chr.slt

# Copyright Materialize, Inc. and contributors. All rights reserved.
#
# Use of this software is governed by the Business Source License
# included in the LICENSE file at the root of this repository.
#
# As of the Change Date specified in that file, in accordance with
# the Business Source License, use of this software will be governed
# by the Apache License, Version 2.0.

# Return NULL for NULL input
query T
SELECT chr(NULL)
----
NULL

query error null character not permitted
SELECT chr(0)

# Match behavior of Postgres 14
query error requested character too large for encoding: -1
SELECT chr(-1)

# i32.MIN
query error requested character too large for encoding: -2147483648
SELECT chr(-2147483648)

# Test non-printable characters
query T
SELECT chr(1) = E'\u0001'
----
true

query T
SELECT chr(2) = E'\u0002'
----
true

query T
SELECT chr(10) = E'\u000a'
----
true

query T
SELECT chr(126)
----
~

query T
SELECT chr(127) = E'\u007f'
----
true

# Check if non-ASCII characters work
query T
SELECT chr(128) = E'\u0080'
----
true

# Test random basic multilingual plane (BMP) character
query T
SELECT chr(9233)
----
␑

# Last code point before the surrogates
query T
SELECT chr(55295)
----
퟿

# Surrogate characters should not be encoded in UTF-8
# 55296 = U+D800
query error requested character not valid for encoding: 55296
SELECT chr(55296)

# Last surrogate character
# 57343 = U+DFFF
query error requested character not valid for encoding: 57343
SELECT chr(57343)

query T
SELECT chr(57344)
----


# Test full and half width characters
query T
SELECT chr(65318)
----
Ｆ

query T
SELECT chr(65383)
----
ｧ

# Test supplementary multilingual plane (SMP / Plane 1) characters
query T
SELECT chr(66312)
----
𐌈

query T
SELECT chr(92330)
----
𖢪

query T
SELECT chr(128579)
----
🙃

# Test composing regional indicator symbols
query T
SELECT chr(127463) || chr(127479);
----
🇧🇷

# Test supplementary ideographic plane (SIP / Plane 2) characters
query T
SELECT chr(194564)
----
你

# Test last valid Unicode code point
query T
SELECT chr(1114111) = E'\U0010FFFF'
----
true

# First invalid code point
query error requested character too large for encoding: 1114112
SELECT chr(1114112)

# i32.MAX
query error requested character too large for encoding: 2147483647
SELECT chr(2147483647)