Add DatasetInfo support class

src/Support/DatasetInfo.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Support;
+
+/**
+ * @internal
+ */
+final class DatasetInfo
+{
+    public const DATASETS_DIR_NAME = 'Datasets';
+
+    public const DATASETS_FILE_NAME = 'Datasets.php';
+
+    public static function isInsideADatasetsDirectory(string $file): bool
+    {
+        return basename(dirname($file)) === self::DATASETS_DIR_NAME;
+    }
+
+    public static function isADatasetsFile(string $file): bool
+    {
+        return basename($file) === self::DATASETS_FILE_NAME;
+    }
+
+    public static function scope(string $file): string
+    {
+        if (self::isInsideADatasetsDirectory($file)) {
+            return dirname($file, 2);
+        }
+
+        if (self::isADatasetsFile($file)) {
+            return dirname($file);
+        }
+
+        return $file;
+    }
+}

src/Support/Str.php

@@ -59,24 +59,6 @@ final class Str
         return (string) preg_replace('/[^A-Z_a-z0-9\\\\]/', '', $code);
     }
 
-    /**
-     * Return the remainder of a string after the last occurrence of a given value.
-     */
-    public static function afterLast(string $subject, string $search): string
-    {
-        if ($search === '') {
-            return $subject;
-        }
-
-        $position = strrpos($subject, $search);
-
-        if ($position === false) {
-            return $subject;
-        }
-
-        return substr($subject, $position + strlen($search));
-    }
-
     /**
      * Get the portion of a string before the last occurrence of a given value.
      */