public async Task PostCreateInviteAsync_ShouldCreateInvite_ThenReturnInviteResponse()
{
const int groupId = 8;
var createInviteRequest = new CreateInviteRequest();
var createdInvite = new GroupInvite();
var groupInviteResponse = new GroupInviteResponse();
_groupService.CreateInviteAsync(_executionContext, groupId, createInviteRequest)
.Returns(createdInvite);
_mapper.Map <GroupInviteResponse>(createdInvite)
.Returns(groupInviteResponse);
var result = await _controller.PostCreateInviteAsync(_executionContext, groupId, createInviteRequest);
result.Value.Should().BeSameAs(groupInviteResponse);
result.StatusCode.Should().Be(StatusCodes.Status201Created);
}