Fixes bug with json method call in Higher Order Expectations.

tests/Features/Expect/HigherOrder/methods.php

@@ -74,8 +74,19 @@ it('works with higher order tests')
     ->name()->toEqual('Has Methods')
     ->books()->each->toBeArray;
 
+it('can call the json method in higher order expectations', function () {
+    expect(new HasMethods())
+        ->getJsonContent()->json()->id->toBe(1)->toBeGreaterThan(0)
+        ->getJsonContent()->json()->email->toBe('amenophis@leherpeur.net');
+});
+
 class HasMethods
 {
+    public function getJsonContent(): string
+    {
+        return '{"id":1,"username":"amenophis","email":"amenophis@leherpeur.net"}';
+    }
+
     public function name()
     {
         return 'Has Methods';