public async Task Handle_GivenNullRequest_ShouldThrowArgumentNullException()
        {
            // Arrange
            var sut = new ModifyTournamentFormatQueryHandler(this.deletableEntityRepository, this.mapper);

            // Act & Assert
            await Should.ThrowAsync <ArgumentException>(sut.Handle(null, It.IsAny <CancellationToken>()));
        }
        public async Task Handle_GivenInvalidRequest_ShouldThrowNotFoundException()
        {
            // Arrange
            var query = new ModifyTournamentFormatQuery {
                Id = 21413
            };
            var sut = new ModifyTournamentFormatQueryHandler(this.deletableEntityRepository, this.mapper);

            // Act & Assert
            await Should.ThrowAsync <NotFoundException>(sut.Handle(query, It.IsAny <CancellationToken>()));
        }
        public async Task Handle_GivenValidRequest_ShouldReturnValidCommand()
        {
            // Arrange
            var query = new ModifyTournamentFormatQuery {
                Id = 2
            };
            var sut = new ModifyTournamentFormatQueryHandler(this.deletableEntityRepository, this.mapper);

            // Act
            var command = await sut.Handle(query, It.IsAny <CancellationToken>());

            // Assert
            command.ShouldNotBeNull();
            command.Name.ShouldNotBeNullOrWhiteSpace();
            command.GameName.ShouldNotBeNullOrWhiteSpace();
            command.Description.ShouldNotBeNullOrWhiteSpace();
            command.Id.ShouldBe(2);
        }