Introduce constructor-like function for AutoCloseable #KT-66102

libraries/stdlib/test/autoCloseable/AutoCloseableConstructorFunctionTest.kt

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2010-2024 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.
+ */
+
+package test.autoCloseable
+
+import kotlin.test.*
+
+class AutoCloseableConstructorFunctionTest {
+    class ResourceCloseException : Exception()
+
+    @Test
+    fun success() {
+        var isClosed = false
+        val resource = AutoCloseable(closeAction = { isClosed = true })
+        val result = resource.use { "ok" }
+        assertEquals("ok", result)
+        assertTrue(isClosed)
+    }
+
+    @Test
+    fun closeFails() {
+        assertFailsWith<ResourceCloseException> {
+            AutoCloseable { throw ResourceCloseException() }.close()
+        }
+    }
+
+    @Test
+    fun multipleCloseInvocations() {
+        var counter = 0
+        val resource = AutoCloseable { counter++ }
+        resource.use {}
+        assertEquals(1, counter)
+        resource.close()
+        resource.close()
+        assertEquals(3, counter)
+    }
+}