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// This file needs to contain glue to rephrase the Mocha testsuite framework in
// a way that the xpcshell test suite can understand.
var { Assert } = ChromeUtils.importESModule(
"resource://testing-common/Assert.sys.mjs"
);
var requireCache = new Map();
// Preload an assert module
var assert = new Assert();
assert.doesNotThrow = function (block, message) {
message = message ? " " + message : ".";
try {
block();
} catch (e) {
this.report(true, e, null, "Got unwanted exception" + message);
}
};
requireCache.set("assert", assert);
// Preload an fs module
var fs = {
readFile(filename, options, callback) {
if (callback === undefined) {
callback = options;
options = {};
}
// Convert according to encoding. For the moment, we don't support this
// node.js feature in the shim since we don't need to.
var translator = contents => contents;
if (options !== undefined && "encoding" in options) {
translator = function () {
throw new Error("I can't do this!");
};
}
Promise.resolve(filename)
.then(do_get_file)
.then(file => IOUtils.read(file.path))
.then(translator)
.then(contents => callback(undefined, contents), callback);
},
};
requireCache.set("fs", fs);
var { jsmime } = ChromeUtils.import("resource:///modules/jsmime.jsm");
requireCache.set("jsmime", jsmime);
function require(path) {
if (requireCache.has(path)) {
return requireCache.get(path);
}
let file;
if (path.startsWith("test/")) {
let name = path.substring("test/".length);
file = "resource://testing-common/jsmime/" + name + ".js";
} else {
file = "resource:///modules/jsmime/" + path + ".js";
}
var globalObject = {
define: innerDefine.bind(this, path),
};
Services.scriptloader.loadSubScript(file, globalObject);
return requireCache.get(path);
}
function innerDefine(moduleName, dfn) {
if (typeof dfn !== "function") {
throw new Error("What is going on here?");
}
function resolvingRequire(path) {
if (path.startsWith("./")) {
path = path.substring(2);
}
return require(path);
}
var result = dfn(resolvingRequire);
requireCache.set(moduleName, result);
}
var define = innerDefine.bind(this, "xpcshell-test");
// Mocha TDD UI Bindings
// ---------------------
/**
* A block of tests, from the suite class.
*/
function MochaSuite(name) {
this.name = name;
this.setup = [];
this.tests = [];
this.teardown = [];
this.suites = [];
}
// The real code for running a suite of tests, written as async function.
MochaSuite.prototype._runSuite = async function () {
info("Running suite " + this.name);
for (let setup_ of this.setup) {
await runFunction(setup_);
}
for (let test_ of this.tests) {
info("Running test " + test_.name);
await runFunction(test_.test);
}
for (let suite_ of this.suites) {
await suite_.runSuite();
}
for (let fn of this.teardown) {
await runFunction(fn);
}
info("Finished suite " + this.name);
};
// The outer call to run a test suite, which returns a promise of completion.
MochaSuite.prototype.runSuite = function () {
return this._runSuite();
};
// Run the given function, returning a promise of when the test will complete.
function runFunction(fn) {
let completed = new Promise(function (resolve, reject) {
function onEnd(error) {
if (error !== undefined) {
reject(error);
} else {
resolve();
}
}
// If the function is expecting an argument, that argument is the callback
// above. If it's not, then it may be returning a promise.
if (fn.length == 1) {
fn(onEnd);
} else {
// Promise.resolve nicely handles both promises and not-promise values for
// us.
resolve(fn());
}
});
return completed;
}
var currentSuite = new MochaSuite("");
function suite(name, tests) {
name = name.toString();
if (/[\x80-]/.exec(name)) {
name = "<unprintable name>";
}
let suiteParent = currentSuite;
currentSuite = new MochaSuite(name);
suiteParent.suites.push(currentSuite);
tests();
currentSuite = suiteParent;
}
function test(name, block) {
name = name.toString();
if (/[\x80-]/.exec(name)) {
name = "<unprintable name>";
}
currentSuite.tests.push({ name, test: block });
}
function setup(block) {
currentSuite.setup.push(block);
}
function teardown(block) {
currentSuite.teardown.push(block);
}
// The actual binding xpcshell needs to do its work.
function run_test() {
add_task(() => currentSuite.runSuite());
run_next_test();
}
|
