deprecation: blacklist and blacklist_files are now deprecated.

Since the phpunit/php-code-coverage isn't able to exclude any folder from version 11, we must check that we are still able to work with blacklist.

A specfic error message has been added to explain how to continue using blacklist parameters to users.

Also the default blacklist option value was changed, it's now an empty array.

spec/Listener/CodeCoverageListenerSpec.php

@@ -35,7 +35,7 @@ public function let(ConsoleIO $io, Driver $driver)
     public function it_can_process_all_directory_filtering_options(SuiteEvent $event)
     {
         $this->setOptions([
-            'blacklist' => [
+            'whitelist' => [
                 'src',
                 ['directory' => 'src', 'suffix' => 'Spec.php', 'prefix' => 'Get'],
                 ['directory' => 'src', 'suffix' => 'Test.php'],

src/Listener/CodeCoverageListener.php

@@ -69,7 +69,7 @@ public function __construct(ConsoleIO $io, CodeCoverage $coverage, array $report
         $this->reports = $reports;
         $this->options = [
             'whitelist' => ['src', 'lib'],
-            'blacklist' => ['test', 'vendor', 'spec'],
+            'blacklist' => [],
             'whitelist_files' => [],
             'blacklist_files' => [],
             'output' => ['html' => 'coverage'],
@@ -159,16 +159,31 @@ public function beforeSuite(SuiteEvent $event): void
             }
         }
 
+        $filter->includeFiles($this->options['whitelist_files']);
+
+        if ((!empty($this->options['blacklist_files']) || !empty($this->options['blacklist']))
+            && (!method_exists($filter, 'excludeFile') || !method_exists($filter, 'excludeDirectory'))
+        ) {
+            throw new \RuntimeException(<<<TXT
+                You are using "blacklist" or "blacklist_files" option parameter.
+                Those parameters are now deprecated and will be removed in the
+                next major release of this library.
+
+                To be able to continue using those parameters, you must explicitely
+                install phpunit/php-code-coverage v10.x in your composer.json file:
+
+                compose require phpunit/php-code-coverage "^10.0"
+            TXT);
+        }
+
         foreach ($this->options['blacklist'] as $option) {
             $settings = $this->filterDirectoryParams($option);
-            foreach ((new FileIteratorFacade)->getFilesAsArray($directory, $suffix, $prefix) as $file) {
+            foreach ((new FileIteratorFacade())->getFilesAsArray($directory, $suffix, $prefix) as $file) {
                 $filter->excludeFile($file);
             }
             $filter->excludeDirectory($settings['directory'], $settings['suffix'], $settings['prefix']);
         }
 
-        $filter->includeFiles($this->options['whitelist_files']);
-
         foreach ($this->options['blacklist_files'] as $option) {
             $filter->excludeFile($option);
         }