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Ensure _.at works with an out of range index when chaining.

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John-David Dalton
2015-11-15 00:00:07 -08:00
parent 45f07d5014
commit cad0fbfc4d
2 changed files with 59 additions and 26 deletions
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15
test/test.js
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@@ -1269,7 +1269,7 @@
});
QUnit.test('should support shortcut fusion', function(assert) {
assert.expect(6);
assert.expect(8);
if (!isNpm) {
var array = lodashStable.range(LARGE_ARRAY_SIZE),
@@ -1277,16 +1277,19 @@
iteratee = function(value) { count++; return square(value); },
lastIndex = LARGE_ARRAY_SIZE - 1;
_.each([lastIndex, lastIndex + '', []], function(n, index) {
_.each([lastIndex, lastIndex + '', LARGE_ARRAY_SIZE, []], function(n, index) {
count = 0;
var actual = _(array).map(iteratee).at(n).value();
var actual = _(array).map(iteratee).at(n).value(),
expected = index < 2 ? 1 : 0;
assert.strictEqual(count, index == 2 ? 0 : 1);
assert.deepEqual(actual, index == 2 ? [] : [square(lastIndex)]);
assert.strictEqual(count, expected);
expected = index == 3 ? [] : [index == 2 ? undefined : square(lastIndex)];
assert.deepEqual(actual, expected);
});
}
else {
skipTest(assert, 6);
skipTest(assert, 8);
}
});