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我正在努力为包含 User.Identity.Name 功能的操作方法实现单元测试。我遇到的方法失败了，因为他们建议写入的属性会抛出“只读”错误(例如写入 HttpContext 或 Controller User)
我有一个 Action 方法:
[Authorize]
public async Task<ViewResult> EditProject(int projectId)
{
Project project = repository.Projects.FirstOrDefault(p => p.ProjectID == projectId);
if (project != null)
{
//HOW DO I MOCK USER.IDENTITY.NAME FOR THIS PORTION?
var user = await userManager.FindByNameAsync(User.Identity.Name);
bool owned = await checkIfUserOwnsItem(project.UserID, user);
if (owned)
{
return View(project);
}
else
{
TempData["message"] = $"User is not authorized to view this item";
}
}
return View("Index");
}
如果我想对这个 action 方法进行单元测试，我该如何模拟 User.Identity 对象？
[Fact]
public async Task Can_Edit_Project()
{
//Arrange
var user = new AppUser() { UserName = "JohnDoe", Id = "1" };
Mock<IRepository> mockRepo = new Mock<IRepository>();
mockRepo.Setup(m => m.Projects).Returns(new Project[]
{
new Project {ProjectID = 1, Name = "P1", UserID = "1"},
new Project {ProjectID = 2, Name = "P2", UserID = "1"},
new Project {ProjectID = 3, Name = "P3", UserID = "1"},
});
Mock<ITempDataDictionary> tempData = new Mock<ITempDataDictionary>();
Mock<UserManager<AppUser>> userMgr = GetMockUserManager();
//Arrange
ProjectController controller = new ProjectController(mockRepo.Object, userMgr.Object)
{
TempData = tempData.Object,
};
//HOW WOULD I MOCK THE USER.IDENTITY.NAME HERE?
//The example below causes two errors:
// 1) 'Invalid setup on a non-virtual (overridable in VB) member
//mock => mock.HttpContext
//and 2) HttpContext does not contain a definition for IsAuthenticated
var mock = new Mock<ControllerContext>();
mock.SetupGet(p => p.HttpContext.User.Identity.Name).Returns(user.UserName);
mock.SetupGet(p => p.HttpContext.Request.IsAuthenticated).Returns(true);
//Act
var viewResult = await controller.EditProject(2);
Project result = viewResult.ViewData.Model as Project;
//Assert
Assert.Equal(2, result.ProjectID);
}
编辑: 通过添加下面的代码取得一些进展。
var claims = new List<Claim>()
{
new Claim(ClaimTypes.Name, "John Doe"),
new Claim(ClaimTypes.NameIdentifier, "1"),
new Claim("name", "John Doe"),
};
var identity = new ClaimsIdentity(claims, "TestAuthType");
var claimsPrincipal = new ClaimsPrincipal(identity);
var mockPrincipal = new Mock<IPrincipal>();
mockPrincipal.Setup(x => x.Identity).Returns(identity);
mockPrincipal.Setup(x => x.IsInRole(It.IsAny<string>())).Returns(true);
var mockHttpContext = new Mock<HttpContext>();
mockHttpContext.Setup(m => m.User).Returns(claimsPrincipal);
现在 User.Identity.Name 设置正确，但下面的行仍然返回 user = null
var user = await userManager.FindByNameAsync(User.Identity.Name);
如何确保我模拟的 UserManager 可以返回模拟的登录用户？