public async Task ErrorWrapping_Middleware_Should_Return_Error()
{
var exceptionHandler = new ErrorWrappingMiddleware((innerHttpContext) =>
{
throw new Exception("Test exception");
}, new NullLogger <ErrorWrappingMiddleware>());
var context = new DefaultHttpContext();
context.Response.Body = new MemoryStream(); // <== Replace the NullStream
await exceptionHandler.Invoke(context);
context.Response.Body.Seek(0, SeekOrigin.Begin);
var reader = new StreamReader(context.Response.Body);
var text = reader.ReadToEnd();
Assert.False(string.IsNullOrEmpty(text));
}
public async Task GetTableAsync_AccessMethodThrowsError_LogEventOccursAndErrorStatusCodeReturnedNoExceptionThrown()
{
// Arrange
var exceptionToThrow = new Exception("exception");
var apiQueryModel = new ApiQueryModel();
_dbViewAccess.Setup(x => x.GetTableAsync(apiQueryModel))
.ThrowsAsync(exceptionToThrow);
Db2DbViewController controller = new Db2DbViewController(_dbViewAccess.Object);
// Set up our Error Handling middleware as a wrapper (the same way it will wrap all incoming Requests)
var middleware = new ErrorWrappingMiddleware(async(innerHttpContext) =>
{
var result = await controller.GetTableAsync(apiQueryModel);
}, _logger.Object);
var context = new DefaultHttpContext();
context.Response.Body = new MemoryStream();
//Act
await middleware.Invoke(context);
context.Response.Body.Seek(0, SeekOrigin.Begin);
var reader = new StreamReader(context.Response.Body);
var streamText = reader.ReadToEnd();
var objResponse = JsonConvert.DeserializeObject <ApiResponse>(streamText);
//Assert
_logger.Verify(x =>
x.LogError(exceptionToThrow, It.IsAny <string>()), Times.Once);
objResponse
.Should()
.BeEquivalentTo(new ApiResponse(HttpStatusCode.InternalServerError, "exception"));
context.Response.StatusCode
.Should()
.Be((int)HttpStatusCode.InternalServerError);
}