1 /* 2 * Copyright (C) 2014 Google, Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package dagger.internal; 17 18 import javax.inject.Provider; 19 import org.junit.Ignore; 20 import org.junit.Test; 21 import org.junit.runner.RunWith; 22 import org.junit.runners.JUnit4; 23 24 import static com.google.common.truth.Truth.assert_; 25 import static org.junit.Assert.fail; 26 27 /** 28 * Tests {@link ScopedProvider}. 29 */ 30 @RunWith(JUnit4.class) 31 public class ScopedProviderTest { 32 @Test public void create_nullPointerException() { 33 try { 34 ScopedProvider.create(null); 35 fail(); 36 } catch (NullPointerException expected) { } 37 } 38 39 // TODO(gak): reenable this test once we can ensure that factories are no longer providing null 40 @Ignore @Test public void get_nullPointerException() { 41 Provider<Object> scopedProvider = ScopedProvider.create(new Factory<Object>() { 42 @Override public Object get() { 43 return null; 44 } 45 }); 46 try { 47 scopedProvider.get(); 48 fail(); 49 } catch (NullPointerException expected) { 50 } 51 } 52 53 @Test public void get() { 54 Provider<Integer> scopedProvider = ScopedProvider.create(new Factory<Integer>() { 55 int i = 0; 56 57 @Override public Integer get() { 58 return i++; 59 } 60 }); 61 assert_().that(scopedProvider.get()).isEqualTo(0); 62 assert_().that(scopedProvider.get()).isEqualTo(0); 63 assert_().that(scopedProvider.get()).isEqualTo(0); 64 } 65 } 66
