tests/api/projects.spec.ts

@@ -1,7 +1,26 @@
 import "dotenv/config";
-import { describe, it, expect } from "vitest";
-import { POST as createProject } from "@/app/api/projects/route";
-import { GET as getProjectBySlug } from "@/app/api/projects/[slug]/route";
+import { describe, it, expect, vi } from "vitest";
+
+// PrismaClient를 실제 DB 대신 메모리 기반 저장소를 사용하는 목으로 대체한다.
+// 이렇게 하면 CI/로컬 어디에서도 DATABASE_URL 이나 실제 DB 없이 API 테스트를 실행할 수 있다.
+const inMemoryProjects: any[] = [];
+
+vi.mock("@/generated/prisma/client", () => {
+  class PrismaClientMock {
+    project = {
+      create: async ({ data }: any) => {
+        const project = { id: inMemoryProjects.length + 1, ...data };
+        inMemoryProjects.push(project);
+        return project;
+      },
+      findUnique: async ({ where: { slug } }: any) => {
+        return inMemoryProjects.find((p) => p.slug === slug) ?? null;
+      },
+    };
+  }
+
+  return { PrismaClient: PrismaClientMock };
+});
 
 const BASE_URL = "http://localhost";
 
@@ -19,6 +38,8 @@ describe("/api/projects", () => {
       ],
     };
 
+    const { POST: createProject } = await import("@/app/api/projects/route");
+
     const createResponse = await createProject(
       new Request(`${BASE_URL}/api/projects`, {
         method: "POST",
@@ -37,6 +58,8 @@ describe("/api/projects", () => {
     expect(created.title).toBe(payload.title);
     expect(created.slug).toBe(payload.slug);
 
+    const { GET: getProjectBySlug } = await import("@/app/api/projects/[slug]/route");
+
     const getResponse = await getProjectBySlug(
       new Request(`${BASE_URL}/api/projects/${payload.slug}`),
       { params: { slug: payload.slug } } as any,