Unit Testing Your API Controllers

🪛 Unit Testing Your API Controllers

Install xUnit and Moq:

dotnet add package xunit
dotnet add package Moq

Example test:

[Fact]
public void GetAll_ReturnsAllProducts()
{
    var mockRepo = new Mock<IProductRepository>();
    mockRepo.Setup(repo => repo.GetAll()).Returns(new List<Product> {
        new() { Id = 1, Name = "Test", Price = 9.99M }
    });

    var controller = new ProductsController(mockRepo.Object);
    var result = controller.GetAll();

    var okResult = Assert.IsType<OkObjectResult>(result.Result);
    var products = Assert.IsType<List<Product>>(okResult.Value);
    Assert.Single(products);
}