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Diffstat (limited to 'src/test/regress/sql/json_encoding.sql')
| -rw-r--r-- | src/test/regress/sql/json_encoding.sql | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/test/regress/sql/json_encoding.sql b/src/test/regress/sql/json_encoding.sql new file mode 100644 index 0000000..d7fac69 --- /dev/null +++ b/src/test/regress/sql/json_encoding.sql @@ -0,0 +1,78 @@ +-- +-- encoding-sensitive tests for json and jsonb +-- + +-- We provide expected-results files for UTF8 (json_encoding.out) +-- and for SQL_ASCII (json_encoding_1.out). Skip otherwise. +SELECT getdatabaseencoding() NOT IN ('UTF8', 'SQL_ASCII') + AS skip_test \gset +\if :skip_test +\quit +\endif + +SELECT getdatabaseencoding(); -- just to label the results files + +-- 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; |