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/*global describe it before*/
var expect = require('chai').expect;
describe('vfs-socket', function () {
var fs = require('fs');
if (!fs.existsSync) fs.existsSync = require('path').existsSync;
var net = require('net');
var root = __dirname + "/mock/";
var base = root.substr(0, root.length - 1);
var Consumer = require('../consumer').Consumer;
var Worker = require('../worker').Worker;
var Transport = require('../worker').smith.Transport;
var worker = new Worker(require('vfs-local')({
root: root,
defaultEnv: { CUSTOM: 43 },
checkSymlinks: true
}));
var consumer = new Consumer();
var vfs;
before(function (done) {
var server = net.createServer(function (socket) {
worker.connect(new Transport(socket, socket, process.env.TRACE && "worker"), function (err, remote) {
if (err) throw err;
});
worker.on("disconnect", function (err) {
if (err) throw err;
});
});
server.listen(function () {
var port = server.address().port;
var socket = net.connect(port, function () {
consumer.connect(new Transport(socket, socket, process.env.TRACE && "consumer"), function (err, remote) {
if (err) throw err;
vfs = require('vfs-lint')(remote);
done();
});
consumer.on("disconnect", function (err) {
if (err) throw err;
});
});
});
});
describe('vfs.resolve()', function () {
it('should prepend root when resolving virtual paths', function (done) {
var vpath = "/dir/stuff.json";
vfs.resolve(vpath, {}, function (err, meta) {
if (err) throw err;
expect(meta).property("path").equals(base + vpath);
done();
});
});
it('should reject paths that resolve outside the root', function (done) {
vfs.resolve("/../test-socket.js", {}, function (err, meta) {
expect(err).property("code").equals("EACCESS");
done();
});
});
it('should not prepend when already rooted', function (done) {
var path = base + "/file.txt";
vfs.resolve(path, { alreadyRooted: true }, function (err, meta) {
if (err) throw err;
expect(meta).property("path").equal(path);
done();
});
});
it('should error with ENOENT when the path is invalid', function (done) {
vfs.resolve("/notexists.txt", {}, function (err, meta) {
expect(err).property("code").equals("ENOENT");
done();
});
});
});
describe('vfs.stat()', function () {
it('should return stat info for the text file', function (done) {
vfs.stat("/file.txt", {}, function (err, stat) {
if (err) throw err;
expect(stat).property("name").equal("file.txt");
expect(stat).property("size").equal(23);
expect(stat).property("mime").equal("text/plain");
done();
});
});
it("should error with ENOENT when the file doesn't exist", function (done) {
vfs.stat("/badfile.json", {}, function (err, stat) {
expect(err).property("code").equal("ENOENT");
done();
});
});
});
describe('vfs.readfile()', function () {
it("should read the text file", function (done) {
vfs.readfile("/file.txt", {}, function (err, meta) {
if (err) throw err;
expect(meta).property("mime").equals("text/plain");
expect(meta).property("size").equals(23);
expect(meta).property("etag");
expect(meta).property("stream").property("readable");
var stream = meta.stream;
var chunks = [];
var length = 0;
stream.on("data", function (chunk) {
chunks.push(chunk);
length += chunk.length;
});
stream.on("end", function () {
expect(length).equal(23);
var body = chunks.join("");
expect(body).equal("This is a simple file!\n");
done();
});
});
});
it("should error with ENOENT on missing files", function (done) {
vfs.readfile("/badfile.json", {}, function (err, meta) {
expect(err).property("code").equal("ENOENT");
done();
});
});
it("should error with EISDIR on directories", function (done) {
vfs.readfile("/", {}, function (err, meta) {
expect(err).property("code").equal("EISDIR");
done();
});
});
it("should support head requests", function (done) {
vfs.readfile("/file.txt", {head:true}, function (err, meta) {
if (err) throw err;
expect(meta).property("mime").equal("text/plain");
expect(meta).property("size").equal(23);
expect(meta).property("mime").ok;
expect(meta.stream).not.ok;
done();
});
});
it("should support 304 via etags", function (done) {
vfs.readfile("/file.txt", {head:true}, function (err, meta) {
if (err) throw err;
expect(meta).property("etag").ok;
var etag = meta.etag;
vfs.readfile("/file.txt", {etag:etag}, function (err, meta) {
if (err) throw err;
expect(meta).property("mime").equal("text/plain");
expect(meta).property("size").equal(23);
expect(meta).property("notModified").ok;
expect(meta.stream).not.ok;
done();
});
});
});
it("should support range requests", function (done) {
vfs.readfile("/file.txt", {range:{start:1,end:3}}, function (err, meta) {
if (err) throw err;
expect(meta).property("mime").equal("text/plain");
expect(meta).property("size").equal(3);
expect(meta).property("etag").ok;
expect(meta).property("partialContent").deep.equal({ start: 1, end: 3, size: 23 });
expect(meta).property("stream").ok;
var stream = meta.stream;
var chunks = [];
stream.on("data", function (chunk) {
chunks.push(chunk);
});
stream.on("end", function () {
var data = chunks.join("");
expect(data).equal("his");
done();
});
});
});
it("should support getting the last 10 bytes", function (done) {
vfs.readfile("/file.txt", {range:{end:10},head:true}, function (err, meta) {
if (err) throw err;
expect(meta).property("size").equal(10);
expect(meta).property("etag").ok;
expect(meta).property("partialContent").deep.equal({ start: 13, end: 22, size: 23 });
done();
});
});
it("should get rangeNotSatisfiable if start and end are both omitted", function (done) {
vfs.readfile("/file.txt", {range:{}}, function (err, meta) {
if (err) throw err;
expect(meta).property("rangeNotSatisfiable");
done();
});
});
it("should get rangeNotSatisfiable if start is after end", function (done) {
vfs.readfile("/file.txt", {range:{start:5,end:4}}, function (err, meta) {
if (err) throw err;
expect(meta).property("rangeNotSatisfiable");
done();
});
});
});
describe('vfs.readdir()', function () {
it("should read the directory", function (done) {
vfs.readdir("/", {}, function (err, meta) {
if (err) throw err;
expect(meta).property("etag");
expect(meta).property("stream").property("readable");
var stream = meta.stream;
var parts = [];
stream.on("data", function (part) {
parts.push(part);
});
stream.on("end", function () {
expect(parts).length(5);
done();
});
});
});
it("should error with ENOENT when the folder doesn't exist", function (done) {
vfs.readdir("/fake", {}, function (err, meta) {
expect(err).property("code").equal("ENOENT");
done();
});
});
it("should error with ENOTDIR when the path is a file", function (done) {
vfs.readdir("/file.txt", {}, function (err, meta) {
expect(err).property("code").equal("ENOTDIR");
done();
});
});
it("should support head requests", function (done) {
vfs.readdir("/", {head:true}, function (err, meta) {
if (err) throw err;
expect(meta).property("etag").ok;
expect(meta.stream).not.ok;
done();
});
});
it("should support 304 via etags", function (done) {
vfs.readdir("/", {head:true}, function (err, meta) {
if (err) throw err;
expect(meta).property("etag").ok;
var etag = meta.etag;
vfs.readdir("/", {etag:etag}, function (err, meta) {
if (err) throw err;
expect(meta).property("notModified").ok;
expect(meta.stream).not.ok;
done();
});
});
});
});
describe('vfs.mkfile()', function () {
it("should create a file using using readble in options", function (done) {
var stream = fs.createReadStream(__filename);
var vpath = "/test.js";
// Make sure the file doesn't exist.
expect(fs.existsSync(base + vpath)).not.ok;
vfs.mkfile(vpath, { stream: stream }, function (err, meta) {
if (err) {
fs.unlinkSync(base + vpath);
return done(err);
}
var actual = fs.readFileSync(base + vpath, "utf8");
var original = fs.readFileSync(__filename, "utf8");
fs.unlinkSync(base + vpath);
expect(actual).equal(original);
done();
});
});
it("should create a file using writable in callback", function (done) {
var vpath = "/test.js";
// Make sure the file doesn't exist.
expect(fs.existsSync(base + vpath)).not.ok;
vfs.mkfile(vpath, {}, function (err, meta) {
if (err) {
fs.unlinkSync(base + vpath);
return done(err);
}
expect(meta).property("stream").property("writable").ok;
var writable = meta.stream;
var readable = fs.createReadStream(__filename);
readable.pipe(writable);
writable.on("close", function () {
var actual = fs.readFileSync(base + vpath, "utf8");
var original = fs.readFileSync(__filename, "utf8");
fs.unlinkSync(base + vpath);
expect(actual).equal(original);
done();
});
});
});
it("should update an existing file using readble in options", function (done) {
var vpath = "/changeme.txt";
var stream = fs.createReadStream(__filename);
fs.writeFileSync(base + vpath, "Original Content\n");
vfs.mkfile(vpath, {stream: stream}, function (err, meta) {
if (err) {
fs.unlinkSync(base + vpath);
return done(err);
}
var actual = fs.readFileSync(base + vpath, "utf8");
var original = fs.readFileSync(__filename, "utf8");
fs.unlinkSync(base + vpath);
expect(actual).equal(original);
done();
});
}),
it("should update an existing file using writable in callback", function (done) {
var vpath = "/changeme.txt";
fs.writeFileSync(base + vpath, "Original Content\n");
vfs.mkfile(vpath, {}, function (err, meta) {
if (err) {
fs.unlinkSync(base + vpath);
return done(err);
}
expect(meta).property("stream").property("writable").ok;
var writable = meta.stream;
var readable = fs.createReadStream(__filename);
readable.pipe(writable);
writable.on("close", function () {
var actual = fs.readFileSync(base + vpath, "utf8");
var original = fs.readFileSync(__filename, "utf8");
fs.unlinkSync(base + vpath);
expect(actual).equal(original);
done();
});
});
});
});
describe('vfs.mkdir()', function () {
it("should create a directory", function (done) {
var vpath = "/newdir";
// Make sure it doesn't exist yet
expect(fs.existsSync(base + vpath)).not.ok;
vfs.mkdir(vpath, {}, function (err, meta) {
if (err) {
fs.rmdirSync(base + vpath);
return done(err);
}
expect(fs.existsSync(base + vpath)).ok;
fs.rmdirSync(base + vpath);
done();
});
});
it("should error with EEXIST when the directory already exists", function (done) {
vfs.mkdir("/dir", {}, function (err, meta) {
expect(err).property("code").equal("EEXIST");
done();
});
});
it("should error with EEXIST when a file already exists at the path", function (done) {
vfs.mkdir("/file.txt", {}, function (err, meta) {
expect(err).property("code").equal("EEXIST");
done();
});
});
});
describe('vfs.rmfile()', function () {
it("should delete a file", function (done) {
var vpath = "/deleteme.txt";
fs.writeFileSync(base + vpath, "DELETE ME!\n");
expect(fs.existsSync(base + vpath)).ok;
vfs.rmfile(vpath, {}, function (err, meta) {
if (err) throw err;
expect(fs.existsSync(base + vpath)).not.ok;
done();
});
});
it("should error with ENOENT if the file doesn't exist", function (done) {
var vpath = "/badname.txt";
expect(fs.existsSync(base + vpath)).not.ok;
vfs.rmfile(vpath, {}, function (err, meta) {
expect(err).property("code").equal("ENOENT");
done();
});
});
it("should error with EISDIR if the path is a directory", function (done) {
var vpath = "/dir";
expect(fs.existsSync(base + vpath)).ok;
vfs.rmfile(vpath, {}, function (err, meta) {
expect(err).property("code").equal("EISDIR");
done();
});
});
});
describe('vfs.rmdir()', function () {
it("should delete a directory", function (done) {
var vpath = "/newdir";
fs.mkdirSync(base + vpath);
expect(fs.existsSync(base + vpath)).ok;
vfs.rmdir(vpath, {}, function (err, meta) {
if (err) throw err;
expect(fs.existsSync(base + vpath)).not.ok;
done();
});
});
it("should error with ENOENT if the directory doesn't exist", function (done) {
var vpath = "/baddir";
expect(fs.existsSync(base + vpath)).not.ok;
vfs.rmdir(vpath, {}, function (err, meta) {
expect(err).property("code").equal("ENOENT");
done();
});
});
it("should error with ENOTDIR if the path is a file", function (done) {
var vpath = "/file.txt";
expect(fs.existsSync(base + vpath)).ok;
vfs.rmdir(vpath, {}, function (err, meta) {
expect(err).property("code").equal("ENOTDIR");
done();
});
});
it("should do recursive deletes if options.recursive is set", function (done) {
fs.mkdirSync(base + "/foo");
fs.writeFileSync(base + "/foo/bar.txt", "Hello");
expect(fs.existsSync(base + "/foo")).ok;
expect(fs.existsSync(base + "/foo/bar.txt")).ok;
vfs.rmdir("/foo", {recursive:true}, function (err, meta) {
if (err) throw err;
expect(fs.existsSync(base + "/foo/bar.txt")).not.ok;
expect(fs.existsSync(base + "/foo")).not.ok;
done();
});
});
});
describe('vfs.rename()', function () {
it("should rename a file using options.to", function (done) {
var before = "/start.txt";
var after = "/end.txt";
var text = "Move me please\n";
fs.writeFileSync(base + before, text);
expect(fs.existsSync(base + before)).ok;
expect(fs.existsSync(base + after)).not.ok;
vfs.rename(before, {to: after}, function (err, meta) {
if (err) throw err;
expect(fs.existsSync(base + before)).not.ok;
expect(fs.existsSync(base + after)).ok;
expect(fs.readFileSync(base + after, "utf8")).equal(text);
fs.unlinkSync(base + after);
done();
});
});
it("should rename a file using options.from", function (done) {
var before = "/start.txt";
var after = "/end.txt";
var text = "Move me please\n";
fs.writeFileSync(base + before, text);
expect(fs.existsSync(base + before)).ok;
expect(fs.existsSync(base + after)).not.ok;
vfs.rename(after, {from: before}, function (err, meta) {
if (err) throw err;
expect(fs.existsSync(base + before)).not.ok;
expect(fs.existsSync(base + after)).ok;
expect(fs.readFileSync(base + after, "utf8")).equal(text);
fs.unlinkSync(base + after);
done();
});
});
it("should error with ENOENT if the source doesn't exist", function (done) {
vfs.rename("/notexist", {to:"/newname"}, function (err, meta) {
expect(err).property("code").equal("ENOENT");
done();
});
});
});
describe('vfs.copy()', function () {
it("should copy a file using options.to", function (done) {
var source = "/file.txt";
var target = "/copy.txt";
var text = fs.readFileSync(base + source, "utf8");
vfs.copy(source, {to: target}, function (err, meta) {
if (err) throw err;
expect(fs.existsSync(base + target)).ok;
expect(fs.readFileSync(base + target, "utf8")).equal(text);
fs.unlinkSync(base + target);
done();
});
});
it("should copy a file using options.from", function (done) {
var source = "/file.txt";
var target = "/copy.txt";
var text = fs.readFileSync(base + source, "utf8");
vfs.copy(target, {from: source}, function (err, meta) {
if (err) throw err;
expect(fs.existsSync(base + target)).ok;
expect(fs.readFileSync(base + target, "utf8")).equal(text);
fs.unlinkSync(base + target);
done();
});
});
it("should error with ENOENT if the source doesn't exist", function (done) {
vfs.copy("/badname.txt", {to:"/copy.txt"}, function (err, meta) {
expect(err).property("code").equal("ENOENT");
done();
});
});
});
describe('vfs.symlink()', function () {
it("should create a symlink", function (done) {
var target = "file.txt";
var vpath = "/newlink.txt";
var text = fs.readFileSync(root + target, "utf8");
vfs.symlink(vpath, {target: target}, function (err, meta) {
if (err) throw err;
expect(fs.readFileSync(base + vpath, "utf8")).equal(text);
fs.unlinkSync(base + vpath);
done();
});
});
it("should error with EEXIST if the file already exists", function (done) {
vfs.symlink("/file.txt", {target:"/this/is/crazy"}, function (err, meta) {
expect(err).property("code").equal("EEXIST");
done();
});
});
});
describe('vfs.watch()', function () {
it("should notice a directly watched file change", function (done) {
var vpath = "/newfile.txt";
expect(fs.existsSync(base + vpath)).not.ok;
var writable = fs.createWriteStream(base + vpath);
vfs.watch(vpath, {}, function (err, meta) {
if (err) throw err;
expect(meta).property("watcher").ok;
var watcher = meta.watcher;
watcher.on("change", function (event, filename) {
watcher.close();
expect(event).equal("change");
expect(filename).equal(vpath.substr(1));
writable.end();
writable.on("close", function () {
fs.unlinkSync(base + vpath);
done();
});
});
writable.write("Change!");
});
});
it("should notice a new file in a watched directory", function (done) {
var vpath = "/newfile.txt";
expect(fs.existsSync(base + vpath)).not.ok;
vfs.watch("/", {}, function (err, meta) {
if (err) throw err;
expect(meta).property("watcher").ok;
var watcher = meta.watcher;
watcher.on("change", function (event, filename) {
watcher.close();
expect(event).ok;
expect(filename).equal(vpath.substr(1));
fs.unlinkSync(base + vpath);
done();
});
fs.writeFileSync(base + vpath, "newfile!");
});
});
});
describe('vfs.connect()', function () {
var net = require('net');
it("should connect to a tcp server and ping-pong", function (done) {
var stream;
var server = net.createServer(function (client) {
client.setEncoding('utf8');
client.once("data", function (chunk) {
expect(chunk).equal("ping");
stream.once("data", function (chunk) {
expect(chunk).equal("pong");
client.end();
stream.end();
server.close();
done();
});
client.write("pong");
});
});
server.listen(function () {
var port = server.address().port;
vfs.connect(port, {encoding:"utf8"}, function (err, meta) {
if (err) throw err;
expect(meta).property("stream").ok;
stream = meta.stream;
stream.write("ping");
});
});
});
});
describe('vfs.spawn()', function () {
it("should spawn a child process", function (done) {
var args = ["-e", "process.stdin.pipe(process.stdout);try{process.stdin.resume()}catch(e){};"];
vfs.spawn(process.execPath, {args: args, stdoutEncoding: "utf8"}, function (err, meta) {
if (err) throw err;
expect(meta).property("process").ok;
var child = meta.process;
expect(child).property("stdout").ok;
expect(child).property("stdin").ok;
child.stdout.on("data", function (chunk) {
expect(chunk).equal("echo me");
child.stdout.on("end", function () {
done();
});
child.stdin.end();
});
child.stdin.write("echo me");
});
});
it("should have environment variables from process, fsOptions, and call", function (done) {
process.env.PROCESS = 42;
var args = ["-e", "console.log([process.env.PROCESS, process.env.CUSTOM, process.env.LOCAL].join(','))"];
vfs.spawn(process.execPath, {args:args, stdoutEncoding: "utf8", stderrEncoding: "utf8", env: {LOCAL:44}}, function (err, meta) {
if (err) throw err;
expect(meta).property("process").ok;
var child = meta.process;
var stdout = [];
child.stdout.on("data", function (chunk) {
stdout.push(chunk);
});
child.stdout.on("end", function () {
stdout = stdout.join("");
expect(stdout).equal("42,43,44\n");
done();
});
});
});
it("should exit with code 127 if the file does not exist", function(done) {
vfs.spawn("i_dont_exist_321", {}, function(err, meta) {
var child = meta.process;
child.stdout.on("data", function (chunk) {
console.log(chunk + "");
});
child.on("exit", function(code, signal) {
expect(code).equal(127);
done();
});
});
});
});
describe('vfs.execFile()', function () {
it("should exec a child process", function (done) {
var args = ["-p", "-e", "process.version"];
vfs.execFile(process.execPath, {args:args}, function (err, meta) {
if (err) throw err;
expect(meta).property("stdout").equal(process.version + "\n");
expect(meta).property("stderr").equal("");
done();
});
});
it("should have environment variables from process, fsOptions, and call", function (done) {
process.env.PROCESS = 42;
var args = ["-e", "console.log([process.env.PROCESS, process.env.CUSTOM, process.env.LOCAL].join(','))"];
vfs.execFile(process.execPath, {args:args, env: {LOCAL:44}}, function (err, meta) {
if (err) throw err;
expect(meta).property("stdout").equal("42,43,44\n");
done();
});
});
});
describe('vfs.on(), vfs.off(), vfs.emit()', function () {
it ("should register an event listener and catch an event", function (done) {
vfs.on("myevent", onEvent, function (err) {
if (err) throw err;
vfs.emit("myevent", 42, function (err) {
if (err) throw err;
});
});
function onEvent(data) {
expect(data).equal(42);
vfs.off("myevent", onEvent, done);
}
});
it("should catch multiple events of the same type", function (done) {
var times = 0;
vfs.on("myevent", onEvent, function (err) {
if (err) throw err;
vfs.emit("myevent", 43, function (err) {
if (err) throw err;
});
vfs.emit("myevent", 43, function (err) {
if (err) throw err;
});
});
function onEvent(data) {
expect(data).equal(43);
if (++times === 2) {
vfs.off("myevent", onEvent, done);
}
}
});
it("should call multiple listeners for a single event", function (done) {
var times = 0;
vfs.on("myevent", onEvent1, function (err) {
if (err) throw err;
vfs.on("myevent", onEvent2, function (err) {
if (err) throw err;
vfs.emit("myevent", 44, function (err) {
if (err) throw err;
});
});
});
function onEvent1(data) {
expect(data).equal(44);
times++;
}
function onEvent2(data) {
expect(data).equal(44);
if (++times === 2) {
vfs.off("myevent", onEvent1, function (err) {
if (err) throw err;
vfs.off("myevent", onEvent2, done);
});
}
}
});
it("should stop listening after a handler is removed", function (done) {
vfs.on("myevent", onEvent, function (err) {
if (err) throw err;
vfs.emit("myevent", 45, function (err) {
if (err) throw err;
vfs.off("myevent", onEvent, function (err) {
if (err) throw err;
vfs.emit("myevent", 46, done);
});
});
});
function onEvent(data) {
expect(data).equal(45);
}
});
it("should not remove all listeners", function (done) {
var times = 0;
vfs.on("myevent", onEvent, function (err) {
if (err) throw err;
vfs.on("myevent", onEvent, function (err) {
if (err) throw err;
vfs.off("myevent", onEvent, function (err) {
if (err) throw err;
vfs.emit("myevent", 45, function (err) {
if (err) throw err;
expect(times).equal(1);
done();
});
});
});
});
function onEvent(data) {
times++;
expect(data).equal(45);
}
});
});
describe('vfs.extend()', function () {
it("should extend using a local file", function (done) {
vfs.extend("math", {file: __dirname + "/math.js"}, function (err, meta) {
if (err) throw err;
expect(meta).property("api").ok;
var api = meta.api;
expect(api).property("add").a("function");
expect(api).property("multiply").a("function");
api.add(3, 4, function (err, result) {
if (err) throw err;
expect(result).equal(3 + 4);
vfs.unextend("math", {}, done);
});
});
});
it("should extend using a string", function (done) {
var code = fs.readFileSync(__dirname + "/math.js", "utf8");
vfs.extend("math2", {code: code}, function (err, meta) {
if (err) throw err;
expect(meta).property("api").ok;
var api = meta.api;
expect(api).property("add").a("function");
expect(api).property("multiply").a("function");
api.add(3, 4, function (err, result) {
if (err) throw err;
expect(result).equal(3 + 4);
vfs.unextend("math2", {}, done);
});
});
});
it("should extend using a stream", function (done) {
var stream = fs.createReadStream(__dirname + "/math.js");
vfs.extend("math3", {stream: stream}, function (err, meta) {
if (err) throw err;
expect(meta).property("api").ok;
var api = meta.api;
expect(api).property("add").a("function");
expect(api).property("multiply").a("function");
api.add(3, 4, function (err, result) {
if (err) throw err;
expect(result).equal(3 + 4);
vfs.unextend("math3", {}, done);
});
});
});
it("should error with EEXIST if the same extension is added twice", function (done) {
vfs.extend("math", {file: __dirname + "/math.js"}, function (err, meta) {
if (err) throw err;
expect(meta).property("api").ok;
vfs.extend("math", {file: __dirname + "/math.js"}, function (err, meta) {
expect(err).property("code").equal("EEXIST");
vfs.unextend("math", {}, done);
});
});
});
it("should allow a redefine if options.redefine is set", function (done) {
vfs.extend("test", {file: __dirname + "/math.js"}, function (err, meta) {
if (err) throw err;
expect(meta).property("api").ok;
vfs.extend("test", {redefine: true, file: __dirname + "/math.js"}, function (err, meta) {
if (err) throw err;
expect(meta).property("api").ok;
vfs.unextend("test", {}, done);
});
});
});
});
describe('vfs.unextend()', function () {
it("should remove an extension", function (done) {
vfs.extend("math7", {file: __dirname + "/math.js"}, function (err, meta) {
if (err) throw err;
expect(meta).property("api").ok;
vfs.use("math7", {}, function (err, meta) {
if (err) throw err;
expect(meta).property("api").ok;
vfs.unextend("math7", {}, function (err, meta) {
if (err) throw err;
vfs.use("math7", {}, function (err, meta) {
expect(err).property("code").equal("ENOENT");
done();
});
});
});
});
});
});
describe('vfs.use()', function () {
it("should load an existing api", function (done) {
vfs.extend("math4", {file: __dirname + "/math.js"}, function (err, meta) {
if (err) throw err;
expect(meta).property("api").ok;
vfs.use("math4", {}, function (err, meta) {
if (err) throw err;
expect(meta).property("api").ok;
var api = meta.api;
expect(api).property("add").a("function");
expect(api).property("multiply").a("function");
api.add(3, 4, function (err, result) {
if (err) throw err;
expect(result).equal(3 + 4);
vfs.unextend("math4", {}, done);
});
});
});
});
it("should error with ENOENT if the api doesn't exist", function (done) {
vfs.use("notfound", {}, function (err, meta) {
expect(err).property("code").equal("ENOENT");
done();
});
});
});
});