using System.Collections;

namespace Codeforces.Test;

public class Tests
{
	[Fact]
	public void TestText()
	{
		IOTester.Start();
		string[] input = new[]
		{
			"5",
			"256 42",
			"1000 1000",
			"-1000 1000",
			"-1000 1000",
			"20 22"
		};

		IOTester.SetInput(input);
		Program.Main();
		string[] expectedOutput = new[]
		{
			"298",
			"2000",
			"0",
			"0",
			"42"
		};
		string[] actualOutput = IOTester.GetOutputLines();
		Assert.Equal(expectedOutput.Length, actualOutput.Length);
		for (int i = 0; i < expectedOutput.Length; i++)
		{
			Assert.Equal(expectedOutput[i], actualOutput[i]);
		}
	}

	[Theory]
	[ClassData(typeof(FileNameGenerator))]
	public void TestIO(string input, string output)
	{
		IOTester.Start();
		var lines = File.ReadLines(input);
		IOTester.SetInput(lines.ToArray());

		Program.Main();

		string[] expectedOutput = File.ReadLines(output).ToArray();
		string[] actualOutput = IOTester.GetOutputLines();
		Assert.Equal(expectedOutput.Length, actualOutput.Length);
		for (int i = 0; i < expectedOutput.Length; i++)
		{
			Assert.Equal(expectedOutput[i], actualOutput[i]);
		}
	}
}
public class FileNameGenerator : IEnumerable<object[]>
{
	private readonly string inputFolder = @"..\..\..\Input";
	public IEnumerator<object[]> GetEnumerator()
	{
		foreach (var input in Directory.GetFiles(inputFolder))
		{
			string name = Path.GetFileName(input);
			string output = $"..\\..\\..\\Output\\{name}.a";
			yield return new object[] { input, output };
		}
	}

	IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
}