Added httpOnly cookie ResultMatcher

spring-test/src/main/java/org/springframework/test/web/servlet/result/CookieResultMatchers.java

@@ -198,4 +198,14 @@ public class CookieResultMatchers {
 		};
 	}
 
+	/**
+	 * Assert whether the cookie must be httpOnly.
+	 */
+	public ResultMatcher httpOnly(final String name, final boolean httpOnly) {
+		return result -> {
+			Cookie cookie = result.getResponse().getCookie(name);
+			assertEquals("Response cookie httpOnly", httpOnly, cookie.isHttpOnly());
+		};
+	}
+
 }