Add regression test for trait (#748)

specs/use/use-trait.php

@@ -0,0 +1,83 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the humbug/php-scoper package.
+ *
+ * Copyright (c) 2017 Théo FIDRY <[email protected]>,
+ *                    Pádraic Brady <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+return [
+    'meta' => [
+        'title' => 'Use statements for traits',
+        // Default values. If not specified will be the one used
+        'prefix' => 'Humbug',
+
+        'expose-global-constants' => true,
+        'expose-global-classes' => false,
+        'expose-global-functions' => true,
+        'expose-namespaces' => [],
+        'expose-constants' => [],
+        'expose-classes' => [],
+        'expose-functions' => [],
+
+        'exclude-namespaces' => [],
+        'exclude-constants' => [],
+        'exclude-classes' => [],
+        'exclude-functions' => [],
+
+        'expected-recorded-classes' => [],
+        'expected-recorded-functions' => [],
+    ],
+
+    // https://github.com/humbug/php-scoper/issues/455
+    'Use statement of a FQCN trait' => <<<'PHP'
+    <?php
+    
+    namespace IvoPetkov;
+    
+    class HTML5DOMDocument {
+        use \IvoPetkov\Internal\QuerySelector;
+    }
+    
+    ----
+    <?php
+    
+    namespace Humbug\IvoPetkov;
+    
+    class HTML5DOMDocument
+    {
+        use \Humbug\IvoPetkov\Internal\QuerySelector;
+    }
+
+    PHP,
+
+    'Use statement of an imported trait' => <<<'PHP'
+    <?php
+    
+    namespace IvoPetkov;
+    
+    use IvoPetkov\Internal\QuerySelector;
+    
+    class HTML5DOMDocument {
+        use QuerySelector;
+    }
+    
+    ----
+    <?php
+    
+    namespace Humbug\IvoPetkov;
+    
+    use Humbug\IvoPetkov\Internal\QuerySelector;
+    class HTML5DOMDocument
+    {
+        use QuerySelector;
+    }
+
+    PHP,
+];