mozilla-central/devtools/client/debugger/test/mochitest/browser_dbg-scopes-duplicated.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/>. */
// Test that properties with the same value objec be expanded. See Bug 1617210.
"use strict";
const httpServer = createTestHTTPServer();
httpServer.registerContentType("html", "text/html");
httpServer.registerContentType("js", "application/javascript");
httpServer.registerPathHandler(`/`, function (request, response) {
response.setStatusLine(request.httpVersion, 200, "OK");
response.write(`
<html>
<button class="pause">Click me</button>
<script type="text/javascript" src="test.js"></script>
</html>`);
});
httpServer.registerPathHandler("/test.js", function (request, response) {
response.setHeader("Content-Type", "application/javascript");
response.write(`
document.addEventListener("click", function onClick(e) {
var sharedValue = {hello: "world"};
var x = {
a: sharedValue,
b: sharedValue,
c: sharedValue,
d: {
e: {
g: sharedValue
},
f: {
h: sharedValue
}
}
};
debugger;
});
`);
});
const port = httpServer.identity.primaryPort;
const TEST_URL = `http://localhost:${port}/`;
add_task(async function () {
const dbg = await initDebuggerWithAbsoluteURL(TEST_URL);
const ready = Promise.all([
waitForPaused(dbg),
waitForLoadedSource(dbg, "test.js"),
]);
SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {
content.document.querySelector("button.pause").click();
});
await ready;
checkScopesLabels(
dbg,
`
| e
| sharedValue
| x
`,
{ startIndex: 3 }
);
info("Expand `x` node");
await toggleScopeNode(dbg, 6);
checkScopesLabels(
dbg,
`
| x
| | a
| | b
| | c
| | d
`,
{ startIndex: 5 }
);
info("Expand node `d`");
await toggleScopeNode(dbg, 10);
checkScopesLabels(
dbg,
`
| | d
| | | e
| | | f
`,
{ startIndex: 9 }
);
info("Expand `f` and `e` nodes");
await toggleScopeNode(dbg, 12);
await toggleScopeNode(dbg, 11);
checkScopesLabels(
dbg,
`
| | d
| | | e
| | | | g
| | | | <prototype>
| | | f
| | | | h
| | | | <prototype>
`,
{ startIndex: 9 }
);
info("Expand `h`, `g`, `e`, `c`, `b` and `a` nodes");
await toggleScopeNode(dbg, 15);
await toggleScopeNode(dbg, 12);
await toggleScopeNode(dbg, 9);
await toggleScopeNode(dbg, 8);
await toggleScopeNode(dbg, 7);
checkScopesLabels(
dbg,
`
| x
| | a
| | | hello
| | | <prototype>
| | b
| | | hello
| | | <prototype>
| | c
| | | hello
| | | <prototype>
| | d
| | | e
| | | | g
| | | | | hello
| | | | | <prototype>
| | | | <prototype>
| | | f
| | | | h
| | | | | hello
| | | | | <prototype>
| | | | <prototype>
`,
{ startIndex: 5 }
);
info("Expand `e`");
await toggleScopeNode(dbg, 4);
info("Expand the `target` node");
let nodes = getAllLabels(dbg);
const originalNodesCount = nodes.length;
const targetNodeIndex = nodes.indexOf("target");
Assert.greater(targetNodeIndex, -1, "Found the target node");
// toggleScopeNode looks for the target with `querySelector` with `:nth-child`
// selector. Therefore, the index starts from 1, not 0. So, we need to
// increment the index.
await toggleScopeNode(dbg, targetNodeIndex + 1);
nodes = getAllLabels(dbg);
Assert.greater(
nodes.length,
originalNodesCount,
"the target node was expanded"
);
ok(nodes.includes("classList"), "classList is displayed");
await resume(dbg);
});
function getAllLabels(dbg, withIndent = false) {
return Array.from(findAllElements(dbg, "scopeNodes")).map(el => {
let text = el.innerText;
if (withIndent) {
const node = el.closest(".tree-node");
const level = Number(node.getAttribute("aria-level"));
if (!Number.isNaN(level)) {
text = `${"| ".repeat(level - 1)}${text}`.trim();
}
}
return text;
});
}
function checkScopesLabels(dbg, expected, { startIndex = 0 } = {}) {
const lines = expected
.trim()
.split("\n")
.map(line => line.trim());
const labels = getAllLabels(dbg, true).slice(
startIndex,
startIndex + lines.length
);
const format = arr => `\n${arr.join("\n")}\n`;
is(format(labels), format(lines), "got expected scope labels");
}