public void Throw_NullTweetException_When_TweetIsNotFound()
{
// Arrange
this.tweetRepositoryStub
.Setup(x => x.All)
.Returns(
new List<Tweet>()
{
}.AsQueryable());
var userDtoStub = new UserDTO();
var tweetService = new global::RTWTR.Service.Data.TweetService(
this.saverStub.Object,
this.mapperStub.Object,
this.tweetRepositoryStub.Object,
this.userTweetsStub.Object
);
Assert.ThrowsException<NullTweetException>(() =>
{
tweetService.AddTweetToFavourites("tweetId", userDtoStub);
});
this.tweetRepositoryStub.Verify(
x => x.All,
Times.Once
);
}
public void Throw_ArgumentException_When_TweetAlreadyFavourite()
{
// Arrange
this.userTweetsStub
.Setup(x => x.AllAndDeleted)
.Returns(
new List<UserTweet>()
{
new UserTweet { TweetId = "tweetId", UserId = "userId", IsDeleted = false }
}.AsQueryable()
)
.Verifiable();
this.userTweetsStub
.Setup(x => x.Update(It.IsAny<UserTweet>()))
.Verifiable();
this.tweetRepositoryStub
.Setup(x => x.All)
.Returns(
new List<Tweet>()
{
new Tweet { Id = "tweetId", TwitterId = "tweetId", IsDeleted = false }
}.AsQueryable());
this.tweetRepositoryStub
.Setup(x => x.AllAndDeleted)
.Returns(
new List<Tweet>()
{
new Tweet { Id = "tweetId", TwitterId = "tweetId" }
}.AsQueryable());
this.mapperStub
.Setup(x => x.MapTo<User>(It.IsAny<UserDTO>()))
.Returns(new User { Id = "userId" });
this.saverStub
.Setup(x => x.SaveChanges())
.Returns(1);
var userDtoStub = new UserDTO();
var tweetService = new global::RTWTR.Service.Data.TweetService(
this.saverStub.Object,
this.mapperStub.Object,
this.tweetRepositoryStub.Object,
this.userTweetsStub.Object
);
Assert.ThrowsException<ArgumentException>(() => {
tweetService.AddTweetToFavourites("tweetId", userDtoStub);
});
}
public void Throw_NullUserException_When_UserDtoIsNull()
{
// Arrange
var tweetService = new global::RTWTR.Service.Data.TweetService(
this.saverStub.Object,
this.mapperStub.Object,
this.tweetRepositoryStub.Object,
this.userTweetsStub.Object
);
// Act & Assert
Assert.ThrowsException<NullUserException>(() =>
tweetService.AddTweetToFavourites("tweetId", null)
);
}
public void Return_One_When_TweetSuccessfullyAdded()
{
// Arrange
this.userTweetsStub
.Setup(x => x.Add(It.IsAny<UserTweet>()))
.Verifiable();
this.tweetRepositoryStub
.Setup(x => x.All)
.Returns(
new List<Tweet>()
{
new Tweet { TwitterId = "tweetId" }
}.AsQueryable());
this.mapperStub
.Setup(x => x.MapTo<User>(It.IsAny<UserDTO>()))
.Returns(new User { Id = "userId" });
this.saverStub
.Setup(x => x.SaveChanges())
.Returns(1);
var userDtoStub = new UserDTO();
var tweetService = new global::RTWTR.Service.Data.TweetService(
this.saverStub.Object,
this.mapperStub.Object,
this.tweetRepositoryStub.Object,
this.userTweetsStub.Object
);
var actual = tweetService.AddTweetToFavourites(
"tweetId",
userDtoStub
);
Assert.AreEqual(
1,
actual
);
this.userTweetsStub.Verify(
x => x.Add(It.IsAny<UserTweet>()),
Times.Once
);
}
public void Throw_InvalidTweetIdException_When_TweetIdIsWhitespace()
{
// Arrange
var userDtoStub = new UserDTO();
var tweetService = new global::RTWTR.Service.Data.TweetService(
this.saverStub.Object,
this.mapperStub.Object,
this.tweetRepositoryStub.Object,
this.userTweetsStub.Object
);
// Act & Assert
Assert.ThrowsException<InvalidTweetIdException>(() =>
tweetService.AddTweetToFavourites(" ", userDtoStub)
);
}