1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Environment-find-04.js b/js/src/jit-test/tests/debug/Environment-find-04.js
new file mode 100644
index 0000000000..24a714e252
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Environment-find-04.js
@@ -0,0 +1,21 @@
+// env.find throws a TypeError if the argument is not an identifier.
+
+load(libdir + "asserts.js");
+
+var g = newGlobal({newCompartment: true});
+var dbg = Debugger(g);
+var hits = 0;
+g.h = function () {
+    var env = dbg.getNewestFrame().environment;
+    assertThrowsInstanceOf(function () { env.find(); }, TypeError);
+    assertThrowsInstanceOf(function () { env.find(""); }, TypeError);
+    assertThrowsInstanceOf(function () { env.find(" "); }, TypeError);
+    assertThrowsInstanceOf(function () { env.find(0); }, TypeError);
+    assertThrowsInstanceOf(function () { env.find("0"); }, TypeError);
+    assertThrowsInstanceOf(function () { env.find("0xc"); }, TypeError);
+    assertThrowsInstanceOf(function () { env.find("Anna Karenina"); }, TypeError);
+    hits++;
+};
+g.eval("h();");
+g.eval("with ([1]) h();");
+assertEq(hits, 2);