| 'use strict'; |
| |
| // ======================================= |
| // |
| // Utility functions for testing keyframes |
| // |
| // ======================================= |
| |
| |
| // ------------------------------ |
| // Helper functions |
| // ------------------------------ |
| |
| /** |
| * Test equality between two lists of computed keyframes |
| * @param {Array.<ComputedKeyframe>} a - actual computed keyframes |
| * @param {Array.<ComputedKeyframe>} b - expected computed keyframes |
| */ |
| function assert_frame_lists_equal(a, b) { |
| assert_equals(a.length, b.length, 'number of frames'); |
| for (let i = 0; i < Math.min(a.length, b.length); i++) { |
| assert_frames_equal(a[i], b[i], `ComputedKeyframe #${i}`); |
| } |
| } |
| |
| /** Helper for assert_frame_lists_equal */ |
| function assert_frames_equal(a, b, name) { |
| assert_equals(Object.keys(a).sort().toString(), |
| Object.keys(b).sort().toString(), |
| `properties on ${name} should match`); |
| // Iterates sorted keys to ensure stable failures. |
| for (const p of Object.keys(a).sort()) { |
| assert_equals(a[p], b[p], `value for '${p}' on ${name}`); |
| } |
| } |
