刀具 - 单位测试

Question

我想开始在测试中使用刀柄。

gradle：

android{
...
defaultConfig{
...
testInstrumentationRunner "com.rachapps.myfitapp.HiltTestRunner"
}
androidTestImplementation 'com.google.dagger:hilt-android-testing:2.28-alpha'
kaptAndroidTest 'com.google.dagger:hilt-android-compiler:2.38.1'

...

class HiltTestRunner : AndroidJUnitRunner() {

    override fun newApplication(
        cl: ClassLoader?,
        className: String?,
        context: Context?
    ): Application {
        return super.newApplication(cl, HiltTestApplication::class.java.name, context)
    }
}

测试课：

@SmallTest
@HiltAndroidTest
class BodyPartDaoTest {

    @get : Rule
    var hiltRule = HiltAndroidRule(this)

    @get : Rule
    var instantTaskExecutorRule = InstantTaskExecutorRule()

    @Inject
    @Named("test_db")
    lateinit var database: MyFitDatabase

    private lateinit var bodyPartDao: BodyPartDao
    private lateinit var exerciseDao: ExerciseDao

    @Before
    fun setup() {
        hiltRule.inject()
        bodyPartDao = database.bodyPartDao()
        exerciseDao = database.exerciseDao()
    }
...
}

模块：

@Module
@InstallIn(SingletonComponent::class)
object TestAppModule {
    @Provides
    @Named("test_db")
    fun provideInMemoryDb(@ApplicationContext context: Context) : MyFitDatabase {
        return Room.inMemoryDatabaseBuilder(context, MyFitDatabase::class.java).allowMainThreadQueries().build()
    }
}

执行测试时，我会收到一个错误：

C:\Radek\Android\MyFitApp\app\build\generated\source\kapt\debugAndroidTest\com\rachapps\myfitapp\data\dao\BodyPartDaoTest_TestComponentDataSupplier.java:14: error: BodyPartDaoTest_TestComponentDataSupplier is not abstract and does not override abstract method get() in TestComponentDataSupplier
public final class BodyPartDaoTest_TestComponentDataSupplier extends TestComponentDataSupplier {
             ^
C:\Radek\Android\MyFitApp\app\build\generated\source\kapt\debugAndroidTest\com\rachapps\myfitapp\data\dao\BodyPartDaoTest_TestComponentDataSupplier.java:15: error: get() in BodyPartDaoTest_TestComponentDataSupplier cannot override get() in TestComponentDataSupplier
  protected TestComponentData get() {
                              ^
  return type TestComponentData is not compatible with Map<Class<?>,TestComponentData>
2 errors

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:compileDebugAndroidTestJavaWithJavac'.

Answer 1

我不确定异常的原因是什么，但是您向测试提供内存数据库的方式并不是文档所说的您应该做的。

尝试替换绑定，看看会发生什么。

Answer 2

尝试保持 Hilt 库版本相同

//Hilt testing
    androidTestImplementation 'com.google.dagger:hilt-android-testing:2.37'
    kaptAndroidTest 'com.google.dagger:hilt-android-compiler:2.37'
//hilt dependency
    kapt "com.google.dagger:hilt-compiler:2.37"
    implementation("com.google.dagger:hilt-android:2.37") 

Answer 3

由于过时的库：com.google.dagger：Hilt-android测试，我遇到了这个问题