1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-eval-30.js b/js/src/jit-test/tests/debug/Frame-eval-30.js
new file mode 100644
index 0000000000..f99912c452
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Frame-eval-30.js
@@ -0,0 +1,19 @@
+// Test that Debugger.Frame.eval correctly throws on redeclaration.
+
+load(libdir + "evalInFrame.js");
+
+let x;
+
+function f() {
+  evalInFrame(1, "var x;");
+}
+
+var log = "";
+
+try {
+  f();
+} catch (e) {
+  log += "e";
+}
+
+assertEq(log, "e");