using Strata.SqlTools.SqlBreakdown.Enums.SQL;
using Strata.SqlTools.Statements.SqlServer;

namespace Strata.SqlTools.SqlBreakdown.Tests.SqlServer;

[TestFixture]
public class StatementReaderTests
{
    [Test]
    public void StatementReader_ParsesCalculationString()
    {
        // Arrange
        var calculationString = "(1 + 2) / sum([586883]) + sum([586664]) - sum([586664_1]) * 2.3";
        var sqlReader = new StatementReader(calculationString);
        var tokens = new List<(TokenType Type, string Value)>();

        // Act
        while (sqlReader.Read())
        {
            tokens.Add((sqlReader.TokenType, sqlReader.TokenValue));
        }

        // Assert
        Assert.That(tokens, Is.Not.Empty);
        Assert.Multiple(() =>
        {
            Assert.That(tokens[0].Type, Is.EqualTo(TokenType.LeftParenthesis));
            Assert.That(tokens[1].Type, Is.EqualTo(TokenType.Number));
            Assert.That(tokens[1].Value, Is.EqualTo("1"));
        });
    }
}