public async Task PostNewFieldReturnsBadRequestAndCorrectContentType()
{
// Given
CreateFieldViewModel model = ViewModelFactory.CreateInvalidCreationModel();
// When
HttpResponseMessage response = await Client.PostAsJsonAsync(EndPointFactory.CreateEndpoint(), model);
// Then
response.StatusCode.Should().Be(HttpStatusCode.BadRequest);
response.Content.Headers.ContentType.ToString().Should().Be("application/problem+json; charset=utf-8");
}