The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/jit-test/tests/debug/surfaces-offsets.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,37 @@
     1.4 +// Invalid offsets result in exceptions, not bogus results.
     1.5 +
     1.6 +load(libdir + "asserts.js");
     1.7 +
     1.8 +var g = newGlobal();
     1.9 +var dbg = Debugger(g);
    1.10 +var hits;
    1.11 +dbg.onDebuggerStatement = function (frame) {
    1.12 +    assertEq(frame.script.getOffsetLine(frame.offset), g.line);
    1.13 +    assertThrowsInstanceOf(function () { frame.script.getOffsetLine(String(frame.offset)); }, Error);
    1.14 +    assertThrowsInstanceOf(function () { frame.script.getOffsetLine(Object(frame.offset)); }, Error);
    1.15 +
    1.16 +    assertThrowsInstanceOf(function () { frame.script.getOffsetLine(-1); }, Error);
    1.17 +    assertThrowsInstanceOf(function () { frame.script.getOffsetLine(1000000); }, Error);
    1.18 +    assertThrowsInstanceOf(function () { frame.script.getOffsetLine(0.25); }, Error);
    1.19 +    assertThrowsInstanceOf(function () { frame.script.getOffsetLine(+Infinity); }, Error);
    1.20 +    assertThrowsInstanceOf(function () { frame.script.getOffsetLine(-Infinity); }, Error);
    1.21 +    assertThrowsInstanceOf(function () { frame.script.getOffsetLine(NaN); }, Error);
    1.22 +
    1.23 +    assertThrowsInstanceOf(function () { frame.script.getOffsetLine(false); }, Error);
    1.24 +    assertThrowsInstanceOf(function () { frame.script.getOffsetLine(true); }, Error);
    1.25 +    assertThrowsInstanceOf(function () { frame.script.getOffsetLine(undefined); }, Error);
    1.26 +    assertThrowsInstanceOf(function () { frame.script.getOffsetLine(); }, Error);
    1.27 +
    1.28 +    // We assume that at least one whole number between 0 and frame.offset is invalid.
    1.29 +    assertThrowsInstanceOf(
    1.30 +        function () {
    1.31 +            for (var i = 0; i < frame.offset; i++)
    1.32 +                frame.script.getOffsetLine(i);
    1.33 +        },
    1.34 +        Error);
    1.35 +
    1.36 +    hits++;
    1.37 +};
    1.38 +
    1.39 +hits = 0;
    1.40 +g.eval("var line = new Error().lineNumber; debugger;");