Add setWhitelistedFiles() to driver interface

Author: sebastianbergmann

src/Driver/Driver.php

@@ -50,4 +50,9 @@ public function stop(): array;
      * Returns true if whitelist filtering is supported.
      */
     public function supportsWhitelistFiltering(): bool;
+
+    /**
+     * Sets the whitelist.
+     */
+    public function setWhitelistedFiles(array $whitelistedFiles): void;
 }

src/Driver/PHPDBG.php

@@ -82,6 +82,14 @@ public function supportsWhitelistFiltering(): bool
         return false;
     }
 
+    /**
+     * @throws RuntimeException
+     */
+    public function setWhitelistedFiles(array $whitelistedFiles): void
+    {
+        throw new RuntimeException('PHPDBG does not support whitelist filtering');
+    }
+
     /**
      * Convert phpdbg based data into the format CodeCoverage expects
      */

src/Driver/Xdebug.php

@@ -74,11 +74,11 @@ public function supportsWhitelistFiltering(): bool
         return $this->hasSupportForWhitelistFiltering;
     }
 
-    /**
-     * @param array $data
-     *
-     * @return array
-     */
+    public function setWhitelistedFiles(array $whitelistedFiles): void
+    {
+        \xdebug_set_filter(XDEBUG_FILTER_CODE_COVERAGE, XDEBUG_PATH_WHITELIST, $whitelistedFiles);
+    }
+
     private function cleanup(array $data): array
     {
         foreach (\array_keys($data) as $file) {