public void ShouldReturnCorrectIndexWhenParameterStringIsLongerThanInstanceString()
{
const string First = "testing string";
const string Second = "testing string and more";
var firstDifferenceIndex = First.GetFirstDifferenceIndexWith(Second);
Assert.AreEqual(First.Length, firstDifferenceIndex);
}
public void ShouldReturnMinusOneWhenStringsAreDifferentAndIgnoresCase()
{
const string First = "testing string";
const string Second = "teStInG strING";
var firstDifferenceIndex = First.GetFirstDifferenceIndexWith(Second, true);
Assert.AreEqual(-1, firstDifferenceIndex);
}
public void ShouldReturnMinusOneWhenStringsAreEqual()
{
const string First = "testing string";
const string Second = "testing string";
var firstDifferenceIndex = First.GetFirstDifferenceIndexWith(Second);
Assert.AreEqual(-1, firstDifferenceIndex);
}
public void ShouldReturnCorrectIndexWhenStringsAreDifferent()
{
const string First = "testing string";
const string Second = "ten strings";
var firstDifferenceIndex = First.GetFirstDifferenceIndexWith(Second);
Assert.AreEqual(2, firstDifferenceIndex);
}
public void ShouldReturnZeroWhenStringsHaveDifferentFirstLetter()
{
const string First = "string";
const string Second = "test";
var firstDifferenceIndex = First.GetFirstDifferenceIndexWith(Second);
Assert.AreEqual(0, firstDifferenceIndex);
}
public void ShouldReturnZeroWhenInstanceStringIsNull()
{
const string First = null;
const string Second = "test";
var firstDifferenceIndex = First.GetFirstDifferenceIndexWith(Second);
Assert.AreEqual(0, firstDifferenceIndex);
}
public void ShouldReturnCorrectIndexWhenStringsAreDifferentAndIgnoresCase()
{
const string First = "Testing String";
const string Second = "teStihg string";
var firstDifferenceIndex = First.GetFirstDifferenceIndexWith(Second, true);
Assert.AreEqual(5, firstDifferenceIndex);
}
public void ShouldReturnMinusOneWhenBothStringsAreNullAndIgnoresCase()
{
const string First = null;
const string Second = null;
var firstDifferenceIndex = First.GetFirstDifferenceIndexWith(Second, true);
Assert.AreEqual(-1, firstDifferenceIndex);
}