chore: add command to e2e test changed packages

[AllanZhengYP]

The change add a command yarn test:e2e to the project root. The command will run end-to-end test to all the changed packages since the last release. This command requires existing resources exists within the test account.

Purpose:

CI pipeline can run e2e test against the changed packages.

Prerequesition:

The test account contains a CF stack called IntegTestResourcesStack which includes several resources required for conducting E2E test.

Test Logs:

yarn test:e2e                                                                                                                                                                         ✔  12.16.2 ⬢ 
yarn run v1.22.4
$ node ./tests/e2e/index.js
packages to run e2e test:
/Users/zheallan/workspace/aws-sdk-js-v3/clients/client-cognito-identity
/Users/zheallan/workspace/aws-sdk-js-v3/clients/client-s3

lerna notice cli v3.22.1
lerna info versioning independent
lerna notice filter including "{@aws-sdk/client-cognito-identity,@aws-sdk/client-s3,}"
lerna info filter [ '{@aws-sdk/client-cognito-identity,@aws-sdk/client-s3,}' ]
lerna info Executing command in 2 packages: "yarn run test:e2e"
lerna info run Ran npm script 'test:e2e' in '@aws-sdk/client-cognito-identity' in 14.2s:
$ mocha **/cjs/**/*.ispec.js && karma start karma.conf.js


  @aws-sdk/client-cognito-identity
    ✓ should successfully fetch Id and get credentials (227ms)


  1 passing (236ms)

ℹ ｢wdm｣: Compiled successfully.
ℹ ｢wdm｣: Compiling...
ℹ ｢wdm｣:    183 modules
ℹ ｢wdm｣: Compiled successfully.
Firefox 68.0 (Mac OS 10.14): Executed 1 of 1 SUCCESS (0.92 secs / 0.927 secs)
Chrome Headless 83.0.4103.116 (Mac OS 10.14.6): Executed 1 of 1 SUCCESS (0.233 secs / 0.227 secs)
TOTAL: 2 SUCCESS
lerna info run Ran npm script 'test:e2e' in '@aws-sdk/client-s3' in 35.3s:
$ mocha **/cjs/**/*.ispec.js && karma start karma.conf.js


  @aws-sdk/client-s3
    PutObject
      ✓ should succeed with Node.js readable stream body (291ms)
    GetObject
      ✓ should succeed with valid body payload (1597ms)
    ListObjects
      ✓ should succeed with valid bucket (126ms)
      ✓ should throw with invalid bucket (132ms)
    MultipartUpload
      ✓ should successfully create, upload list and complete (343ms)
      ✓ should successfully create, abort, and list upload (109ms)


  6 passing (3s)

ℹ ｢wdm｣: Compiled successfully.
ℹ ｢wdm｣: Compiling...
ℹ ｢wdm｣:    325 modules
ℹ ｢wdm｣: Compiled successfully.
Chrome Headless 83.0.4103.116 (Mac OS 10.14.6): Executed 8 of 8 SUCCESS (7.781 secs / 5.936 secs)
Firefox 68.0 (Mac OS 10.14): Executed 8 of 8 SUCCESS (8.403 secs / 7.315 secs)
TOTAL: 16 SUCCESS
lerna success run Ran npm script 'test:e2e' in 2 packages in 49.5s:
lerna success - @aws-sdk/client-cognito-identity
lerna success - @aws-sdk/client-s3
✨  Done in 62.18s.

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[codecov-commenter]

Codecov Report

Merging #1359 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1359   +/-   ##
=======================================
  Coverage   79.00%   79.00%           
=======================================
  Files         287      287           
  Lines       11112    11112           
  Branches     2350     2350           
=======================================
  Hits         8779     8779           
  Misses       2333     2333           

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