Make a better database interactions

_tests/unit/PostTest.php

@@ -7,18 +7,25 @@ class PostTest extends \PHPUnit\Framework\TestCase
      *
      * @test
      */
-    public function showDataSuccess()
+    public function databaseInteractionsSuccess()
     {
         $post = new Post();
 
         $this->assertTrue($post->showAll());
 
-        $fields = ['category', 'expired_at', 'creator', 'content'];
-        $values = ['3', '2017-09-02', '2', 'barbarbarbarbarbarbar!'];
+        $args = [
+            'category' => 3,
+            'expired_at' => '2017-09-02',
+            'creator' => 2,
+            'content' => 'barbarbarbarbarbarbar!'
+        ];
 
-        $this->assertTrue($post->entry($fields, $values));
+        $this->assertTrue($post->entry($args));
 
-        $args = ['category' => 5, 'content' => 'foofoofoofoo!'];
+        $args = [
+            'category' => 5,
+            'content' => 'foofoofoofoo!'
+        ];
 
         $this->assertTrue($post->update($args, 1));