1 /*
2  * Copyright (C) 2021 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 com.android.server.pm.test.util
18 
19 import com.google.common.truth.Expect
20 import org.junit.rules.TestRule
21 import org.junit.runner.Description
22 import org.junit.runners.model.Statement
23 
24 /**
25  * Wrapper for [Expect] which supports ignoring any failures. This should be used with caution, but
26  * it allows a base test to be written which doesn't switch success/failure in the test itself,
27  * preventing any logic errors from causing the test to accidentally succeed.
28  */
29 internal class IgnoreableExpect : TestRule {
30 
31     val expect = Expect.create()
32 
33     private var ignore = false
34 
applynull35     override fun apply(base: Statement?, description: Description?): Statement {
36         return object : Statement() {
37             override fun evaluate() {
38                 ignore = false
39                 try {
40                     expect.apply(base, description).evaluate()
41                 } catch (t: Throwable) {
42                     if (!ignore) {
43                         throw t
44                     }
45                 }
46             }
47         }
48     }
49 
ignorenull50     fun ignore() {
51         ignore = true
52     }
53 }
54