mozilla-central/toolkit/components/extensions/test/xpcshell/test_ext_contentscript_errors.js (file symbol)

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Test Info: Warnings

"use strict";
const server = createHttpServer();
server.registerDirectory("/data/", do_get_file("data"));
const BASE_URL = `http://localhost:${server.identity.primaryPort}/data`;
const TEST_URL_1 = `${BASE_URL}/file_sample.html`;
const TEST_URL_2 = `${BASE_URL}/file_content_script_errors.html`;
// ExtensionContent.jsm needs to know when it's running from xpcshell,
// to use the right timeout for content scripts executed at document_idle.
ExtensionTestUtils.mockAppInfo();
add_task(async function test_cached_contentscript_on_document_start() {
let extension = ExtensionTestUtils.loadExtension({
manifest: {
content_scripts: [
// Use distinct content scripts as some will throw and would prevent executing the next script
{
js: ["script_does_not_exist.js"],
run_at: "document_start",
},
{
js: ["script1.js"],
run_at: "document_start",
},
{
js: ["script2.js"],
run_at: "document_start",
},
{
js: ["script3.js"],
run_at: "document_start",
},
{
js: ["script4.js"],
run_at: "document_start",
},
{
js: ["script5.js"],
run_at: "document_start",
},
{
js: ["script6.js"],
run_at: "document_start",
},
{
js: ["script7.js"],
run_at: "document_start",
},
],
},
files: {
"script1.js": `
throw new Error("Object exception");
`,
"script2.js": `
throw "String exception";
`,
"script3.js": `
undefinedSymbol();
`,
"script4.js": `
)
`,
"script5.js": `
throw null;
`,
"script6.js": `
throw Symbol("MySymbol");
`,
"script7.js": `
Promise.reject("rejected promise");
(async () => {
/* make the async, really async */
await new Promise(r => setTimeout(r, 0));
throw new Error("async function exception");
})();
setTimeout(() => {
asyncUndefinedSymbol();
});
/* Use a delay in order to resume test execution after these async errors */
setTimeout(() => {
browser.test.sendMessage("content-script-loaded");
}, 500);
`,
},
});
await extension.startup();
// Error messages, in roughly the order they appear above.
let expectedMessages = [
`Unable to load script: moz-extension://${extension.uuid}/script_does_not_exist.js`,
"Error: Object exception",
"uncaught exception: String exception",
"ReferenceError: undefinedSymbol is not defined",
"SyntaxError: expected expression, got ')'",
"uncaught exception: null",
"uncaught exception: Symbol(MySymbol)",
"uncaught exception: rejected promise",
"Error: async function exception",
"ReferenceError: asyncUndefinedSymbol is not defined",
];
// Load a first page in order to be able to register a console listener in the content process.
// This has to be done in the same domain of the second page to stay in the same process.
let contentPage = await ExtensionTestUtils.loadContentPage(TEST_URL_1);
// Listen to the errors logged in the content process.
let errorsPromise = ContentTask.spawn(contentPage.browser, {}, async () => {
return new Promise(resolve => {
function listener(error0) {
let error = error0.QueryInterface(Ci.nsIScriptError);
// Ignore errors from ExtensionContent.jsm
if (!error.innerWindowID) {
return;
}
this.collectedErrors.push({
innerWindowID: error.innerWindowID,
message: error.errorMessage,
});
if (this.collectedErrors.length == 10) {
Services.console.unregisterListener(this);
resolve(this.collectedErrors);
}
}
listener.collectedErrors = [];
Services.console.registerListener(listener);
});
});
// Reload the page and check that the cached content script is still able to
// run on document_start.
await contentPage.loadURL(TEST_URL_2);
let errors = await errorsPromise;
await extension.awaitMessage("content-script-loaded");
equal(errors.length, 10);
let messages = [];
for (const { innerWindowID, message } of errors) {
equal(
innerWindowID,
contentPage.browser.innerWindowID,
`Message ${message} has the innerWindowID set`
);
messages.push(message);
}
messages.sort();
expectedMessages.sort();
Assert.deepEqual(messages, expectedMessages, "Got the expected errors");
await extension.unload();
await contentPage.close();
});