SourceFilter test coverage

- Extracts an `AbstractSouceFilterTestCase` as both SourceMapper and
  SourceFilter have the same requirements.
- Refactor test to use factory methods to reduce boilerplate.
- Introduces tests for wildcards, globstars and question marks.

Author: dantleech

composer.json

@@ -73,6 +73,7 @@
         "files": [
             "tests/_files/deprecation-trigger/trigger_deprecation.php",
             "tests/unit/Event/AbstractEventTestCase.php",
+            "tests/unit/TextUI/AbstractSouceFilterTestCase.php",
             "tests/unit/Framework/MockObject/TestDoubleTestCase.php",
             "tests/unit/Metadata/Parser/AttributeParserTestCase.php",
             "tests/unit/Framework/Assert/assertContainsOnlyArrayTest.php",

composer.lock

@@ -0,0 +1,62 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of PHPUnit.
+ *
+ * (c) Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PHPUnit\TextUI\Configuration;
+
+use const DIRECTORY_SEPARATOR;
+use function ltrim;
+use function realpath;
+use function str_replace;
+use PHPUnit\Framework\TestCase;
+
+abstract class AbstractSouceFilterTestCase extends TestCase
+{
+    protected static function createSource(
+        ?FilterDirectoryCollection $includeDirectories = null,
+        ?FilterDirectoryCollection $excludeDirectories = null,
+        ?FileCollection $includeFiles = null,
+        ?FileCollection $excludeFiles = null,
+    ): Source {
+        return new Source(
+            null,
+            false,
+            $includeDirectories ?? FilterDirectoryCollection::fromArray([]),
+            $includeFiles ?? FileCollection::fromArray([]),
+            $excludeDirectories ?? FilterDirectoryCollection::fromArray([]),
+            $excludeFiles ?? FileCollection::fromArray([]),
+            false,
+            false,
+            false,
+            false,
+            false,
+            false,
+            false,
+            false,
+            false,
+            [
+                'functions' => [],
+                'methods'   => [],
+            ],
+            false,
+            false,
+            false,
+        );
+    }
+
+    protected static function fixturePath(?string $subPath = null): string
+    {
+        $path = realpath(__DIR__ . '/../..') . '/_files/source-filter';
+
+        if ($subPath !== null) {
+            $path = $path . '/' . ltrim($subPath, '/');
+        }
+
+        return str_replace('/', DIRECTORY_SEPARATOR, $path);
+    }
+}