public void SumTest()
{
const String KEY1 = "key1";
const String KEY2 = "key2";
const String KEY3 = "key3";
const String KEY4 = "key4";
IList<String> expected = new List<String>();
expected.Add(KEY1);
expected.Add(KEY2);
expected.Add(KEY3);
expected.Add(KEY4);
StretchrRequest<String> target = new StretchrRequest<String>(new StretchrClient(), response => { }, (request, statusCode, exception) => { });
target.Sum(KEY1, KEY2, KEY3, KEY4);
IList<String> actual = target.AggregationFunctionParameterListSum;
Assert.IsNotNull(actual);
Assert.AreEqual(expected.Count, actual.Count);
Assert.AreEqual(expected[0], actual[0]);
Assert.AreEqual(expected[1], actual[1]);
Assert.AreEqual(expected[2], actual[2]);
Assert.AreEqual(expected[3], actual[3]);
}