mozilla-central/devtools/client/debugger/test/mochitest/browser_dbg-step-in-uninitialized.js (file symbol)

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Test Info: Warnings

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
// When stepping into a function, 'let' variables should show as uninitialized
// instead of undefined.
"use strict";
add_task(async function test() {
const dbg = await initDebugger("doc-step-in-uninitialized.html");
invokeInTab("main");
await waitForPaused(dbg, "doc-step-in-uninitialized.html");
await stepOver(dbg);
await stepIn(dbg);
await assertPausedAtSourceAndLine(
dbg,
findSource(dbg, "doc-step-in-uninitialized.html").id,
8
);
// We step past the 'let x' at the start of the function because it is not
// a breakpoint position.
Assert.equal(findNodeValue(dbg, "x"), "undefined", "x undefined");
Assert.equal(findNodeValue(dbg, "y"), "(uninitialized)", "y uninitialized");
await stepOver(dbg);
await assertPausedAtSourceAndLine(
dbg,
findSource(dbg, "doc-step-in-uninitialized.html").id,
9
);
Assert.equal(findNodeValue(dbg, "y"), "3", "y initialized");
});
function findNodeValue(dbg, text) {
for (let index = 0; ; index++) {
const elem = findElement(dbg, "scopeNode", index);
if (elem?.innerText == text) {
return getScopeNodeValue(dbg, index);
}
}
}