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      1 /*
      2  * Copyright (C) 2015 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 test.subcomponent.repeat;
     17 
     18 import org.junit.Before;
     19 import org.junit.Test;
     20 import org.junit.runner.RunWith;
     21 import org.junit.runners.JUnit4;
     22 
     23 import static com.google.common.truth.Truth.assertThat;
     24 import static org.junit.Assert.fail;
     25 
     26 @RunWith(JUnit4.class)
     27 public final class RepeatedModuleTest {
     28   private ParentComponent parentComponent;
     29 
     30   @Before
     31   public void initializeParentComponent() {
     32     this.parentComponent = DaggerParentComponent.builder().build();
     33   }
     34 
     35   @Test
     36   public void repeatedModuleHasSameStateInSubcomponent() {
     37     SubcomponentWithRepeatedModule childComponent =
     38         parentComponent.newChildComponentBuilder().build();
     39     assertThat(parentComponent.state()).isSameAs(childComponent.state());
     40   }
     41 
     42   @Test
     43   public void repeatedModuleHasSameStateInGrandchildSubcomponent() {
     44     SubcomponentWithoutRepeatedModule childComponent =
     45         parentComponent.newChildComponentWithoutRepeatedModule();
     46     SubcomponentWithRepeatedModule grandchildComponent =
     47         childComponent.newGrandchildBuilder().build();
     48     assertThat(parentComponent.state()).isSameAs(grandchildComponent.state());
     49   }
     50 
     51   @Test
     52   public void repeatedModuleBuilderThrowsInSubcomponent() {
     53     SubcomponentWithRepeatedModule.Builder childComponentBuilder =
     54         parentComponent.newChildComponentBuilder();
     55     try {
     56       childComponentBuilder.repeatedModule(new RepeatedModule());
     57       fail();
     58     } catch (UnsupportedOperationException expected) {
     59       assertThat(expected)
     60           .hasMessage(
     61               "test.subcomponent.repeat.RepeatedModule cannot be set "
     62                   + "because it is inherited from the enclosing component");
     63     }
     64   }
     65 
     66   @Test
     67   public void repeatedModuleBuilderThrowsInGrandchildSubcomponent() {
     68     SubcomponentWithoutRepeatedModule childComponent =
     69         parentComponent.newChildComponentWithoutRepeatedModule();
     70     SubcomponentWithRepeatedModule.Builder grandchildComponentBuilder =
     71         childComponent.newGrandchildBuilder();
     72     try {
     73       grandchildComponentBuilder.repeatedModule(new RepeatedModule());
     74       fail();
     75     } catch (UnsupportedOperationException expected) {
     76       assertThat(expected)
     77           .hasMessage(
     78               "test.subcomponent.repeat.RepeatedModule cannot be set "
     79                   + "because it is inherited from the enclosing component");
     80     }
     81   }
     82 }
     83