public void Test_EachTriadCombo()
{
string s = "123";
Assert.AreEqual((uint)12, NumberReducer.ReduceStringDigits(s, 1));
Assert.AreEqual((uint)1, NumberReducer.ReduceStringDigits(s, 2));
s = "132";
Assert.AreEqual((uint)12, NumberReducer.ReduceStringDigits(s, 1));
Assert.AreEqual((uint)1, NumberReducer.ReduceStringDigits(s, 2));
s = "213";
Assert.AreEqual((uint)13, NumberReducer.ReduceStringDigits(s, 1));
Assert.AreEqual((uint)1, NumberReducer.ReduceStringDigits(s, 2));
s = "231";
Assert.AreEqual((uint)21, NumberReducer.ReduceStringDigits(s, 1));
Assert.AreEqual((uint)1, NumberReducer.ReduceStringDigits(s, 2));
s = "321";
Assert.AreEqual((uint)21, NumberReducer.ReduceStringDigits(s, 1));
Assert.AreEqual((uint)1, NumberReducer.ReduceStringDigits(s, 2));
s = "312";
Assert.AreEqual((uint)12, NumberReducer.ReduceStringDigits(s, 1));
Assert.AreEqual((uint)1, NumberReducer.ReduceStringDigits(s, 2));
}
public void Test_EachDigitDecreasing()
{
string s = "5432";
Assert.AreEqual((uint)432, NumberReducer.ReduceStringDigits(s, 1));
Assert.AreEqual((uint)32, NumberReducer.ReduceStringDigits(s, 2));
Assert.AreEqual((uint)2, NumberReducer.ReduceStringDigits(s, 3));
}
public void Test_EachDigitIncreasing()
{
string s = "2345";
Assert.AreEqual((uint)234, NumberReducer.ReduceStringDigits(s, 1));
Assert.AreEqual((uint)23, NumberReducer.ReduceStringDigits(s, 2));
Assert.AreEqual((uint)2, NumberReducer.ReduceStringDigits(s, 3));
}
public void Test_SimilarSets()
{
string s = "9898";
Assert.AreEqual((uint)898, NumberReducer.ReduceStringDigits(s, 1));
Assert.AreEqual((uint)88, NumberReducer.ReduceStringDigits(s, 2));
Assert.AreEqual((uint)8, NumberReducer.ReduceStringDigits(s, 3));
s = "1100";
Assert.AreEqual((uint)100, NumberReducer.ReduceStringDigits(s, 1));
Assert.AreEqual((uint)0, NumberReducer.ReduceStringDigits(s, 2));
Assert.AreEqual((uint)0, NumberReducer.ReduceStringDigits(s, 3));
}
public void Test_AllDigitsEqual()
{
string s = "1111";
Assert.AreEqual((uint)111, NumberReducer.ReduceStringDigits(s, 1));
Assert.AreEqual((uint)11, NumberReducer.ReduceStringDigits(s, 2));
Assert.AreEqual((uint)1, NumberReducer.ReduceStringDigits(s, 3));
s = "9999";
Assert.AreEqual((uint)999, NumberReducer.ReduceStringDigits(s, 1));
Assert.AreEqual((uint)99, NumberReducer.ReduceStringDigits(s, 2));
Assert.AreEqual((uint)9, NumberReducer.ReduceStringDigits(s, 3));
}
public void Test_MixedSets()
{
string s = "623819";
Assert.AreEqual((uint)23819, NumberReducer.ReduceStringDigits(s, 1));
Assert.AreEqual((uint)2319, NumberReducer.ReduceStringDigits(s, 2));
Assert.AreEqual((uint)219, NumberReducer.ReduceStringDigits(s, 3));
Assert.AreEqual((uint)19, NumberReducer.ReduceStringDigits(s, 4));
Assert.AreEqual((uint)1, NumberReducer.ReduceStringDigits(s, 5));
s = "869843";
Assert.AreEqual((uint)69843, NumberReducer.ReduceStringDigits(s, 1));
Assert.AreEqual((uint)6843, NumberReducer.ReduceStringDigits(s, 2));
Assert.AreEqual((uint)643, NumberReducer.ReduceStringDigits(s, 3));
Assert.AreEqual((uint)43, NumberReducer.ReduceStringDigits(s, 4));
Assert.AreEqual((uint)3, NumberReducer.ReduceStringDigits(s, 5));
s = "2435";
Assert.AreEqual((uint)235, NumberReducer.ReduceStringDigits(s, 1));
Assert.AreEqual((uint)23, NumberReducer.ReduceStringDigits(s, 2));
}