/*
 * Copyright (C) 2019 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.factory;

import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.fail;

import dagger.Component;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/**
 * Tests for factories for components that have a module that must have an instance provided by the
 * user.
 */
@RunWith(JUnit4.class)
public final class FactoryRequiredModulesTest {

  @Component(modules = UninstantiableConcreteModule.class)
  interface UninstantiableConcreteModuleComponent {
    long getLong();

    @Component.Factory
    interface Factory {
      UninstantiableConcreteModuleComponent create(UninstantiableConcreteModule module);
    }
  }

  @Test
  public void uninstantiableConcreteModule() {
    UninstantiableConcreteModuleComponent component =
        DaggerFactoryRequiredModulesTest_UninstantiableConcreteModuleComponent.factory()
            .create(new UninstantiableConcreteModule(42L));
    assertThat(component.getLong()).isEqualTo(42L);
  }

  @Test
  public void uninstantiableConcreteModule_failsOnNull() {
    try {
      DaggerFactoryRequiredModulesTest_UninstantiableConcreteModuleComponent.factory().create(null);
      fail();
    } catch (NullPointerException expected) {
    }
  }
}