Version 1.0.0 breaks Typescript/Mocha Workflow

Checklist

• I have read Caveats documentation and didn’t find a solution for this problem there.

Bug description

We use this library in our tests using Typescript and Mocha as a test runner. We recently wanted to update to version 1.0.0, however, the newly added Jest dependency breaks compatibility with Mocha.

Reproduction

Doing

yarn init
yarn add -D typescript aws-sdk-client-mock @types/jest @types/mocha ts-jest
echo "import {mockClient} from 'aws-sdk-client-mock';" >> index.ts
node_modules/typescript/bin/tsc index.ts

will result in a lot of errors of the form

node_modules/@types/mocha/index.d.ts:2642:13 - error TS2403: Subsequent variable declarations must have the same type.  Variable 'beforeEach' must be of type 'Lifecycle', but here has type 'HookFunction'.

2642 declare var beforeEach: Mocha.HookFunction;
                 ~~~~~~~~~~

  node_modules/@types/jest/index.d.ts:34:13
    34 declare var beforeEach: jest.Lifecycle;
                   ~~~~~~~~~~
    'beforeEach' was also declared here.

Environment

• Node version: v16.13.2
• Testing lib and version: Mocha 10
• Typescript version: 4.7.4
• AWS SDK v3 Client mock version: 1.0.0
• AWS JS SDK libs and versions: doesn’t matter

[m-radzikowski]

@hzzzln, @rbargholz - please check out the 2.0.0-beta.1 release - it includes @types/jest as a dependency which should eliminate those errors without you having to install it yourself.

[timvlaer]

Thanks for the fix. I can confirm that v2.0.0-beta.2 did fix this issue for me.