xref: /aosp_15_r20/external/dagger2/javatests/dagger/functional/kotlinsrc/basic/ComponentMethodTest.kt (revision f585d8a307d0621d6060bd7e80091fdcbf94fe27)
1 /*
2  * Copyright (C) 2018 The Dagger Authors.
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 
17 package dagger.functional.kotlinsrc.basic
18 
19 import dagger.Component
20 import javax.inject.Inject
21 import javax.inject.Provider
22 import org.junit.Test
23 import org.junit.runner.RunWith
24 import org.junit.runners.JUnit4
25 
26 /**
27  * This is a regression test that makes sure component method order does not affect initialization
28  * order.
29  */
30 @RunWith(JUnit4::class)
31 class ComponentMethodTest {
32   internal class Dep1 @Inject constructor(@Suppress("UNUSED_PARAMETER") dep2: Dep2)
33   internal class Dep2 @Inject constructor(@Suppress("UNUSED_PARAMETER") dep3: Dep3)
34   internal class Dep3 @Inject constructor()
35 
36   @Component
37   internal interface NonTopologicalOrderComponent {
dep1Providernull38     fun dep1Provider(): Provider<Dep1>
39     fun dep2Provider(): Provider<Dep2>
40   }
41 
42   @Component
43   internal interface TopologicalOrderComponent {
44     fun dep2Provider(): Provider<Dep2>
45     fun dep1Provider(): Provider<Dep1>
46   }
47 
48   @Test
testNonTopologicalOrderComponentnull49   fun testNonTopologicalOrderComponent() {
50     val component = DaggerComponentMethodTest_NonTopologicalOrderComponent.create()
51     component.dep1Provider().get()
52     component.dep2Provider().get()
53   }
54 
55   @Test
testTopologicalOrderComponentnull56   fun testTopologicalOrderComponent() {
57     val component = DaggerComponentMethodTest_TopologicalOrderComponent.create()
58     component.dep1Provider().get()
59     component.dep2Provider().get()
60   }
61 }
62