adding unwatch() method

Author: syffer

README.md

@@ -82,7 +82,7 @@ Redis command                                    | Description
 
 It mocks **MULTI**, **DISCARD** and **EXEC** commands but without any transaction behaviors, they just make the interface fluent and return each command results.
 **PIPELINE** and **EXECUTE** pseudo commands (client pipelining) are also mocked.
-**EVAL**, **EVALSHA** and **WATCH** are just stubs—they won't execute anything  
+**EVAL**, **EVALSHA**, **WATCH** and **UNWATCH** are just stubs—they won't execute anything  
 
 ## Usage
 

src/M6Web/Component/RedisMock/RedisMock.php

@@ -1161,6 +1161,11 @@ public function watch($key)
         return new Status('OK');
     }
 
+    public function unwatch()
+    {
+        return new Status('OK');
+    }
+
     // Client pipeline
 
     public function pipeline()

tests/units/RedisMock.php

@@ -1758,6 +1758,16 @@ public function testWatch()
                 ->isInstanceOf(Status::class);
     }
 
+    public function testUnwatch()
+    {
+        $redisMock = new Redis();
+        $redisMock->set('test', 'something');
+
+        $this->assert
+            ->object($redisMock->unwatch())
+            ->isInstanceOf(Status::class);
+    }
+
     public function testDbsize()
     {
         $redisMock = new Redis();