83a6a6ea32
* chore: make aware eslint that we use jest By setting up the jest environment, we no longer need to declare the 'test' global in the configuration. * chore: don't need to import expect, it's a jest environment global * chore: don't need to import expect when creating undefined test
9 lines
249 B
JavaScript
9 lines
249 B
JavaScript
const {unary} = require('./_30s.js');
|
|
|
|
test('unary is a Function', () => {
|
|
expect(unary).toBeInstanceOf(Function);
|
|
});
|
|
test('Discards arguments after the first one', () => {
|
|
expect(['6', '8', '10'].map(unary(parseInt))).toEqual([6, 8, 10]);
|
|
});
|