chore: add integration test script to project root

Author: AllanZhengYP

jest.config.integ.js

@@ -0,0 +1,8 @@
+const base = require("./jest.config.base.js");
+
+module.exports = {
+  ...base,
+  projects: ["<rootDir>/clients/*/jest.integ.config.js"],
+  testPathIgnorePatterns: ["/node_modules/"],
+  coveragePathIgnorePatterns: ["/node_modules/", "/__fixtures__/"]
+};

package.json

@@ -17,7 +17,7 @@
     "pretest:all": "yarn build:all",
     "test:all": "jest --coverage --passWithNoTests && lerna run test --scope @aws-sdk/fetch-http-handler --scope @aws-sdk/hash-blob-browser",
     "test:functional": "jest --config tests/functional/jest.config.js --passWithNoTests",
-    "test:integration": "cucumber-js --fail-fast",
+    "test:integration": "cucumber-js --fail-fast && jest --config jest.config.integ.js --passWithNoTests",
     "test:protocols": "yarn build:protocols && lerna run test --scope '@aws-sdk/aws-*'"
   },
   "repository": {