Added tests which guard the JSON of visual briefings and model answers before source generation

app/Tests/Serialization/JsonTestRoots.VisualBriefing.cs

@@ -0,0 +1,87 @@
+using System.Text.Json;
+
+using AIStudio.Assistants.VisualBriefing;
+
+namespace AIStudio.Tests.Serialization;
+
+public static partial class JsonTestRoots
+{
+    /// <summary>
+    /// What the Visual Briefing assistant writes and reads again: the files of a briefing, and the canonical
+    /// JSON which it parses back from an exported briefing.
+    /// </summary>
+    public static IEnumerable<TestCaseData> VisualBriefingStored()
+    {
+        TestHost.PrepareStaticState();
+        var options = VisualBriefingJson.Persistence;
+
+        yield return Case(new(typeof(VisualBriefingManifest), options));
+        yield return Case(new(typeof(VisualBriefingEvidenceArtifact), options));
+        yield return Case(new(typeof(VisualBriefingPlanArtifact), options));
+        yield return Case(new(typeof(VisualBriefingContentArtifact), options));
+        yield return Case(new(typeof(VisualBriefingPresentationArtifact), options));
+        yield return Case(new(typeof(VisualBriefingBuildRecord), options));
+
+        // The briefing selected last, which gets written without options of its own:
+        yield return Case(new(typeof(Guid?), JsonSerializerOptions.Default), "selected briefing");
+
+        //
+        // The canonical JSON which gets read back: the header and the data of an exported briefing, the version
+        // of AI Studio inside its runtime script, and the copy of a build which the progress view shows:
+        //
+        var canonical = VisualBriefingJson.Canonical;
+        yield return Case(new(typeof(VisualBriefingExportManifest), canonical));
+        yield return Case(new(typeof(Dictionary<string, JsonElement>), canonical), "data");
+        yield return Case(new(typeof(string), canonical), "version");
+        yield return Case(new(typeof(VisualBriefingBuildRecord), canonical), "progress");
+    }
+
+    /// <summary>
+    /// What the Visual Briefing assistant writes as canonical JSON without reading it again: what goes into the
+    /// hashes of a briefing, into the data of a briefing, and into the prompts of its stages.
+    /// </summary>
+    public static IEnumerable<TestCaseData> VisualBriefingHashed()
+    {
+        TestHost.PrepareStaticState();
+        var options = VisualBriefingJson.Canonical;
+
+        // The payload hashes of the artifacts:
+        yield return Case(new(typeof(List<VisualBriefingEvidenceFact>), options));
+        yield return Case(new(typeof(List<VisualBriefingEvidenceMetric>), options));
+        yield return Case(new(typeof(List<VisualBriefingEvidenceTable>), options));
+        yield return Case(new(typeof(List<VisualBriefingSourceCoverage>), options));
+        yield return Case(new(typeof(List<VisualBriefingAssetPlanItem>), options));
+        yield return Case(new(typeof(List<VisualBriefingPlanSection>), options));
+        yield return Case(new(typeof(List<VisualBriefingSlotValue>), options));
+        yield return Case(new(typeof(List<VisualBriefingChartSpec>), options));
+        yield return Case(new(typeof(List<VisualBriefingControlSpec>), options));
+        yield return Case(new(typeof(List<VisualBriefingFormulaSpec>), options));
+        yield return Case(new(typeof(Dictionary<string, string>), options));
+        yield return Case(new(typeof(Dictionary<string, List<string>>), options));
+        yield return Case(new(typeof(VisualBriefingLayoutNode), options));
+
+        // The data of a briefing, and the IDs the prompts list:
+        yield return Case(new(typeof(JsonElement), options));
+        yield return Case(new(typeof(string[]), options));
+
+        // The position inside a repeated element, which the data bindings write without options of their own:
+        yield return Case(new(typeof(int), JsonSerializerOptions.Default), "index");
+
+        // The diagnostics a user copies to the clipboard:
+        yield return Case(new(typeof(VisualBriefingOperationDiagnostics), VisualBriefingJson.Persistence));
+    }
+
+    /// <summary>
+    /// The answers of the models which build a visual briefing.
+    /// </summary>
+    public static IEnumerable<TestCaseData> VisualBriefingAnswers()
+    {
+        TestHost.PrepareStaticState();
+        var options = VisualBriefingJson.Canonical;
+
+        yield return Case(new(typeof(VisualBriefingEvidenceResponse), options));
+        yield return Case(new(typeof(VisualBriefingPlanResponse), options));
+        yield return Case(new(typeof(VisualBriefingContentResponse), options));
+        yield return Case(new(typeof(VisualBriefingDesignResponse), options));
+    }
+}