1 files changed, 51 insertions, 0 deletions
diff --git a/node_modules/lru-cache/test/memory-leak.js b/node_modules/lru-cache/test/memory-leak.js
new file mode 100644
index 000000000..b5912f6f1
--- /dev/null
+++ b/node_modules/lru-cache/test/memory-leak.js
@@ -0,0 +1,51 @@
+#!/usr/bin/env node --expose_gc
+
+
+var weak = require('weak');
+var test = require('tap').test
+var LRU = require('../')
+var l = new LRU({ max: 10 })
+var refs = 0
+function X() {
+  refs ++
+  weak(this, deref)
+}
+
+function deref() {
+  refs --
+}
+
+test('no leaks', function (t) {
+  // fill up the cache
+  for (var i = 0; i < 100; i++) {
+    l.set(i, new X);
+    // throw some gets in there, too.
+    if (i % 2 === 0)
+      l.get(i / 2)
+  }
+
+  gc()
+
+  var start = process.memoryUsage()
+
+  // capture the memory
+  var startRefs = refs
+
+  // do it again, but more
+  for (var i = 0; i < 10000; i++) {
+    l.set(i, new X);
+    // throw some gets in there, too.
+    if (i % 2 === 0)
+      l.get(i / 2)
+  }
+
+  gc()
+
+  var end = process.memoryUsage()
+  t.equal(refs, startRefs, 'no leaky refs')
+
+  console.error('start: %j\n' +
+                'end:   %j', start, end);
+  t.pass();
+  t.end();
+})