1 /*
2  * Copyright 2019 The Android Open Source Project
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 androidx.paging
18 
19 import kotlin.test.Test
20 import kotlin.test.assertTrue
21 
22 class WrappedItemKeyedDataSourceTest {
23 
24     @Test
propagatesInvalidationnull25     fun propagatesInvalidation() {
26         val dataSource = WrapperItemKeyedDataSource(TestItemKeyedDataSource(listOf(0))) { it }
27 
28         var kotlinInvalidated = false
29         dataSource.addInvalidatedCallback { kotlinInvalidated = true }
30         var javaInvalidated = false
31         dataSource.addInvalidatedCallback(
32             object : DataSource.InvalidatedCallback {
33                 override fun onInvalidated() {
34                     javaInvalidated = true
35                 }
36             }
37         )
38 
39         dataSource.invalidate()
40         assertTrue { dataSource.isInvalid }
41         assertTrue { kotlinInvalidated }
42         assertTrue { javaInvalidated }
43     }
44 }
45