javatests/dagger/functional/kotlinsrc/factory/FactoryBindsInstanceTest.kt

/*
 * Copyright (C) 2022 The Dagger Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package dagger.functional.kotlinsrc.factory

import com.google.common.truth.Truth.assertThat
import dagger.BindsInstance
import dagger.Component
import org.junit.Test
import org.junit.runner.RunWith
import org.junit.runners.JUnit4

/** Tests for component factories with [BindsInstance] parameters. */
@RunWith(JUnit4::class)
class FactoryBindsInstanceTest {
  @Component
  internal interface BindsInstanceComponent {
    fun string(): String

    @Component.Factory
    interface Factory {
      fun create(@BindsInstance string: String): BindsInstanceComponent
    }
  }

  @Test
  fun bindsInstance() {
    val component = DaggerFactoryBindsInstanceTest_BindsInstanceComponent.factory().create("baz")
    assertThat(component.string()).isEqualTo("baz")
  }

  @Target(AnnotationTarget.FUNCTION, AnnotationTarget.VALUE_PARAMETER)
  @Retention(AnnotationRetention.BINARY)
  internal annotation class Nullable

  @Component
  internal interface NullableBindsInstanceComponent {
    @Nullable fun string(): String?

    @Component.Factory
    interface Factory {
      fun create(@BindsInstance @Nullable string: String?): NullableBindsInstanceComponent
    }
  }

  @Test
  fun nullableBindsInstance_doesNotFailOnNull() {
    val component =
      DaggerFactoryBindsInstanceTest_NullableBindsInstanceComponent.factory().create(null)
    assertThat(component.string()).isEqualTo(null)
  }

  @Component
  internal interface PrimitiveBindsInstanceComponent {
    val int: Int

    @Component.Factory
    interface Factory {
      fun create(@BindsInstance i: Int): PrimitiveBindsInstanceComponent
    }
  }

  @Test
  fun primitiveBindsInstance() {
    val component =
      DaggerFactoryBindsInstanceTest_PrimitiveBindsInstanceComponent.factory().create(1)
    assertThat(component.int).isEqualTo(1)
  }
}