<!DOCTYPE html> <html> <head> <title>Test Encrypted Media Extensions - Special key system</title> <script src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> </head> <body> <pre id="test"> <script class="testbody" type="text/javascript"> function requestProtectionQueryKeySystemAccess() { const kKeySystemOptions = [ { initDataTypes: ["cenc"], videoCapabilities: [{ contentType: 'video/mp4; codecs="avc1.4d4015"' }], }, ]; const kClearKeyWithProtectionQuery = "org.mozilla.clearkey_with_protection_query"; return navigator.requestMediaKeySystemAccess( kClearKeyWithProtectionQuery, kKeySystemOptions ); } // Tests that org.mozilla.clearkey_with_protection_query cannot be accessed from JS if not preffed on. add_task(async function protectionQueryKeySystemShouldBeHidden() { try { // Should throw since special key systems are not enabled. await requestProtectionQueryKeySystemAccess(); ok( false, "Test should have thrown by default because media.clearkey.test-key-systems.enabled should not be set" ); } catch (e) { is(e.name, "NotSupportedError", "Should get not supported error"); is( e.message, "Key system is unsupported", "Should get message that key system is unsupported" ); } }); // Tests that org.mozilla.clearkey_with_protection_query can be accessed from JS if preffed on. add_task(async function protectionQueryKeySystemShouldBeExposed() { await SpecialPowers.pushPrefEnv({ set: [["media.clearkey.test-key-systems.enabled", true]], }); try { // Should not throw since special key systems are enabled. let access = await requestProtectionQueryKeySystemAccess(); ok( access, "Should get access to protection query key system when preffed on" ); } catch (e) { ok(false, "Test should not have thrown and key system should be available"); } }); </script> </pre> </body> </html>