Merge 42f2f1b into 8d1362d

sindresorhus · Sep 23, 2019 · dc12533 · dc12533
2 parents 8d1362d + 42f2f1b
commit dc12533
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Showing 2 changed files with 10 additions and 1 deletion.
diff --git a/index.js b/index.js
@@ -108,7 +108,7 @@ class QuickLRU {
 			}
 		}
 
-		return this._size + oldCacheSize;
+		return Math.min(this._size + oldCacheSize, this.maxSize);
 	}
 }
 

diff --git a/test.js b/test.js
@@ -166,6 +166,15 @@ test('.size - accounts for duplicates', t => {
 	t.is(lru.size, 2);
 });
 
+test('max size', t => {
+	const lru = new QuickLRU({maxSize: 3});
+	lru.set('1', 1);
+	lru.set('2', 2);
+	lru.set('3', 3);
+	lru.set('4', 4);
+	t.is(lru.size, 3);
+});
+
 test('checks total cache size does not exceed `maxSize`', t => {
 	const lru = new QuickLRU({maxSize: 2});
 	lru.set('1', 1);