# TestComponent # TestComponent [View Source](https://cs.android.com/search?q=file:com/android/build/api/variant/TestComponent.kt+class:com.android.build.api.variant.TestComponent) Added in 7.0.0
``` interface TestComponent : Component ```
Known direct subclasses [DeviceTest](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/DeviceTest),[HostTest](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/HostTest),[UnitTest](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/UnitTest) |---------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------| | [DeviceTest](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/DeviceTest) | Model for Device Test components that contains build-time properties | | [HostTest](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/HostTest) | Model for Host Test components that contains build-time properties. | | [UnitTest](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/UnitTest) | [Component](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component)for unit tests | Known indirect subclasses [AndroidTest](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/AndroidTest),[UnitTest](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/component/UnitTest) |-----------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------| | [AndroidTest](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/AndroidTest) | Model for Android Test components that contains build-time properties | | [UnitTest](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/component/UnitTest) | **This interface is deprecated.**Use the com.android.build.api.variant package | *** ** * ** *** Model for test components that contains build-time properties. These components are attached to a main component ([Variant](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Variant)), and accessed via them. ```gdscript androidComponents { onVariants(selector().all()) { variant: ApplicationVariant -> variant.androidTest?.apply { .... } variant.unitTest?.apply { .... } } } ``` Not all subtype of[Variant](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Variant)will have access to all sub-types of[TestComponent](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/TestComponent), this is handled via[HasUnitTest](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/HasUnitTest), and[HasDeviceTests](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/HasDeviceTests). The test components are also part of[Variant.nestedComponents](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Variant#nestedComponents()) ## Summary | ### Public properties | |---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [MapProperty](https://docs.gradle.org/current/javadoc/org/gradle/api/provider/MapProperty.html)`<`[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)`, `[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)`>` | [manifestPlaceholders](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/TestComponent#manifestPlaceholders()) [MapProperty](https://docs.gradle.org/current/javadoc/org/gradle/api/provider/MapProperty.html)of the test component's manifest placeholders. | | ### Inherited functions | |-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | From[com.android.build.api.variant.Component](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component) |----------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) | `@`[Incubating](https://docs.gradle.org/current/javadoc/org/gradle/api/Incubating.html) [computeTaskName](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component#computeTaskName(kotlin.String,kotlin.String))`(action: `[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)`, subject: `[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)`)` Utility method to create unique task name for component. | | [Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | ~~[setAsmFramesComputationMode](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component#setAsmFramesComputationMode(com.android.build.api.instrumentation.FramesComputationMode))~~`(mode: `[FramesComputationMode](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/instrumentation/FramesComputationMode)`)` **This function is deprecated.**Will be removed in v9.0, use the instrumentation block. | | [Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | ` `~~[transformClassesWith](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component#transformClassesWith(java.lang.Class,com.android.build.api.instrumentation.InstrumentationScope,kotlin.Function1))~~`(` ` classVisitorFactoryImplClass: `[Class](https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Class.html)`<`[AsmClassVisitorFactory](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/instrumentation/AsmClassVisitorFactory)`>,` ` scope: `[InstrumentationScope](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/instrumentation/InstrumentationScope)`,` ` instrumentationParamsConfig: (ParamT) `->` `[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) `)` **This function is deprecated.**Will be removed in v9.0, use the instrumentation block. | | | ### Inherited properties | |-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | From[com.android.build.api.variant.Component](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component) |---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [Configuration](https://docs.gradle.org/current/javadoc/org/gradle/api/artifacts/Configuration.html) | [annotationProcessorConfiguration](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component#annotationProcessorConfiguration()) Access to the variant's annotation processor[Configuration](https://docs.gradle.org/current/javadoc/org/gradle/api/artifacts/Configuration.html); for example, the debugAnnotationProcessor[Configuration](https://docs.gradle.org/current/javadoc/org/gradle/api/artifacts/Configuration.html)for the debug variant. | | [Artifacts](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/artifact/Artifacts) | [artifacts](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component#artifacts()) Access to the variant's buildable artifacts for build customization. | | [FileCollection](https://docs.gradle.org/current/javadoc/org/gradle/api/file/FileCollection.html) | [compileClasspath](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component#compileClasspath()) Access to the variant's compile classpath. | | [Configuration](https://docs.gradle.org/current/javadoc/org/gradle/api/artifacts/Configuration.html) | [compileConfiguration](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component#compileConfiguration()) Access to the variant's compile[Configuration](https://docs.gradle.org/current/javadoc/org/gradle/api/artifacts/Configuration.html); for example, the debugCompileClasspath[Configuration](https://docs.gradle.org/current/javadoc/org/gradle/api/artifacts/Configuration.html)for the debug variant. | | [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | [debuggable](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component#debuggable()) Whether the produced artifacts will be debuggable | | [Instrumentation](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Instrumentation) | [instrumentation](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component#instrumentation()) Access to the variant's instrumentation options. | | [JavaCompilation](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/JavaCompilation) | [javaCompilation](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component#javaCompilation()) Access to the variant's java compilation options. | | [LifecycleTasks](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/LifecycleTasks) | [lifecycleTasks](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component#lifecycleTasks()) Provides access to the[LifecycleTasks](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/LifecycleTasks)created for this component. | | [Provider](https://docs.gradle.org/current/javadoc/org/gradle/api/provider/Provider.html)`<`[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)`>` | [namespace](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component#namespace()) The namespace of the generated R and BuildConfig classes. | | [Configuration](https://docs.gradle.org/current/javadoc/org/gradle/api/artifacts/Configuration.html) | [runtimeConfiguration](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component#runtimeConfiguration()) Access to the variant's runtime[Configuration](https://docs.gradle.org/current/javadoc/org/gradle/api/artifacts/Configuration.html); for example, the debugRuntimeClasspath[Configuration](https://docs.gradle.org/current/javadoc/org/gradle/api/artifacts/Configuration.html)for the debug variant. | | [Sources](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Sources) | [sources](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/Component#sources()) Access to variant's source files. | | | From[com.android.build.api.variant.ComponentIdentity](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/ComponentIdentity) |----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)`?` | [buildType](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/ComponentIdentity#buildType()) Build type name. | | [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)`?` | [flavorName](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/ComponentIdentity#flavorName()) The multi-flavor name of the variant. | | [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) | [name](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/ComponentIdentity#name()) Component's name. | | [List](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-list/index.html)`<`[Pair](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-pair/index.html)`<`[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)`, `[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)`>>` | [productFlavors](https://developer.android.com/reference/tools/gradle-api/8.8/com/android/build/api/variant/ComponentIdentity#productFlavors()) List of flavor names. | | ## Public properties ### manifestPlaceholders Added in 7.4.1 ``` val manifestPlaceholders: MapProperty ``` [MapProperty](https://docs.gradle.org/current/javadoc/org/gradle/api/provider/MapProperty.html)of the test component's manifest placeholders. Placeholders are organized with a key and a value. The value is a[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)that will be used as is in the merged manifest. | Returns | |---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [MapProperty](https://docs.gradle.org/current/javadoc/org/gradle/api/provider/MapProperty.html)`<`[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)`, `[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)`>` | the[MapProperty](https://docs.gradle.org/current/javadoc/org/gradle/api/provider/MapProperty.html)with keys as[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) |