| <!doctype html> |
| <meta charset=utf-8> |
| <title>Animation.frameRate</title> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script src="../../imported/w3c/web-platform-tests/web-animations/testcommon.js"></script> |
| <body> |
| <script> |
| 'use strict'; |
| |
| test(t => { |
| const animation = new Animation; |
| |
| assert_equals(animation.frameRate, "auto", "The default value for frameRate is 'auto'"); |
| |
| // AnimationFrameRatePreset values. |
| for (let value of ["low", "high", "highest", "auto"]) { |
| animation.frameRate = value; |
| assert_equals(animation.frameRate, value, `The value "${value}" can be set`); |
| } |
| |
| // Numeric value. |
| animation.frameRate = 60; |
| assert_equals(animation.frameRate, 60, `A numeric value can be set`); |
| }, "Valid animation.frameRate values"); |
| |
| test(t => { |
| const animation = new Animation; |
| for (let value of ["default", "120", null, undefined, [], {}]) { |
| assert_throws(new TypeError, () => animation.frameRate = value, `Setting the value ${value} throws`); |
| assert_equals(animation.frameRate, "auto", `Setting the invalid value "${value}" does not change the value`); |
| } |
| }, "Invalid animation.frameRate values"); |
| |
| </script> |
| </body> |
