#25: Add fiber destructor edge case

Author: EdmondDantes

tests/gc/013-gc-fiber-destructors.phpt

@@ -0,0 +1,52 @@
+--TEST--
+Fibers in destructors 006: multiple GC runs
+--FILE--
+<?php
+
+register_shutdown_function(function () {
+    printf("Shutdown\n");
+});
+
+class Cycle {
+    public static $counter = 0;
+    public $self;
+    public function __construct() {
+        $this->self = $this;
+    }
+    public function __destruct() {
+        $id = self::$counter++;
+        printf("%d: Start destruct\n", $id);
+        if ($id === 0) {
+            global $f2;
+            $f2 = Fiber::getCurrent();
+            Fiber::suspend(new stdClass);
+        }
+        printf("%d: End destruct\n", $id);
+    }
+}
+
+$f = new Fiber(function () {
+    new Cycle();
+    new Cycle();
+    gc_collect_cycles();
+});
+
+$f->start();
+
+new Cycle();
+new Cycle();
+gc_collect_cycles();
+
+$f2->resume();
+
+?>
+--EXPECT--
+0: Start destruct
+1: Start destruct
+1: End destruct
+2: Start destruct
+2: End destruct
+3: Start destruct
+3: End destruct
+0: End destruct
+Shutdown