public void TestFindNextOccurrence4BitDigitSearchEmptyString()
{
Stream s = FourBitDigitBigArrayTests.convertStringTo4BitDigitStream("");
;
Assert.Throws <ArgumentException>(() => SearchString.FindNextOccurrence4BitDigit(s, "1", 0));
}
public void TestFindNextOccurrence4BitDigitLookForEmptyString()
{
const string STR = "123456789991234";
Stream s = FourBitDigitBigArrayTests.convertStringTo4BitDigitStream(STR);
Assert.Throws <ArgumentException>(() => SearchString.FindNextOccurrence4BitDigit(s, "", 0));
}
public void TestFindNextOccurrence4BitDigitLookForLongerThanLeftInToSearch()
{
const string STR = "123456789991234";
Stream s = FourBitDigitBigArrayTests.convertStringTo4BitDigitStream(STR);
Assert.AreEqual(-1, SearchString.FindNextOccurrence4BitDigit(s, "43", STR.Length - 1));
}
public void TestFindNextOccurrence4BitDigitSearchFullString()
{
const string STR = "123456789991234";
Stream s = FourBitDigitBigArrayTests.convertStringTo4BitDigitStream(STR);
Assert.AreEqual(0, SearchString.FindNextOccurrence4BitDigit(s, STR, 0));
}
public void TestFindNextOccurrence4BitDigitSearchLastDigit()
{
const string STR = "123456789991234";
Stream s = FourBitDigitBigArrayTests.convertStringTo4BitDigitStream(STR);
Assert.AreEqual(STR.Length - 1, SearchString.FindNextOccurrence4BitDigit(s, STR[STR.Length - 1].ToString(), STR.Length - 1));
Assert.AreEqual(-1, SearchString.FindNextOccurrence4BitDigit(s, "5", STR.Length - 1));
}
public void TestFindNextOccurrence4BitDigit()
{
const string STR = "123456789991234";
Stream s = FourBitDigitBigArrayTests.convertStringTo4BitDigitStream(STR);
Dictionary <Tuple <string, long>, long> answers = new Dictionary <Tuple <string, long>, long>()
{
{ Tuple.Create("1", 0L), 0 },
{ Tuple.Create("2", 0L), 1 },
{ Tuple.Create("123", 0L), 0 },
{ Tuple.Create("1", 1L), 11 }
};
foreach (KeyValuePair <Tuple <string, long>, long> kvp in answers)
{
string find = kvp.Key.Item1;
long fromIdx = kvp.Key.Item2;
long expected = kvp.Value;
long actual = SearchString.FindNextOccurrence4BitDigit(s, find, fromIdx);
Assert.AreEqual(expected, actual);
}
}