Frame-onPop-17.js - mozsearch

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// onPop surfaces.

load(libdir + "asserts.js");

var g = newGlobal({newCompartment: true});

var dbg = new Debugger(g);

// Assigning a bogus value to Debugger.Frame.prototype.onPop raises a TypeError.

function test(badValue) {

    print("store " + JSON.stringify(badValue) + " in Debugger.Frame.prototype.onPop");

    var log;

    dbg.onDebuggerStatement = function handleDebugger(frame) {

        log += "d";

        assertThrowsInstanceOf(function () { frame.onPop = badValue; }, TypeError);

};

    log = "";

    g.eval("debugger");

    assertEq(log, "d");

test(null);

test(false);

test(1);

test("stringy");

test(Symbol("symbolic"));

test({});

test([]);

// Getting and setting the prototype's onPop is an error.

assertThrowsInstanceOf(function () { Debugger.Frame.prototype.onPop; }, TypeError);

assertThrowsInstanceOf(

    function () { Debugger.Frame.prototype.onPop = function () {}; },

    TypeError);

// The getters and setters correctly check the type of their 'this' argument.

var descriptor = Object.getOwnPropertyDescriptor(Debugger.Frame.prototype, 'onPop');

assertEq(descriptor.configurable, true);

assertEq(descriptor.enumerable, false);

assertThrowsInstanceOf(function () { descriptor.get.call({}); }, TypeError);

assertThrowsInstanceOf(function () { descriptor.set.call({}, function() {}); }, TypeError);