public void TestSingletonFinder()
        {
            var finder = new SingletonFinder(new DummyDatabase());
            var total  = finder.GetTotalPopulation(new[] { "Mexico", "Torreon" });

            Assert.Equal(7000 + 222, total);
        }
        public void TestMethod1()
        {
            var finder = new SingletonFinder(new DummyDatabase());
            var total  = finder.GetTotalPopulation(new[] { "Santiago", "Buenos Aires" });

            Assert.AreEqual(7000 + 222, total);
        }