1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Environment-setVariable-08.js b/js/src/jit-test/tests/debug/Environment-setVariable-08.js
new file mode 100644
index 0000000000..35de70975b
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Environment-setVariable-08.js
@@ -0,0 +1,29 @@
+// setVariable throws if no binding exists.
+
+load(libdir + "asserts.js");
+
+function test(code) {
+    var g = newGlobal({newCompartment: true});
+    var dbg = new Debugger(g);
+    var hits = 0;
+    dbg.onDebuggerStatement = function (frame) {
+        var env = frame.older.environment;
+        assertThrowsInstanceOf(function () { env.setVariable("y", 2); }, Error);
+        hits++;
+    };
+    g.eval("var y = 0; function d() { debugger; }");
+
+    assertEq(g.eval(code), 0);
+
+    assertEq(g.y, 0);
+    assertEq(hits, 1);
+}
+
+// local scope of non-heavyweight function
+test("function f() { var x = 1; d(); return y; }  f();");
+
+// block scope
+test("function h(x) { if (x) { let x = 1; d(); return y; } }  h(3);");
+
+// strict eval scope
+test("'use strict'; eval('d(); y;');");