public void CorrectlyAddLikeToImage_WhenPassedParamsAreValid()
{
// Arrange
var contextMock = new Mock <ITravelGuideContext>();
var imageFactoryMock = new Mock <IGalleryImageFactory>();
var commentFactoryMock = new Mock <IGalleryCommentFactory>();
var likeFactoryMock = new Mock <IGalleryLikeFactory>();
var image = new GalleryImage();
var like = new GalleryLike();
var user = new User();
like.UserId = Guid.NewGuid();
user.Id = Guid.NewGuid().ToString();
contextMock.Setup(x => x.Users.Find(It.IsAny <string>())).Returns(user);
likeFactoryMock.Setup(x => x.CreateGalleryLike(It.IsAny <Guid>(), It.IsAny <Guid>())).Returns(like);
contextMock.Setup(x => x.GalleryImages.Find(It.IsAny <Guid>())).Returns(image);
var id = "some id";
var imageId = Guid.NewGuid();
var service = new GalleryImageService(contextMock.Object, imageFactoryMock.Object, likeFactoryMock.Object, commentFactoryMock.Object);
// Act
service.ToggleLike(id, imageId);
// Assert
Assert.AreSame(like, image.Likes.First());
}
public void CorrectlyRemoveLikeFromImage_WhenPassedParamsAreValid()
{
// Arrange
var contextMock = new Mock <ITravelGuideContext>();
var imageFactoryMock = new Mock <IGalleryImageFactory>();
var commentFactoryMock = new Mock <IGalleryCommentFactory>();
var likeFactoryMock = new Mock <IGalleryLikeFactory>();
var image = new GalleryImage();
var like = new GalleryLike();
var user = new User();
image.Likes.Add(like);
var initialCount = image.Likes.Count();
var id = "id";
var imageId = Guid.NewGuid();
like.UserId = Guid.Parse(user.Id);
contextMock.Setup(x => x.Users.Find(It.IsAny <string>())).Returns(user);
likeFactoryMock.Setup(x => x.CreateGalleryLike(It.IsAny <Guid>(), It.IsAny <Guid>())).Returns(like);
contextMock.Setup(x => x.GalleryImages.Find(It.IsAny <Guid>())).Returns(image);
contextMock.Setup(x => x.GalleryLikes.Remove(like));
var service = new GalleryImageService(contextMock.Object, imageFactoryMock.Object, likeFactoryMock.Object, commentFactoryMock.Object);
// Act
service.ToggleLike(id, imageId);
// Assert
contextMock.Verify(x => x.GalleryLikes.Remove(like), Times.Once);
}
public void ToggleLike(string id, Guid imageId)
{
if (string.IsNullOrEmpty(id))
{
throw new ArgumentNullException();
}
var userId = Guid.Parse(this.context.Users.Find(id).Id);
var like = this.likeFactory.CreateGalleryLike(userId, imageId);
var image = this.context.GalleryImages.Find(imageId);
GalleryLike dbLike = null;
foreach (var item in image.Likes)
{
if (item.UserId == userId)
{
dbLike = item;
break;
}
}
if (dbLike != null)
{
this.context.GalleryLikes.Remove(dbLike);
}
else
{
image.Likes.Add(like);
}
this.context.SaveChanges();
}
