Regression test of Number.isFinite/is(Safe)Integer(long).

Author: iamstolis

graal-js/src/com.oracle.truffle.js.test/js/GR-49957.js

@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2023, 2023, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Licensed under the Universal Permissive License v 1.0 as shown at http://oss.oracle.com/licenses/upl.
+ */
+
+load("assert.js");
+
+var minValue = java.lang.Long.MIN_VALUE;
+var maxValue = java.lang.Long.MAX_VALUE;
+var someValue = java.lang.Long.parseLong("12345678901");
+
+assertTrue(Number.isFinite(minValue));
+assertTrue(Number.isFinite(maxValue));
+assertTrue(Number.isFinite(someValue));
+
+assertTrue(Number.isInteger(minValue));
+assertTrue(Number.isInteger(maxValue));
+assertTrue(Number.isInteger(someValue));
+
+assertFalse(Number.isSafeInteger(minValue));
+assertFalse(Number.isSafeInteger(maxValue));
+assertTrue(Number.isSafeInteger(someValue));