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Make _.repeat default n to 1 instead of 0.

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This commit is contained in:
John-David Dalton
2016-04-01 17:20:32 -07:00
parent c21174f7f9
commit 930b034da5
2 changed files with 40 additions and 12 deletions
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40
test/test.js
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@@ -18298,35 +18298,57 @@
QUnit.module('lodash.repeat');
(function() {
var string = 'abc';
QUnit.test('should repeat a string `n` times', function(assert) {
assert.expect(2);
assert.strictEqual(_.repeat('*', 3), '***');
assert.strictEqual(_.repeat('abc', 2), 'abcabc');
assert.strictEqual(_.repeat(string, 2), 'abcabc');
});
QUnit.test('should return an empty string for negative `n` or `n` of `0`', function(assert) {
QUnit.test('should treat falsey `n` values, except `undefined`, as `0`', function(assert) {
assert.expect(1);
var expected = lodashStable.map(falsey, function(value) {
return value === undefined ? string : '';
});
var actual = lodashStable.map(falsey, function(n, index) {
return index ? _.repeat(string, n) : _.repeat(string);
});
assert.deepEqual(actual, expected);
});
QUnit.test('should return an empty string if `n` is <= `0`', function(assert) {
assert.expect(2);
assert.strictEqual(_.repeat('abc', 0), '');
assert.strictEqual(_.repeat('abc', -2), '');
assert.strictEqual(_.repeat(string, 0), '');
assert.strictEqual(_.repeat(string, -2), '');
});
QUnit.test('should coerce `n` to an integer', function(assert) {
assert.expect(4);
assert.expect(3);
assert.strictEqual(_.repeat('abc'), '');
assert.strictEqual(_.repeat('abc', '2'), 'abcabc');
assert.strictEqual(_.repeat('abc', 2.6), 'abcabc');
assert.strictEqual(_.repeat(string, '2'), 'abcabc');
assert.strictEqual(_.repeat(string, 2.6), 'abcabc');
assert.strictEqual(_.repeat('*', { 'valueOf': alwaysThree }), '***');
});
QUnit.test('should coerce `string` to a string', function(assert) {
assert.expect(2);
assert.strictEqual(_.repeat(Object('abc'), 2), 'abcabc');
assert.strictEqual(_.repeat(Object(string), 2), 'abcabc');
assert.strictEqual(_.repeat({ 'toString': lodashStable.constant('*') }, 3), '***');
});
QUnit.test('should work as an iteratee for methods like `_.map`', function(assert) {
assert.expect(1);
var actual = lodashStable.map(['a', 'b', 'c'], _.repeat);
assert.deepEqual(actual, ['a', 'b', 'c']);
});
}());
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