public void Create_TagNameAlreadyExists_ThrowsTagNameAlreadyExistsException()
{
// Arrange
string tagName = "tag_name";
Tag tag = new Tag { TagId = 1, Name = tagName };
// Arrange - mock tagRepository
Mock<ITagRepository> tagRepositoryMock = new Mock<ITagRepository>();
tagRepositoryMock.Setup(r => r.GetByName(tagName))
.Returns(tag);
// Arrange - mock unitOfWork
Mock<IUnitOfWork> unitOfWorkMock = new Mock<IUnitOfWork>();
unitOfWorkMock.SetupGet(u => u.TagRepository)
.Returns(tagRepositoryMock.Object);
// Arrange - create target
ITagService target = new TagService(unitOfWorkMock.Object, this._tagValidationMock.Object);
// Act and Assert
Assert.Throws<TagNameAlreadyExistsException>(() => target.Create(tagName));
tagRepositoryMock.Verify(r => r.GetByName(tagName), Times.Once);
tagRepositoryMock.Verify(r => r.Insert(It.Is<Tag>(t => t.Name == tagName)), Times.Never);
unitOfWorkMock.Verify(r => r.Save(), Times.Never);
}
public Tag Create(string tagName)
{
Guard.NotNullOrEmpty(tagName, "tagName");
if (!this._tagValidation.IsValidName(tagName))
{
throw new InvalidTagNameFormatException(String.Format("Tag's name '{0}' has invalid format.", tagName));
}
Tag tag = this._unitOfWork.TagRepository.GetByName(tagName);
if (tag != null)
{
throw new TagNameAlreadyExistsException(String.Format("Tag with name '{0}' already exists.", tagName));
}
tag = new Tag { Name = tagName };
this._unitOfWork.TagRepository.Insert(tag);
this._unitOfWork.Save();
return tag;
}
public void GetByName_TagNameIsValid_ReturnsTag()
{
// Arrange
Tag testTag = new Tag { TagId = 1, Name = "tag_name" };
// Arrange - mock tagRepository
Mock<ITagRepository> tagRepositoryMock = new Mock<ITagRepository>();
tagRepositoryMock.Setup(r => r.GetByName(testTag.Name))
.Returns(testTag);
// Arrange - mock unitOfWork
Mock<IUnitOfWork> unitOfWorkMock = new Mock<IUnitOfWork>();
unitOfWorkMock.SetupGet(u => u.TagRepository)
.Returns(tagRepositoryMock.Object);
// Arrange - create target
ITagService target = new TagService(unitOfWorkMock.Object, this._tagValidationMock.Object);
// Act
Tag tag = target.GetByName(testTag.Name);
// Assert
Assert.AreSame(testTag, tag);
}
public void Edit_AllCredentialsAreValid_EditsTag()
{
// Arrange
Tag tag = new Tag { TagId = 1 };
string newTagName = "new_tag_name";
// Arrange - mock tagRepository
Mock<ITagRepository> tagRepositoryMock = new Mock<ITagRepository>();
tagRepositoryMock.Setup(r => r.GetById(tag.TagId))
.Returns(tag);
tagRepositoryMock.Setup(r => r.GetByName(newTagName))
.Returns((Tag)null);
Tag editedTag = null;
tagRepositoryMock.Setup(r => r.Update(It.Is<Tag>(t => t.TagId == tag.TagId)))
.Callback((Tag t) => editedTag = t);
// Arrange - mock unitOfWork
Mock<IUnitOfWork> unitOfWorkMock = new Mock<IUnitOfWork>();
unitOfWorkMock.SetupGet(u => u.TagRepository)
.Returns(tagRepositoryMock.Object);
// Arrange - create target
ITagService target = new TagService(unitOfWorkMock.Object, this._tagValidationMock.Object);
// Act
target.Edit(tag.TagId, newTagName);
// Assert
Assert.IsNotNull(editedTag);
Assert.AreEqual(newTagName, editedTag.Name);
tagRepositoryMock.Verify(r => r.GetById(tag.TagId), Times.Once);
tagRepositoryMock.Verify(r => r.GetByName(newTagName), Times.Once);
tagRepositoryMock.Verify(r => r.Update(It.Is<Tag>(t => t.TagId == tag.TagId)), Times.Once);
unitOfWorkMock.Verify(r => r.Save(), Times.Once);
}
public void Delete_TagIdIsValid_DeletesTag()
{
// Arrange
Tag tag = new Tag { TagId = 1 };
// Arrange - mock tagRepository
Mock<ITagRepository> tagRepositoryMock = new Mock<ITagRepository>();
tagRepositoryMock.Setup(r => r.GetById(tag.TagId))
.Returns(tag);
// Arrange - mock unitOfWork
Mock<IUnitOfWork> unitOfWorkMock = new Mock<IUnitOfWork>();
unitOfWorkMock.SetupGet(u => u.TagRepository)
.Returns(tagRepositoryMock.Object);
ITagService target = new TagService(unitOfWorkMock.Object, this._tagValidationMock.Object);
// Act
target.Delete(tag.TagId);
// Assert
tagRepositoryMock.Verify(r => r.GetById(tag.TagId), Times.Once);
tagRepositoryMock.Verify(r => r.Delete(It.Is<Tag>(t => t.TagId == tag.TagId)), Times.Once);
unitOfWorkMock.Verify(r => r.Save(), Times.Once);
}