Improve memory limit test

Author: JoshuaBehrens

tests/set_memory_limit_001.phpt

@@ -13,20 +13,21 @@ if (getenv("SKIP_SLOW_TESTS")) {
 
 $JS = <<< EOT
 var jsfunc = function() {
-    var text = "abcdefghijklmnopqrstuvwyxz0123456789";
+    var text = "abcdefghijklmnopqrstuvwyxz0123456789"; // 36 bytes fits 277777 times in 10 MB
     var memory = "";
-    for (var i = 0; i < 100; ++i) {
-	for (var j = 0; j < 10000; ++j) {
+
+    // this should exceed the memory limit as it tries to generate 300_000 * 36 bytes = 10.8 MB
+    for (var i = 0; i < 30; ++i) {
+        for (var j = 0; j < 10_000; ++j) {
             memory += text;
-	}
-	sleep(0);
+        }
     }
 };
 jsfunc;
 EOT;
 
 $v8 = new V8Js();
-$v8->setMemoryLimit(10000000);
+$v8->setMemoryLimit(10_000_000);
 
 $func = $v8->executeString($JS);
 var_dump($func);