public async Task GetValue_NoParameters_ShouldReturnValue()
        {
            // Arrange
            var database      = DatabaseFactory.CreateContext();
            var mapper        = MapperFactory.Create();
            var simpleService = new SimpleService(database, mapper);

            database.TestModels.Add(new TestModel {
                Id = 1, Name = "value"
            });
            database.SaveChanges();

            // Act
            var result = await simpleService.GetValue();

            // Assert
            Assert.Equal("value", result.Name);
        }