public void GetIntersection_ReturnsEmptyString_WhenCharacterClassContainsFfAndIsIntersectedWithNull() { var charClassFf = new CharacterClassExpression(_alphabet, _randomGenerator, _maxInverseLength); charClassFf.AddCharacters(new List <string> { "F", "f" }); var result1 = charClassFf.GetIntersection(null).ToStringBuilder().GenerateString(); Assert.AreEqual(string.Empty, result1); }
public void GetIntersection_ReturnsEmptyString_WhenIntersectedCharacterClassesContainDifferentCharacters() { var charClassFr = new CharacterClassExpression(_alphabet, _randomGenerator, _maxInverseLength); charClassFr.AddCharacters(new List <string> { "F", "r" }); var charClassJa = new CharacterClassExpression(_alphabet, _randomGenerator, _maxInverseLength); charClassJa.AddCharacters(new List <string> { "J", "a" }); var result = charClassJa.GetIntersection(charClassFr).ToStringBuilder().GenerateString(); Assert.AreEqual(string.Empty, result); }
public void GetIntersection_ReturnsF_WhenCharacterClassContainsFfAndIsIntersectedWithF() { var charClassFf = new CharacterClassExpression(_alphabet, _randomGenerator, _maxInverseLength); charClassFf.AddCharacters(new List <string> { "F", "f" }); var charClassF = new CharacterClassExpression(_alphabet, _randomGenerator, _maxInverseLength); charClassF.AddCharacters(new List <string> { "F" }); var result1 = charClassFf.GetIntersection(charClassF).ToStringBuilder().GenerateString(); var result2 = charClassF.GetIntersection(charClassFf).ToStringBuilder().GenerateString(); Assert.AreEqual("F", result1, "charClassFf.GetIntersection(charClassF)"); Assert.AreEqual("F", result2, "charClassF.GetIntersection(charClassFf)"); }