src/third_party/mozjs-45/js/src/jit-test/tests/debug/Script-getChildScripts-02.js

// getChildScripts returns scripts in source order.

var g = newGlobal();
var dbg = new Debugger(g);
var scripts = [];
var cs;
dbg.onDebuggerStatement = function (frame) {
    scripts.push(frame.script);
    if (scripts.length === 1)
        cs = frame.script.getChildScripts();
};

g.eval("function f() { debugger; }\n" +
       "var g = function () { debugger; }\n" +
       "debugger; f(); g();");

assertEq(scripts.length, 3);
assertEq(cs.length, 2);
assertEq(cs[0], scripts[1]);
assertEq(cs[1], scripts[2]);