How can I write a test which expects an ‘Error’ to be thrown in Jasmine?

by

Try using an anonymous function instead:

expect( function(){ parser.parse(raw); } ).toThrow(new Error("Parsing is not possible"));

you should be passing a function into the expect(...) call. Your incorrect code:

// incorrect:
expect(parser.parse(raw)).toThrow(new Error("Parsing is not possible"));

is trying to actually call parser.parse(raw) in an attempt to pass the result into expect(...),

More Related Contents:

  1. How to reuse beforeEach/afterEach in Jasmine JS?
  2. Expect item in array
  3. Testing asynchronous function with mocha
  4. How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)
  5. Client on Node.js: Uncaught ReferenceError: require is not defined
  6. Error: request entity too large
  7. How to parse JSON using Node.js? [closed]
  8. Asynchronous exception handling with bluebird promises
  9. How to format a UTC date as a `YYYY-MM-DD hh:mm:ss` string using NodeJS?
  10. Using socket.io in Express 4 and express-generator’s /bin/www
  11. Calling a JSON API with Node.js
  12. What is the best way to limit concurrency when using ES6’s Promise.all()?
  13. getting how many people are in a chat room in socket.io [duplicate]
  14. How to convert CSV to JSON in Node.js
  15. Reading Excel file using node.js
  16. Modify file in place (same dest) using Gulp.js and a globbing pattern
  17. How to publish a module written in ES6 to NPM?
  18. Manipulating the local file system with browser-based JavaScript and Node
  19. How to get updated document back from the findOneAndUpdate method?
  20. How do I add an action to watson conversation response?
  21. Firebase – Get Random Child From Database Node
  22. Loop through asynchronous request
  23. Error: 10 ABORTED: Too much contention on these documents. Please try again
  24. How to mock Axios with Jest?
  25. Does every object in JS have a toString() method?
  26. Where argument of first next() call goes? [duplicate]
  27. How to generate unique ID with node.js
  28. execute some code and then go into interactive node
  29. Use of require(lib) versus in Electron apps
  30. Error when requiring discordjs: “cannot find module ‘node:events'” [duplicate]

Leave a Comment