModularity

        public ModularitySpec getModularity()
        Returns the module path handling of this test task.
        Since:
        6.4

      • createTestExecutionSpec

        protected org.gradle.api.internal.tasks.testing.JvmTestExecutionSpec createTestExecutionSpec()
        Creates test execution specification. For internal use only.
        Specified by:
        createTestExecutionSpec in class AbstractTestTask
        Since:
        4.4

      • createTestExecuter

        protected org.gradle.api.internal.tasks.testing.TestExecuter<org.gradle.api.internal.tasks.testing.JvmTestExecutionSpec> createTestExecuter()
        Description copied from class: AbstractTestTask
        Creates test executer. For internal use only.
        Specified by:
        createTestExecuter in class AbstractTestTask

      • include

        public Test include​(java.lang.String... includes)
        Adds include patterns for the files in the test classes directory (e.g. '**/*Test.class')).
        Specified by:
        include in interface PatternFilterable
        Parameters:
        includes - a vararg list of include patterns
        Returns:
        this
        See Also:
        setIncludes(Iterable)

      • include

        public Test include​(java.lang.Iterable<java.lang.String> includes)
        Adds include patterns for the files in the test classes directory (e.g. '**/*Test.class')).
        Specified by:
        include in interface PatternFilterable
        Parameters:
        includes - a Iterable providing more include patterns
        Returns:
        this
        See Also:
        setIncludes(Iterable)

      • include

        public Test include​(Spec<FileTreeElement> includeSpec)
        Adds an include spec. This method may be called multiple times to append new specs. If includes are not provided, then all files in this container will be included. If includes are provided, then a file must match at least one of the include patterns or specs to be included.
        Specified by:
        include in interface PatternFilterable
        Parameters:
        includeSpec - the spec to add
        Returns:
        this
        See Also:
        Pattern Format

      • include

        public Test include​(Closure includeSpec)
        Adds an include spec. This method may be called multiple times to append new specs. The given closure is passed a FileTreeElement as its parameter. If includes are not provided, then all files in this container will be included. If includes are provided, then a file must match at least one of the include patterns or specs to be included.
        Specified by:
        include in interface PatternFilterable
        Parameters:
        includeSpec - the spec to add
        Returns:
        this
        See Also:
        Pattern Format

      • exclude

        public Test exclude​(java.lang.String... excludes)
        Adds exclude patterns for the files in the test classes directory (e.g. '**/*Test.class')).
        Specified by:
        exclude in interface PatternFilterable
        Parameters:
        excludes - a vararg list of exclude patterns
        Returns:
        this
        See Also:
        setExcludes(Iterable)

      • exclude

        public Test exclude​(java.lang.Iterable<java.lang.String> excludes)
        Adds exclude patterns for the files in the test classes directory (e.g. '**/*Test.class')).
        Specified by:
        exclude in interface PatternFilterable
        Parameters:
        excludes - a Iterable providing new exclude patterns
        Returns:
        this
        See Also:
        setExcludes(Iterable)

      • exclude

        public Test exclude​(Spec<FileTreeElement> excludeSpec)
        Adds an exclude spec. This method may be called multiple times to append new specs. If excludes are not provided, then no files will be excluded. If excludes are provided, then files must not match any exclude pattern to be processed.
        Specified by:
        exclude in interface PatternFilterable
        Parameters:
        excludeSpec - the spec to add
        Returns:
        this
        See Also:
        Pattern Format

      • exclude

        public Test exclude​(Closure excludeSpec)
        Adds an exclude spec. This method may be called multiple times to append new specs.The given closure is passed a FileTreeElement as its parameter. The closure should return true or false. Example: 
         copySpec {
   from 'source'
   into 'destination'
   //an example of excluding files from certain configuration:
   exclude { it.file in configurations.someConf.files }
 }
        If excludes are not provided, then no files will be excluded. If excludes are provided, then files must not match any exclude pattern to be processed.
        Specified by:
        exclude in interface PatternFilterable
        Parameters:
        excludeSpec - the spec to add
        Returns:
        this
        See Also:
        FileTreeElement

      • setTestNameIncludePatterns

        public Test setTestNameIncludePatterns​(java.util.List<java.lang.String> testNamePattern)
        Sets the test name patterns to be included in execution. Classes or method names are supported, wildcard '*' is supported. For more information see the user guide chapter on testing. For more information on supported patterns see TestFilter
        Overrides:
        setTestNameIncludePatterns in class AbstractTestTask

      • getTestClassesDirs

        @Internal
public FileCollection getTestClassesDirs()
        Returns the directories for the compiled test sources.
        Returns:
        All test class directories to be used.
        Since:
        4.0

      • setTestClassesDirs

        public void setTestClassesDirs​(FileCollection testClassesDirs)
        Sets the directories to scan for compiled test sources. Typically, this would be configured to use the output of a source set: 
         plugins {
     id 'java'
 }

 sourceSets {
    integrationTest {
       compileClasspath += main.output
       runtimeClasspath += main.output
    }
 }

 task integrationTest(type: Test) {
     // Runs tests from src/integrationTest
     testClassesDirs = sourceSets.integrationTest.output.classesDirs
     classpath = sourceSets.integrationTest.runtimeClasspath
 }
        Parameters:
        testClassesDirs - All test class directories to be used.
        Since:
        4.0

      • getIncludes

        @Internal
public java.util.Set<java.lang.String> getIncludes()
        Returns the include patterns for test execution.
        Specified by:
        getIncludes in interface PatternFilterable
        Returns:
        The include patterns. Returns an empty set when there are no include patterns.
        See Also:
        include(String...)

      • setIncludes

        public Test setIncludes​(java.lang.Iterable<java.lang.String> includes)
        Sets the include patterns for test execution.
        Specified by:
        setIncludes in interface PatternFilterable
        Parameters:
        includes - The patterns list
        Returns:
        this
        See Also:
        include(String...)

      • getExcludes

        @Internal
public java.util.Set<java.lang.String> getExcludes()
        Returns the exclude patterns for test execution.
        Specified by:
        getExcludes in interface PatternFilterable
        Returns:
        The exclude patterns. Returns an empty set when there are no exclude patterns.
        See Also:
        exclude(String...)

      • setExcludes

        public Test setExcludes​(java.lang.Iterable<java.lang.String> excludes)
        Sets the exclude patterns for test execution.
        Specified by:
        setExcludes in interface PatternFilterable
        Parameters:
        excludes - The patterns list
        Returns:
        this
        See Also:
        exclude(String...)

      • getTestFrameworkProperty

        public Property<org.gradle.api.internal.tasks.testing.TestFramework> getTestFrameworkProperty()
        Returns the configured TestFramework.
        Since:
        7.3

      • getTestFramework

        @Internal
public org.gradle.api.internal.tasks.testing.TestFramework getTestFramework()

      • testFramework

        public org.gradle.api.internal.tasks.testing.TestFramework testFramework​(@Nullable
                                                                         Closure testFrameworkConfigure)

      • useJUnit

        public void useJUnit​(@Nullable @DelegatesTo(JUnitOptions.class)
                     Closure testFrameworkConfigure)
        Specifies that JUnit4 should be used to discover and execute the tests with additional configuration.

        The supplied action configures an instance of JUnit4 specific options.

        Parameters:
        testFrameworkConfigure - A closure used to configure JUnit4 options.

      • useJUnit

        public void useJUnit​(Action<? super JUnitOptions> testFrameworkConfigure)
        Specifies that JUnit4 should be used to discover and execute the tests with additional configuration.

        The supplied action configures an instance of JUnit4 specific options.

        Parameters:
        testFrameworkConfigure - An action used to configure JUnit4 options.
        Since:
        3.5

      • useJUnitPlatform

        public void useJUnitPlatform()
        Specifies that JUnit Platform should be used to discover and execute the tests.

        Use this option if your tests use JUnit Jupiter/JUnit5.

        JUnit Platform supports multiple test engines, which allows other testing frameworks to be built on top of it. You may need to use this option even if you are not using JUnit directly.

        Since:
        4.6
        See Also:
        Configure JUnit Platform specific options.

      • useJUnitPlatform

        public void useJUnitPlatform​(Action<? super JUnitPlatformOptions> testFrameworkConfigure)
        Specifies that JUnit Platform should be used to discover and execute the tests with additional configuration.

        Use this option if your tests use JUnit Jupiter/JUnit5.

        JUnit Platform supports multiple test engines, which allows other testing frameworks to be built on top of it. You may need to use this option even if you are not using JUnit directly.

        The supplied action configures an instance of JUnit Platform specific options.

        Parameters:
        testFrameworkConfigure - A closure used to configure JUnit platform options.
        Since:
        4.6

      • useTestNG

        public void useTestNG​(@DelegatesTo(TestNGOptions.class)
                      Closure testFrameworkConfigure)
        Specifies that TestNG should be used to discover and execute the tests with additional configuration.

        The supplied action configures an instance of TestNG specific options.

        Parameters:
        testFrameworkConfigure - A closure used to configure TestNG options.

      • useTestNG

        public void useTestNG​(Action<? super TestNGOptions> testFrameworkConfigure)
        Specifies that TestNG should be used to discover and execute the tests with additional configuration.

        The supplied action configures an instance of TestNG specific options.

        Parameters:
        testFrameworkConfigure - An action used to configure TestNG options.
        Since:
        3.5

      • getStableClasspath

        @Classpath
protected FileCollection getStableClasspath()
        Returns the classpath to use to execute the tests.
        Since:
        6.6

      • getClasspath

        @Internal("captured by stableClasspath")
public FileCollection getClasspath()
        Returns the classpath to use to execute the tests.

      • setClasspath

        public void setClasspath​(FileCollection classpath)

      • isScanForTestClasses

        @Input
public boolean isScanForTestClasses()
        Specifies whether test classes should be detected. When true the classes which match the include and exclude patterns are scanned for test classes, and any found are executed. When false the classes which match the include and exclude patterns are executed.

      • setScanForTestClasses

        public void setScanForTestClasses​(boolean scanForTestClasses)

      • getForkEvery

        @Internal
public long getForkEvery()
        Returns the maximum number of test classes to execute in a forked test process. The forked test process will be restarted when this limit is reached.

        By default, Gradle automatically uses a separate JVM when executing tests.

        • A value of 0 (no limit) means to reuse the test process for all test classes. This is the default.
        • A value of 1 means that a new test process is started for every test class. This is very expensive.
        • A value of N means that a new test process is started after N test classes.
        This property can have a large impact on performance due to the cost of stopping and starting each test process. It is unusual for this property to be changed from the default.
        Returns:
        The maximum number of test classes to execute in a test process. Returns 0 when there is no maximum.

      • setForkEvery

        public void setForkEvery​(long forkEvery)
        Sets the maximum number of test classes to execute in a forked test process.

        By default, Gradle automatically uses a separate JVM when executing tests, so changing this property is usually not necessary.

        Parameters:
        forkEvery - The maximum number of test classes. Use 0 to specify no maximum.
        Since:
        8.1

      • setForkEvery

        @Deprecated
public void setForkEvery​(@Nullable
                         java.lang.Long forkEvery)
        Deprecated.
        Use setForkEvery(long) instead.
        Sets the maximum number of test classes to execute in a forked test process.

        By default, Gradle automatically uses a separate JVM when executing tests, so changing this property is usually not necessary.

        Parameters:
        forkEvery - The maximum number of test classes. Use null or 0 to specify no maximum.

      • getMaxParallelForks

        @Internal
public int getMaxParallelForks()
        Returns the maximum number of test processes to start in parallel.

        By default, Gradle executes a single test class at a time.

        • A value of 1 means to only execute a single test class in a single test process at a time. This is the default.
        • A value of N means that up to N test processes will be started to execute test classes. This can improve test execution time by running multiple test classes in parallel.
        This property cannot exceed the value of max-workers for the current build. Gradle will also limit the number of started test processes across all Test tasks.
        Returns:
        The maximum number of forked test processes.

      • setMaxParallelForks

        public void setMaxParallelForks​(int maxParallelForks)
        Sets the maximum number of test processes to start in parallel.

        By default, Gradle executes a single test class at a time but allows multiple Test tasks to run in parallel.

        Parameters:
        maxParallelForks - The maximum number of forked test processes. Use 1 to disable parallel test execution for this task.

      • getJavaLauncher

        public Property<JavaLauncher> getJavaLauncher()
        Configures the java executable to be used to run the tests.
        Since:
        6.7

      • getObjectFactory

        @Inject
protected ObjectFactory getObjectFactory()

      • getProviderFactory

        @Inject
protected ProviderFactory getProviderFactory()

      • getActorFactory

        @Inject
protected org.gradle.internal.actor.ActorFactory getActorFactory()

      • getProcessBuilderFactory

        @Inject
protected org.gradle.process.internal.worker.WorkerProcessFactory getProcessBuilderFactory()

      • getPatternSetFactory

        @Inject
protected org.gradle.internal.Factory<PatternSet> getPatternSetFactory()

      • getForkOptionsFactory

        @Inject
protected org.gradle.process.internal.JavaForkOptionsFactory getForkOptionsFactory()

      • getModuleRegistry

        @Inject
protected org.gradle.api.internal.classpath.ModuleRegistry getModuleRegistry()

      • getJavaModuleDetector

        @Inject
protected org.gradle.internal.jvm.JavaModuleDetector getJavaModuleDetector()