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Ensure _.debounce performs a trailing call, when both leading and trailing are true, only after the throttled function is called more than once. [closes #243]

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Former-commit-id: 59ac6bc4ece373623f2bd753b662b8cc974cabc8
This commit is contained in:
John-David Dalton
2013-04-17 08:43:18 -07:00
parent 3b2e0e34ef
commit e7c44274b0
2 changed files with 23 additions and 10 deletions
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19
test/test.js
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@@ -552,16 +552,29 @@
}, 64);
});
test('should work with `leading` option', function() {
_.each([true, { 'leading': true }], function(options) {
var withLeading = _.debounce(_.identity, 32, options);
asyncTest('should work with `leading` option', function() {
var counts = [0, 0, 0];
_.each([true, { 'leading': true }], function(options, index) {
var withLeading = _.debounce(function(value) {
counts[index]++;
return value;
}, 32, options);
equal(withLeading('x'), 'x');
});
_.times(2, _.debounce(function() { counts[2]++; }, 32, { 'leading': true }));
strictEqual(counts[2], 1);
_.each([false, { 'leading': false }], function(options) {
var withoutLeading = _.debounce(_.identity, 32, options);
strictEqual(withoutLeading('x'), undefined);
});
setTimeout(function() {
deepEqual(counts, [1, 1, 2]);
QUnit.start();
}, 64);
});
asyncTest('should work with `trailing` option', function() {