From 3028cc209514c5225b8101af7f74fff030241a39 Mon Sep 17 00:00:00 2001
From: borNfreee <b0rn@list.ru>
Date: Mon, 18 Feb 2019 22:42:41 +0300
Subject: [PATCH] Add tests to check binary coalesce is not mutated by null
 assign coalesce mutator

---
 tests/Mutator/Operator/AssignCoalesceTest.php | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tests/Mutator/Operator/AssignCoalesceTest.php b/tests/Mutator/Operator/AssignCoalesceTest.php
index 4401689e2..929fc46c0 100644
--- a/tests/Mutator/Operator/AssignCoalesceTest.php
+++ b/tests/Mutator/Operator/AssignCoalesceTest.php
@@ -93,5 +93,14 @@ public function provideMutationCases(): \Generator
 $a['value'] = $var;
 PHP
         ];
+
+        yield 'Does not mutate coalesce binary operator' => [
+            <<<'PHP'
+<?php
+
+$a['value'] = $foo ?? $bar;
+PHP
+            ,
+        ];
     }
 }