public void Can_check_used_disk_per_store() { CloudInfrastructure cloud = new CloudInfrastructure(); cloud.CreateStore("myImages"); cloud.UploadDocument("myImages", "picture.jpeg"); // we suppose all documents have the same size which is 0.1gb Assert.AreEqual(0.100, cloud.UsedDiskStore("myImages"), 0.00001); cloud.UploadDocument("myImages", "profile.png"); // a second document was inserted, used disk in "muImages" = 200mb Assert.AreEqual(0.200, cloud.UsedDiskStore("myImages"), 0.00001); }