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postgres/src/test/regress/sql/json_encoding.sql
Andrew Dunstan 48a78d80c8 Factor out encoding specific tests for json
This lets us remove the large alternative results files for the main
json and jsonb tests, which makes modifying those tests simpler for
committers and patch submitters.

Backpatch to 9.4 for jsonb and 9.3 for json.
2015-10-07 22:19:03 -04:00

69 lines
3.1 KiB
SQL

-- encoding-sensitive tests for json and jsonb
-- first json
-- basic unicode input
SELECT '"\u"'::json; -- ERROR, incomplete escape
SELECT '"\u00"'::json; -- ERROR, incomplete escape
SELECT '"\u000g"'::json; -- ERROR, g is not a hex digit
SELECT '"\u0000"'::json; -- OK, legal escape
SELECT '"\uaBcD"'::json; -- OK, uppercase and lower case both OK
-- handling of unicode surrogate pairs
select json '{ "a": "\ud83d\ude04\ud83d\udc36" }' -> 'a' as correct_in_utf8;
select json '{ "a": "\ud83d\ud83d" }' -> 'a'; -- 2 high surrogates in a row
select json '{ "a": "\ude04\ud83d" }' -> 'a'; -- surrogates in wrong order
select json '{ "a": "\ud83dX" }' -> 'a'; -- orphan high surrogate
select json '{ "a": "\ude04X" }' -> 'a'; -- orphan low surrogate
--handling of simple unicode escapes
select json '{ "a": "the Copyright \u00a9 sign" }' as correct_in_utf8;
select json '{ "a": "dollar \u0024 character" }' as correct_everywhere;
select json '{ "a": "dollar \\u0024 character" }' as not_an_escape;
select json '{ "a": "null \u0000 escape" }' as not_unescaped;
select json '{ "a": "null \\u0000 escape" }' as not_an_escape;
select json '{ "a": "the Copyright \u00a9 sign" }' ->> 'a' as correct_in_utf8;
select json '{ "a": "dollar \u0024 character" }' ->> 'a' as correct_everywhere;
select json '{ "a": "dollar \\u0024 character" }' ->> 'a' as not_an_escape;
select json '{ "a": "null \u0000 escape" }' ->> 'a' as fails;
select json '{ "a": "null \\u0000 escape" }' ->> 'a' as not_an_escape;
-- then jsonb
-- basic unicode input
SELECT '"\u"'::jsonb; -- ERROR, incomplete escape
SELECT '"\u00"'::jsonb; -- ERROR, incomplete escape
SELECT '"\u000g"'::jsonb; -- ERROR, g is not a hex digit
SELECT '"\u0045"'::jsonb; -- OK, legal escape
SELECT '"\u0000"'::jsonb; -- ERROR, we don't support U+0000
-- use octet_length here so we don't get an odd unicode char in the
-- output
SELECT octet_length('"\uaBcD"'::jsonb::text); -- OK, uppercase and lower case both OK
-- handling of unicode surrogate pairs
SELECT octet_length((jsonb '{ "a": "\ud83d\ude04\ud83d\udc36" }' -> 'a')::text) AS correct_in_utf8;
SELECT jsonb '{ "a": "\ud83d\ud83d" }' -> 'a'; -- 2 high surrogates in a row
SELECT jsonb '{ "a": "\ude04\ud83d" }' -> 'a'; -- surrogates in wrong order
SELECT jsonb '{ "a": "\ud83dX" }' -> 'a'; -- orphan high surrogate
SELECT jsonb '{ "a": "\ude04X" }' -> 'a'; -- orphan low surrogate
-- handling of simple unicode escapes
SELECT jsonb '{ "a": "the Copyright \u00a9 sign" }' as correct_in_utf8;
SELECT jsonb '{ "a": "dollar \u0024 character" }' as correct_everywhere;
SELECT jsonb '{ "a": "dollar \\u0024 character" }' as not_an_escape;
SELECT jsonb '{ "a": "null \u0000 escape" }' as fails;
SELECT jsonb '{ "a": "null \\u0000 escape" }' as not_an_escape;
SELECT jsonb '{ "a": "the Copyright \u00a9 sign" }' ->> 'a' as correct_in_utf8;
SELECT jsonb '{ "a": "dollar \u0024 character" }' ->> 'a' as correct_everywhere;
SELECT jsonb '{ "a": "dollar \\u0024 character" }' ->> 'a' as not_an_escape;
SELECT jsonb '{ "a": "null \u0000 escape" }' ->> 'a' as fails;
SELECT jsonb '{ "a": "null \\u0000 escape" }' ->> 'a' as not_an_escape;