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Add _.spread tests for the start param.

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This commit is contained in:
John-David Dalton
2016-02-01 21:06:33 -08:00
parent de5bd32aba
commit 7a17967d79
1 changed files with 34 additions and 2 deletions
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36
test/test.js
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@@ -18577,11 +18577,15 @@
QUnit.module('lodash.spread');
(function() {
function fn(a, b, c) {
return slice.call(arguments);
}
QUnit.test('should spread arguments to `func`', function(assert) {
assert.expect(1);
var spread = _.spread(add);
assert.strictEqual(spread([4, 2]), 6);
var spread = _.spread(fn);
assert.deepEqual(spread([4, 2]), [4, 2]);
});
QUnit.test('should accept a falsey `array` argument', function(assert) {
@@ -18611,6 +18615,34 @@
spread([4, 2], 'ignored');
assert.deepEqual(args, [4, 2]);
});
QUnit.test('should work with `start`', function(assert) {
assert.expect(1);
var spread = _.spread(fn, 1);
assert.deepEqual(spread(1, [2, 3, 4]), [1, 2, 3, 4]);
});
QUnit.test('should treat `start` as `0` for negative or `NaN` values', function(assert) {
assert.expect(1);
var values = [-1, NaN, 'a'],
expected = lodashStable.map(values, lodashStable.constant([1, 2, 3, 4]));
var actual = lodashStable.map(values, function(value) {
var spread = _.spread(fn, value);
return spread([1, 2, 3, 4]);
});
assert.deepEqual(actual, expected);
});
QUnit.test('should coerce `start` to an integer', function(assert) {
assert.expect(1);
var spread = _.spread(fn, 1.6);
assert.deepEqual(spread(1, [2, 3]), [1, 2, 3]);
});
}());
/*--------------------------------------------------------------------------*/