OptionConfigurationTest.cs

// Copyright (c) Mohamed Hassan & Contributors. All rights reserved. See License.md in the project root for license information.

namespace OData2Poco.Tests;

using InfraStructure.FileSystem;

public class OptionConfigurationTest : BaseTest
{
    private const string Config = "config.txt";

    private const string Content = @"
# -r mysite.com
-r localhost

-v  #verbose
   
";

    private OptionConfiguration _cfg;

    [SetUp]
    public void SetUp()
    {
        _fileSystem = new NullFileSystem();
        _cfg = new OptionConfiguration(_fileSystem);
        Fakes.Mock(Config, Content);
    }

    [Test]
    public void Read_existing_configuration_file_test()
    {
        //Arrange
        string[] expected = ["-r", "localhost", "-v"];
        //Act
        var sut = _cfg.ReadConfig(Config);
        //Assert
        sut.Should().BeEquivalentTo(expected);
    }

    [Test]
    public void Load_args_from_existing_configuration_file_test()
    {
        //Arrange
        var args = new[]
        {
            "@config.txt"
        };
        string[] expected = ["-r", "localhost", "-v"];
        Fakes.Mock("o2pgen.txt", Content);
        //Act
        var flag = _cfg.TryGetConfigurationFile(args, out var cli, out var error, out var fileName);
        //Assert
        flag.Should().BeTrue();
        fileName.Should().Be("config.txt");
        error.Should().BeNull();
        cli.Should().BeEquivalentTo(expected);
    }

    [Test]
    public void Load_args_from_not_existing_configuration_file_test()
    {
        //Arrange
        var args = new[]
        {
            "@config2.txt"
        };
        //Act
        var flag = _cfg.TryGetConfigurationFile(args, out var cli, out var error, out var _);
        //Assert
        flag.Should().BeFalse();
        cli.Should().BeEquivalentTo(args);
        error.Should().NotBeNull();
    }

    [Test]
    public void Load_args_from_default_configuration_file_test()
    {
        //Arrange
        string[] expected = ["-r", "localhost", "-v"];
        var args = Array.Empty<string>();
        Fakes.Mock("o2pgen.txt", Content);
        //Act
        var flag = _cfg.TryGetConfigurationFile(args, out var cli, out var error, out var fileName);
        Fakes.Remove("o2pgen.txt");

        //Assert
        flag.Should().BeTrue();
        fileName.Should().Be("o2pgen.txt");
        error.Should().BeNull();
        cli.Should().BeEquivalentTo(expected);
    }

    [Test]
    public void More_args_without_configuration_has_no_default_config_test()
    {
        //Arrange
        var args = new[]
        {
            "-r", "localhost"
        };
        //Act
        var flag = _cfg.TryGetConfigurationFile(args, out var cli, out var error, out var _);
        //Assert
        flag.Should().BeFalse();
        cli.Should().BeEquivalentTo(args);
        error.Should().BeNull();
    }

    [Test]
    public void Empty_args_without_existing_default_config_o2pgen_txt_test()
    {
        //Arrange
        var args = Array.Empty<string>();
        //Act
        var flag = _cfg.TryGetConfigurationFile(args, out var cli, out var error, out var _);

        //Assert
        flag.Should().BeFalse();
        cli.Should().BeEmpty();
        error.Should().BeNull();
    }

    [Test]
    public void ConfigurationFile_with_include()
    {
        //Arrange
        var text2 = @"
-b bb
#comment
".Trim();

        var text1 = @"
-a aa
#include f2.txt
#include aa.txt
#comment2

".Trim();
        var expected = @"
-a aa
-b bb
#comment
#include aa.txt
#comment2
".Trim();

        Fakes.Mock("f2.txt", text2);
        Fakes.Mock("f1.txt", text1);
        //Act
        var text3 = _cfg.LoadWithIncludeFile("f1.txt", out var errors);
        //Assert
        errors.Length.Should().Be(1);
        text3.Trim().Should().BeEquivalentTo(expected.Trim());
    }
}