Add two more tests

lib/providers/file.js

@@ -153,7 +153,6 @@ FileSystemProvider.prototype.getFile = function (container, file, cb) {
 
 FileSystemProvider.prototype.removeFile = function (container, file, cb) {
     if(!validateName(container, cb)) return;
-    var container = options.container;
     if(!validateName(file, cb)) return;
 
     var filePath = path.join(this.root, container, file);

test/fs.test.js

@@ -118,6 +118,21 @@ describe('FileSystem based storage provider', function () {
             });
         });
 
+        it('should remove a file', function (done) {
+            client.removeFile('c1', 'f1.txt', function (err) {
+                assert(!err);
+                done(err);
+            });
+        });
+
+        it('should get no files from a container', function (done) {
+            client.getFiles('c1', function (err, files) {
+                assert(!err);
+                assert.equal(0, files.length);
+                done(err, files);
+            });
+        });
+
         it('should destroy a container c1', function (done) {
             client.destroyContainer('c1', function (err, container) {
                 // console.error(err);