public async Task FindByIdAsync_MakesCorrectCallsAndReturnsCorrectObject()
{
// Arrange
var expectedPrimaryKeyId = 1;
var expectedTodoDTO = new TodoDTO()
{
Id = expectedPrimaryKeyId, Name = "Test Todo", IsComplete = true
};
var todo = new Todo();
var mockedRepository = new Mock <ITodosRepository>();
var mockedMapper = new Mock <IMapper>();
mockedRepository.Setup(r => r.FindByIdAsync(expectedPrimaryKeyId)).ReturnsAsync(todo);
mockedMapper.Setup(m => m.Map <Todo, TodoDTO>(todo)).Returns(expectedTodoDTO);
var service = new TodosService(mockedMapper.Object, mockedRepository.Object);
// Action
var actualTodoDTO = await service.FindByIdAsync(expectedPrimaryKeyId);
// Assert
Assert.NotNull(actualTodoDTO);
Assert.Equal(expectedTodoDTO, actualTodoDTO);
mockedRepository.Verify(r => r.FindByIdAsync(expectedPrimaryKeyId), Times.Once());
mockedMapper.Verify(m => m.Map <Todo, TodoDTO>(todo), Times.Once());
}