ReaderTest

using System;
using System.Collections.Generic;
using Microsoft.VisualStudio.TestTools.UnitTesting;

using Uloha4_ViceZarovnani;

namespace Uloha4ViceZarovnaniTests
{
	[TestClass]
	public class ReaderUT
	{
		[TestMethod]
		public void ReadWord_EmptyInputTest()
		{
			var input = new System.IO.StringReader("");
			Reader r = new Reader(input);

			var output = new List<string>();
			var referenceOutput = new List<string>();

			while (!r.IsEof()) {
				output.Add(r.ReadWord());
			}

			Assert.AreEqual(output.ToString(), referenceOutput.ToString());
		}

		[TestMethod]
		public void ReadWord_SingleWordTest()
		{
			var input = new System.IO.StringReader("hello");
			Reader r = new Reader(input);

			var output = new List<string>();

			string[] refOut = { "hello" };
			var referenceOutput = new List<string>(refOut);

			while (!r.IsEof()) {
				output.Add(r.ReadWord());
			}

			Assert.AreEqual(output.ToString(), referenceOutput.ToString());
		}

		[TestMethod]
		public void ReadWord_OneLineTest()
		{
			var input = new System.IO.StringReader("Hello world test.	How are   you?");
			Reader r = new Reader(input);

			var output = new List<string>();

			string[] refOut = { "Hello", "world", "test.", "How", "are", "you?" };
			var referenceOutput = new List<string>(refOut);

			while (!r.IsEof()) {
				output.Add(r.ReadWord());
			}

			Assert.AreEqual(output.ToString(), referenceOutput.ToString());
		}

		[TestMethod]
		public void ReadWord_MultipleLineTest()
		{
			var input = new System.IO.StringReader("	Hello world test.\n\n	How are   you\n? \n");
			Reader r = new Reader(input);

			var output = new List<string>();

			string[] refOut = { "Hello", "world", "test.", "How", "are", "you?" };
			var referenceOutput = new List<string>();

			while (!r.IsEof()) {
				output.Add(r.ReadWord());
			}

			Assert.AreEqual(output.ToString(), referenceOutput.ToString());
		}
	}
}

WriterTest

using System;
using System.IO;
using System.Text;
using Microsoft.VisualStudio.TestTools.UnitTesting;

using Uloha4_ViceZarovnani;

namespace Uloha4ViceZarovnaniTests
{
	[TestClass]
	public class WriterUT
	{
		[TestMethod]
		public void WriteT()
		{
			var sw = new StringWriter(new StringBuilder());

			var w = new Writer(sw);

			var input = "Hello \nworld!";
			w.Write(input);

			Assert.AreEqual(input, sw.ToString());
		}

		[TestMethod]
		public void WriteLineT()
		{
			var sw = new StringWriter(new StringBuilder());

			var w = new Writer(sw);

			var input = "Hello world!";
			w.WriteLine(input);

			string referenceOutput = "Hello world!" + Environment.NewLine;
			Assert.AreEqual(referenceOutput, sw.ToString());
		}


		[TestMethod]
		public void Write_HighlightT()
		{
			var sw = new StringWriter(new StringBuilder());

			var w = new Writer(sw);
			w.SetHighlightWhitespaces(true);

			var input = "Hello \nworld!";
			w.Write(input);

			string referenceOutput = "Hello.<-\nworld!";
			Assert.AreEqual(referenceOutput, sw.ToString());
		}
	}
}