h-school/tests/HSchool.People.Tests/GoldenRosterTests.cs

namespace HSchool.People.Tests;

public class GoldenRosterTests
{
    private const string Native = "RussianLanguage";

    [Fact]
    public void GoldenRoster_MatchesFixture()
    {
        var roster = Fixtures.Generate(Fixtures.Classrooms(4));
        var actual = RosterFingerprint.Format(roster, Fixtures.SchoolSeed, "Russia", Native);
        var relative = Path.Combine("golden", "roster.txt");
        var output = Path.Combine(AppContext.BaseDirectory, relative);
        var source = Path.Combine(Fixtures.RepoRoot(), "tests", "HSchool.People.Tests", relative);

        if (string.Equals(Environment.GetEnvironmentVariable("WRITE_GOLDEN"), "1", StringComparison.Ordinal))
        {
            Directory.CreateDirectory(Path.GetDirectoryName(source)!);
            File.WriteAllText(source, actual);
            Directory.CreateDirectory(Path.GetDirectoryName(output)!);
            File.WriteAllText(output, actual);
        }

        Assert.True(File.Exists(output), $"Golden roster is missing at {output}.");
        RosterFingerprint.AssertEqual(File.ReadAllText(output), actual);
    }
}