/*
 * Copyright (C) 2014 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.internal;

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

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

@RunWith(JUnit4.class)
public final class InstanceFactoryTest {
  @Test public void instanceFactory() {
    Object instance = new Object();
    Factory<Object> factory = InstanceFactory.create(instance);
    assertThat(factory.get()).isEqualTo(instance);
    assertThat(factory.get()).isEqualTo(instance);
    assertThat(factory.get()).isEqualTo(instance);
  }

  @Test public void create_throwsNullPointerException() {
    try {
      InstanceFactory.create(null);
      fail();
    } catch (NullPointerException expected) {
    }
  }
}