public void Match()
{
var str = "123";
var dot = new SingleCharacter(UnicodeCategory.DecimalDigitNumber);
var node = dot.Match(str) as ParseNode;
Assert.IsNotNull(node);
Assert.AreEqual(0, node.Children.Count);
Assert.AreEqual(1, node.Length);
Assert.AreEqual(new Position(str), node.Position);
Assert.AreEqual(new Position(str).Advance(), node.NextPosition);
Assert.AreEqual("1", node.Value);
var str2 = "foo";
var err = dot.Match(str2) as ParsingError;
Assert.IsNotNull(err);
Assert.AreEqual(dot, err.Pattern);
Assert.AreEqual(new Position(str2), err.Position);
Assert.IsNull(err.InnerError);
Assert.AreEqual($"Expected {UnicodeCategory.DecimalDigitNumber}, got {UnicodeCategory.LowercaseLetter}", err.Message);
var err2 = dot.Match(string.Empty) as ParsingError;
Assert.IsNotNull(err2);
Assert.AreEqual(dot, err2.Pattern);
Assert.AreEqual(new Position(string.Empty), err2.Position);
Assert.IsNull(err2.InnerError);
Assert.AreEqual("EOF reached", err2.Message);
}
public void New()
{
var x = new SingleCharacter(UnicodeCategory.DecimalDigitNumber);
Assert.AreEqual(UnicodeCategory.DecimalDigitNumber, x.Category);
Assert.IsNull(x.Name);
Assert.IsFalse(x.Memoized);
var y = new SingleCharacter(
UnicodeCategory.DecimalDigitNumber,
"0-9");
Assert.AreEqual("0-9", y.Name);
Assert.IsTrue(y.Memoized);
}
public void Memoize()
{
var dot = new SingleCharacter(UnicodeCategory.DecimalDigitNumber);
var dot2 = dot.Memoize() as SingleCharacter;
Assert.IsNotNull(dot2);
Assert.IsTrue(dot2.Memoized);
Assert.AreEqual("", dot2.Name);
var dot3 = dot2.Memoize();
Assert.AreEqual(dot2, dot3);
var dot4 = dot2.Memoize("Test") as SingleCharacter;
Assert.IsNotNull(dot4);
Assert.IsTrue(dot4.Memoized);
Assert.AreEqual("Test", dot4.Name);
}
public void ShouldReturnTrueIfAllCharactersAreUnique()
{
var input = "abcd";
Assert.True(SingleCharacter.AllCharactersAreUnique(input));
}
public void ShouldReturnFalseIfAllCharactersAreNotUnique()
{
var input = "abcdc";
Assert.False(SingleCharacter.AllCharactersAreUnique(input));
}
public new void ToString()
{
var dot = new SingleCharacter(UnicodeCategory.DecimalDigitNumber);
Assert.AreEqual($"[[{UnicodeCategory.DecimalDigitNumber}]]", dot.ToString());
}
