test(chase): assert default setup difficulty is normal

Made-with: Cursor

tests/stages/page_chase.test.ts

@@ -131,4 +131,33 @@ describe("chase stage skeleton", () => {
     expect(newRound.mock.calls[0][1]).toBe("easy");
     expect(newRound.mock.calls[1][1]).toBe("easy");
   });
+
+  it("uses normal as default difficulty", () => {
+    const newRound = vi.fn();
+    const getState = vi.fn().mockReturnValue({
+      turn: 0,
+      snapshot: {
+        status: "playing",
+        thiefNodeId: "A",
+        guardNodeId: "B",
+        exitNodeId: "B",
+        graph: {
+          nodes: {
+            A: { id: "A", q: 0, r: 0, neighbors: ["B"] },
+            B: { id: "B", q: 1, r: 0, neighbors: ["A"] },
+          },
+          edgeList: [["A", "B"]],
+        },
+      },
+    });
+    const scene = new ChaseScene({
+      model: { getState, moveThief: vi.fn(), newRound } as any,
+    });
+    (scene as any).hudText = new Text({ text: "" });
+    (scene as any).setupText = new Text({ text: "" });
+    (scene as any).setSeedInput("1001");
+
+    (scene as any).startGame();
+    expect(newRound).toHaveBeenCalledWith(1001, "normal");
+  });
 });