test: check callback not invoked on lookup error

Use `common.mustNotCall()` to confirm that callback is not invoked when `dns.lookup()` throws. PR-URL: #13456 Reviewed-By: Tobias Nießen <[email protected]> Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Refael Ackermann <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: Gibson Fahnestock <[email protected]>
nodejs · Aug 16, 2017 · 543d2de · 543d2de
1 parent 91fb0cb
commit 543d2de
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/test/parallel/test-dns-lookup.js b/test/parallel/test-dns-lookup.js
@@ -24,15 +24,15 @@ assert.throws(() => {
     hints: 100,
     family: 0,
     all: false
-  }, () => {});
+  }, common.mustNotCall());
 }, /^TypeError: Invalid argument: hints must use valid flags$/);
 
 assert.throws(() => {
   dns.lookup(false, {
     hints: 0,
     family: 20,
     all: false
-  }, () => {});
+  }, common.mustNotCall());
 }, /^TypeError: Invalid argument: family must be 4 or 6$/);
 
 assert.doesNotThrow(() => {