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;
+    }
+}