gecko-dev/js/xpconnect/tests/unit/component-file.js

105 строки
3.1 KiB
JavaScript

/* 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/. */
const {XPCOMUtils} = ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.importGlobalProperties(['File']);
const Assert = {
ok(cond, text) {
// we don't have the test harness' utilities in this scope, so we need this
// little helper. In the failure case, the exception is propagated to the
// caller in the main run_test() function, and the test fails.
if (!cond)
throw "Failed check: " + text;
}
};
function FileComponent() {
this.wrappedJSObject = this;
}
FileComponent.prototype =
{
doTest: function(cb) {
// throw if anything goes wrong
// find the current directory path
var file = Cc["@mozilla.org/file/directory_service;1"]
.getService(Ci.nsIProperties)
.get("CurWorkD", Ci.nsIFile);
file.append("xpcshell.ini");
// should be able to construct a file
var f1, f2;
Promise.all([
File.createFromFileName(file.path).then(f => { f1 = f; }),
File.createFromNsIFile(file).then(f => { f2 = f; }),
])
.then(() => {
// do some tests
Assert.ok(f1 instanceof File, "Should be a DOM File");
Assert.ok(f2 instanceof File, "Should be a DOM File");
Assert.ok(f1.name == "xpcshell.ini", "Should be the right file");
Assert.ok(f2.name == "xpcshell.ini", "Should be the right file");
Assert.ok(f1.type == "", "Should be the right type");
Assert.ok(f2.type == "", "Should be the right type");
})
.then(() => {
var threw = false;
try {
// Needs a ctor argument
var f7 = new File();
} catch (e) {
threw = true;
}
Assert.ok(threw, "No ctor arguments should throw");
var threw = false;
try {
// Needs a valid ctor argument
var f7 = new File(Date(132131532));
} catch (e) {
threw = true;
}
Assert.ok(threw, "Passing a random object should fail");
// Directories fail
var dir = Cc["@mozilla.org/file/directory_service;1"]
.getService(Ci.nsIProperties)
.get("CurWorkD", Ci.nsIFile);
return File.createFromNsIFile(dir)
})
.then(() => {
Assert.ok(false, "Can't create a File object for a directory");
}, () => {
Assert.ok(true, "Can't create a File object for a directory");
})
.then(() => {
cb(true);
});
},
// nsIClassInfo + information for XPCOM registration code in XPCOMUtils.jsm
classDescription: "File in components scope code",
classID: Components.ID("{da332370-91d4-464f-a730-018e14769cab}"),
contractID: "@mozilla.org/tests/component-file;1",
// nsIClassInfo
flags: 0,
interfaces: [Ci.nsIClassInfo],
getScriptableHelper: function getScriptableHelper() {
return null;
},
// nsISupports
QueryInterface: ChromeUtils.generateQI([Ci.nsIClassInfo])
};
var gComponentsArray = [FileComponent];
this.NSGetFactory = XPCOMUtils.generateNSGetFactory(gComponentsArray);