Code Coverage |
||||||||||
Lines |
Functions and Methods |
Classes and Traits |
||||||||
| Total | |
0.00% |
0 / 3 |
|
0.00% |
0 / 1 |
CRAP | |
0.00% |
0 / 1 |
| ReferenceRelation | |
0.00% |
0 / 3 |
|
0.00% |
0 / 1 |
12 | |
0.00% |
0 / 1 |
| satisfiedBy | |
0.00% |
0 / 3 |
|
0.00% |
0 / 1 |
12 | |||
| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Phpdftk\WptHarness; |
| 6 | |
| 7 | /** |
| 8 | * The relation a WPT reftest declares between itself and one of its |
| 9 | * references. |
| 10 | * |
| 11 | * WPT's manifest generator reads exactly two `<link>` relations and |
| 12 | * maps them onto the two comparison operators |
| 13 | * (`tools/manifest/sourcefile.py::references`): |
| 14 | * |
| 15 | * rel_map = {"match": "==", "mismatch": "!="} |
| 16 | * |
| 17 | * The case values here are those operators, so a serialised relation |
| 18 | * reads the same way WPT's own manifest writes it. |
| 19 | * |
| 20 | * A `mismatch` reference is not a weaker assertion than a `match` |
| 21 | * one, it is the opposite assertion: the test must render |
| 22 | * *differently* from the reference. That makes mismatch fixtures |
| 23 | * uniquely valuable to this harness, which renders both sides with |
| 24 | * its own engine — an unimplemented feature blanks the test and the |
| 25 | * reference alike, and two blank pages are identical, so a mismatch |
| 26 | * fixture correctly FAILS where a match fixture would falsely pass. |
| 27 | */ |
| 28 | enum ReferenceRelation: string |
| 29 | { |
| 30 | case Match = '=='; |
| 31 | case Mismatch = '!='; |
| 32 | |
| 33 | /** |
| 34 | * Turn the frame comparison into a verdict for this relation. |
| 35 | * |
| 36 | * `$framesMatched` is "the two screenshots are equal within |
| 37 | * whatever tolerance applies" — wptrunner's `equal` local in |
| 38 | * `executors/base.py::check_pass`, which then returns |
| 39 | * `False if relation == "==" else True` on inequality. The |
| 40 | * tolerance question is settled before this is called; all that |
| 41 | * happens here is the sign. |
| 42 | */ |
| 43 | public function satisfiedBy(bool $framesMatched): bool |
| 44 | { |
| 45 | return match ($this) { |
| 46 | self::Match => $framesMatched, |
| 47 | self::Mismatch => !$framesMatched, |
| 48 | }; |
| 49 | } |
| 50 | } |