add tests for Support\Optional

tests/Support/SupportOptionalTest.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Illuminate\Tests\Support;
+
+use PHPUnit\Framework\TestCase;
+use Illuminate\Support\Optional;
+
+class SupportOptionalTest extends TestCase
+{
+    public function testGetExistItemOnObject()
+    {
+        $expected = 'test';
+
+        $targetObj = new \stdClass;
+        $targetObj->item = $expected;
+
+        $optional = new Optional($targetObj);
+
+        $this->assertEquals($expected, $optional->item);
+    }
+
+    public function testGetNotExistItemOnObject()
+    {
+        $targetObj = new \stdClass;
+
+        $optional = new Optional($targetObj);
+
+        $this->assertNull($optional->item);
+    }
+
+    public function testGetExistItemOnArray()
+    {
+        $expected = 'test';
+
+        $targetArr = [
+            'item' => $expected,
+        ];
+
+        $optional = new Optional($targetArr);
+
+        $this->assertEquals($expected, $optional['item']);
+    }
+
+    public function testGetNotExistItemOnArray()
+    {
+        $targetObj = [];
+
+        $optional = new Optional($targetObj);
+
+        $this->assertNull($optional['item']);
+    }
+}