From 79828f7543f355180c6225442404dd833a0252a2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20M=C3=B6ller?= <am@localheinz.com>
Date: Wed, 27 Dec 2017 19:43:31 +0100
Subject: [PATCH] Enhancement: Assert that key is removed when value is  null

---
 tests/Composer/Test/Json/JsonManipulatorTest.php | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/tests/Composer/Test/Json/JsonManipulatorTest.php b/tests/Composer/Test/Json/JsonManipulatorTest.php
index e66e9aac2..05de454ca 100644
--- a/tests/Composer/Test/Json/JsonManipulatorTest.php
+++ b/tests/Composer/Test/Json/JsonManipulatorTest.php
@@ -2310,6 +2310,22 @@ class JsonManipulatorTest extends TestCase
 ', $manipulator->getContents());
     }
 
+    public function testRemoveMainKeyRemovesKeyWhereValueIsNull()
+    {
+        $manipulator = new JsonManipulator(json_encode(array(
+            'foo' => 9000,
+            'bar' => null,
+        )));
+
+        $manipulator->removeMainKey('bar');
+
+        $expected = json_encode(array(
+            'foo' => 9000,
+        ));
+
+        $this->assertJsonStringEqualsJsonString($expected, $manipulator->getContents());
+    }
+
     public function testIndentDetection()
     {
         $manipulator = new JsonManipulator('{