using CanonSharp.Common.Abstractions;
using StringReader = CanonSharp.Common.Reader.StringReader;

namespace CanonSharp.Tests.LexicalAnalyzerTests;

public class ReaderTests
{
    [Fact]
    public void StringReaderTest()
    {
        StringReader reader = new("ab");

        Assert.True(reader.TryPeek(out char c));
        Assert.Equal('a', c);
        Assert.True(reader.TryPeek(out c));
        Assert.Equal('a', c);
        Assert.Equal('a', reader.Read());
        Assert.True(reader.TryPeek(out c));
        Assert.Equal('b', c);
        Assert.True(reader.TryPeek(out c));
        Assert.Equal('b', c);
        Assert.Equal('b', reader.Read());
        Assert.False(reader.TryPeek(out c));
    }
}