# name: test/sql/function/blob/base64.test
# description: Test blob base64 functions
# group: [blob]

statement ok
PRAGMA enable_verification

# test base64 encoding
query I
SELECT base64(encode(''))
----
(empty)

query I
SELECT base64(encode('a'))
----
YQ==

query I
SELECT base64(encode('ab'))
----
YWI=

query I
SELECT base64(encode('abc'))
----
YWJj

query I
SELECT base64(encode('üäabcdef'))
----
w7zDpGFiY2RlZg==

query I
SELECT base64(encode('iJWERiuhjruhwuiehr8493231'))
----
aUpXRVJpdWhqcnVod3VpZWhyODQ5MzIzMQ==

query I
SELECT base64(encode('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890'))
----
YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNERUZHSElKS0xNTk9QUVJTVFVWV1hZWjEyMzQ1Njc4OTA=

query I
SELECT to_base64(encode('base64 encoded string'));
----
YmFzZTY0IGVuY29kZWQgc3RyaW5n

# test base64 decoding round-trip
query I
SELECT from_base64(base64(encode('')))
----
(empty)

query I
SELECT from_base64(base64(encode('a')))
----
a

query I
SELECT from_base64(base64(encode('ab')))
----
ab

query I
SELECT from_base64(base64(encode('abc')))
----
abc

query I
SELECT from_base64(base64(encode('iJWERiuhjruhwuiehr8493231')))
----
iJWERiuhjruhwuiehr8493231

query I
SELECT from_base64(base64(encode('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890')))
----
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890

query I
select from_base64('AAAA');
----
\x00\x00\x00

# malformed base64
# must be multiple of 4
statement error
SELECT from_base64('ab');
----
<REGEX>:.*Conversion Error: Could not decode string.*

# unknown bytes
statement error
SELECT from_base64('üab');
----
<REGEX>:.*Conversion Error: Could not decode string.*