public async Task Should_Filter_Exception(Exception exception, string exceptionMessage, int httpStatusCode)
{
var exceptionContext = GetExceptionContext(exception);
var stringLocalizer = GetMockStringLocalizer <ApiResponseMessage>(ApiResponseMessage.Exception, ApiResponseMessage.Exception);
var apiExceptionFilter = new ApiExceptionFilterAttribute(stringLocalizer.Object);
await apiExceptionFilter.OnExceptionAsync(exceptionContext);
var result = (exceptionContext.Result as JsonResult).Value as ApiResponse <object>;
Assert.Equal(httpStatusCode, result.StatusCode);
Assert.Equal(exceptionMessage, result.ResponseException.ErrorMessage);
}
public async Task OnAsyncExceptionTests()
{
Logger.Init("", "CoreAccessControl.log", "CoreAccessControl", Severity.Information, mock: true);
var actionContext = new ActionContext()
{
HttpContext = new DefaultHttpContext(),
RouteData = new RouteData(),
ActionDescriptor = new ActionDescriptor()
};
// The stacktrace message and source member variables are virtual and so we can stub them here.
var mockException = new Mock <Exception>();
mockException.Setup(e => e.StackTrace)
.Returns("Test stacktrace");
mockException.Setup(e => e.Message)
.Returns("Test message");
mockException.Setup(e => e.Source)
.Returns("Test source");
// the List<FilterMetadata> here doesn't have much relevance in the test but is required
// for instantiation. So we instantiate a new instance of it with no members to ensure
// it does not effect the test.
var exceptionContext = new ExceptionContext(actionContext, new List <IFilterMetadata>())
{
Exception = mockException.Object
};
var filter = new ApiExceptionFilterAttribute();
await filter.OnExceptionAsync(exceptionContext);
// Assumption here that your exception filter modifies status codes.
// Just used as an example of how you can assert in this test.
Assert.Equal(500, (int)exceptionContext.HttpContext.Response.StatusCode);
}