我正在尝试为我的项目中的控制器操作方法创建简单的web api测试。我已经在我的解决方案中创建并添加了测试项目。并在测试项目中添加Nunit nuget包。
我试图测试的控制器是这样的：
[ApiController]
[Route("[controller]")]
public class HomeController : ControllerBase
{
private readonly IConfiguration _configuration;
private readonly IHostEnvironment _hostEnvironment;
private readonly ILogger<HomeController> _logger;
private BaseDataAccess _datatAccess = new BaseDataAccess()
public HomeController(ILogger<HomeController> logger, IConfiguration configuration, IHostEnvironment hostEnvironment)
{
_logger = logger;
_configuration = configuration;
_hostEnvironment = hostEnvironment;
}
[HttpGet("GetInfo/{code}")]
public IActionResult GetInfo(string code)
{
List<InfoModel> infos = new List<InfoModel>();
int isNumber;
if (String.IsNullOrEmpty(code) || !int.TryParse(code, out isNumber))
{
_logger.LogInformation(String.Format("The code pass as arguments to api is : {0}", code));
return BadRequest("Invalid code");
}
try
{
_logger.LogDebug(1, "The code passed is" + code);
SqlConnection connection = _datatAccess.GetConnection(_configuration, _hostEnvironment);
string sql = string.Format ("SELECT * from table1 where code={0}", code);
DataTable dt = _datatAccess.ExecuteQuery(connection,CommandType.Text, sql);
if (dt != null && dt.Rows.Count > 0)
{
foreach (DataRow dr in dt.Rows)
{
infos.Add(new InfoModel
{
ID = dr["id"].ToString(),
code = dr["code"].ToString()
});
}
}
}
catch (Exception ex)
{
_logger.LogError(4, String.Format("Error Message: " + ex.Message + "n" + ex.StackTrace));
return BadRequest("There is something wrong.Please contact the administration.");
}
return new OkObjectResult(infos);
}
}
现在，当我尝试创建单元测试时，我需要将配置、主机环境和记录器从我的TestHomeController传递到HomeController。我不知道如何实例化这些设置并传递给控制器：
using NUnit.Framework;
using Microsoft.AspNetCore.Mvc;
using MyApi.Models;
using MyApi.Controllers;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
namespace MyApi.Tests
{
[TestFixture]
public class TestHomeController: ControllerBase
{
private readonly IConfiguration _configuration; //How to instantiate this so it is not null
private readonly IHostEnvironment _hostEnvironment ;//How to instantiate this so it is not null
private ILogger<HomeController> _logger;//How to instantiate this so it is not null
[Test]
public void GetInfo_ShouldReturnAllInfo()
{
var controller = new HomeConteoller(_logger, _configuration, _hostEnvironment);
var result = controller.GetInfo("11");
var okObjectResult = (OkObjectResult)result;
//Assert
okObjectResult.StatusCode.Equals(200);
}
}
}
感谢您的帮助和建议。
可能，你有startup.cs，不是吗？如果你要测试一个控制器，那么你需要构建一个应用程序的完整实例。在这里，我举了一个例子，说明如果你有Startup.cs.，你可以如何测试你的代码
public class SUTFactory : WebApplicationFactory<Startup>
{
protected override IHostBuilder CreateHostBuilder()
{
return Program.CreateHostBuilder(null);
}
}
public class TestControllerTests
{
private SUTFactory factory;
private HttpClient _client;
public TestControllerTests()
{
factory = new SUTFactory();
_client = factory.CreateClient();
}
[Test]
public async Task GetPatientInterviewID_ShouldReturnAllInterviewID()
{
// Arrange
var id = "11";
// Act
var result = await _client.GetAsync($"Home/GetInfo/{id}");
// Assert
Assert.AreEqual(System.Net.HttpStatusCode.OK, result.StatusCode);
}
}
这个例子更接近集成测试，而不是单元测试。如果你想进行单元测试，那么你需要做以下事情
BaseDataAccess _dataAccess这是一个特定的实现，它不能被模拟(与ILogger、IHostEnvironment等相比(
将所有代码从控制器移到一个单独的类中，并测试这个类。