dns: verify argument is valid function in resolve

[platform/upstream/nodejs.git] / test / simple / test-dns.js

diff --git a/test/simple/test-dns.js b/test/simple/test-dns.js
index 9283bab..e7dce4b 100644 (file)
--- a/test/simple/test-dns.js
+++ b/test/simple/test-dns.js
@@ -60,3 +60,13 @@ assert.deepEqual(dns.getServers(), portsExpected);
 
 assert.doesNotThrow(function () { dns.setServers([]); });
 assert.deepEqual(dns.getServers(), []);
+
+assert.throws(
+  function() {
+    dns.resolve('test.com', [], new Function);
+  },
+  function(err) {
+    return !(err instanceof TypeError);
+  },
+  "Unexpected error"
+);