<!doctype html> <html> <head> <title>Trivial mandatory constraint in getUserMedia</title> <link rel="author" title="Dominique Hazael-Massieux" href="mailto:dom@w3.org"/> <link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#widl-NavigatorUserMedia-getUserMedia-void-MediaStreamConstraints-constraints-NavigatorUserMediaSuccessCallback-successCallback-NavigatorUserMediaErrorCallback-errorCallback"> <link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#idl-def-NavigatorUserMediaError"> </head> <body> <p class="instructions">When prompted, accept to share your video stream.</p> <h1 class="instructions">Description</h1> <p class="instructions">This test checks that setting an impossible mandatory constraint (width >=1G) in getUserMedia works</p> <div id='log'></div> <script src=/resources/testharness.js></script> <script src=/resources/testharnessreport.js></script> <script src=/resources/testdriver.js></script> <script src=/resources/testdriver-vendor.js></script> <script src=permission-helper.js></script> <script> promise_test(async () => { await setMediaPermission("granted", ["camera"]); // Note - integer conversion is weird for +inf and numbers > 2^32, so we // use a number less than 2^32 for testing. try { await navigator.mediaDevices.getUserMedia({video: {width: {min:100000000}}}); assert_unreached("a Video stream of width 100M cannot be created"); } catch (error) { assert_equals(error.name, "OverconstrainedError", "An impossible constraint triggers a OverconstrainedError"); assert_equals(error.constraint, "width", "The name of the not satisfied error is given in error.constraint"); } }, "Tests that setting an impossible constraint in getUserMedia fails"); </script> </body> </html>