aws mock s3 putObjectTagging "Not Working" ISSUE / Bug

[hanoj-budime]

• aws mock s3 putObjectTagging "Not Working" ISSUE / Bug #266

! important

S3 putObjectTagging mock not working, why any ideas..... ???

---

look.test.js

const AWS = require("aws-sdk-mock");

describe('s3 putObjectTagging', () => {
...
    beforeAll(async () => {
         // Arrange
        AWS.mock("S3", "putObjectTagging", jest.fn((params, callback) => {  // Not working
          callback(null, {});
        }));
      ....
    });
    ....
    // Assert
    ....
});

---

package.json

"dependencies": {
    "aws-sdk-mock": "^5.6.2", // aws-sdk mock
    "jest": "^27.5.1",
    "jest-junit": "^13.0.0",
    "jest-runner-eslint": "^1.0.0"
  }

[nelsonic]

@HanojHanu what are you seeing when you attempt to run this code? (what is the output?)

[hanoj-budime]

@HanojHanu what are you seeing when you attempt to run this code? (what is the output?)

Not Mocking my code in Jest using Nodejs

• Failed to tag the requested S3 Object
• Unhandled error. (NoSuchBucket: The specified bucket does not exist

---

Terminal

Test suite failed to run

    Error [ERR_UNHANDLED_ERROR]: Unhandled error. (NoSuchBucket: The specified bucket does not exist
      at Request.extractError (node_modules/aws-sdk/lib/services/s3.js:710:35)
      at Request.callListeners (node_modules/aws-sdk/lib/sequential_executor.js:106:20)
      at Request.emit (node_modules/aws-sdk/lib/sequential_executor.js:78:10)
      at Request.emit (node_modules/aws-sdk/lib/request.js:686:14)
      at Request.transition (node_modules/aws-sdk/lib/request.js:22:10)
      at AcceptorStateMachine.runTo (node_modules/aws-sdk/lib/state_machine.js:14:12)
      at node_modules/aws-sdk/lib/state_machine.js:26:10
      at Request.<anonymous> (node_modules/aws-sdk/lib/request.js:38:9)
      at Request.<anonymous> (node_modules/aws-sdk/lib/request.js:688:12)
      at Request.callListeners (node_modules/aws-sdk/lib/sequential_executor.js:116:18) {
        code: 'NoSuchBucket',
        region: null,
        time: 2022-03-24T04:04:56.504Z,
        requestId: 'AASKZ3Q97T6P1XCV',
        extendedRequestId: 'wId6kZvnmgMk9LIL+Ll2iVGjqKHiaOsLzgDPdzyXnwbN1cY1po1+wGLy7BLWYcDOrcquauHxN/s=',
        cfId: undefined,
        statusCode: 404,
        retryable: false,
        retryDelay: 92.723206311658
      })
      at Request.<anonymous> (node_modules/aws-sdk/lib/request.js:590:14)
      at Request.callListeners (node_modules/aws-sdk/lib/sequential_executor.js:106:20)
      at Request.emit (node_modules/aws-sdk/lib/sequential_executor.js:78:10)
      at Request.emit (node_modules/aws-sdk/lib/request.js:686:14)
      at Request.transition (node_modules/aws-sdk/lib/request.js:22:10)
      at AcceptorStateMachine.runTo (node_modules/aws-sdk/lib/state_machine.js:14:12)
      at node_modules/aws-sdk/lib/state_machine.js:26:10
      at Request.<anonymous> (node_modules/aws-sdk/lib/request.js:38:9)

[hanoj-budime]

@nelsonic Any updates on this issue ?

[hanoj-budime]

@nelsonic @thomaux

[nelsonic]

@HanojHanu the stack trace you've shared above is for aws-sdk ... You're getting an error when using the actual SDK.

[thomaux]

Hey @HanojHanu, this might be related to how your actual code is initialised. For example, if S3 is initialised at the top of your module, aws-sdk-mock cannot mock it. Try adding the following to your tests:

beforeEach(() => {
	// import the aws-sdk after the resetModules, but before each test.
	jest.resetModules();
	AWSMock.setSDKInstance(require('aws-sdk'));
        AWSMock.mock("S3", "putObjectTagging", jest.fn((params, callback) => {  // Not working
          callback(null, {});
        }));
});

afterEach(() => {
    AWSMock.restore();
});

[hanoj-budime]

Hey @HanojHanu, this might be related to how your actual code is initialised. For example, if S3 is initialised at the top of your module, aws-sdk-mock cannot mock it. Try adding the following to your tests:

beforeEach(() => {
	// import the aws-sdk after the resetModules, but before each test.
	jest.resetModules();
	AWSMock.setSDKInstance(require('aws-sdk'));
        AWSMock.mock("S3", "putObjectTagging", jest.fn((params, callback) => {  // Not working
          callback(null, {});
        }));
});

afterEach(() => {
    AWSMock.restore();
});

Thanks @thomaux, I'll try this.

I'll update here..

[hanoj-budime]

tried the same way, what you suggested. @thomaux
But still the same error.
#266 (comment)

[hanoj-budime]

https://stackblitz.com/edit/node-as6ark?file=index.test.js

@thomaux , @nelsonic

[thomaux]

Thanks @HanojHanu that's useful. I'll take some time later this week to take a look at what's going wrong. From the sources I can tell that S3 is being initialised at the top of the file, which is most likely causing the issue.

[hanoj-budime]

Any Fix?