Files
lodash/test/toInteger-methods.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

26 lines
890 B
JavaScript

import assert from 'assert';
import lodashStable from 'lodash';
import { _, MAX_SAFE_INTEGER, MAX_INTEGER } from './utils.js';
describe('toInteger methods', function() {
lodashStable.each(['toInteger', 'toSafeInteger'], function(methodName) {
var func = _[methodName],
isSafe = methodName == 'toSafeInteger';
it('`_.' + methodName + '` should convert values to integers', function() {
assert.strictEqual(func(-5.6), -5);
assert.strictEqual(func('5.6'), 5);
assert.strictEqual(func(), 0);
assert.strictEqual(func(NaN), 0);
var expected = isSafe ? MAX_SAFE_INTEGER : MAX_INTEGER;
assert.strictEqual(func(Infinity), expected);
assert.strictEqual(func(-Infinity), -expected);
});
it('`_.' + methodName + '` should support `value` of `-0`', function() {
assert.strictEqual(1 / func(-0), -Infinity);
});
});
});