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