public async Task CreateComment_Throws_When_NoUserFound()
{
//Arrange
var options = Utils.GetOptions(nameof(CreateComment_Throws_When_NoUserFound));
var cocktail = new Cocktail {
Id = Guid.NewGuid(), Name = "Manhattan"
};
var userId = Guid.NewGuid();
var cocktailCommentDTO = new CocktailCommentsDTO {
CocktailId = cocktail.Id, UserId = userId
};
using (var arrangeContext = new CMContext(options))
{
await arrangeContext.Cocktails.AddRangeAsync(cocktail);
await arrangeContext.SaveChangesAsync();
}
//Act, Assert
using (var assertContext = new CMContext(options))
{
var sut = new CocktailCommentServices(assertContext);
await Assert.ThrowsExceptionAsync <ArgumentNullException>(() => sut.CreateComment(cocktailCommentDTO));
}
}
/// <summary>
/// Creates a new instance of type CocktailComment
/// </summary>
/// <param name="comment">The comment that should be created</param>
/// <returns>Created comment for the cocktail as data transfer object</returns>
public async Task <CocktailCommentsDTO> CreateComment(CocktailCommentsDTO comment)
{
var user = await this.context.Users.FirstOrDefaultAsync(u => u.Id == comment.UserId);
if (user == null)
{
throw new ArgumentNullException(Exceptions.NullEntityId);
}
var cocktail = await this.context.Cocktails.FirstOrDefaultAsync(c => c.Id == comment.CocktailId);
if (String.IsNullOrWhiteSpace(comment.Comments))
{
throw new ArgumentNullException(Exceptions.CommentRequired);
}
var newCocktailComment = comment.GetEntity();
this.context.Users.Update(user);
this.context.Cocktails.Update(cocktail);
await this.context.CocktailComments.AddAsync(newCocktailComment);
await this.context.SaveChangesAsync();
return(newCocktailComment.GetDTO());
}
public static CocktailCommentViewModel GetViewModel(this CocktailCommentsDTO item)
{
if (item == null)
{
throw new ArgumentNullException();
}
return(new CocktailCommentViewModel
{
CocktailId = item.CocktailId,
UserId = item.UserId,
Comment = item.Comments,
Name = item.User.UserName
});
}
public static CocktailComment GetEntity(this CocktailCommentsDTO item)
{
if (item == null)
{
throw new ArgumentNullException();
}
return(new CocktailComment
{
Comments = item.Comments,
User = item.User,
UserId = item.UserId,
Cocktail = item.Cocktail,
CocktailId = item.CocktailId,
});
}
public async Task CreateComment_Creates_Correct()
{
//Arrange
var options = Utils.GetOptions(nameof(CreateComment_Creates_Correct));
var user = new User {
Id = Guid.NewGuid(), UserName = "******"
};
var cocktail = new Cocktail {
Id = Guid.NewGuid(), Name = "Manhattan"
};
var cocktailCommentDTO = new CocktailCommentsDTO {
CocktailId = cocktail.Id, UserId = user.Id, Comments = "Great"
};
using (var arrangeContext = new CMContext(options))
{
await arrangeContext.Users.AddRangeAsync(user);
await arrangeContext.Cocktails.AddRangeAsync(cocktail);
await arrangeContext.SaveChangesAsync();
}
//Act, Assert
using (var assertContext = new CMContext(options))
{
var sut = new CocktailCommentServices(assertContext);
var result = await sut.CreateComment(cocktailCommentDTO);
Assert.AreEqual(cocktail.Id, result.CocktailId);
Assert.AreEqual(user.Id, result.UserId);
Assert.AreEqual(1, assertContext.CocktailComments.Count());
Assert.IsInstanceOfType(result, typeof(CocktailCommentsDTO));
}
}