michael@0: // env.find throws a TypeError if the argument is not an identifier.
michael@0: 
michael@0: load(libdir + "asserts.js");
michael@0: 
michael@0: var g = newGlobal();
michael@0: var dbg = Debugger(g);
michael@0: var hits = 0;
michael@0: g.h = function () {
michael@0:     var env = dbg.getNewestFrame().environment;
michael@0:     assertThrowsInstanceOf(function () { env.find(); }, TypeError);
michael@0:     assertThrowsInstanceOf(function () { env.find(""); }, TypeError);
michael@0:     assertThrowsInstanceOf(function () { env.find(" "); }, TypeError);
michael@0:     assertThrowsInstanceOf(function () { env.find(0); }, TypeError);
michael@0:     assertThrowsInstanceOf(function () { env.find("0"); }, TypeError);
michael@0:     assertThrowsInstanceOf(function () { env.find("0xc"); }, TypeError);
michael@0:     assertThrowsInstanceOf(function () { env.find("Anna Karenina"); }, TypeError);
michael@0:     hits++;
michael@0: };
michael@0: g.eval("h();");
michael@0: g.eval("with ([1]) h();");
michael@0: assertEq(hits, 2);