test(stores): add state machine coverage

src/stores/user/__tests__/user-machine.helpers.test.ts

@@ -0,0 +1,51 @@
+import { describe, expect, it } from "vitest";
+
+import { toView } from "@/stores/user/user-machine.helpers";
+
+describe("toView", () => {
+  it("fills optional user fields with stable defaults", () => {
+    expect(toView({ id: "user-1", username: "Luna" })).toEqual({
+      id: "user-1",
+      username: "Luna",
+      email: "",
+      avatarUrl: "",
+      intimacy: 0,
+      dolBalance: 0,
+      relationshipStage: "",
+      currentMood: "",
+      isGuest: false,
+      isVip: false,
+      voiceMinutesRemaining: 0,
+    });
+  });
+
+  it("preserves provided user fields", () => {
+    expect(
+      toView({
+        id: "user-2",
+        username: "Elio",
+        email: "elio@example.com",
+        avatarUrl: "https://example.com/avatar.png",
+        intimacy: 42,
+        dolBalance: 12,
+        relationshipStage: "close_friend",
+        currentMood: "playful",
+        isGuest: true,
+        isVip: true,
+        voiceMinutesRemaining: 30,
+      }),
+    ).toEqual({
+      id: "user-2",
+      username: "Elio",
+      email: "elio@example.com",
+      avatarUrl: "https://example.com/avatar.png",
+      intimacy: 42,
+      dolBalance: 12,
+      relationshipStage: "close_friend",
+      currentMood: "playful",
+      isGuest: true,
+      isVip: true,
+      voiceMinutesRemaining: 30,
+    });
+  });
+});