test: Add integration tests for Google Researcher MCP Server

- Add comprehensive integration tests to verify Google Researcher MCP Server loading
- Test local fallback functionality with real data
- Verify parameter configuration and installation methods
- Confirm item retrieval by ID works correctly

All integration tests passing, confirming the implementation works as expected.

src/services/marketplace/__tests__/google-researcher-integration.spec.ts

@@ -0,0 +1,94 @@
+// Integration test for Google Researcher MCP Server
+// npx vitest services/marketplace/__tests__/google-researcher-integration.spec.ts
+
+import { RemoteConfigLoader } from "../RemoteConfigLoader"
+import axios from "axios"
+
+// Mock axios to simulate remote API failure
+vi.mock("axios")
+const mockedAxios = axios as any
+
+// Mock the cloud config
+vi.mock("@roo-code/cloud", () => ({
+	getRooCodeApiUrl: () => "https://test.api.com",
+}))
+
+describe("Google Researcher MCP Server Integration", () => {
+	let loader: RemoteConfigLoader
+
+	beforeEach(() => {
+		loader = new RemoteConfigLoader()
+		vi.clearAllMocks()
+		loader.clearCache()
+	})
+
+	it("should load Google Researcher MCP Server from local data when remote fails", async () => {
+		// Mock remote API to fail, triggering local fallback
+		mockedAxios.get.mockImplementation((url: string) => {
+			if (url.includes("/modes")) {
+				return Promise.resolve({ data: "items: []" })
+			}
+			if (url.includes("/mcps")) {
+				return Promise.reject(new Error("Remote API unavailable"))
+			}
+			return Promise.reject(new Error("Unknown URL"))
+		})
+
+		// Load all items - should fallback to local data
+		const items = await loader.loadAllItems()
+
+		// Should contain at least the Google Researcher MCP
+		const googleResearcherMcp = items.find((item) => item.type === "mcp" && item.id === "google-researcher-mcp")
+
+		expect(googleResearcherMcp).toBeDefined()
+		expect(googleResearcherMcp?.name).toBe("Google Researcher MCP Server")
+		expect(googleResearcherMcp?.author).toBe("Zohar Babin")
+
+		if (googleResearcherMcp?.type === "mcp") {
+			expect(googleResearcherMcp.url).toBe("https://github.com/zoharbabin/google-research-mcp")
+			expect(googleResearcherMcp.tags).toContain("research")
+			expect(googleResearcherMcp.tags).toContain("google")
+			expect(googleResearcherMcp.tags).toContain("search")
+
+			// Check parameters
+			expect(googleResearcherMcp.parameters).toBeDefined()
+			expect(googleResearcherMcp.parameters).toHaveLength(3)
+
+			const apiKeyParam = googleResearcherMcp.parameters?.find((p) => p.key === "google_search_api_key")
+			expect(apiKeyParam).toBeDefined()
+			expect(apiKeyParam?.name).toBe("Google Custom Search API Key")
+
+			// Check installation methods
+			expect(Array.isArray(googleResearcherMcp.content)).toBe(true)
+			const methods = googleResearcherMcp.content as any[]
+			expect(methods.length).toBeGreaterThan(0)
+
+			const stdioMethod = methods.find((m) => m.name.includes("STDIO"))
+			expect(stdioMethod).toBeDefined()
+			expect(stdioMethod?.content).toContain("google-researcher")
+			expect(stdioMethod?.content).toContain("npx")
+		}
+	})
+
+	it("should be able to retrieve Google Researcher MCP by ID", async () => {
+		// Mock remote API to fail
+		mockedAxios.get.mockImplementation((url: string) => {
+			if (url.includes("/modes")) {
+				return Promise.resolve({ data: "items: []" })
+			}
+			if (url.includes("/mcps")) {
+				return Promise.reject(new Error("Remote API unavailable"))
+			}
+			return Promise.reject(new Error("Unknown URL"))
+		})
+
+		// Get specific item by ID
+		const item = await loader.getItem("google-researcher-mcp", "mcp")
+
+		expect(item).not.toBeNull()
+		expect(item?.id).toBe("google-researcher-mcp")
+		expect(item?.name).toBe("Google Researcher MCP Server")
+		expect(item?.description).toContain("Google Search")
+		expect(item?.description).toContain("research")
+	})
+})