feat(ai-character): 커뮤니티 게시글 관리 기능 구현

src/features/community-posts/tests/community-price-validation.test.tsx

@@ -0,0 +1,65 @@
+import { fireEvent, render, screen, waitFor } from "@testing-library/react";
+import { expect, test, vi } from "vitest";
+
+import { CommunityPostForm } from "@/features/community-posts/components/CommunityPostForm";
+import { formatCommunityPostPrice, parseCommunityPostPrice } from "@/features/community-posts/components/community-post-form-helpers";
+import type { ApiClient, ApiRequestOptions } from "@/shared/api/client";
+
+type CapturedRequest = {
+  readonly body?: BodyInit | null;
+  readonly method?: string;
+  readonly path: string;
+};
+
+function createClient(requests: CapturedRequest[]): ApiClient {
+  return {
+    async request<Data>(options: ApiRequestOptions<Data>): Promise<Data> {
+      requests.push({ body: options.body, method: options.method, path: options.path });
+      return options.responseSchema.parse(null);
+    },
+  };
+}
+
+function renderForm(requests: CapturedRequest[]) {
+  const onCreated = vi.fn();
+  render(<CommunityPostForm apiClient={createClient(requests)} characterId="101" createCropSource={(file) => Promise.resolve({ file, height: 600, previewUrl: "blob:post", width: 800 })} onCreated={onCreated} />);
+
+  return onCreated;
+}
+
+async function submitWithPrice(value: string, requests: CapturedRequest[]) {
+  fireEvent.change(screen.getByLabelText("내용"), { target: { value: "가격 검증 게시글" } });
+  fireEvent.change(screen.getByLabelText("가격"), { target: { value } });
+  fireEvent.click(screen.getByRole("button", { name: "생성" }));
+  await screen.findByText("가격은 0 이상 99,999 이하 정수 캔으로 입력하세요.");
+  expect(requests.filter((request) => request.method === "POST")).toHaveLength(0);
+}
+
+test.each(["-1", "1.5"])("Community price keeps invalid raw input %s and blocks submit", async (value) => {
+  const requests: CapturedRequest[] = [];
+  const onCreated = renderForm(requests);
+
+  await submitWithPrice(value, requests);
+
+  expect(screen.getByLabelText("가격")).toHaveValue(value);
+  expect(onCreated).not.toHaveBeenCalled();
+});
+
+test.each(["0", "99,999캔"])("Community price allows boundary input %s", async (value) => {
+  const requests: CapturedRequest[] = [];
+  const onCreated = renderForm(requests);
+
+  fireEvent.change(screen.getByLabelText("내용"), { target: { value: "가격 경계 게시글" } });
+  fireEvent.change(screen.getByLabelText("가격"), { target: { value } });
+  fireEvent.click(screen.getByRole("button", { name: "생성" }));
+
+  await waitFor(() => expect(onCreated).toHaveBeenCalledTimes(1));
+  expect(requests.filter((request) => request.method === "POST")).toHaveLength(1);
+});
+
+test("Community price parser rejects negative and decimal raw input", () => {
+  expect(parseCommunityPostPrice("-1")).toBeNull();
+  expect(parseCommunityPostPrice("1.5")).toBeNull();
+  expect(formatCommunityPostPrice("-1")).toBe("-1");
+  expect(formatCommunityPostPrice("1.5")).toBe("1.5");
+});