example expect().rejects.toThrow not working as expected

[eric4545]

Do you want to request a feature or report a bug?

What is the current behavior?

Test case cannot pass got following

 FAIL  ./test.spec.js
  ✕ rejects to octopus (10ms)
  ✕ rejects to octopus (2ms)

  ● rejects to octopus

    expect(function).toThrow(string)

    Received value must be a function, but instead "object" was found

      at Object.<anonymous> (node_modules/expect/build/index.js:162:51)
          at Generator.throw (<anonymous>)
      at step (node_modules/expect/build/index.js:40:727)
      at node_modules/expect/build/index.js:40:926
          at <anonymous>
      at process._tickCallback (internal/process/next_tick.js:188:7)

If the current behavior is a bug, please provide the steps to reproduce and
either a repl.it demo through https://repl.it/languages/jest or a minimal
repository on GitHub that we can yarn install and yarn test.

Following example in https://facebook.github.io/jest/docs/en/expect.html#rejects

// test.spec.js
test('rejects to octopus', async () => {
	await expect(Promise.reject(new Error('octopus'))).rejects.toThrow('octopus');
});
test('rejects to octopus', () => {
	// make sure to add a return statement
	return expect(Promise.reject(new Error('octopus'))).rejects.toThrow('octopus');
});

jest test.spec.js

What is the expected behavior?

expected test case should be pass.

Please provide your exact Jest configuration and mention your Jest, node,
yarn/npm version and operating system.

{
   jest: "21.2.1",
   node: "v8.9.1",
   yarn: "1.3.2",
   os: "Ubuntu 16.04.3 LTS"
}

[eric4545]

#4884

[JamesTheHacker]

Does this work in the current stable release? I'm using 21.2.1 and still getting issues.

 test('Testing rejects.toThrow', async () => {
    await expect(Promise.reject(new Error('octopus'))).rejects.toThrow('octopus');
  });

I still get the same error:

expect(function).toThrow(string)
    Received value must be a function, but instead "object" was found

And if not how can I solve this problem without using a non stable branch?

[SimenB]

This is just supported in the beta for now (new stable coming in the not too distant future). Please see #3601 for workarounds

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.
Please note this issue tracker is not a help forum. We recommend using StackOverflow or our discord channel for questions.