The Tor Browser / file revision

 // Basic Script.prototype.getBreakpoints tests.

 var g = newGlobal();

 g.eval("var line0 = Error().lineNumber;\n" +

        "function f(x) {\n" +        // line0 + 1

        "    if (x < 0)\n" +         // line0 + 2

        "        return -x;\n" +     // line0 + 3

        "    return x;\n" +

        "}");

 var s;

 var offsets = [];

 var handlers = [];

 var dbg = Debugger(g);

 dbg.onDebuggerStatement = function (frame) {

     s = frame.eval("f").return.script;

     var off;

     for (var i = 0; i < 3; i++) {

         var off = s.getLineOffsets(g.line0 + 2 + i)[0];

         assertEq(typeof off, 'number');

         handlers[i] = {};

         s.setBreakpoint(off, handlers[i]);

         offsets[i] = off;

     }

 };

 g.eval("debugger;");

 // getBreakpoints without an offset gets all breakpoints in the script.

 var bps = s.getBreakpoints();

 assertEq(bps.length, handlers.length);

 for (var i = 0; i < bps.length; i++)

     assertEq(bps.indexOf(handlers[i]) !== -1, true);

 // getBreakpoints with an offset finds only breakpoints at that offset.

 for (var i = 0; i < offsets.length; i++) {

     var bps = s.getBreakpoints(offsets[i]);

     assertEq(bps.length, 1);

     assertEq(bps[0], handlers[i]);

 }