Fix a PHPUnit deprecation

javiereguiluz · javiereguiluz · commit d485b85259ca · 2020-09-22T15:47:05.000+02:00
diff --git a/form/unit_testing.rst b/form/unit_testing.rst
@@ -159,7 +159,7 @@ make sure the ``FormRegistry`` uses the created instance::
     {
         private $objectManager;
 
-        protected function setUp()
+        protected function setUp(): void
         {
             // mock any dependencies
             $this->objectManager = $this->createMock(ObjectManager::class);

Original file line number	Diff line number	Diff line change
@@ -159,7 +159,7 @@ make sure the ``FormRegistry`` uses the created instance::
`159`	`159`	`{`
`160`	`160`	`private $objectManager;`
`161`	`161`
`162`		`- protected function setUp()`
	`162`	`+ protected function setUp(): void`
`163`	`163`	`{`
`164`	`164`	`// mock any dependencies`
`165`	`165`	`$this->objectManager = $this->createMock(ObjectManager::class);`