Testing Mongoose models with Jest

Because mongoose will try to cast the cinema name to string and it's successful doing that. Try instead changing the capacity to a string: capacity: 'saasd'You will get something like:

{  ValidationError: Cinema validation failed: capacity: Cast to Number failed for value "saasd" at path "capacity"        at ValidationError.Object.<anonymous>.ValidationError.inspect (/Users/fabio/playground/mongoose/node_modules/mongoose/lib/error/validation.js:56:24)        at formatValue (util.js:430:38)        at inspect (util.js:324:10)        at format (util.js:191:12)        at CustomConsole.log (/Users/fabio/playground/mongoose/node_modules/jest-util/build/Console.js:135:53)        at cinema.validate.response (/Users/fabio/playground/mongoose/cinema.test.js:12:15)        at /Users/fabio/playground/mongoose/node_modules/mongoose/lib/document.js:1432:5        at /Users/fabio/playground/mongoose/node_modules/mongoose/lib/document.js:1564:9        at /Users/fabio/playground/mongoose/node_modules/kareem/index.js:135:16        at _combinedTickCallback (internal/process/next_tick.js:131:7)        at process._tickCallback (internal/process/next_tick.js:180:9)   errors: {     capacity: MongooseError {       message: 'Cast to Number failed for value "saasd" at path "capacity"',       name: 'CastError',       stringValue: '"saasd"',       kind: 'Number',       value: 'saasd',       path: 'capacity',       reason: [Object]     }   },   _message: 'Cinema validation failed',   name: 'ValidationError'}