gecko-dev/dom/ipc/tests/test_bug1086684.js

100 строки
2.5 KiB
JavaScript

"use strict";
/* eslint-env mozilla/frame-script */
const { AddonTestUtils } = ChromeUtils.import(
"resource://testing-common/AddonTestUtils.jsm"
);
const { ExtensionTestUtils } = ChromeUtils.import(
"resource://testing-common/ExtensionXPCShellUtils.jsm"
);
AddonTestUtils.init(this);
ExtensionTestUtils.init(this);
const childFramePath = "/file_bug1086684.html";
const childFrameURL = "http://example.com" + childFramePath;
const childFrameContents = `<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
</head>
<body>
<div id="content">
<input type="file" id="f">
</div>
</body>
</html>`;
const server = AddonTestUtils.createHttpServer({ hosts: ["example.com"] });
server.registerPathHandler(childFramePath, (request, response) => {
response.write(childFrameContents);
});
function childFrameScript() {
"use strict";
let { MockFilePicker } = ChromeUtils.import(
"resource://testing-common/MockFilePicker.jsm"
);
function parentReady(message) {
MockFilePicker.init(content);
MockFilePicker.setFiles([message.data.file]);
MockFilePicker.returnValue = MockFilePicker.returnOK;
let input = content.document.getElementById("f");
input.addEventListener("change", () => {
MockFilePicker.cleanup();
let value = input.value;
message.target.sendAsyncMessage("testBug1086684:childDone", { value });
});
input.focus();
input.click();
}
addMessageListener("testBug1086684:parentReady", function(message) {
parentReady(message);
});
}
add_task(async function() {
let page = await ExtensionTestUtils.loadContentPage(childFrameURL, {
remote: true,
});
page.loadFrameScript(childFrameScript);
await new Promise(resolve => {
let test;
function* testStructure(mm) {
let value;
function testDone(msg) {
test.next(msg.data.value);
}
mm.addMessageListener("testBug1086684:childDone", testDone);
let blob = new Blob([]);
let file = new File([blob], "helloworld.txt", { type: "text/plain" });
mm.sendAsyncMessage("testBug1086684:parentReady", { file });
value = yield;
// Note that the "helloworld.txt" passed in above doesn't affect the
// 'value' getter. Because we're mocking a file using a blob, we ask the
// blob for its path, which is the empty string.
equal(value, "", "got the right answer and didn't crash");
resolve();
}
test = testStructure(page.browser.messageManager);
test.next();
});
await page.close();
});