dotnet-installer/test/E2E/EndToEndTest.cs

// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.

using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
using Xunit;
using Microsoft.DotNet.Cli.Utils;
using Microsoft.DotNet.ProjectModel;
using Microsoft.DotNet.Tools.Test.Utilities;

namespace Microsoft.DotNet.Tests.EndToEnd
{
    public class EndToEndTest : TestBase
    {
        private static readonly string s_expectedOutput = "Hello World!" + Environment.NewLine;
        private static readonly string s_testdirName = "e2etestroot";
        private static readonly string s_outputdirName = "testbin";
        
        private string Rid { get; set; }
        private string TestDirectory { get; set; }
        private string TestProject { get; set; }
        private string OutputDirectory { get; set; }

        public static void Main()
        {
            Console.WriteLine("Dummy Entrypoint.");
        }
       
        public EndToEndTest()
        {
            TestSetup();

            Rid = RuntimeIdentifier.Current;
        }

        [Fact]
        public void TestDotnetBuild()
        {
            var buildCommand = new BuildCommand(TestProject, output: OutputDirectory);

            buildCommand.Execute().Should().Pass();

            TestOutputExecutable(OutputDirectory, buildCommand.GetOutputExecutableName());
        }

        [Fact]
        [ActiveIssue(712, PlatformID.Windows | PlatformID.OSX | PlatformID.Linux)]
        public void TestDotnetBuildNativeRyuJit()
        {
            if(IsCentOS())
            {
                Console.WriteLine("Skipping native compilation tests on CentOS - https://github.com/dotnet/cli/issues/453");
                return;
            }

            var buildCommand = new BuildCommand(TestProject, output: OutputDirectory, native: true);

            buildCommand.Execute().Should().Pass();

            var nativeOut = Path.Combine(OutputDirectory, "native");
            TestOutputExecutable(nativeOut, buildCommand.GetOutputExecutableName());
        }

        [Fact]
        public void TestDotnetBuildNativeCpp()
        {
            if(IsCentOS())
            {
                Console.WriteLine("Skipping native compilation tests on CentOS - https://github.com/dotnet/cli/issues/453");
                return;
            }

            var buildCommand = new BuildCommand(TestProject, output: OutputDirectory, native: true, nativeCppMode: true);

            buildCommand.Execute().Should().Pass();

            var nativeOut = Path.Combine(OutputDirectory, "native");
            TestOutputExecutable(nativeOut, buildCommand.GetOutputExecutableName());
        }

        [Fact]
        public void TestDotnetRun()
        {
            var runCommand = new RunCommand(TestProject);

            runCommand.Execute()
                .Should()
                .Pass();
        }
        
        [Fact]
        public void TestDotnetPack()
        {
            var packCommand = new PackCommand(TestDirectory, output: OutputDirectory);

            packCommand.Execute()
                .Should()
                .Pass();
        }

        [Fact]
        public void TestDotnetPublish()
        {
            var publishCommand = new PublishCommand(TestProject, output: OutputDirectory);
            publishCommand.Execute().Should().Pass();

            TestOutputExecutable(OutputDirectory, publishCommand.GetOutputExecutable());    
        }

        private void TestSetup()
        {
            var root = Temp.CreateDirectory();

            TestDirectory = root.CreateDirectory(s_testdirName).Path;
            TestProject = Path.Combine(TestDirectory, "project.json");
            OutputDirectory = Path.Combine(TestDirectory, s_outputdirName);

            InitializeTestDirectory();   
        }

        private void InitializeTestDirectory()
        {
            var currentDirectory = Directory.GetCurrentDirectory();
            Directory.SetCurrentDirectory(TestDirectory);

            new NewCommand().Execute().Should().Pass();
            new RestoreCommand().Execute("--quiet").Should().Pass();

            Directory.SetCurrentDirectory(currentDirectory);
        }

        private void TestOutputExecutable(string outputDir, string executableName)
        {
            var executablePath = Path.Combine(outputDir, executableName);

            var executableCommand = new TestCommand(executablePath);

            var result = executableCommand.ExecuteWithCapturedOutput("");

            result.Should().HaveStdOut(s_expectedOutput);
            result.Should().NotHaveStdErr();
            result.Should().Pass();
        }

        private bool IsCentOS()
        {
            if(RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
            {
                const string OSIDFILE = "/etc/os-release";

                if(File.Exists(OSIDFILE))
                {
                    return File.ReadAllText(OSIDFILE).ToLower().Contains("centos");
                }
            }

            return false;
        }
    }
}

public class StreamForwarderTests
{
    [Fact]
    public void Unbuffered()
    {
        Forward(4, true, "");
        Forward(4, true, "123", "123");
        Forward(4, true, "1234", "1234");
        Forward(3, true, "123456789", "123", "456", "789");
        Forward(4, true, "\r\n", "\n");
        Forward(4, true, "\r\n34", "\n", "34");
        Forward(4, true, "1\r\n4", "1\n", "4");
        Forward(4, true, "12\r\n", "12\n");
        Forward(4, true, "123\r\n", "123\n");
        Forward(4, true, "1234\r\n", "1234", "\n");
        Forward(3, true, "\r\n3456\r\n9", "\n", "3456", "\n", "9");
        Forward(4, true, "\n", "\n");
        Forward(4, true, "\n234", "\n", "234");
        Forward(4, true, "1\n34", "1\n", "34");
        Forward(4, true, "12\n4", "12\n", "4");
        Forward(4, true, "123\n", "123\n");
        Forward(4, true, "1234\n", "1234", "\n");
        Forward(3, true, "\n23456\n89", "\n", "23456", "\n", "89");
    }

    [Fact]
    public void LineBuffered()
    {
        Forward(4, false, "");
        Forward(4, false, "123", "123\n");
        Forward(4, false, "1234", "1234\n");
        Forward(3, false, "123456789", "123456789\n");
        Forward(4, false, "\r\n", "\n");
        Forward(4, false, "\r\n34", "\n", "34\n");
        Forward(4, false, "1\r\n4", "1\n", "4\n");
        Forward(4, false, "12\r\n", "12\n");
        Forward(4, false, "123\r\n", "123\n");
        Forward(4, false, "1234\r\n", "1234\n");
        Forward(3, false, "\r\n3456\r\n9", "\n", "3456\n", "9\n");
        Forward(4, false, "\n", "\n");
        Forward(4, false, "\n234", "\n", "234\n");
        Forward(4, false, "1\n34", "1\n", "34\n");
        Forward(4, false, "12\n4", "12\n", "4\n");
        Forward(4, false, "123\n", "123\n");
        Forward(4, false, "1234\n", "1234\n");
        Forward(3, false, "\n23456\n89", "\n", "23456\n", "89\n");
    }

    private static void Forward(int bufferSize, bool unbuffered, string str, params string[] expectedWrites)
    {
        var expectedCaptured = str.Replace("\r", "").Replace("\n", Environment.NewLine);

        // No forwarding.
        Forward(bufferSize, ForwardOptions.None, str, null, new string[0]);

        // Capture only.
        Forward(bufferSize, ForwardOptions.Capture, str, expectedCaptured, new string[0]);

        var writeOptions = unbuffered ?
            ForwardOptions.Write | ForwardOptions.WriteLine :
            ForwardOptions.WriteLine;

        // Forward.
        Forward(bufferSize, writeOptions, str, null, expectedWrites);

        // Forward and capture.
        Forward(bufferSize, writeOptions | ForwardOptions.Capture, str, expectedCaptured, expectedWrites);
    }

    private enum ForwardOptions
    {
        None = 0x0,
        Capture = 0x1,
        Write = 0x02,
        WriteLine = 0x04,
    }

    private static void Forward(int bufferSize, ForwardOptions options, string str, string expectedCaptured, string[] expectedWrites)
    {
        var forwarder = new StreamForwarder(bufferSize);
        var writes = new List<string>();
        if ((options & ForwardOptions.WriteLine) != 0)
        {
            forwarder.ForwardTo(
                write: (options & ForwardOptions.Write) == 0 ? (Action<string>)null : writes.Add,
                writeLine: s => writes.Add(s + "\n"));
        }
        if ((options & ForwardOptions.Capture) != 0)
        {
            forwarder.Capture();
        }
        forwarder.Read(new StringReader(str));
        Assert.Equal(expectedWrites, writes);
        var captured = forwarder.GetCapturedOutput();
        Assert.Equal(expectedCaptured, captured);
    }
}