Merge pull request #31 from TheDragonCode/2.x

Added `merge` method

Author: Andrey Helldar

src/DataTransferObject.php

@@ -35,8 +35,7 @@ abstract class DataTransferObject implements Contract
      */
     public function __construct(array $items = [])
     {
-        $this->setMap($items);
-        $this->setItems($items);
+       $this->merge($items);
     }
 
     public function get(string $key)
@@ -59,6 +58,17 @@ public function set(string $key, $value): DataTransferObject
         return $this;
     }
 
+    /**
+     * @throws \ReflectionException
+     */
+    public function merge(array $items): DataTransferObject
+    {
+        $this->setMap($items);
+        $this->setItems($items);
+
+        return $this;
+    }
+
     /**
      * @throws ReflectionException
      *

tests/Unit/MergeTest.php

@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Unit;
+
+use Tests\Fixtures\Map;
+use Tests\TestCase;
+
+class MergeTest extends TestCase
+{
+    public function testMerge()
+    {
+        $object = Map::make([
+            'wa' => [
+                'sd' => $this->foo,
+            ],
+
+            'qwe.rty' => $this->bar,
+            'baz'     => $this->baz,
+        ]);
+
+        $this->assertSame($this->foo, $object->foo);
+        $this->assertSame($this->bar, $object->bar);
+        $this->assertSame($this->baz, $object->baz);
+
+        $object->merge([
+            'wa' => [
+                'sd' => 'Some 1',
+            ],
+
+            'qwe.rty' => 'Some 2',
+            'baz'     => 'Some 3',
+        ]);
+
+        $this->assertSame('Some 1', $object->foo);
+        $this->assertSame('Some 2', $object->bar);
+        $this->assertSame('Some 3', $object->baz);
+    }
+}