feat(amplify-util-mock): import custom port from mock.json (#10978)

chore: fix lint

Co-authored-by: Takahiro Suzuki <tkasuz@amazon.co.jp>

packages/amplify-util-mock/src/__tests__/api/api.test.ts

@@ -1,11 +1,12 @@
 import * as fs from 'fs-extra';
 import * as path from 'path';
-import { $TSContext, AmplifyError, pathManager } from '@aws-amplify/amplify-cli-core';
+import { $TSContext, AmplifyError, JSONUtilities, pathManager } from '@aws-amplify/amplify-cli-core';
 import { APITest } from '../../api/api';
 import * as lambdaInvoke from '../../api/lambda-invoke';
 import { getMockSearchableTriggerDirectory } from '../../utils';
 import { ConfigOverrideManager } from '../../utils/config-override';
 import { run } from '../../commands/mock/api';
+import { start } from '../../api';
 
 jest.mock('@aws-amplify/amplify-cli-core', () => ({
   ...(jest.requireActual('@aws-amplify/amplify-cli-core') as Record<string, unknown>),
@@ -139,4 +140,20 @@ describe('Test Mock API methods', () => {
     await run(mockContext);
     await expect(mockContext.print.error).toHaveBeenCalledWith('Failed to start API Mocking.');
   });
+
+  it('attempts to set custom port correctly', async () => {
+    const GRAPHQL_PORT = 8081;
+    const mockContext = {
+      amplify: {
+        getEnvInfo: jest.fn().mockReturnValue({ projectPath: mockProjectRoot }),
+        pathManager: {
+          getGitIgnoreFilePath: jest.fn(),
+        },
+      },
+    } as unknown as $TSContext;
+    const startMock = jest.spyOn(APITest.prototype, 'start').mockResolvedValueOnce();
+    jest.spyOn(JSONUtilities, 'readJson').mockReturnValue({ graphqlPort: GRAPHQL_PORT });
+    await start(mockContext);
+    expect(startMock.mock.calls[0][1]).toBe(GRAPHQL_PORT);
+  });
 });

packages/amplify-util-mock/src/api/index.ts

@@ -1,12 +1,14 @@
 import { APITest } from './api';
 import { addMockDataToGitIgnore, addMockAPIResourcesToGitIgnore } from '../utils';
+import { getMockConfig } from '../utils/mock-config-file';
 
 export async function start(context) {
   const testApi = new APITest();
   try {
     addMockDataToGitIgnore(context);
     addMockAPIResourcesToGitIgnore(context);
-    await testApi.start(context);
+    const mockConfig = await getMockConfig(context);
+    await testApi.start(context, mockConfig.graphqlPort, mockConfig.graphqlPort);
   } catch (e) {
     console.log(e);
     // Sending term signal so we clean up after ourselves