Files
lodash/test/over.js
Benjamin Tan d5ef31929a Add initial test files from lodash v4. (#4172)
* Install test dependencies.

* Add initial test files.

These files were created using a simplistic AST manipulator using `recast` to
preserve formatting. There's bound to be a huge chunk of errors, but this serves
as a good start. QUnit was replaced with Mocha, with ES2015 imports running via
`esm`.

As far as possible, QUnit-specific syntax has been replaced with Mocha's
`describe` and `it`, while the native Node.js `assert` module is used for
assertions. Files in the `test` directory ending in `.test.js` will be treated
as test files.

* Add initial passing files to test run.
2019-02-12 09:11:32 -08:00

59 lines
1.9 KiB
JavaScript

import assert from 'assert';
import { _, slice } from './utils.js';
describe('over', function() {
it('should create a function that invokes `iteratees`', function() {
var over = _.over(Math.max, Math.min);
assert.deepStrictEqual(over(1, 2, 3, 4), [4, 1]);
});
it('should use `_.identity` when a predicate is nullish', function() {
var over = _.over(undefined, null);
assert.deepStrictEqual(over('a', 'b', 'c'), ['a', 'a']);
});
it('should work with `_.property` shorthands', function() {
var over = _.over('b', 'a');
assert.deepStrictEqual(over({ 'a': 1, 'b': 2 }), [2, 1]);
});
it('should work with `_.matches` shorthands', function() {
var over = _.over({ 'b': 1 }, { 'a': 1 });
assert.deepStrictEqual(over({ 'a': 1, 'b': 2 }), [false, true]);
});
it('should work with `_.matchesProperty` shorthands', function() {
var over = _.over([['b', 2], ['a', 2]]);
assert.deepStrictEqual(over({ 'a': 1, 'b': 2 }), [true, false]);
assert.deepStrictEqual(over({ 'a': 2, 'b': 1 }), [false, true]);
});
it('should differentiate between `_.property` and `_.matchesProperty` shorthands', function() {
var over = _.over(['a', 1]);
assert.deepStrictEqual(over({ 'a': 1, '1': 2 }), [1, 2]);
assert.deepStrictEqual(over({ 'a': 2, '1': 1 }), [2, 1]);
over = _.over([['a', 1]]);
assert.deepStrictEqual(over({ 'a': 1 }), [true]);
assert.deepStrictEqual(over({ 'a': 2 }), [false]);
});
it('should provide arguments to predicates', function() {
var over = _.over(function() {
return slice.call(arguments);
});
assert.deepStrictEqual(over('a', 'b', 'c'), [['a', 'b', 'c']]);
});
it('should use `this` binding of function for `iteratees`', function() {
var over = _.over(function() { return this.b; }, function() { return this.a; }),
object = { 'over': over, 'a': 1, 'b': 2 };
assert.deepStrictEqual(object.over(), [2, 1]);
});
});