javatests/artifacts/hilt-android/simpleKotlin/app/src/test/java/dagger/hilt/android/simpleKotlin/SimpleTest.kt

/*
 * Copyright (C) 2020 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.hilt.android.simpleKotlin

import android.os.Build
import androidx.appcompat.app.AppCompatActivity
import androidx.test.core.app.ActivityScenario
import com.google.common.truth.Truth.assertThat
import dagger.hilt.android.AndroidEntryPoint
import dagger.hilt.android.testing.BindValue
import dagger.hilt.android.testing.HiltAndroidRule
import dagger.hilt.android.testing.HiltAndroidTest
import dagger.hilt.android.testing.HiltTestApplication
import javax.inject.Inject
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith
import org.robolectric.RobolectricTestRunner
import org.robolectric.annotation.Config

/**
 * Example local unit test, which will execute on the development machine (host).
 *
 * See [testing documentation](http://d.android.com/tools/testing).
 */
@HiltAndroidTest
@RunWith(RobolectricTestRunner::class)
// Robolectric requires Java9 to run API 29 and above, so use API 28 instead
@Config(sdk = [Build.VERSION_CODES.P], application = HiltTestApplication::class)
class SimpleTest {
  @get:Rule val rule = HiltAndroidRule(this)

  @BindValue val bindStr = "STRING_BINDING"

  @Inject @JvmField
  var str: String? = null

  @AndroidEntryPoint
  class TestActivity : AppCompatActivity()

  @Test
  fun testBindValue() {
    assertThat(str).isNull()
    rule.inject()
    assertThat(str).isEqualTo(bindStr)
  }

  @Test
  fun verifyMainActivity() {
    ActivityScenario.launch(MainActivity::class.java).use { scenario ->
      scenario.onActivity { activity ->
        assertThat(activity::class.java.getSuperclass()?.getSimpleName())
          .isEqualTo("Hilt_MainActivity")
        assertThat(activity.viewModel.model).isNotNull()
        assertThat(activity.viewModel.name).isNotNull()
      }
    }
  }

  @Test
  fun verifyTestActivity() {
    ActivityScenario.launch(TestActivity::class.java).use { scenario ->
      scenario.onActivity { activity ->
        assertThat(activity::class.java.getSuperclass()?.getSimpleName())
          .isEqualTo("Hilt_SimpleTest_TestActivity")
      }
    }
  }
}