mirror of
https://github.com/whoisclebs/lodash.git
synced 2026-01-31 15:27:50 +00:00
d5ef31929a
* 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.
58 lines
1.4 KiB
JavaScript
58 lines
1.4 KiB
JavaScript
import assert from 'assert';
|
|
import { slice } from './utils.js';
|
|
import reduce from '../reduce.js';
|
|
import head from '../head.js';
|
|
import keys from '../keys.js';
|
|
|
|
describe('reduce', function() {
|
|
var array = [1, 2, 3];
|
|
|
|
it('should use the first element of a collection as the default `accumulator`', function() {
|
|
assert.strictEqual(reduce(array), 1);
|
|
});
|
|
|
|
it('should provide correct `iteratee` arguments when iterating an array', function() {
|
|
var args;
|
|
|
|
reduce(array, function() {
|
|
args || (args = slice.call(arguments));
|
|
}, 0);
|
|
|
|
assert.deepStrictEqual(args, [0, 1, 0, array]);
|
|
|
|
args = undefined;
|
|
reduce(array, function() {
|
|
args || (args = slice.call(arguments));
|
|
});
|
|
|
|
assert.deepStrictEqual(args, [1, 2, 1, array]);
|
|
});
|
|
|
|
it('should provide correct `iteratee` arguments when iterating an object', function() {
|
|
var args,
|
|
object = { 'a': 1, 'b': 2 },
|
|
firstKey = head(keys(object));
|
|
|
|
var expected = firstKey == 'a'
|
|
? [0, 1, 'a', object]
|
|
: [0, 2, 'b', object];
|
|
|
|
reduce(object, function() {
|
|
args || (args = slice.call(arguments));
|
|
}, 0);
|
|
|
|
assert.deepStrictEqual(args, expected);
|
|
|
|
args = undefined;
|
|
expected = firstKey == 'a'
|
|
? [1, 2, 'b', object]
|
|
: [2, 1, 'a', object];
|
|
|
|
reduce(object, function() {
|
|
args || (args = slice.call(arguments));
|
|
});
|
|
|
|
assert.deepStrictEqual(args, expected);
|
|
});
|
|
});
|