1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Script-sourceStart-01.js b/js/src/jit-test/tests/debug/Script-sourceStart-01.js
new file mode 100644
index 000000000..dd1cf2374
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Script-sourceStart-01.js
@@ -0,0 +1,22 @@
+/*
+ * Script.prototype.sourceStart and Script.prototype.sourceLength should both be
+ * a number.
+ */
+let g = newGlobal();
+let dbg = new Debugger(g);
+
+var count = 0;
+function test(string, range) {
+    dbg.onNewScript = function (script) {
+        ++count;
+        assertEq(script.sourceStart, range[0]);
+        assertEq(script.sourceLength, range[1]);
+    };
+
+    g.eval(string);
+};
+
+test("", [0, 0]);
+test("2 * 3", [0, 5]);
+test("2\n*\n3", [0, 5]);
+assertEq(count, 3);