Initial Commit

packages/media/audio/control-surface-schema/tests/round-trip.test.ts

@@ -0,0 +1,74 @@
+import { describe, expect, it } from "@suaveplan/testing/runner";
+import { CURRENT_SCHEMA_VERSION } from "../src/constants/constants.js";
+import type { ControlSurface } from "../src/types/control-surface.types.js";
+import { validateSurface } from "../src/validate/validate.js";
+import { walkSurface } from "../src/walk/walk.js";
+
+const fixture: ControlSurface = {
+    id: "round-trip",
+    name: "8-channel mixer",
+    version: CURRENT_SCHEMA_VERSION,
+    createdAt: 1700_000_000_000,
+    updatedAt: 1700_000_001_000,
+    skin: { id: "default", vars: { "--accent": "#0af" } },
+    root: {
+        type: "group",
+        id: "root",
+        layout: { kind: "stack", direction: "row", gap: 4 },
+        transform: { position: { x: 0, y: 0 } },
+        children: Array.from({ length: 8 }, (_, channel) => ({
+            type: "group",
+            id: `ch-${channel}`,
+            layout: { kind: "stack", direction: "column", gap: 2 },
+            transform: { position: { x: channel * 60, y: 0 } },
+            children: [
+                {
+                    type: "control",
+                    id: `ch-${channel}-vol`,
+                    kind: "slider-v",
+                    transform: { position: { x: 0, y: 0 } },
+                    range: { min: 0, max: 1, default: 0.75, units: "lin" },
+                    binding: {
+                        kind: "pluginParam",
+                        pluginId: "mixer",
+                        paramPath: `channels/${channel}/volume`,
+                        curve: "log",
+                    },
+                },
+                {
+                    type: "control",
+                    id: `ch-${channel}-mute`,
+                    kind: "button-latching",
+                    transform: { position: { x: 0, y: 80 } },
+                    binding: {
+                        kind: "midiOut",
+                        portId: "main",
+                        channel: 0,
+                        cc: 16 + channel,
+                    },
+                },
+            ],
+        })),
+    },
+};
+
+describe("round-trip — JSON → validate → walk → re-serialise", () => {
+    it("preserves every node through JSON.parse(JSON.stringify(...)) and re-validation", {
+        timeout: 5000,
+    }, () => {
+        const first = validateSurface(fixture);
+        expect(first.surface).toBeDefined();
+
+        const jsonString = JSON.stringify(first.surface);
+        const parsed = JSON.parse(jsonString);
+
+        const second = validateSurface(parsed);
+        expect(second.surface).toEqual(first.surface);
+
+        const ids: string[] = [];
+        walkSurface(second.surface!, (n) => ids.push(n.id));
+        // 1 root + 8 channel groups + 8 volume + 8 mute = 25
+        expect(ids.length).toBe(25);
+        expect(ids[0]).toBe("root");
+    });
+});