Added results and exports to the BeyondFacts Lab (#1184)

app/Tests/BeyondFactsLab/BeyondFactsLabStoreResultTests.cs

@@ -0,0 +1,134 @@
+using AIStudio.Assistants.BeyondFactsLab;
+
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace AIStudio.Tests.BeyondFactsLab;
+
+/// <summary>
+/// Checks how the BeyondFacts Lab stores the results of a preparation.
+/// </summary>
+[TestFixture]
+public sealed class BeyondFactsLabStoreResultTests
+{
+    private string dataDirectory = string.Empty;
+
+    [SetUp]
+    public void CreateDataDirectory()
+    {
+        this.dataDirectory = Path.Combine(Path.GetTempPath(), $"ai-studio-beyondfacts-lab-{Guid.NewGuid():N}");
+        Directory.CreateDirectory(this.dataDirectory);
+    }
+
+    [TearDown]
+    public void DeleteDataDirectory()
+    {
+        if (Directory.Exists(this.dataDirectory))
+            Directory.Delete(this.dataDirectory, true);
+    }
+
+    [Test]
+    public async Task APreparationWithoutAResultGetsAnEmptyOne()
+    {
+        var store = this.CreateStore();
+        var created = await store.CreateAsync("Panel");
+
+        var result = await store.LoadResultAsync(created.ProjectId, BflResultKind.POSITION_PAPER);
+
+        using (Assert.EnterMultipleScope())
+        {
+            Assert.That(result.Draft, Is.Null);
+            Assert.That(result.Confirmed, Is.Null);
+        }
+    }
+
+    [Test]
+    public async Task AResultIsStoredWithItsDraftAndItsConfirmedVersion()
+    {
+        var store = this.CreateStore();
+        var created = await store.CreateAsync("Panel");
+        var confirmedAtUtc = new DateTimeOffset(2026, 11, 10, 9, 0, 0, TimeSpan.Zero);
+        var result = new BflResult { Draft = new BflResultVersion { Text = "# Positionsblatt", WorkStateRevisions = { [BflStep.GOALS_AND_ROLE] = 3 } } };
+        result.Confirm("# Positionsblatt\n\nBestätigt", confirmedAtUtc);
+        result.Edit();
+        result.Draft!.Text = "# Positionsblatt\n\nÜberarbeitet";
+
+        var changed = await store.SaveResultAsync(created.ProjectId, BflResultKind.POSITION_PAPER, result);
+        var loaded = await this.CreateStore().LoadResultAsync(created.ProjectId, BflResultKind.POSITION_PAPER);
+        var others = await this.CreateStore().LoadResultAsync(created.ProjectId, BflResultKind.CONVERSATION_GUIDE);
+
+        using (Assert.EnterMultipleScope())
+        {
+            Assert.That(changed.ModifiedAtUtc, Is.GreaterThanOrEqualTo(created.ModifiedAtUtc));
+            Assert.That(loaded.Draft!.Text, Is.EqualTo("# Positionsblatt\n\nÜberarbeitet"));
+            Assert.That(loaded.Confirmed!.Text, Is.EqualTo("# Positionsblatt\n\nBestätigt"));
+            Assert.That(loaded.Confirmed.ChangedAtUtc, Is.EqualTo(confirmedAtUtc));
+            Assert.That(loaded.Confirmed.WorkStateRevisions, Is.EqualTo(new Dictionary<BflStep, int> { [BflStep.GOALS_AND_ROLE] = 3 }));
+            Assert.That(others.Confirmed, Is.Null, "Each kind of result has a file of its own.");
+        }
+    }
+
+    [Test]
+    public async Task ADamagedResultIsNeitherOpenedNorOverwritten()
+    {
+        const string DAMAGED = "{ \"draft\": ";
+        var store = this.CreateStore();
+        var created = await store.CreateAsync("Panel");
+        var path = await this.WriteResultFileAsync(created.ProjectId, "open-points.json", DAMAGED);
+
+        var results = await store.LoadResultsAsync(created.ProjectId);
+
+        using (Assert.EnterMultipleScope())
+        {
+            Assert.That(results.ContainsKey(BflResultKind.OPEN_POINTS), Is.False);
+            Assert.That(results.ContainsKey(BflResultKind.POSITION_PAPER), Is.True);
+            await Assert.ThrowsAsync<InvalidDataException>(async () => await store.LoadResultAsync(created.ProjectId, BflResultKind.OPEN_POINTS));
+            await Assert.ThrowsAsync<InvalidDataException>(async () => await store.SaveResultAsync(created.ProjectId, BflResultKind.OPEN_POINTS, new BflResult()));
+            Assert.That(await File.ReadAllTextAsync(path), Is.EqualTo(DAMAGED));
+        }
+    }
+
+    [Test]
+    public async Task AResultWithoutItsTextIsNotOpened()
+    {
+        const string WITHOUT_TEXT = """{ "schemaVersion": 1, "confirmed": { "text": null, "workStateRevisions": {} } }""";
+        var store = this.CreateStore();
+        var created = await store.CreateAsync("Panel");
+        await this.WriteResultFileAsync(created.ProjectId, "position-paper.json", WITHOUT_TEXT);
+
+        await Assert.ThrowsAsync<InvalidDataException>(async () => await store.LoadResultAsync(created.ProjectId, BflResultKind.POSITION_PAPER));
+    }
+
+    [Test]
+    public async Task AResultOfANewerVersionIsNotOverwritten()
+    {
+        const string NEWER = """{ "schemaVersion": 2 }""";
+        var store = this.CreateStore();
+        var created = await store.CreateAsync("Panel");
+        var path = await this.WriteResultFileAsync(created.ProjectId, "reflection-folder.json", NEWER);
+
+        using (Assert.EnterMultipleScope())
+        {
+            await Assert.ThrowsAsync<InvalidDataException>(async () => await store.SaveResultAsync(created.ProjectId, BflResultKind.REFLECTION_FOLDER, new BflResult()));
+            Assert.That(await File.ReadAllTextAsync(path), Is.EqualTo(NEWER));
+        }
+    }
+
+    [Test]
+    public async Task AResultOfAMissingPreparationIsNotWritten()
+    {
+        var store = this.CreateStore();
+
+        await Assert.ThrowsAsync<FileNotFoundException>(async () => await store.SaveResultAsync(Guid.NewGuid(), BflResultKind.POSITION_PAPER, new BflResult()));
+    }
+
+    private async Task<string> WriteResultFileAsync(Guid projectId, string fileName, string content)
+    {
+        var directory = Path.Combine(this.dataDirectory, BeyondFactsLabStore.ROOT_DIRECTORY_NAME, projectId.ToString("D"), "results");
+        Directory.CreateDirectory(directory);
+        var path = Path.Combine(directory, fileName);
+        await File.WriteAllTextAsync(path, content);
+        return path;
+    }
+
+    private BeyondFactsLabStore CreateStore() => new(NullLogger<BeyondFactsLabStore>.Instance, new BflStorageOptions { DataDirectory = this.dataDirectory });
+}

app/Tests/BeyondFactsLab/BflPromptLibraryTests.cs

@@ -68,12 +68,14 @@ public sealed class BflPromptLibraryTests
         var core = string.Join("\n", BflPromptLibrary.PlaceholdersOf(BflPromptLibrary.CORE_PATH).Select(name => $"{{{{{name}}}}}"));
         var onboarding = string.Join("\n", BflPromptLibrary.PlaceholdersOf(BflPromptLibrary.ONBOARDING_PATH).Select(name => $"{{{{{name}}}}}"));
         var workState = string.Join("\n", BflPromptLibrary.PlaceholdersOf(BflPromptLibrary.WORK_STATE_PATH).Select(name => $"{{{{{name}}}}}"));
+        var result = string.Join("\n", BflPromptLibrary.PlaceholdersOf(BflPromptLibrary.ResultPath(BflResultKind.POSITION_PAPER)).Select(name => $"{{{{{name}}}}}"));
 
         using (Assert.EnterMultipleScope())
         {
             Assert.That(BflPromptComposer.Compose(new(core, "Leitfaden", "Schritt", "Anrede"), BflStep.FRAMEWORK, new Dictionary<BflStep, BflStepFormData>(), [], "Deutsch"), Does.Not.Contain("{{"));
             Assert.That(BflPromptComposer.ComposeOnboarding(new(onboarding, "Anrede"), "Deutsch"), Does.Not.Contain("{{"));
             Assert.That(BflPromptComposer.ComposeWorkStateRequest(workState, BflStep.FRAMEWORK, new BflStepFormData()), Does.Not.Contain("{{"));
+            Assert.That(BflPromptComposer.ComposeResultRequest(result, new Dictionary<BflStep, BflWorkState>()), Does.Not.Contain("{{"));
         }
     }
 

app/Tests/BeyondFactsLab/BflReflectionFolderTests.cs

@@ -0,0 +1,200 @@
+using System.Globalization;
+
+using AIStudio.Assistants.BeyondFactsLab;
+using AIStudio.Chat;
+
+namespace AIStudio.Tests.BeyondFactsLab;
+
+/// <summary>
+/// Checks how the BeyondFacts Lab puts the reflection folder together, without a model.
+/// </summary>
+/// <remarks>
+/// The folder repeats what the person confirmed word for word, and it is meant to be passed on: personal disclosures
+/// stay out unless the person includes them.
+/// </remarks>
+[TestFixture]
+public sealed class BflReflectionFolderTests
+{
+    private static readonly DateTimeOffset NOW = new(2026, 11, 10, 9, 0, 0, TimeSpan.Zero);
+
+    [Test]
+    public void AConfirmedWorkStateAppearsWordForWordUnderItsStep()
+    {
+        var workStates = new Dictionary<BflStep, BflWorkState>();
+        Confirm(workStates, BflStep.KNOWLEDGE, new() { ["ESTABLISHED"] = "Gesichert-4711\n\n- mit Liste" });
+        var established = BflWorkStateSections.ForStep(BflStep.KNOWLEDGE).Single(section => section.Key == "ESTABLISHED");
+
+        var folder = Build(workStates);
+
+        using (Assert.EnterMultipleScope())
+        {
+            Assert.That(folder, Does.Contain($"## {BflStep.KNOWLEDGE.Title}\n"));
+            Assert.That(folder, Does.Contain($"### {established.Title}\n\nGesichert-4711\n\n- mit Liste\n"));
+            Assert.That(folder.IndexOf("Gesichert-4711", StringComparison.Ordinal), Is.GreaterThan(folder.IndexOf($"## {BflStep.KNOWLEDGE.Title}", StringComparison.Ordinal)));
+        }
+    }
+
+    [Test]
+    public void ADraftNeverAppears()
+    {
+        var workStates = new Dictionary<BflStep, BflWorkState>
+        {
+            [BflStep.KNOWLEDGE] = new() { Draft = new(StringComparer.Ordinal) { ["ESTABLISHED"] = "ENTWURF-4711" } },
+        };
+
+        Assert.That(Build(workStates), Does.Not.Contain("ENTWURF-4711"));
+    }
+
+    [Test]
+    public void EveryStepAppearsInItsOrderAlsoWithoutAConfirmation()
+    {
+        var folder = Build(new Dictionary<BflStep, BflWorkState>());
+        var positions = BflStep.All.Select(step => folder.IndexOf($"## {step.Title}\n", StringComparison.Ordinal)).ToList();
+
+        using (Assert.EnterMultipleScope())
+        {
+            Assert.That(positions, Has.All.GreaterThanOrEqualTo(0));
+            Assert.That(positions, Is.Ordered);
+        }
+    }
+
+    [Test]
+    public void APersonalSectionStaysOutUnlessThePersonIncludesIt()
+    {
+        var workStates = new Dictionary<BflStep, BflWorkState>();
+        Confirm(workStates, BflStep.VALUES_AND_PERSPECTIVES, new() { ["VALUES"] = "Gerechtigkeit", ["PERSONAL_INVOLVEMENT"] = "PERSÖNLICH-4711" });
+
+        var without = Build(workStates);
+        var with = Build(workStates, includePersonalDisclosures: true);
+
+        using (Assert.EnterMultipleScope())
+        {
+            Assert.That(without, Does.Not.Contain("PERSÖNLICH-4711"));
+            Assert.That(without, Does.Contain("Gerechtigkeit"));
+            Assert.That(with, Does.Contain("PERSÖNLICH-4711"));
+        }
+    }
+
+    [Test]
+    public void TheOpenPointsOfAllStepsAreGatheredAfterTheSteps()
+    {
+        var workStates = new Dictionary<BflStep, BflWorkState>();
+        Confirm(workStates, BflStep.FRAMEWORK, new() { ["FORMAT"] = "Podium", ["OPEN_POINTS"] = "OFFEN-1" });
+        Confirm(workStates, BflStep.STRATEGY, new() { ["OPEN_POINTS"] = "OFFEN-5" });
+
+        var folder = Build(workStates);
+        var lastStep = folder.IndexOf($"## {BflStep.RESULTS.Title}\n", StringComparison.Ordinal);
+
+        using (Assert.EnterMultipleScope())
+        {
+            Assert.That(folder.IndexOf("OFFEN-1", StringComparison.Ordinal), Is.GreaterThan(lastStep));
+            Assert.That(folder.IndexOf("OFFEN-5", StringComparison.Ordinal), Is.GreaterThan(folder.IndexOf("OFFEN-1", StringComparison.Ordinal)));
+            Assert.That(folder.IndexOf("OFFEN-1", StringComparison.Ordinal), Is.EqualTo(folder.LastIndexOf("OFFEN-1", StringComparison.Ordinal)), "The open points appear once.");
+        }
+    }
+
+    [Test]
+    public void TheMaterialIsListedByName()
+    {
+        var materials = new List<BflMaterial>
+        {
+            new() { Name = "Studie_2026.pdf", Kind = BflMaterialKind.DOCUMENT, AddedAtUtc = NOW },
+            new() { Name = "Interview.m4a", Kind = BflMaterialKind.RECORDING, AddedAtUtc = NOW.AddMinutes(1) },
+        };
+
+        var folder = BflReflectionFolder.Build(new BflReflectionFolderInput("Panel", new Dictionary<BflStep, BflWorkState>(), Forms(), materials, new Dictionary<BflStep, IReadOnlyList<BflConversationMessage>>(), false, CultureInfo.InvariantCulture));
+
+        using (Assert.EnterMultipleScope())
+        {
+            Assert.That(folder, Does.Contain("- Studie\\_2026\\.pdf ("));
+            Assert.That(folder, Does.Contain("- Interview\\.m4a ("));
+        }
+    }
+
+    [Test]
+    public void TheConversationsAppearOnlyWhenThePersonAddsThem()
+    {
+        var conversations = new Dictionary<BflStep, IReadOnlyList<BflConversationMessage>>
+        {
+            [BflStep.STRATEGY] = [new(true, "FRAGE-4711"), new(false, "ANTWORT-4711")],
+        };
+
+        var without = Build(new Dictionary<BflStep, BflWorkState>());
+        var with = Build(new Dictionary<BflStep, BflWorkState>(), conversations: conversations);
+
+        using (Assert.EnterMultipleScope())
+        {
+            Assert.That(without, Does.Not.Contain("FRAGE-4711"));
+            Assert.That(with, Does.Contain("FRAGE-4711"));
+            Assert.That(with.IndexOf("ANTWORT-4711", StringComparison.Ordinal), Is.GreaterThan(with.IndexOf("FRAGE-4711", StringComparison.Ordinal)));
+        }
+    }
+
+    [Test]
+    public void TheConversationOfAStepWithPersonalDisclosuresStaysOutUnlessThePersonIncludesThem()
+    {
+        var conversations = new Dictionary<BflStep, IReadOnlyList<BflConversationMessage>>
+        {
+            [BflStep.VALUES_AND_PERSPECTIVES] = [new(true, "BETROFFEN-4711")],
+            [BflStep.STRATEGY] = [new(true, "STRATEGIE-4711")],
+        };
+
+        var without = Build(new Dictionary<BflStep, BflWorkState>(), conversations: conversations);
+        var with = Build(new Dictionary<BflStep, BflWorkState>(), includePersonalDisclosures: true, conversations: conversations);
+
+        using (Assert.EnterMultipleScope())
+        {
+            Assert.That(BflReflectionFolder.MayHoldPersonalDisclosures(BflStep.VALUES_AND_PERSPECTIVES), Is.True);
+            Assert.That(BflReflectionFolder.MayHoldPersonalDisclosures(BflStep.STRATEGY), Is.False);
+            Assert.That(without, Does.Not.Contain("BETROFFEN-4711"));
+            Assert.That(without, Does.Contain("STRATEGIE-4711"));
+            Assert.That(with, Does.Contain("BETROFFEN-4711"));
+        }
+    }
+
+    [Test]
+    public void TheMessagesOfAConversationLeaveOutWhatThePersonNeverSaw()
+    {
+        var thread = BflThreadFactory.Create(new BflStepThreadLocation(Guid.NewGuid(), BflStep.STRATEGY));
+        thread.Blocks.Add(Block(ChatRole.USER, "VERSTECKT-4711", hidden: true));
+        thread.Blocks.Add(Block(ChatRole.AI, "Willkommen"));
+        thread.Blocks.Add(Block(ChatRole.USER, "  Meine Frage  "));
+        thread.Blocks.Add(Block(ChatRole.AI, " "));
+
+        var messages = BflReflectionFolder.MessagesOf(thread);
+
+        Assert.That(messages, Is.EqualTo(new[] { new BflConversationMessage(false, "Willkommen"), new BflConversationMessage(true, "Meine Frage") }));
+    }
+
+    [Test]
+    public void TheNameOfThePreparationCannotBreakTheHeading()
+    {
+        var folder = BflReflectionFolder.Build(new BflReflectionFolderInput("Panel\n# Kopf", new Dictionary<BflStep, BflWorkState>(), Forms(), [], new Dictionary<BflStep, IReadOnlyList<BflConversationMessage>>(), false, CultureInfo.InvariantCulture));
+
+        Assert.That(folder.Split('\n')[0], Does.StartWith("# ").And.Contain("Panel").And.Contain("Kopf"));
+    }
+
+    private static string Build(IReadOnlyDictionary<BflStep, BflWorkState> workStates, bool includePersonalDisclosures = false, IReadOnlyDictionary<BflStep, IReadOnlyList<BflConversationMessage>>? conversations = null) => BflReflectionFolder.Build(new BflReflectionFolderInput("Panel", workStates, Forms(), [], conversations ?? new Dictionary<BflStep, IReadOnlyList<BflConversationMessage>>(), includePersonalDisclosures, CultureInfo.InvariantCulture));
+
+    private static Dictionary<BflStep, BflStepFormData> Forms() => BflStep.All.ToDictionary(step => step, _ => new BflStepFormData());
+
+    private static ContentBlock Block(ChatRole role, string text, bool hidden = false) => new()
+    {
+        Time = NOW,
+        ContentType = ContentType.TEXT,
+        Role = role,
+        Content = new ContentText { Text = text },
+        HideFromUser = hidden,
+    };
+
+    private static void Confirm(Dictionary<BflStep, BflWorkState> workStates, BflStep step, Dictionary<string, string> sections)
+    {
+        if (!workStates.TryGetValue(step, out var workState))
+        {
+            workState = new BflWorkState();
+            workStates[step] = workState;
+        }
+
+        workState.Confirm(sections, BflStaleness.UpstreamRevisionsOf(step, workStates), BflStaleness.FingerprintOf(new BflStepFormData()), NOW);
+    }
+}

app/Tests/BeyondFactsLab/BflResultRequestTests.cs

@@ -0,0 +1,81 @@
+using AIStudio.Assistants.BeyondFactsLab;
+
+namespace AIStudio.Tests.BeyondFactsLab;
+
+/// <summary>
+/// Checks the requests which let the model write the results of the BeyondFacts Lab, and how the lab reads what the
+/// model wrote.
+/// </summary>
+[TestFixture]
+public sealed class BflResultRequestTests
+{
+    private static readonly DateTimeOffset NOW = new(2026, 11, 10, 9, 0, 0, TimeSpan.Zero);
+
+    private static IEnumerable<BflResultKind> WrittenByModel => BflResultKind.All.Where(kind => kind.IsWrittenByModel);
+
+    [Test]
+    public async Task TheRequestOfEveryResultNamesTheStepsWithoutAConfirmedWorkState()
+    {
+        var workStates = new Dictionary<BflStep, BflWorkState>();
+        workStates[BflStep.FRAMEWORK] = new BflWorkState();
+        workStates[BflStep.FRAMEWORK].Confirm(new Dictionary<string, string> { ["FORMAT"] = "Podium" }, new Dictionary<BflStep, int>(), string.Empty, NOW);
+
+        foreach (var kind in WrittenByModel)
+        {
+            var request = BflPromptComposer.ComposeResultRequest(await BflPromptLibrary.ReadAsync(BflPromptLibrary.ResultPath(kind)), workStates);
+
+            using (Assert.EnterMultipleScope())
+            {
+                Assert.That(request, Does.Not.Contain("{{"), kind.ToString());
+                Assert.That(request, Does.Not.Contain($"„{BflStep.FRAMEWORK.Title}“"), kind.ToString());
+                foreach (var step in BflStep.All.Where(step => step is not BflStep.FRAMEWORK))
+                    Assert.That(request, Does.Contain($"„{step.Title}“"), $"{kind}: {step}");
+            }
+        }
+    }
+
+    [Test]
+    public void ARequestSaysWhenEveryStepIsConfirmed()
+    {
+        var workStates = new Dictionary<BflStep, BflWorkState>();
+        foreach (var step in BflStep.All)
+        {
+            workStates[step] = new BflWorkState();
+            workStates[step].Confirm(new Dictionary<string, string> { ["OPEN_POINTS"] = "Punkt" }, new Dictionary<BflStep, int>(), string.Empty, NOW);
+        }
+
+        Assert.That(BflPromptComposer.ComposeResultRequest("{{MISSING_WORK_STATES}}", workStates), Is.EqualTo("keine; alle Schritte sind bestätigt."));
+    }
+
+    [Test]
+    public void ADraftOfAWorkStateCountsAsMissing()
+    {
+        var workStates = new Dictionary<BflStep, BflWorkState> { [BflStep.STRATEGY] = new() { Draft = new(StringComparer.Ordinal) { ["OPEN_POINTS"] = "Entwurf" } } };
+
+        Assert.That(BflPromptComposer.ComposeResultRequest("{{MISSING_WORK_STATES}}", workStates), Does.Contain($"„{BflStep.STRATEGY.Title}“"));
+    }
+
+    [Test]
+    public void EveryResultOfAModelHasARequestTheTestFolderMayReplace()
+    {
+        using (Assert.EnterMultipleScope())
+        {
+            foreach (var kind in WrittenByModel)
+                Assert.That(BflPromptLibrary.AllPaths, Does.Contain(BflPromptLibrary.ResultPath(kind)), kind.ToString());
+
+            Assert.That(WrittenByModel.Select(BflPromptLibrary.ResultPath), Is.Unique);
+            Assert.Throws<ArgumentOutOfRangeException>(() => BflPromptLibrary.ResultPath(BflResultKind.REFLECTION_FOLDER));
+        }
+    }
+
+    [TestCase("# Positionsblatt\n\nText", "# Positionsblatt\n\nText", TestName = "AResultInPlainMarkdownStaysAsItIs")]
+    [TestCase("```markdown\n# Positionsblatt\n\nText\n```", "# Positionsblatt\n\nText", TestName = "ACodeBlockAroundTheWholeResultIsTakenOff")]
+    [TestCase("~~~\n# Leitfaden\n~~~", "# Leitfaden", TestName = "ACodeBlockWithTildesAroundTheWholeResultIsTakenOff")]
+    [TestCase("```\n# Fragen\n```\n\nText\n\n```\nCode\n```", "```\n# Fragen\n```\n\nText\n\n```\nCode\n```", TestName = "SeveralCodeBlocksStayAsTheyAre")]
+    [TestCase("  # Liste\r\n\r\n- [ ] Punkt  \r\n", "# Liste\n\n- [ ] Punkt", TestName = "LineEndingsAndSpacesAroundTheResultAreTidied")]
+    [TestCase(" \n ", "", TestName = "AnAnswerWithoutTextGivesNoResult")]
+    public void TheLabReadsTheResultFromTheAnswer(string answer, string expected)
+    {
+        Assert.That(BflResultText.Read(answer), Is.EqualTo(expected));
+    }
+}

app/Tests/BeyondFactsLab/BflResultTests.cs

@@ -0,0 +1,175 @@
+using AIStudio.Assistants.BeyondFactsLab;
+
+namespace AIStudio.Tests.BeyondFactsLab;
+
+/// <summary>
+/// Checks the results of the BeyondFacts Lab: how a draft becomes the confirmed version, and when a result is
+/// outdated.
+/// </summary>
+/// <remarks>
+/// A result is outdated as soon as the work state of any step is confirmed for the first time, confirmed anew, or
+/// withdrawn after the lab wrote it.
+/// </remarks>
+[TestFixture]
+public sealed class BflResultTests
+{
+    private static readonly DateTimeOffset NOW = new(2026, 11, 10, 9, 0, 0, TimeSpan.Zero);
+
+    private static readonly Dictionary<string, string> SECTIONS = new(StringComparer.Ordinal) { ["GOAL"] = "Informieren" };
+
+    [Test]
+    public void AConfirmationKeepsWhatTheDraftWasBuiltFrom()
+    {
+        var result = new BflResult { Draft = new BflResultVersion { Text = "Entwurf", WorkStateRevisions = { [BflStep.FRAMEWORK] = 2 } } };
+
+        result.Confirm("Bestätigt", NOW);
+
+        using (Assert.EnterMultipleScope())
+        {
+            Assert.That(result.Draft, Is.Null);
+            Assert.That(result.Confirmed!.Text, Is.EqualTo("Bestätigt"));
+            Assert.That(result.Confirmed.WorkStateRevisions, Is.EqualTo(new Dictionary<BflStep, int> { [BflStep.FRAMEWORK] = 2 }));
+            Assert.That(result.Confirmed.ChangedAtUtc, Is.EqualTo(NOW));
+        }
+    }
+
+    [Test]
+    public void AResultWithoutADraftCannotBeConfirmed()
+    {
+        Assert.Throws<InvalidOperationException>(() => new BflResult().Confirm("Text", NOW));
+    }
+
+    [Test]
+    public void EditingAConfirmedResultStartsADraftAndKeepsTheConfirmedVersion()
+    {
+        var result = new BflResult { Confirmed = new BflResultVersion { Text = "Bestätigt", WorkStateRevisions = { [BflStep.FRAMEWORK] = 1 } } };
+
+        result.Edit();
+
+        using (Assert.EnterMultipleScope())
+        {
+            Assert.That(result.Draft!.Text, Is.EqualTo("Bestätigt"));
+            Assert.That(result.Draft.WorkStateRevisions, Is.EqualTo(result.Confirmed.WorkStateRevisions));
+            Assert.That(result.Draft.WorkStateRevisions, Is.Not.SameAs(result.Confirmed.WorkStateRevisions));
+            Assert.That(result.Confirmed.Text, Is.EqualTo("Bestätigt"));
+        }
+    }
+
+    [Test]
+    public void EditingKeepsADraftWhichIsThereAlready()
+    {
+        var result = new BflResult
+        {
+            Draft = new BflResultVersion { Text = "Entwurf" },
+            Confirmed = new BflResultVersion { Text = "Bestätigt" },
+        };
+
+        result.Edit();
+
+        Assert.That(result.Draft!.Text, Is.EqualTo("Entwurf"));
+    }
+
+    [Test]
+    public void AResultFitsWhileTheWorkStatesStayAsTheyAre()
+    {
+        var workStates = new Dictionary<BflStep, BflWorkState>();
+        Confirm(workStates, BflStep.FRAMEWORK);
+        Confirm(workStates, BflStep.TEST_SITUATION);
+
+        var version = new BflResultVersion { WorkStateRevisions = new(BflStaleness.ConfirmedRevisionsOf(workStates)) };
+
+        Assert.That(BflStaleness.IsOutdated(version, workStates), Is.False);
+    }
+
+    [TestCase(Change.CONFIRMED_FOR_THE_FIRST_TIME, TestName = "AStepConfirmedForTheFirstTimeOutdatesAResult")]
+    [TestCase(Change.CONFIRMED_ANEW, TestName = "AStepConfirmedAnewOutdatesAResult")]
+    [TestCase(Change.WITHDRAWN, TestName = "AStepWithdrawnOutdatesAResult")]
+    [TestCase(Change.CONFIRMED_ANEW_IN_THE_LAST_STEP, TestName = "TheLastStepConfirmedAnewOutdatesAResult")]
+    public void AChangedWorkStateOutdatesAResult(Change change)
+    {
+        var workStates = new Dictionary<BflStep, BflWorkState>();
+        Confirm(workStates, BflStep.FRAMEWORK);
+        Confirm(workStates, BflStep.RESULTS);
+        var version = new BflResultVersion { WorkStateRevisions = new(BflStaleness.ConfirmedRevisionsOf(workStates)) };
+
+        switch (change)
+        {
+            case Change.CONFIRMED_FOR_THE_FIRST_TIME:
+                Confirm(workStates, BflStep.STRATEGY);
+                break;
+
+            case Change.CONFIRMED_ANEW:
+                Confirm(workStates, BflStep.FRAMEWORK);
+                break;
+
+            case Change.WITHDRAWN:
+                workStates[BflStep.FRAMEWORK].Withdraw();
+                break;
+
+            case Change.CONFIRMED_ANEW_IN_THE_LAST_STEP:
+                Confirm(workStates, BflStep.RESULTS);
+                break;
+        }
+
+        Assert.That(BflStaleness.IsOutdated(version, workStates), Is.True);
+    }
+
+    [Test]
+    public void ADraftOfAWorkStateDoesNotOutdateAResult()
+    {
+        var workStates = new Dictionary<BflStep, BflWorkState>();
+        Confirm(workStates, BflStep.FRAMEWORK);
+        var version = new BflResultVersion { WorkStateRevisions = new(BflStaleness.ConfirmedRevisionsOf(workStates)) };
+
+        workStates[BflStep.FRAMEWORK].Draft = new(SECTIONS);
+        workStates[BflStep.KNOWLEDGE] = new BflWorkState { Draft = new(SECTIONS) };
+
+        Assert.That(BflStaleness.IsOutdated(version, workStates), Is.False);
+    }
+
+    [Test]
+    public void TheConfirmedRevisionsNameEveryStepWithAConfirmedWorkState()
+    {
+        var workStates = new Dictionary<BflStep, BflWorkState>();
+        Confirm(workStates, BflStep.KNOWLEDGE);
+        Confirm(workStates, BflStep.RESULTS);
+        Confirm(workStates, BflStep.RESULTS);
+        workStates[BflStep.STRATEGY] = new BflWorkState { Draft = new(SECTIONS) };
+
+        Assert.That(BflStaleness.ConfirmedRevisionsOf(workStates), Is.EquivalentTo(new Dictionary<BflStep, int> { [BflStep.KNOWLEDGE] = 1, [BflStep.RESULTS] = 2 }));
+    }
+
+    [Test]
+    public void EveryResultHasAFileOfItsOwn()
+    {
+        Assert.That(BflResultKind.All.Select(kind => kind.FileName), Is.Unique);
+    }
+
+    [Test]
+    public void OnlyTheReflectionFolderIsPutTogetherWithoutAModel()
+    {
+        Assert.That(BflResultKind.All.Where(kind => !kind.IsWrittenByModel), Is.EqualTo(new[] { BflResultKind.REFLECTION_FOLDER }));
+    }
+
+    /// <summary>
+    /// What happens to the work states after the lab wrote a result.
+    /// </summary>
+    public enum Change
+    {
+        CONFIRMED_FOR_THE_FIRST_TIME,
+        CONFIRMED_ANEW,
+        WITHDRAWN,
+        CONFIRMED_ANEW_IN_THE_LAST_STEP,
+    }
+
+    private static void Confirm(Dictionary<BflStep, BflWorkState> workStates, BflStep step)
+    {
+        if (!workStates.TryGetValue(step, out var workState))
+        {
+            workState = new BflWorkState();
+            workStates[step] = workState;
+        }
+
+        workState.Confirm(SECTIONS, BflStaleness.UpstreamRevisionsOf(step, workStates), BflStaleness.FingerprintOf(new BflStepFormData()), NOW);
+    }
+}