From 49f7e9bdc27babc217db732f42263a08c43da84b Mon Sep 17 00:00:00 2001
From: Andreas Pehrson <apehrson@mozilla.com>
Date: Wed, 17 Jul 2019 19:57:30 +0000
Subject: [PATCH] Bug 1565374 - Improve test. r=jib

Differential Revision: https://phabricator.services.mozilla.com/D37783

--HG--
extra : moz-landing-system : lando
---
 .../tests/mochitest/test_fingerprinting_resistance.html     | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/dom/media/tests/mochitest/test_fingerprinting_resistance.html b/dom/media/tests/mochitest/test_fingerprinting_resistance.html
index 2fea2ef842f3..cb7a9e643207 100644
--- a/dom/media/tests/mochitest/test_fingerprinting_resistance.html
+++ b/dom/media/tests/mochitest/test_fingerprinting_resistance.html
@@ -22,7 +22,11 @@ async function testEnumerateDevices(expectDevices) {
 
 async function testGetUserMedia(expectDevices) {
   const constraints = [
-    {audio: true}, {video: true}, {audio: true, video: true}
+    {audio: true},
+    {video: true},
+    {audio: true, video: true},
+    {video: {width: {min: 1e9}}}, // impossible
+    {audio: {channelCount: {exact: 1e3}}}, // impossible
   ];
   for (let constraint of constraints) {
     let message = "getUserMedia(" + JSON.stringify(constraint) + ")";