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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
const mimeSvc = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService);
const handlerSvc = Cc["@mozilla.org/uriloader/handler-service;1"].getService(
Ci.nsIHandlerService
);
const contentTypes = {
valid: [
"application/json",
"application/manifest+json",
"application/vnd.api+json",
"application/hal+json",
"application/json+json",
"application/whatever+json",
],
invalid: [
"text/json",
"text/hal+json",
"application/jsona",
"application/whatever+jsona",
],
};
add_task(async function () {
info("Test JSON content types started");
// Prevent saving files to disk.
const useDownloadDir = SpecialPowers.getBoolPref(
"browser.download.useDownloadDir"
);
SpecialPowers.setBoolPref("browser.download.useDownloadDir", false);
const { MockFilePicker } = SpecialPowers;
MockFilePicker.init(window.browsingContext);
MockFilePicker.returnValue = MockFilePicker.returnCancel;
for (const kind of Object.keys(contentTypes)) {
const isValid = kind === "valid";
for (const type of contentTypes[kind]) {
// Prevent "Open or Save" dialogs, which would make the test fail.
const mimeInfo = mimeSvc.getFromTypeAndExtension(type, null);
const exists = handlerSvc.exists(mimeInfo);
const { alwaysAskBeforeHandling } = mimeInfo;
mimeInfo.alwaysAskBeforeHandling = false;
handlerSvc.store(mimeInfo);
await testType(isValid, type);
await testType(isValid, type, ";foo=bar+json");
// Restore old nsIMIMEInfo
if (exists) {
Object.assign(mimeInfo, { alwaysAskBeforeHandling });
handlerSvc.store(mimeInfo);
} else {
handlerSvc.remove(mimeInfo);
}
}
}
// Restore old pref
registerCleanupFunction(function () {
MockFilePicker.cleanup();
SpecialPowers.setBoolPref(
"browser.download.useDownloadDir",
useDownloadDir
);
});
});
function testType(isValid, type, params = "") {
const TEST_JSON_URL = "data:" + type + params + ",[1,2,3]";
return addJsonViewTab(TEST_JSON_URL).then(
async function () {
ok(isValid, "The JSON Viewer should only load for valid content types.");
await SpecialPowers.spawn(
gBrowser.selectedBrowser,
[type],
function (contentType) {
is(
content.document.contentType,
contentType,
"Got the right content type"
);
}
);
const count = await getElementCount(".jsonPanelBox .treeTable .treeRow");
is(count, 3, "There must be expected number of rows");
},
function () {
ok(
!isValid,
"The JSON Viewer should only not load for invalid content types."
);
}
);
}