public void GetByName_TagNameIsNull_ThrowsArgumentNullException()
{
// Arrange
ITagService target = new TagService(new Mock<IUnitOfWork>().Object, this._tagValidationMock.Object);
// Act and Assert
Assert.Throws<ArgumentNullException>(() => target.GetByName(null));
}
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 GetByName_NonexistentTagName_ReturnsNull()
{
// Arrange
string tagName = "nonexistent_tag_name";
// Arrange - mock tagRepository
Mock<ITagRepository> tagRepositoryMock = new Mock<ITagRepository>();
tagRepositoryMock.Setup(r => r.GetByName(tagName))
.Returns((Tag)null);
// 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(tagName);
// Assert
Assert.IsNull(tag);
}