public void GetLocation__ReturnsCorrectLocation()
{
var reader = new StringCodeReader("stri\nng\r\nanother\r\nstring");
var expectedLines = new[]
{
/*s :*/ "B 00 L 1 C 1",
/*t :*/ "B 01 L 1 C 2",
/*r :*/ "B 02 L 1 C 3",
/*i :*/ "B 03 L 1 C 4",
/*\n:*/ "B 04 L 1 C 5",
/*n :*/ "B 05 L 2 C 1",
/*g :*/ "B 06 L 2 C 2",
/*\r:*/ "B 07 L 2 C 3",
/*\n:*/ "B 08 L 2 C 4",
/*a :*/ "B 09 L 3 C 1",
/*n :*/ "B 10 L 3 C 2",
/*o :*/ "B 11 L 3 C 3",
/*t :*/ "B 12 L 3 C 4",
/*h :*/ "B 13 L 3 C 5",
/*e :*/ "B 14 L 3 C 6",
/*r :*/ "B 15 L 3 C 7",
/*\r:*/ "B 16 L 3 C 8",
/*\n:*/ "B 17 L 3 C 9",
/*s :*/ "B 18 L 4 C 1",
/*t :*/ "B 19 L 4 C 2",
/*r :*/ "B 20 L 4 C 3",
/*i :*/ "B 21 L 4 C 4",
/*n :*/ "B 22 L 4 C 5",
/*g :*/ "B 23 L 4 C 6",
};
var i = 0;
while (reader.Position != reader.Length)
{
SourceLocation l = reader.GetLocation();
reader.Advance(1);
Assert.AreEqual(expectedLines[i++], $"B {l.Byte:00} L {l.Line} C {l.Column}");
}
Assert.ThrowsException <ArgumentOutOfRangeException>(() => reader.Advance(1));
Assert.ThrowsException <ArgumentOutOfRangeException>(() => reader.Advance(-1));
}
public void ExecuteExecutesProperly()
{
var reader = new StringCodeReader("pass");
var tr1 = new Transducer <Char, Int32>();
tr1.InitialState.OnInput(new[] { 'p', 'a', 's', 's' }, 1);
Assert.IsTrue(tr1.TryExecute(reader, out var num));
Assert.AreEqual(1, num);
reader.Reset();
reader.Advance(1);
Assert.IsFalse(tr1.TryExecute(reader, out _));
}
public void FindOffset_Char__ReturnsCorrectValue()
{
var reader = new StringCodeReader("aaa bbb");
Assert.AreEqual(0, reader.FindOffset('a'));
Assert.AreEqual(0, reader.Position);
Assert.AreEqual(4, reader.FindOffset('b'));
Assert.AreEqual(0, reader.Position);
reader.Advance(2);
Assert.AreEqual(0, reader.FindOffset('a'));
Assert.AreEqual(2, reader.Position);
Assert.AreEqual(2, reader.FindOffset('b'));
Assert.AreEqual(2, reader.Position);
Assert.AreEqual(-1, reader.FindOffset('c'));
Assert.AreEqual(2, reader.Position);
}
public void FindOffset_String__ReturnsCorrectValue()
{
var reader = new StringCodeReader("aaa bbb");
Assert.AreEqual(0, reader.FindOffset("aaa"));
Assert.AreEqual(0, reader.Position);
Assert.AreEqual(4, reader.FindOffset("bbb"));
Assert.AreEqual(0, reader.Position);
reader.Advance(1);
Assert.AreEqual(0, reader.FindOffset("aa"));
Assert.AreEqual(1, reader.Position);
Assert.AreEqual(-1, reader.FindOffset("aaa"));
Assert.AreEqual(1, reader.Position);
Assert.AreEqual(3, reader.FindOffset("bbb"));
Assert.AreEqual(1, reader.Position);
Assert.AreEqual(-1, reader.FindOffset("ccc"));
Assert.AreEqual(1, reader.Position);
#nullable disable
public void FindOffset_Char_Int32__ReturnsCorrectValue()
{
var reader = new StringCodeReader("aaa bbb");
Assert.AreEqual(1, reader.FindOffset('a', 1));
Assert.AreEqual(0, reader.Position);
Assert.AreEqual(5, reader.FindOffset('b', 5));
Assert.AreEqual(0, reader.Position);
Assert.AreEqual(-1, reader.FindOffset('b', 8));
Assert.AreEqual(0, reader.Position);
reader.Advance(2);
Assert.AreEqual(-1, reader.FindOffset('a', 1));
Assert.AreEqual(2, reader.Position);
Assert.AreEqual(3, reader.FindOffset('b', 3));
Assert.AreEqual(2, reader.Position);
Assert.AreEqual(-1, reader.FindOffset('c'));
Assert.AreEqual(2, reader.Position);
Assert.AreEqual(-1, reader.FindOffset('b', 6));
Assert.AreEqual(2, reader.Position);
Assert.ThrowsException <ArgumentOutOfRangeException>(() => reader.FindOffset('a', -1),
"The offset must be positivel.");
}
