Release

client/islets/core/y-throttle/y-throttle.test.js

@@ -0,0 +1,88 @@
+modules.define('test', ['y-throttle'], function (provide, throttle) {
+
+    describe('throttle', function () {
+        it('should throttle given function', function (done) {
+            var res = [];
+            var throttledFn = throttle(function (arg) {
+                res.push(arg);
+            }, 20);
+
+            throttledFn(1);
+            throttledFn(2);
+            throttledFn(3);
+
+            setTimeout(function () {
+                throttledFn(4);
+            }, 10);
+
+            setTimeout(function () {
+                throttledFn(5);
+                res.should.deep.eq([1, 4]);
+                done();
+            }, 30);
+        });
+
+        it('should not trigger leading call when option "leading" is set to false', function (done) {
+            var res = [];
+            var throttledFn = throttle(function (arg) {
+                res.push(arg);
+            }, 20, {leading: false});
+
+            throttledFn(1);
+            throttledFn(2);
+            throttledFn(3);
+
+            setTimeout(function () {
+                throttledFn(4);
+            }, 10);
+
+            setTimeout(function () {
+                throttledFn(5);
+                res.should.deep.eq([4]);
+                done();
+            }, 30);
+        });
+
+        it('should not trigger trailing call when option "trailing" is set to false', function (done) {
+            var res = [];
+            var throttledFn = throttle(function (arg) {
+                res.push(arg);
+            }, 20, {trailing: false});
+
+            throttledFn(1);
+            throttledFn(2);
+            throttledFn(3);
+
+            setTimeout(function () {
+                throttledFn(4);
+            }, 10);
+
+            setTimeout(function () {
+                res.should.deep.eq([1]);
+                done();
+            }, 30);
+        });
+
+        it('should not trigger leading and trailing calls when both options are set to false', function (done) {
+            var res = [];
+            var throttledFn = throttle(function (arg) {
+                res.push(arg);
+            }, 20, {leading: false, trailing: false});
+
+            throttledFn(1);
+            throttledFn(2);
+            throttledFn(3);
+
+            setTimeout(function () {
+                throttledFn(4);
+            }, 10);
+
+            setTimeout(function () {
+                res.should.deep.eq([]);
+                done();
+            }, 30);
+        });
+    });
+
+    provide();
+});