Frame-olderSavedFrame-02.js

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// An explicit async stack should be available via olderSavedFrame.

// This test makes sure that "main" shows up as an async saved frame properly

// when the promise is resumed normally outside "main()".

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

var dbg = new Debugger(g);

let done = false;

dbg.onDebuggerStatement = function (frame) {

  // This frame has an "olderSavedFrame" because "run()" is an async function

  // and those have explicit async stacks attached to them.

  const parent = frame.olderSavedFrame;

  assertEq(typeof parent.source, "string");

  assertEq(parent.line, 9);

  assertEq(parent.column, 3);

  assertEq(parent.asyncCause, "async");

  assertEq(parent.functionDisplayName, "main");

  done = true;

};

g.eval(`

let draining = false;

async function run() {

  await Promise.resolve();

  debugger;

(function main() {

  run();

})();

drainJobQueue();

`);

assertEq(done, true);