jest/no-jasmine-globals

Jest's default test runner doesn't define Jasmine's globals. A test that came from Jasmine and still calls fail(), spyOn() or jasmine.createSpy() throws a ReferenceError when it gets there. Jest has its own API for each of them.

Jasmine	Jest
`spyOn`, `spyOnProperty`	`jest.spyOn`
`fail`	Throw an error
`pending`	`test.skip`
`jasmine.any`, `anything`, `arrayContaining`, `objectContaining`, `stringMatching`	The same name on `expect`
`jasmine.createSpy`	`jest.fn`
`jasmine.addMatchers`	`expect.extend`
`jasmine.DEFAULT_TIMEOUT_INTERVAL = 5000`	`jest.setTimeout(5000)`

Any other call to a jasmine method or assignment to a jasmine property is reported too.

--fix rewrites the five matchers, such as jasmine.any to expect.any, and jasmine.DEFAULT_TIMEOUT_INTERVAL = 5000 to jest.setTimeout(5000).

Configure#

Off by default. To turn it on:

bunfig.toml

[lint.rules]
"jest/no-jasmine-globals" = "error" # or "warn"

Examples#

example.js4 problems

jasmine.DEFAULT_TIMEOUT_INTERVAL = 5000;

test("saves the user", () => {
  spyOn(db, "insert");
  save({ name: "Ada" });
  expect(db.insert).toHaveBeenCalledWith(jasmine.any(Object));
});

test("exports to PDF", () => {
  pending();
});

example.jsNo problems

jest.setTimeout(5000);

test("saves the user", () => {
  jest.spyOn(db, "insert");
  save({ name: "Ada" });
  expect(db.insert).toHaveBeenCalledWith(expect.any(Object));
});

test.skip("exports to PDF", () => {});

Your own function with one of these names isn't reported:

example.jsNo problems

import { fail } from "./helpers";

test("rejects an empty name", () => {
  if (validate("")) {
    fail("an empty name passed");
  }
});