public void NullNeedle()
{
// Arrange
var haystackByteArray = Encoding.ASCII.GetBytes("This haystack does not contain a n-e-e-d-l-e");
using (var memStream = new MemoryStream(haystackByteArray))
using (var searchableStringString = new SearchableStringStream(memStream))
{
// Act
var foundPosition = searchableStringString.IndexOf(null);
}
}
public void SingleOccuranceAtBeginning()
{
// Arrange
var haystackByteArray = Encoding.ASCII.GetBytes("needle in a haystack");
var needle = "needle";
using (var memStream = new MemoryStream(haystackByteArray))
using (var searchableStringStream = new SearchableStringStream(memStream))
{
// Act
var foundPosition = searchableStringStream.IndexOf(needle);
// Assert
Assert.AreEqual(0, foundPosition);
}
}
public void NotInStream()
{
// Arrange
var haystackByteArray = Encoding.ASCII.GetBytes("This haystack does not contain a n-e-e-d-l-e");
var needle = "needle";
using (var memStream = new MemoryStream(haystackByteArray))
using (var searchableStringStream = new SearchableStringStream(memStream))
{
// Act
var foundPosition = searchableStringStream.IndexOf(needle);
// Assert
Assert.AreEqual(-1, foundPosition);
}
}
public void EmptyStream()
{
// Arrange
var emptyByteArray = new byte[0];
var needle = "needle";
using (var memStream = new MemoryStream(emptyByteArray))
using (var searchableStringStream = new SearchableStringStream(memStream))
{
// Act
var foundPosition = searchableStringStream.IndexOf(needle);
// Assert
Assert.AreEqual(-1, foundPosition);
}
}
public void MultipleOccurance_Unicode()
{
// Arrange
var haystackByteArray = Encoding.Unicode.GetBytes("This hay stack has a needle here and another needle here and another needle here");
var needle = "needle";
using (var memStream = new MemoryStream(haystackByteArray))
using (var searchableStringStream = new SearchableStringStream(memStream, Encoding.Unicode))
{
// Act
var foundPosition = searchableStringStream.IndexOf(needle);
// Assert
Assert.AreEqual(42, foundPosition);
}
}