namespace pgLabII.PgUtils.Tests.ConnectionStrings.Util;

public class UnitTestTokenizerTests
{
    private readonly UnitTestTokenizer _sut = new();

    [Fact]
    public void Eof_True()
    {
        Assert.True(_sut.Eof);
    }

    [Fact]
    public void Eof_False()
    {
        _sut.AddString("a");
        Assert.False(_sut.Eof);
    }

    [Fact]
    public void GetKeyword_Success()
    {
        _sut.AddString("a");
        Assert.Equal("a", _sut.GetKeyword());
    }

    [Fact]
    public void GetKeyword_Unexpected_Throws()
    {
        _sut.AddEquals();
        Assert.Throws<Exception>(() => _sut.GetKeyword());
    }

    [Fact]
    public void GetKeyword_SimulatesException()
    {
        _sut.AddException(new ArgumentNullException());
        Assert.Throws<ArgumentNullException>(() => _sut.GetKeyword());
    }

    [Fact]
    public void GetValue_Success()
    {
        _sut.AddString("a");
        Assert.Equal("a", _sut.GetValue());
    }

    [Fact]
    public void GetValue_Unexpected_Throws()
    {
        _sut.AddEquals();
        Assert.Throws<Exception>(() => _sut.GetValue());
    }

    [Fact]
    public void GetValue_SimulatesException()
    {
        _sut.AddException(new ArgumentNullException());
        Assert.Throws<ArgumentNullException>(() => _sut.GetValue());
    }

    [Fact]
    public void ConsumeEquals_Success()
    {
        _sut.AddEquals();
        _sut.ConsumeEquals();
    }

    [Fact]
    public void ConsumeEquals_Unexpected_Throws1()
    {
        Assert.Throws<Exception>(() => _sut.ConsumeEquals());
    }

    [Fact]
    public void ConsumeEquals_Unexpected_Throws2()
    {
        _sut.AddString("t");
        Assert.Throws<Exception>(() => _sut.ConsumeEquals());
    }
}