1 files changed, 38 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/valuetosource.js b/js/src/jit-test/tests/basic/valuetosource.js
new file mode 100644
index 0000000000..739b385056
--- /dev/null
+++ b/js/src/jit-test/tests/basic/valuetosource.js
@@ -0,0 +1,38 @@
+// |jit-test| --disable-tosource
+
+const TEST_CASES = [
+    [`undefined`, "(void 0)"],
+    [`null`, "null"],
+    [`true`, "true"],
+    [`Symbol("abc")`, `Symbol("abc")`],
+    [`15`, "15"],
+    [`-0`, "-0"],
+    [`"abc"`, `"abc"`],
+    [`(function a() { return 1; })`, `(function a() { return 1; })`],
+    [`[1, 2, 3]`, `[1, 2, 3]`],
+    [`[1, {a: 0, b: 0}, 2]`, `[1, {a:0, b:0}, 2]`],
+    [`({a: [1, 2, 3]})`, `({a:[1, 2, 3]})`],
+    [`new Error("msg", "file", 1)`, `(new Error("msg", "file", 1))`],
+    [`new TypeError("msg", "file", 1)`, `(new TypeError("msg", "file", 1))`],
+    [`new class X extends Error {
+        constructor() {
+            super("msg", "file", 1);
+            this.name = "X";
+        }
+    }`, `(new X("msg", "file", 1))`],
+    [`/a(b)c/`, `/a(b)c/`],
+    [`/abc/gi`, `/abc/gi`],
+    [`new Boolean(false)`, `new Boolean(false)`],
+    [`Object(false)`, `new Boolean(false)`],
+    [`new String("abc")`, `new String("abc")`],
+    [`Object("abc")`, `new String("abc")`],
+    [`new Number(42)`, `new Number(42)`],
+    [`Object(42)`, `new Number(42)`],
+    [`new Date(1579447335)`, `new Date(1579447335)`],
+]
+
+let g = newGlobal({newCompartment: true});
+for (let [actual, expected] of TEST_CASES) {
+    assertEq(valueToSource(eval(actual)), expected);
+    assertEq(valueToSource(g.eval(actual)), expected);
+}