From 90590c495ab55752b63b44d62720b86dc1bc172e Mon Sep 17 00:00:00 2001
From: zhengkai <zhengkai15@meituan.com>
Date: Mon, 9 Aug 2021 10:58:19 +0800
Subject: [PATCH] add test unit 'throttle three times'

---
 test/functions.js | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/test/functions.js b/test/functions.js
index 20144179a..2bbcdbb46 100644
--- a/test/functions.js
+++ b/test/functions.js
@@ -244,6 +244,16 @@
     _.delay(function(){ assert.strictEqual(counter, 2, 'incr was called twice'); done(); }, 64);
   });
 
+  QUnit.test('throttle three times', function(assert) {
+    assert.expect(1);
+    var done = assert.async();
+    var counter = 0;
+    var incr = function(){ counter++; };
+    var throttledIncr = _.throttle(incr, 32);
+    throttledIncr(); throttledIncr(); throttledIncr();
+    _.delay(function(){ assert.strictEqual(counter, 2, 'incr was called twice'); done(); }, 64);
+  });
+
   QUnit.test('more throttling', function(assert) {
     assert.expect(3);
     var done = assert.async();