michael@0: // If the offset parameter to setBreakpoint is invalid, throw an error.
michael@0: 
michael@0: load(libdir + "asserts.js");
michael@0: 
michael@0: var g = newGlobal();
michael@0: var dbg = new Debugger(g);
michael@0: var hits = 0;
michael@0: dbg.onDebuggerStatement = function (frame) {
michael@0:     // We assume at least one offset between 0 and frame.offset is invalid.
michael@0:     assertThrowsInstanceOf(
michael@0:         function () {
michael@0:             for (var i = 0; i < frame.offset; i++)
michael@0:                 frame.script.setBreakpoint(i, {});
michael@0:         },
michael@0:         Error);
michael@0:     hits++;
michael@0: };
michael@0: g.eval("x = 256; debugger;");
michael@0: assertEq(hits, 1);