Cypress - plugin import error

[andrejsmogrovic]

After adding the plugin to the cypress: const chai = require('chai') const chaiResponseValidator = require('chai-openapi-response-validator'); chai.use(chaiResponseValidator('data.json'));

I got an error:

Object.setPrototypeOf: expected an object or null, got undefined

  137 | 
  138 |     // This ensures `util.promisify` works as it does for native `fs.read`.
> 139 |     if (Object.setPrototypeOf) Object.setPrototypeOf(read, fs$read)
      | ^
  140 |     return read
  141 |   })(fs.read)
  142 |```

[rwalle61]

Thanks @andrejsmogrovic, would you mind posting the stack trace too please?

Does the plugin work outside of cypress for you?

[andrejsmogrovic]

Yes, It works outside the cypress framework (chai + mocha).

Inside cypress, It looks like the fs.read has problems with the plugin itself. After import, it fails.

I also tried to Load the OpenAPI object inside the code. (defined in the readme.md file, point 2.From an object). But with the same result.

Stack Trace:

    at patch ([node_modules/graceful-fs/polyfills.js:141:1](http://localhost:64488/__/#))
    at patch ([node_modules/graceful-fs/graceful-fs.js:104:1](http://localhost:64488/__/#))
    at [155]</ ([node_modules/graceful-fs/graceful-fs.js:96:1](http://localhost:64488/__/#))
    at [155] (http://localhost:64488/__cypress/tests?p=cypress/support/index.js:22864:5)
    at [155]< (http://localhost:64488/__cypress/tests?p=cypress/support/index.js:22864:18)
    at o ([node_modules/browser-pack/_prelude.js:1:1](http://localhost:64488/__/#))
    at o ([node_modules/browser-pack/_prelude.js:1:1](http://localhost:64488/__/#))
    at [135]< ([node_modules/fs-extra/lib/fs/index.js:5:1](http://localhost:64488/__/#))
    at o ([node_modules/browser-pack/_prelude.js:1:1](http://localhost:64488/__/#))
    at o ([node_modules/browser-pack/_prelude.js:1:1](http://localhost:64488/__/#))
    at [136]< ([node_modules/fs-extra/lib/index.js:5:1](http://localhost:64488/__/#))
    at o ([node_modules/browser-pack/_prelude.js:1:1](http://localhost:64488/__/#))
    at o ([node_modules/browser-pack/_prelude.js:1:1](http://localhost:64488/__/#))
    at [181]< ([node_modules/openapi-validator/dist/openApiSpecFactory.js:6:1](http://localhost:64488/__/#))
    at o ([node_modules/browser-pack/_prelude.js:1:1](http://localhost:64488/__/#))
    at o ([node_modules/browser-pack/_prelude.js:1:1](http://localhost:64488/__/#))
    at [180]< ([node_modules/openapi-validator/dist/index.js:9:1](http://localhost:64488/__/#))
    at o ([node_modules/browser-pack/_prelude.js:1:1](http://localhost:64488/__/#))
    at o ([node_modules/browser-pack/_prelude.js:1:1](http://localhost:64488/__/#))
    at [82]< ([node_modules/chai-openapi-response-validator/dist/index.js:6:1](http://localhost:64488/__/#))
    at o ([node_modules/browser-pack/_prelude.js:1:1](http://localhost:64488/__/#))
    at o ([node_modules/browser-pack/_prelude.js:1:1](http://localhost:64488/__/#))
    at [2]< ([cypress/support/index.js:47:40](http://localhost:64488/__/#))
    at o ([node_modules/browser-pack/_prelude.js:1:1](http://localhost:64488/__/#))
    at r ([node_modules/browser-pack/_prelude.js:1:1](http://localhost:64488/__/#))
    at  ([node_modules/browser-pack/_prelude.js:1:1](http://localhost:64488/__/#))
    at ../driver/src/cypress/script_utils.ts/evalScripts (http://localhost:64488/__cypress/runner/cypress_runner.js:180864:17)
    at arrayEach (http://localhost:64488/__cypress/runner/cypress_runner.js:41318:20)
    at forEach (http://localhost:64488/__cypress/runner/cypress_runner.js:50198:15)
    at evalScripts (http://localhost:64488/__cypress/runner/cypress_runner.js:180863:50)
    at ../driver/src/cypress/script_utils.ts/runScriptsFromUrls (http://localhost:64488/__cypress/runner/cypress_runner.js:180871:164)
From previous event:
    at runScriptsFromUrls (http://localhost:64488/__cypress/runner/cypress_runner.js:180871:137)
    at runScripts (http://localhost:64488/__cypress/runner/cypress_runner.js:180886:13)
    at onSpecWindow (http://localhost:64488/__cypress/runner/cypress_runner.js:169570:77)
    at  (http://localhost:64488/__cypress/iframes/integration%2FR_API%2FAPI.feature:16:25)
    at  (http://localhost:64488/__cypress/iframes/integration%2FR_API%2FAPI.feature:17:10)```

[andrejsmogrovic]

@rwalle61 I have resolved the issue, and the plugin is working fine with the cypress framework.

I have loaded the library via node, and created the task in the cypress. (Pure JavaScript).

Then, I have parsed cy.request response, and build a new one, so it looks like axios object.