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You need to change

specifying

The AWS instance/object in your test scope is different from the AWS instance/object being used in your setToken method.

aws-sdk-mock mocks this instance

Due to transpiling, code written in TypeScript or ES6 may not correctly mock because the aws-sdk object created within aws-sdk-mock will not be equal to the object created within the code to test.

Also require will return a new instance.

In essence you are mocking an instance in your test while your actual code is using another instance that has not been mocked.

You could modify your code to allow you to optionally inject the desired AWS instances to use eg

Solved this issue by installing brew and then doing brew install watchman on my mac.

The problem is in your command. Instead of -allow-dirty, it should be --allow-dirty (two leading dashes).

try to update "@angular-builders/jest": "7.4.2" it looks outdated

@angular-builders/jest is currently at v 8.2.0.

E.g.:

It looks like Babel is yet not configured to transpile your code properly.

Given you're using an es2015 + React JSX syntax, the quick way would consist of installing Babel's ES2015 preset and React preset as dev dependencies and configure your .babelrc file to use them:

You want the multiset operations provided by collections.Counter:

I do not need any extra custom vertex properties nor do I need to modify the graph after creating it.

Well, maybe not in your mind, but since the vector index no longer "doubles" as vertex id, you want somewhere to attach these numbers to the vertex descriptors.

This happens to be your reason to require/desire a property. I'd suggest a internal property if you want the algorithms also automatically know how to use that number to identify your indices.

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