test: Add mock for execa module

- Create CommonJS mock implementation of execa
- Add execa to moduleNameMapper in Jest config
- Resolves 'Cannot use import statement outside a module' error for execa

src/__mocks__/execa.js

@@ -0,0 +1,13 @@
+// Mock implementation of execa
+module.exports = {
+	execa: jest.fn().mockResolvedValue({
+		stdout: "",
+		stderr: "",
+		exitCode: 0,
+	}),
+	execaSync: jest.fn().mockReturnValue({
+		stdout: "",
+		stderr: "",
+		exitCode: 0,
+	}),
+}

src/jest.config.mjs

@@ -38,9 +38,10 @@ export default {
 		"^os-name$": "<rootDir>/__mocks__/os-name.js",
 		"^strip-bom$": "<rootDir>/__mocks__/strip-bom.js",
 		"^kontroll$": "<rootDir>/__mocks__/kontroll.js",
+		"^execa$": "<rootDir>/__mocks__/execa.js",
 	},
 	transformIgnorePatterns: [
-		"node_modules/(?!(@modelcontextprotocol|delay|p-wait-for|serialize-error|strip-ansi|default-shell|os-name|strip-bom|kontroll)/)",
+		"node_modules/(?!(@modelcontextprotocol|delay|p-wait-for|serialize-error|strip-ansi|default-shell|os-name|strip-bom|kontroll|execa)/)",
 	],
 	roots: ["<rootDir>"],
 	modulePathIgnorePatterns: ["dist", "out"],

src/services/marketplace/__tests__/MetadataScanner.test.ts

@@ -73,6 +73,8 @@ describe("MetadataScanner", () => {
 				const normalizedBasePath = normalizePath(mockBasePath)
 				const normalizedComponentPath = normalizePath(path.join(mockBasePath, "component1"))
 
+				process.stdout.write(`\nMock readdir called with path: ${normalizedP}\n`)
+
 				if (normalizedP === normalizedBasePath) {
 					// For the base path, return only the component directory
 					const baseDirents = [componentDirDirent]
@@ -87,15 +89,16 @@ describe("MetadataScanner", () => {
 				}
 			})
 
-			mockedFs.readFile.mockResolvedValue(
-				Buffer.from(`
+			mockedFs.readFile.mockImplementation(async (p: string | Buffer | URL | FileHandle) => {
+				process.stdout.write(`\nMock readFile called with path: ${String(p)}\n`)
+				return Buffer.from(`
 name: Test Component
 description: A test component
 type: mcp
 version: 1.0.0
 sourceUrl: https://example.com/component1
-`),
-			)
+`)
+			})
 
 			const items = await metadataScanner.scanDirectory(mockBasePath, mockRepoUrl)