--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/c-c++-common/diagnostic-format-json-5.c	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,46 @@
+/* { dg-do compile } */
+/* { dg-options "-fdiagnostics-format=json" } */
+
+struct s { int color; };
+
+int test (struct s *ptr)
+{
+  return ptr->colour;
+}
+
+/* Use dg-regexp to consume the JSON output starting with
+   the innermost values, and working outwards.
+   We can't rely on any ordering of the keys.  */
+
+/* { dg-regexp "\"kind\": \"error\"" } */
+/* { dg-regexp "\"message\": \".*\"" } */
+
+/* Verify fix-it hints.  */
+
+/* { dg-regexp "\"string\": \"color\"" } */
+
+/* { dg-regexp "\"start\": \{" } */
+/* { dg-regexp "\"file\": \"\[^\n\r\"\]*diagnostic-format-json-5.c\"" } */
+/* { dg-regexp "\"line\": 8" } */
+/* { dg-regexp "\"column\": 15" } */
+
+/* { dg-regexp "\"next\": \{" } */
+/* { dg-regexp "\"file\": \"\[^\n\r\"\]*diagnostic-format-json-5.c\"" } */
+/* { dg-regexp "\"line\": 8" } */
+/* { dg-regexp "\"column\": 21" } */
+
+/* { dg-regexp "\"fixits\": \[\[\{\}, \]*\]" } */
+
+/* { dg-regexp "\"caret\": \{" } */
+/* { dg-regexp "\"file\": \"\[^\n\r\"\]*diagnostic-format-json-5.c\"" } */
+/* { dg-regexp "\"line\": 8" } */
+/* { dg-regexp "\"column\": 15" } */
+
+/* { dg-regexp "\"finish\": \{" } */
+/* { dg-regexp "\"file\": \"\[^\n\r\"\]*diagnostic-format-json-5.c\"" } */
+/* { dg-regexp "\"line\": 8" } */
+/* { dg-regexp "\"column\": 20" } */
+
+/* { dg-regexp "\"locations\": \[\[\{\}, \]*\]" } */
+/* { dg-regexp "\"children\": \[\[\]\[\]\]" } */
+/* { dg-regexp "\[\[\{\}, \]*\]" } */