using pgLabII.PgUtils.ConnectionStrings;

namespace pgLabII.PgUtils.Tests.ConnectionStrings;

public class PqConnectionStringTokenizerTests
{
    [Theory]
    [InlineData("abc", "abc")]
    [InlineData("abc=", "abc")]
    [InlineData(" abc =", "abc")]
    public void GetKeyword_Success(string input, string expected)
    {
        PqConnectionStringTokenizer subject = new(input);

        Assert.Equal(expected, subject.GetKeyword());
    }

    [Theory]
    [InlineData("=")]
    [InlineData("")]
    [InlineData(" ")]
    public void GetKeyword_Throws(string input)
    {
        PqConnectionStringTokenizer subject = new(input);
        Assert.Throws<PqConnectionStringParserException>(() => subject.GetKeyword());
    }

    [Theory]
    [InlineData("", true)]
    [InlineData(" ", true)]
    [InlineData(" \t", true)]
    [InlineData("d", false)]
    [InlineData("=", false)]
    [InlineData(".", false)]
    public void Eof(string input, bool expected)
    {
        PqConnectionStringTokenizer subject = new(input);

        Assert.Equal(expected, subject.Eof);
    }

    [Theory]
    [InlineData("=")]
    [InlineData("=test")]
    [InlineData(" = ")]
    public void ConsumeEquals_Success(string input)
    {
        PqConnectionStringTokenizer subject = new(input);
        subject.ConsumeEquals();
    }

    [Theory]
    [InlineData("")]
    [InlineData("t")]
    [InlineData(" test")]
    [InlineData(" ")]
    public void ConsumeEquals_Throws(string input)
    {
        PqConnectionStringTokenizer subject = new(input);
        Assert.Throws<PqConnectionStringParserException>(() => subject.ConsumeEquals());
    }

    [Theory]
    [InlineData("foo", "foo")]
    [InlineData("foo ", "foo")]
    [InlineData("foo=", "foo=")]
    [InlineData("1.2.3.4", "1.2.3.4")]
    [InlineData(@"'foo \'bar' ", "foo 'bar")]
    public void GetValue_Success(string input, string expected)
    {
        PqConnectionStringTokenizer subject = new(input);
        Assert.Equal(expected, subject.GetValue());
    }

    [Theory]
    [InlineData("")]
    [InlineData(" ")]
    [InlineData("'d")]
    [InlineData(@"'\d'")]
    public void GetValue_Throws(string input)
    {
        PqConnectionStringTokenizer subject = new(input);
        Assert.Throws<PqConnectionStringParserException>(() => subject.GetValue());
    }
}