Keep tests in json format

So the results are typed
2020-08-24 18:37:55 +02:00
parent d592cc3050
commit 4d280e02b0
55 changed files with 55 additions and 329 deletions
--- a/tests_dir/select_people_join_rooms.result
+++ b/tests_dir/select_people_join_rooms.result
@@ -1,5 +1 @@
-id,name,chief,age,room,phone
---,---,---,---,"0","1515"
---,---,---,---,"3","1601"
---,---,---,---,"6","1424"
---,---,---,---,"7","1294"
+{"content": [[null, null, null, null, 0, 1515], [null, null, null, null, 7, 1294], [null, null, null, null, 3, 1601], [null, null, null, null, 6, 1424]], "header": ["id", "name", "chief", "age", "room", "phone"]}