use getArrayCopy() for ArrayIterator

Author: samsonasik

src/Finder.php

@@ -4,6 +4,7 @@
 
 namespace ArrayLookup;
 
+use ArrayIterator;
 use Traversable;
 use Webmozart\Assert\Assert;
 
@@ -37,6 +38,19 @@ public static function first(iterable $data, callable $filter): mixed
         return null;
     }
 
+    /**
+     * @param Traversable<mixed, mixed> $traversable
+     * @return mixed[]
+     */
+    private static function resolveArrayFromTraversable(Traversable $traversable): array
+    {
+        if ($traversable instanceof ArrayIterator) {
+            return $traversable->getArrayCopy();
+        }
+
+        return iterator_to_array($traversable);
+    }
+
     /**
      * @param mixed[]|iterable        $data
      * @param callable(mixed $datum): bool $filter
@@ -45,7 +59,7 @@ public static function last(iterable $data, callable $filter): mixed
     {
         // convert to array when data is Traversable instance
         if ($data instanceof Traversable) {
-            $data = iterator_to_array($data);
+            $data = self::resolveArrayFromTraversable($data);
         }
 
         // ensure data is array for end(), key(), current(), prev() usage

tests/FinderTest.php

@@ -4,6 +4,7 @@
 
 namespace ArrayLookup\Tests;
 
+use ArrayIterator;
 use ArrayLookup\Finder;
 use ArrayObject;
 use PHPUnit\Framework\TestCase;
@@ -34,16 +35,6 @@ public function firstDataProvider(): array
                 static fn($datum): bool => $datum === 1000,
                 null,
             ],
-            [
-                new ArrayObject([1, 2, 3]),
-                static fn($datum): bool => $datum === 2,
-                2,
-            ],
-            [
-                new ArrayObject([1, "1", 3]),
-                static fn($datum): bool => $datum === 1000,
-                null,
-            ],
         ];
     }
 
@@ -71,6 +62,16 @@ public function lastDataProvider(): array
                 static fn($datum): bool => $datum < 5,
                 null,
             ],
+            [
+                new ArrayIterator([6, 7, 8, 9]),
+                static fn($datum): bool => $datum > 5,
+                9,
+            ],
+            [
+                new ArrayIterator([6, 7, 8, 9]),
+                static fn($datum): bool => $datum < 5,
+                null,
+            ],
             [
                 new ArrayObject([6, 7, 8, 9]),
                 static fn($datum): bool => $datum > 5,