private async Task ViewingAllContexts()
{
var contextQuery = new ViewContexts();
var response = await _mediator.Send(contextQuery);
response.Should().NotBeNull();
_contexts = response.Result;
_context = _contexts.SingleOrDefault(c => c.Id == _contextId);
}
public async Task <IEnumerable <Context> > Handle(ViewContexts command)
{
return(await _repo.GetAll());
}