Simple CDK Testing Failing-CodePudding

this is my set up //bin

#!/usr/bin/env node
import * as cdk from 'aws-cdk-lib';
import {Testing} from '../lib/index';

const app = new cdk.App();
new Testing(app, 'Testing');

//lib

import {Duration, Stack, StackProps} from 'aws-cdk-lib'
export class Testing extends Stack {

  constructor(scope: Construct, id: string, props?: StackProps) {
    super(scope, id, props);

    // Define construct contents here

    // example resource
    const queue = new sqs.Queue(this, 'TestingQueue', {
      visibilityTimeout: Duration.seconds(300)
    });
  }
}

//test

import {Stack} from 'aws-cdk-lib/core';
import sqs = require ('../lib/index');
import'@aws-cdk/assert/jest'
test('SQS Queue Created', () => {
    const stack = new Stack();
    new sqs.Testing(stack, 'sqs');
    expect(stack).toHaveResource('AWS::SQS::Queue')
});

//npm-package

  "devDependencies": {
    "@types/jest": "^26.0.10",
    "@types/node": "10.17.27",
    "aws-cdk-lib": "2.1.0",
    "constructs": "^10.0.0",
    "jest": "^26.4.2",
    "ts-jest": "^26.2.0",
    "typescript": "~3.9.7"
  },
  "peerDependencies": {
    "@aws-cdk/assert": "^2.1.0",
    "aws-cdk-lib": "2.1.0",
    "constructs": "^10.0.0"
  },
  "jest": {
    "moduleFileExtensions": [
      "js"
    ]
  }

I get this when I run: npm run build; npm run test. None of 0 resources matches resource 'AWS::SQS::Queue' with { "$anything": true }.

I don't understand??? This should be straight forward. I can see the resource in cdk.out, the stack synthesisez, the stack deploys.

It only happens with fine grained assertions. The snapshot works.

CodePudding user response：

You are asserting on the empty stack. Assert on Testing instead.

test('SQS Queue Created', () => {
    const stack = new Stack();  // stack is empty, has no queue
    const iHaveAQueue = new sqs.Testing(stack, 'sqs');
    expect(stack).toHaveResource('AWS::SQS::Queue')  // will fail
    
    expect(iHaveAQueue).toHaveResource('AWS::SQS::Queue') // will pass
});