add unit tests

services/filestore/test/unit/coffee/AWSSDKPersistorManagerTests.coffee

@@ -251,7 +251,22 @@ describe "AWSSDKPersistorManager", ->
 	describe "directorySize", ->
 
 		it "should list the directory content using s3.listObjects", (done) ->
+			@s3.listObjects.callsArgWith 1, null, Contents: []
+			@AWSSDKPersistorManager.directorySize @bucketName, @key, (err) =>
+				expect(err).to.not.be.ok
+				expect(@s3.listObjects.calledOnce, "called only once").to.be.true
+				expect((@s3.listObjects.calledWith Bucket: @bucketName, Prefix: @key),
+					"called with correct arguments").to.be.true
 				done()
 
-		it "should sum directory files size", (done) ->
+		it "should dispatch the error from s3.listObjects", (done) ->
+			@s3.listObjects.callsArgWith 1, @error
+			@AWSSDKPersistorManager.directorySize @bucketName, @key, (err) =>
+				expect(err).to.equal @error
+				done()
+
+		it "should sum directory files sizes", (done) ->
+			@s3.listObjects.callsArgWith 1, null, Contents: [ { Size: 1024 }, { Size: 2048 }]
+			@AWSSDKPersistorManager.directorySize @bucketName, @key, (err, size) =>
+				expect(size).to.equal 3072
 				done()

services/filestore/test/unit/coffee/FSPersistorManagerTests.coffee

@@ -18,6 +18,10 @@ describe "FSPersistorManagerTests", ->
       unlink:sinon.stub()
       rmdir:sinon.stub()
       exists:sinon.stub()
+      readdir:sinon.stub()
+      openSync:sinon.stub()
+      fstatSync:sinon.stub()
+      closeSync:sinon.stub()
     @Rimraf = sinon.stub()
     @LocalFileWriter =
       writeStream: sinon.stub()
@@ -211,5 +215,15 @@ describe "FSPersistorManagerTests", ->
 
   describe "directorySize", ->
 
-    it "should sum directory files size", (done) ->
+    it "should propogate the error", (done) ->
+      @Fs.readdir.callsArgWith(1, @error)
+      @FSPersistorManager.directorySize @location, @name1, (err, totalsize) =>
+        err.should.equal @error
+        done()
+
+    it "should sum directory files size", (done) ->
+      @Fs.readdir.callsArgWith(1, null, [ {'file1'}, {'file2'} ])
+      @Fs.fstatSync.returns({size : 1024})
+      @FSPersistorManager.directorySize @location, @name1, (err, totalsize) =>
+        expect(totalsize).to.equal 2048
         done()

services/filestore/test/unit/coffee/FileControllerTests.coffee

@@ -22,6 +22,7 @@ describe "FileController", ->
 			getFile: sinon.stub()
 			deleteFile: sinon.stub()
 			insertFile: sinon.stub()
+			getDirectorySize: sinon.stub()
 		@LocalFileWriter = {}
 		@controller = SandboxedModule.require modulePath, requires:
 			"./LocalFileWriter":@LocalFileWriter
@@ -155,5 +156,15 @@ describe "FileController", ->
 
 	describe "directorySize", ->
 
-    it "should call the file handler the directory size", (done) ->
+		it "should return total directory size bytes", (done) ->
+			@FileHandler.getDirectorySize.callsArgWith(2, null, 1024)
+			@controller.directorySize @req, json:(result)=>
+				expect(result['total bytes']).to.equal 1024
 				done()
+
+		it "should send a 500 if there was an error", (done)->
+			@FileHandler.getDirectorySize.callsArgWith(2, "error")
+			@res.send = (code)->
+				code.should.equal 500
+				done()
+			@controller.directorySize @req, @res

services/filestore/test/unit/coffee/FileHandlerTests.coffee

@@ -20,6 +20,7 @@ describe "FileHandler", ->
 			deleteDirectory: sinon.stub()
 			sendStream: sinon.stub()
 			insertFile: sinon.stub()
+			directorySize: sinon.stub()
 		@LocalFileWriter =
 			writeStream: sinon.stub()
 			deleteFile: sinon.stub()
@@ -193,7 +194,12 @@ describe "FileHandler", ->
 				@LocalFileWriter.deleteFile.calledWith(@stubbedPath).should.equal true
 				done()
 
-  describe "directorySize", ->
+	describe "getDirectorySize", ->
 
-    it "should call the filestore manager to get directory size", (done) ->
+		beforeEach ->
+			@PersistorManager.directorySize.callsArgWith(2)
+
+		it "should call the filestore manager to get directory size", (done)->
+			@handler.getDirectorySize @bucket, @key, =>
+				@PersistorManager.directorySize.calledWith(@bucket, @key).should.equal true
 				done()

services/filestore/test/unit/coffee/S3PersistorManagerTests.coffee

@@ -259,5 +259,13 @@ describe "S3PersistorManagerTests", ->
 
 	describe "directorySize", ->
 
+		beforeEach ->
+			@S3PersistorManager = SandboxedModule.require modulePath, requires: @requires
+
 		it "should sum directory files size", (done) ->
+			data =
+				Contents: [ {Size: 1024}, {Size: 2048} ]
+			@stubbedKnoxClient.list.callsArgWith(1, null, data)
+			@S3PersistorManager.directorySize @bucketName, @key, (err, totalSize)=>
+				totalSize.should.equal 3072
 				done()