recyclarr/src/tests/Recyclarr.TrashLib.Tests/Config/Parsing/PostProcessing/ConfigMerging/ConfigIncludeProcessorTest.cs

using System.IO.Abstractions;
using Recyclarr.TrashLib.Config.Parsing.PostProcessing.ConfigMerging;
using Recyclarr.TrashLib.Startup;

namespace Recyclarr.TrashLib.Tests.Config.Parsing.PostProcessing.ConfigMerging;

[TestFixture]
[Parallelizable(ParallelScope.All)]
public class ConfigIncludeProcessorTest
{
    [Test, AutoMockData]
    public void Can_process_expected_type(
        ConfigIncludeProcessor sut)
    {
        var result = sut.CanProcess(new ConfigYamlInclude());
        result.Should().BeTrue();
    }

    [Test, AutoMockData]
    public void Throw_when_null_include_path(
        ConfigIncludeProcessor sut)
    {
        var includeDirective = new ConfigYamlInclude
        {
            Config = null
        };

        var act = () => sut.GetPathToConfig(includeDirective, default);

        act.Should().Throw<YamlIncludeException>();
    }

    [Test, AutoMockData]
    public void Get_relative_config_include_path(
        [Frozen(Matching.ImplementedInterfaces)] MockFileSystem fs,
        [Frozen] IAppPaths paths,
        ConfigIncludeProcessor sut)
    {
        fs.AddEmptyFile(paths.ConfigsDirectory.File("foo/bar/config.yml"));

        var includeDirective = new ConfigYamlInclude
        {
            Config = "foo/bar/config.yml"
        };

        var path = sut.GetPathToConfig(includeDirective, default);

        path.FullName.Should().Be(paths.ConfigsDirectory.File("foo/bar/config.yml").FullName);
    }

    [Test, AutoMockData]
    public void Get_absolute_config_include_path(
        [Frozen(Matching.ImplementedInterfaces)] MockFileSystem fs,
        ConfigIncludeProcessor sut)
    {
        var absolutePath = fs.CurrentDirectory().File("foo/bar/config.yml");
        fs.AddEmptyFile(absolutePath);

        var includeDirective = new ConfigYamlInclude
        {
            Config = absolutePath.FullName
        };

        var path = sut.GetPathToConfig(includeDirective, default);

        path.FullName.Should().Be(absolutePath.FullName);
    }

    [Test, AutoMockData]
    public void Throw_when_relative_config_include_path_does_not_exist(
        // Freeze the mock FS even though we don't use it so that the "Exists" check works right.
        [Frozen(Matching.ImplementedInterfaces)] MockFileSystem fs,
        ConfigIncludeProcessor sut)
    {
        var includeDirective = new ConfigYamlInclude
        {
            Config = "foo/bar/config.yml"
        };

        var act = () => sut.GetPathToConfig(includeDirective, default);

        act.Should().Throw<YamlIncludeException>().WithMessage("Relative*not exist*");
    }

    [Test, AutoMockData]
    public void Throw_when_absolute_config_include_path_does_not_exist(
        [Frozen(Matching.ImplementedInterfaces)] MockFileSystem fs,
        ConfigIncludeProcessor sut)
    {
        var absolutePath = fs.CurrentDirectory().File("foo/bar/config.yml");

        var includeDirective = new ConfigYamlInclude
        {
            Config = absolutePath.FullName
        };

        var act = () => sut.GetPathToConfig(includeDirective, default);

        act.Should().Throw<YamlIncludeException>().WithMessage("Absolute*not exist*");
    }
}