multiplatform BroadcastFrameClockTest with sleep

Author: igordmn

compose/runtime/runtime/src/jvmTest/kotlin/androidx/compose/runtime/internal/Sleep.jvm.kt

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2025 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package androidx.compose.runtime.internal
+
+actual fun isSleepAvailable() = true
+
+actual fun sleep(millis: UInt) =
+    Thread.sleep(millis.toLong())

compose/runtime/runtime/src/nativeTest/kotlin/androidx/compose/runtime/internal/Sleep.native.kt

@@ -0,0 +1,23 @@
+/*
+ * Copyright 2025 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package androidx.compose.runtime.internal
+
+actual fun isSleepAvailable() = true
+
+actual fun sleep(millis: UInt) {
+    platform.posix.usleep(millis)
+}

compose/runtime/runtime/src/nonEmulatorCommonTest/kotlin/androidx/compose/runtime/BroadcastFrameClockTest.kt

@@ -17,10 +17,13 @@
 package androidx.compose.runtime
 
 import androidx.compose.runtime.internal.AtomicInt
+import androidx.compose.runtime.internal.isSleepAvailable
+import androidx.compose.runtime.internal.sleep
 import kotlin.test.Test
 import kotlin.test.assertEquals
 import kotlin.test.assertFalse
 import kotlin.test.assertTrue
+import kotlin.time.Duration.Companion.milliseconds
 import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.CoroutineStart.UNDISPATCHED
 import kotlinx.coroutines.Deferred
@@ -84,16 +87,18 @@ class BroadcastFrameClockTest {
         }
 
     @OptIn(InternalCoroutinesApi::class)
-    @Test(timeout = 5_000)
-    fun locklessCancellation() = runTest {
+    @Test
+    fun locklessCancellation() = runTest(timeout = 5_000.milliseconds) {
+        if (!isSleepAvailable()) return@runTest
+
         val clock = BroadcastFrameClock()
         val cancellationGate = AtomicInt(1)
 
         var spin = true
         async(start = UNDISPATCHED) {
             clock.withFrameNanos {
                 cancellationGate.add(-1)
-                @Suppress("BanThreadSleep") while (spin) Thread.sleep(100)
+                while (spin) sleep(100u)
             }
         }
 

compose/runtime/runtime/src/nonEmulatorCommonTest/kotlin/androidx/compose/runtime/internal/Sleep.kt

@@ -0,0 +1,21 @@
+/*
+ * Copyright 2025 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package androidx.compose.runtime.internal
+
+internal expect fun isSleepAvailable(): Boolean
+
+internal expect fun sleep(millis: UInt)

compose/runtime/runtime/src/webTest/kotlin/androidx/compose/runtime/internal/Sleep.web.kt

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2025 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package androidx.compose.runtime.internal
+
+actual fun isSleepAvailable() = false
+
+actual fun sleep(millis: UInt): Unit =
+    throw UnsupportedOperationException("Sleep is not supported")