[Feat] Add Support Clone Collection (#156)

* feat: add support clone collection

* refactor: collection clone use native clone

- move test case to realete class test

Author: SonyPradana

src/System/Collection/AbstractCollectionImmutable.php

@@ -328,4 +328,34 @@ public function getIterator(): \Traversable
     {
         return new \ArrayIterator($this->all());
     }
+
+    public function __clone()
+    {
+        $this->collection = $this->deepClone($this->collection);
+    }
+
+    /**
+     * @param array<TKey, TValue> $collection
+     *
+     * @return array<TKey, TValue>
+     */
+    protected function deepClone($collection)
+    {
+        $clone = [];
+        foreach ($collection as $key => $value) {
+            if (is_array($value)) {
+                $clone[$key] = $this->deepClone($value);
+                continue;
+            }
+
+            if (is_object($value)) {
+                $clone[$key] = clone $value;
+                continue;
+            }
+
+            $clone[$key] = $value;
+        }
+
+        return $clone;
+    }
 }

src/System/Collection/Collection.php

@@ -243,7 +243,7 @@ public function sortKeyDesc(): self
      */
     public function clone(): Collection
     {
-        return new Collection($this->collection);
+        return clone $this;
     }
 
     /**

tests/Collection/CollectionTest.php

@@ -355,4 +355,25 @@ public function itCanByShuffle()
             $this->assertArrayHasKey($key, $coll);
         }
     }
+
+    /** @test */
+    public function itCanCloneColection()
+    {
+        $ori = new Collection([
+            'one' => 'one',
+            'two' => [
+                'one',
+                'two' => [1, 2],
+            ],
+            'three' => new Collection([]),
+        ]);
+
+        $clone = clone $ori;
+
+        $ori->set('one', 'uno');
+        $this->assertEquals('one', $clone->get('one'));
+
+        $clone->set('one', 1);
+        $this->assertEquals('uno', $ori->get('one'));
+    }
 }