Fix storing page source to disk when source assertions fail. (#976)

Author: calmdev

src/Concerns/ProvidesBrowser.php

@@ -174,8 +174,8 @@ protected function storeConsoleLogsFor($browsers)
     protected function storeSourceLogsFor($browsers)
     {
         $browsers->each(function ($browser, $key) {
-            if (property_exists($browser, 'makesSourceAssertion') &&
-                $browser->makesSourceAssertion) {
+            if (property_exists($browser, 'madeSourceAssertion') &&
+                $browser->madeSourceAssertion) {
                 $browser->storeSource($this->getCallerName().'-'.$key);
             }
         });