1 /*
2  * Copyright 2020 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.compose.ui.platform
18 
19 import androidx.compose.ui.node.Owner
20 import org.junit.rules.TestRule
21 import org.junit.runner.Description
22 import org.junit.runners.model.Statement
23 
24 /** Enables extra assertions inside [Owner]. */
25 class AndroidOwnerExtraAssertionsRule : TestRule {
26 
applynull27     override fun apply(base: Statement, description: Description?): Statement {
28         return ExtraValidationsStatement(base)
29     }
30 
31     inner class ExtraValidationsStatement(private val base: Statement) : Statement() {
evaluatenull32         override fun evaluate() {
33             Owner.enableExtraAssertions = true
34             try {
35                 base.evaluate()
36             } finally {
37                 Owner.enableExtraAssertions = false
38             }
39         }
40     }
41 }
42