Merge branch '5.4' into 6.0

* 5.4:
  Minor reword
  [FrameworkBundle] 15751 add documentation for assertThatForClient

Author: javiereguiluz

testing.rst

@@ -914,6 +914,19 @@ Browser Assertions
 ``assertBrowserCookieValueSame(string $name, string $expectedValue, string $path = '/', string $domain = null, string $message = '')``
     Asserts the given cookie in the test Client is set to the expected
     value.
+``assertThatForClient(Constraint $constraint, string $message = '')``
+    Asserts the given Constraint in the Client. Useful to use your custom asserts
+    in the same way of built-in asserts (i.e. without passing the Client as argument)::
+
+        // add this method in some custom class imported in your tests
+        protected static function assertMyOwnCustomAssert(): void
+        {
+            self::assertThatForClient(new SomeCustomConstraint());
+        }
+
+.. versionadded:: 5.4
+
+    The ``assertThatForClient()`` method was introduced in Symfony 5.4.
 
 Crawler Assertions
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