[K/N][Tests] Migrate objcSmoke & objcTests tests

^KT-61259
2024-01-24 18:04:17 +01:00
parent 58f7dd1c83
commit 524f0d335e
98 changed files with 227 additions and 8 deletions
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+@file:OptIn(kotlin.experimental.ExperimentalNativeApi::class, kotlin.native.runtime.NativeRuntimeApi::class)
+
+import kotlin.test.*
+import kotlin.native.ref.WeakReference
+import kotlinx.cinterop.*
+import kotlinx.cinterop.internal.detachObjCObject
+import objcTests.*
+
+class detachObjCObjectTests {
+    @AfterTest
+    private fun gc() {
+        // An attempt to make sure the GC is fine after detachObjCObject.
+        kotlin.native.runtime.GC.collect()
+        kotlin.native.runtime.GC.collect()
+    }
+
+    private fun checkThroughWeakRef(checkWeakRefBeforeReset: Boolean) {
+        val obj = NSObject()
+        val ref = WeakReference(obj)
+
+        if (checkWeakRefBeforeReset) {
+            repeat(2) {
+                val refValue = ref.value
+                assertNotNull(refValue)
+                // refValue is actually a new wrapper, so we need to reset it as well:
+                detachObjCObject(refValue)
+                // The next iteration will check that the object is not yet removed.
+            }
+        }
+
+        detachObjCObject(obj)
+        val refValue = ref.value
+        assertNull(refValue)
+    }
+
+    @Test
+    fun checkThroughWeakRef() {
+        checkThroughWeakRef(checkWeakRefBeforeReset = false)
+    }
+
+    @Test
+    fun checkThroughWeakRefWithMultipleWrappers() {
+        checkThroughWeakRef(checkWeakRefBeforeReset = true)
+    }
+
+    @Test
+    fun checkThroughDeallocFlag() {
+        val obj = ObjectWithDeallocFlag()
+        val deallocFlagHolder = obj.deallocFlagHolder
+
+        assertFalse(deallocFlagHolder.deallocated)
+        detachObjCObject(obj)
+        assertTrue(deallocFlagHolder.deallocated)
+    }
+
+    @Test
+    fun checkThroughDeallocFlagWithMultipleWrappers() {
+        val obj = ObjectWithDeallocFlag()
+        val deallocFlagHolder = obj.deallocFlagHolder
+
+        assertFalse(deallocFlagHolder.deallocated)
+
+        val sameObj = obj.sameObject() // Same object, different wrapper
+
+        detachObjCObject(obj)
+        assertFalse(deallocFlagHolder.deallocated)
+
+        detachObjCObject(obj)
+        assertFalse(deallocFlagHolder.deallocated)
+
+        detachObjCObject(sameObj)
+        assertTrue(deallocFlagHolder.deallocated)
+    }
+}