xref: /aosp_15_r20/external/bazelbuild-kotlin-rules/tests/jvm/java/ijar/SuspendTest.kt (revision 3a22c0a33dd99bcca39a024d43e6fbcc55c2806e)
1 /*
<lambda>null2  * * Copyright 2022 Google LLC. All rights reserved.
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 ijar
18 
19 import com.google.common.truth.Truth.assertThat
20 import kotlin.coroutines.Continuation
21 import kotlin.coroutines.EmptyCoroutineContext
22 import kotlin.coroutines.createCoroutine
23 import kotlin.coroutines.startCoroutine
24 import kotlin.coroutines.resume
25 import org.junit.Test
26 import org.junit.runner.RunWith
27 import org.junit.runners.JUnit4
28 
29 /** Tests exercising suspend functions. */
30 @RunWith(JUnit4::class)
31 class SuspendTest {
32 
33   /** Regression test for b/143465893. */
34   @Test
35   fun testSuspendDoubleInline() {
36     suspend fun doubleInlineExample(): String {
37       return doubleInline("b") { "a" }
38     }
39 
40     // Run doubleInlineExample avoiding dependency on kotlinx.coroutines
41     var result: Result<String>? = null
42     ::doubleInlineExample.startCoroutine(Continuation(EmptyCoroutineContext, { r -> result = r }))
43 
44     assertThat(result!!.getOrThrow()).isEqualTo("ab")
45   }
46 }
47