public async Task TestGetByIdAsync_CheckNullReferenceException()
{
// Arrange
var mock = new Mock <ITodoItemAsyncRepository>();
int id = 1;
mock.Setup(repo => repo.GetByIdAsync(id)).Returns(async() => { return(null); });
var service = new TodoItemService(mock.Object);
// Act & Assert
await Assert.ThrowsAsync <NullReferenceException>(async() => await service.GetByIdAsync(id));
}
public async Task TestGetByIdAsync_CheckTodoItem()
{
// Arrange
var mock = new Mock <ITodoItemAsyncRepository>();
int id = 1;
TodoItem item = new TodoItem
{
Id = 1,
Text = "",
Completed = true
};
mock.Setup(repo => repo.GetByIdAsync(id)).Returns(async() => { return(item); });
var service = new TodoItemService(mock.Object);
// Act
var result = await service.GetByIdAsync(id);
// Assert
Assert.Equal(item.Id, result.Id);
}