From 49d98656a665d67cfe2a0d206f68a306f5749009 Mon Sep 17 00:00:00 2001
From: Victor Giers <mail@victorgiers.com>
Date: Sat, 2 May 2026 03:48:11 +0200
Subject: [PATCH] auto-git:  [add] tests/domain/bundled-foliage.test.ts

---
 tests/domain/bundled-foliage.test.ts | 68 ++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 tests/domain/bundled-foliage.test.ts

diff --git a/tests/domain/bundled-foliage.test.ts b/tests/domain/bundled-foliage.test.ts
new file mode 100644
index 00000000..f17582a3
--- /dev/null
+++ b/tests/domain/bundled-foliage.test.ts
@@ -0,0 +1,68 @@
+import { describe, expect, it } from "vitest";
+
+import {
+  EXPECTED_BUNDLED_FOLIAGE_PROTOTYPE_COUNT,
+  groupBundledFoliageFiles,
+  validateBundledFoliageManifest
+} from "../../src/foliage/bundled-foliage";
+import {
+  BUNDLED_FOLIAGE_PROTOTYPES,
+  BUNDLED_FOLIAGE_RELATIVE_PATHS
+} from "../../src/foliage/bundled-foliage-manifest";
+
+describe("bundled foliage manifest", () => {
+  it("groups the copied 160 GLBs into 40 complete prototype LOD chains", () => {
+    const grouping = groupBundledFoliageFiles(
+      BUNDLED_FOLIAGE_RELATIVE_PATHS
+    );
+
+    expect(BUNDLED_FOLIAGE_RELATIVE_PATHS).toHaveLength(160);
+    expect(grouping.diagnostics).toEqual([]);
+    expect(grouping.groups).toHaveLength(
+      EXPECTED_BUNDLED_FOLIAGE_PROTOTYPE_COUNT
+    );
+    expect(
+      grouping.groups.every(
+        (group) =>
+          group.lods.map((lod) => lod.level).join(",") === "0,1,2,3"
+      )
+    ).toBe(true);
+  });
+
+  it("exposes a complete engine manifest with bundled LOD paths", () => {
+    expect(validateBundledFoliageManifest(BUNDLED_FOLIAGE_PROTOTYPES)).toEqual(
+      []
+    );
+    expect(BUNDLED_FOLIAGE_PROTOTYPES).toHaveLength(40);
+    expect(
+      BUNDLED_FOLIAGE_PROTOTYPES.every((prototype) =>
+        prototype.lods.every(
+          (lod) =>
+            lod.source === "bundled" &&
+            lod.bundledPath.startsWith("/foliage/") &&
+            lod.bundledPath.endsWith(`_LOD${lod.level}.glb`)
+        )
+      )
+    ).toBe(true);
+  });
+
+  it("reports duplicate, missing, and invalid filename groups", () => {
+    const grouping = groupBundledFoliageFiles([
+      "Grass/Foo/Foo_LOD0.glb",
+      "Other/Foo/Foo_LOD0.glb",
+      "Grass/Foo/Foo_LOD4.glb",
+      "Grass/Foo/Foo_low.glb"
+    ]);
+
+    expect(grouping.diagnostics).toEqual(
+      expect.arrayContaining([
+        expect.objectContaining({ code: "duplicate-foliage-lod" }),
+        expect.objectContaining({ code: "invalid-foliage-lod-level" }),
+        expect.objectContaining({ code: "invalid-foliage-filename" }),
+        expect.objectContaining({ code: "missing-foliage-lod", level: 1 }),
+        expect.objectContaining({ code: "missing-foliage-lod", level: 2 }),
+        expect.objectContaining({ code: "missing-foliage-lod", level: 3 })
+      ])
+    );
+  });
+});