define(["Filer", "util"], function(Filer, util) {

  describe('FileSystemShell.exec', function() {
    beforeEach(util.setup);
    afterEach(util.cleanup);

    it('should be a function', function() {
      var shell = util.shell();
      expect(shell.exec).to.be.a('function');
    });

    it('should be able to execute a command .js file from the filesystem', function(done) {
      var fs = util.fs();
      var shell = fs.Shell();
      var cmdString = "fs.writeFile(args[0], args[1], callback);";

      fs.writeFile('/cmd.js', cmdString, function(error) {
        if(error) throw error;

        shell.exec('/cmd.js', ['/test', 'hello world'], function(error, result) {
          if(error) throw error;

          fs.readFile('/test', 'utf8', function(error, data) {
            if(error) throw error;
            expect(data).to.equal('hello world');
            done();
          });
        });
      });
    });
  });

});