1 files changed, 44 insertions, 0 deletions
diff --git a/test/fetch/fetch-leak.js b/test/fetch/fetch-leak.js
new file mode 100644
index 0000000..b8e6b16
--- /dev/null
+++ b/test/fetch/fetch-leak.js
@@ -0,0 +1,44 @@
+'use strict'
+
+const { test } = require('tap')
+const { fetch } = require('../..')
+const { createServer } = require('http')
+
+test('do not leak', (t) => {
+  t.plan(1)
+
+  const server = createServer((req, res) => {
+    res.end()
+  })
+  t.teardown(server.close.bind(server))
+
+  let url
+  let done = false
+  server.listen(0, function attack () {
+    if (done) {
+      return
+    }
+    url ??= new URL(`http://127.0.0.1:${server.address().port}`)
+    const controller = new AbortController()
+    fetch(url, { signal: controller.signal })
+      .then(res => res.arrayBuffer())
+      .catch(() => {})
+      .then(attack)
+  })
+
+  let prev = Infinity
+  let count = 0
+  const interval = setInterval(() => {
+    done = true
+    global.gc()
+    const next = process.memoryUsage().heapUsed
+    if (next <= prev) {
+      t.pass()
+    } else if (count++ > 20) {
+      t.fail()
+    } else {
+      prev = next
+    }
+  }, 1e3)
+  t.teardown(() => clearInterval(interval))
+})