phpunit: Avoid get_class() in MediaWikiCoversValidator

I notice that in CI, the inherited "testValidCovers" often shows
multiple times for test classes as being slow (50ms+).

E.g. from a quibble/php72 job:

> …
> 85ms to run ResourceLoaderWikiModuleTest:testValidCovers
> …

Bug: T225730
Change-Id: I524df134c52173c49ebb2b263a90bb5732255865

diff --git a/tests/phpunit/MediaWikiCoversValidator.php b/tests/phpunit/MediaWikiCoversValidator.php
index a79a139..ce3f2e2 100644 (file)
--- a/tests/phpunit/MediaWikiCoversValidator.php
+++ b/tests/phpunit/MediaWikiCoversValidator.php
@@ -33,7 +33,7 @@ trait MediaWikiCoversValidator {
         */
        public function testValidCovers() {
                $methods = get_class_methods( $this );
-               $class = get_class( $this );
+               $class = static::class;
                $bad = '';
                foreach ( $methods as $method ) {
                        if ( strpos( $method, 'test' ) === 0 ) {