using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Seshat.UnitTests
{
    public class CodeWriterTests : UnitTestSharp.TestFixture
    {
        public void IndentBlock()
        {
            CodeWriter writer = new CodeWriter();
            CheckEqual(0, writer.CurrentIndent);
            using (writer.Indent())
            {
                CheckEqual(1, writer.CurrentIndent);
                using (writer.Indent())
                {
                    CheckEqual(2, writer.CurrentIndent);
                }

                CheckEqual(1, writer.CurrentIndent);
            }
            CheckEqual(0, writer.CurrentIndent);
        }

        public void AddCodeLine()
        {
            CodeWriter writer = new CodeWriter();
            writer.AddCodeLine("foo");

            CheckEqual("foo", writer.FullText);
        }

        public void AddCodeLineNull()
        {
            CodeWriter writer = new CodeWriter();
            writer.AddCodeLine(null);

            CheckEqual("", writer.FullText);
        }

        public void AddCodeLineEmpty()
        {
            CodeWriter writer = new CodeWriter();
            writer.AddCodeLine("");

            CheckEqual("", writer.FullText);
        }

        public void AddCodeLineIndent()
        {
            CodeWriter writer = new CodeWriter();
            writer.CurrentIndent++;
            writer.IndentWhitespace = "QQ";
            writer.AddCodeLine("foo");

            CheckEqual("QQfoo", writer.FullText);
        }

        public void AddCodeLineNewline()
        {
            CodeWriter writer = new CodeWriter();
            writer.CurrentIndent++;
            writer.IndentWhitespace = "QQ";
            writer.AddCodeLine("foo");
            writer.CurrentIndent++;
            writer.IndentWhitespace = "RRR";
            writer.AddCodeLine("bar");

            CheckEqual("QQfoo" + System.Environment.NewLine + "RRRRRRbar", writer.FullText);
        }
    }
}