| PASS | Constructing a CSSHWB with degrees for the hue works as intended. | |
| PASS | CSSHWB.h can be updated with a degrees. | |
| PASS | Constructing a CSSHWB with radians for the hue works as intended. | |
| PASS | CSSHWB.h can be updated with a radians. | |
| PASS | Constructing a CSSHWB with gradians for the hue works as intended. | |
| PASS | CSSHWB.h can be updated with a gradians. | |
| PASS | Constructing a CSSHWB with a number for hue throws a TypeError. | |
| PASS | Constructing a CSSHWB with undefined for hue throws a TypeError. | |
| PASS | Constructing a CSSHWB with css pixels for hue throws a SyntaxError. | |
| PASS | CSSHWB can be constructed from three numbers and will get an alpha of 100%. | |
| PASS | CSSHWB can be constructed from four numbers. | |
| PASS | Constructing a CSSHWB with CSS.number for s, l or alpha throws a SyntaxError | |
| PASS | Updating a CSSHWB with CSS.number for w throws a SyntaxError | |
| PASS | CSSHWB.w can be updated to a number. | |
| PASS | CSSHWB.w can be updated with a CSS percent. | |
| PASS | Updating a CSSHWB with CSS.number for b throws a SyntaxError | |
| PASS | CSSHWB.b can be updated to a number. | |
| PASS | CSSHWB.b can be updated with a CSS percent. | |
| PASS | Updating a CSSHWB with CSS.number for alpha throws a SyntaxError | |
| PASS | CSSHWB.alpha can be updated to a number. | |
| PASS | CSSHWB.alpha can be updated with a CSS percent. | |