Add name to description for named datasets

tests/Unit/Datasets.php

@@ -0,0 +1,13 @@
+<?php
+
+use Pest\Datasets;
+
+it('show the names of named datasets in their description', function () {
+    $descriptions = array_keys(Datasets::resolve('test description', [
+        'one' => [1],
+        'two' => [[2]],
+    ]));
+
+    $this->assertSame('test description with data set "one" (1)', $descriptions[0]);
+    $this->assertSame('test description with data set "two" (array(2))', $descriptions[1]);
+});