1 files changed, 155 insertions, 0 deletions
diff --git a/test/basexx1.test b/test/basexx1.test
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+# 2022 November 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix basexx
+
+if {[catch {load_static_extension db basexx} error]} {
+  puts "Skipping basexx tests, hit load error: $error"
+  finish_test; return
+}
+
+# Empty blobs encode to empty strings.
+do_execsql_test 100 {
+  SELECT base64(x'')||base85(x'');
+} {{}}
+
+# Empty strings decode to empty blobs.
+do_execsql_test 101 {
+  SELECT hex(x'01'||base64('')||base85('')||x'02');
+} {0102}
+
+# Basic base64 encoding
+do_execsql_test 102 {
+  SELECT base64(x'000102030405');
+  SELECT base64(x'0001020304');
+  SELECT base64(x'00010203');
+} {{AAECAwQF
+} {AAECAwQ=
+} {AAECAw==
+}}
+
+# Basic base64 decoding with pad chars
+do_execsql_test 103 {
+  SELECT hex(base64('AAECAwQF'));
+  SELECT hex(base64('AAECAwQ='));
+  SELECT hex(base64('AAECAw=='));
+} {000102030405 0001020304 00010203}
+
+# Basic base64 decoding without pad chars and with whitespace
+do_execsql_test 104 {
+  SELECT hex(base64(' AAECAwQF '));
+  SELECT hex(base64(' AAECAwQ'));
+  SELECT hex(base64('AAECAw '));
+} {000102030405 0001020304 00010203}
+
+# Basic base85 encoding
+do_execsql_test 105 {
+  SELECT base85(x'000102030405');
+  SELECT base85(x'0001020304');
+  SELECT base85(x'00010203');
+} {{##/2,#2/
+} {##/2,#*
+} {##/2,
+}}
+
+# Basic base85 decoding with and without whitespace
+do_execsql_test 106 {
+  SELECT hex(base85('##/2,#2/'));
+  SELECT hex(base85('##/2,#*'));
+  SELECT hex(base85('##/2,'));
+  SELECT hex(base85(' ##/2,#2/ '));
+  SELECT hex(base85(' ##/2,#*'));
+  SELECT hex(base85('##/2, '));
+} {000102030405 0001020304 00010203 000102030405 0001020304 00010203}
+
+# Round-trip some random blobs.
+do_execsql_test 107 {
+  CREATE TEMP TABLE rb( len int, b blob ) STRICT;
+  INSERT INTO rb(len) VALUES (1),(2),(3),(4),(5),(150),(151),(152),(153),(1054);
+  UPDATE rb SET b = randomblob(len);
+  SELECT len, base64(base64(b))=b, base85(base85(b))=b
+  FROM rb ORDER BY len;
+} {1 1 1 2 1 1 3 1 1 4 1 1 5 1 1 150 1 1 151 1 1 152 1 1 153 1 1 1054 1 1}
+
+# Same round-trip but with space or junk prepended and/or appended or not.
+do_execsql_test 108 {
+  CREATE TEMP TABLE junk(j text, rank int);
+  INSERT INTO junk VALUES ('',0),(' ',1),('~',2);
+  SELECT len, base64(j.j||base64(b)||j.j)=b, base85(j.j||base85(b)||j.j)=b
+  FROM rb r, junk j WHERE j.rank=(r.len+r.len/25)%3 ORDER BY len;
+} {1 1 1 2 1 1 3 1 1 4 1 1 5 1 1 150 1 1 151 1 1 152 1 1 153 1 1 1054 1 1}
+
+# Exercise the fail-on-too-large result feature.
+
+set inLimit [sqlite3_limit db SQLITE_LIMIT_LENGTH -1]
+sqlite3_limit db SQLITE_LIMIT_LENGTH 1300
+
+do_catchsql_test 109 {
+  SELECT len, base64(b) FROM rb WHERE len>200;
+} {1 {blob expanded to base64 too big}}
+
+do_catchsql_test 110 {
+  SELECT len, base85(b) FROM rb WHERE len>200;
+} {1 {blob expanded to base85 too big}}
+
+do_catchsql_test 111 {
+  SELECT length(base85(b))=1335 FROM rb WHERE len=1054;
+} {1 {blob expanded to base85 too big}}
+
+sqlite3_limit db SQLITE_LIMIT_LENGTH $inLimit
+
+# Exercise is_base85(t)
+
+do_execsql_test 112 {
+  SELECT is_base85(' '||base85(x'123456')||char(10)),
+  is_base85('#$%&*+,-./0123456789:;<=>?@'
+   ||'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+   ||'[\]^_`'
+   ||'abcdefghijklmnopqrstuvwxyz'),
+  is_base85('!'), is_base85('"'), is_base85(''''), is_base85('('),
+  is_base85(')'), is_base85(char(123)), is_base85('|'), is_base85(char(125)),
+  is_base85('~'), is_base85(char(127));
+} {1 1 0 0 0 0 0 0 0 0 0 0}
+
+do_execsql_test 113 {
+  SELECT is_base85(NULL) IS NULL;
+} {1}
+
+do_catchsql_test 114 {
+  SELECT is_base85(1);
+} {1 {is_base85 accepts only text or NULL}}
+
+do_catchsql_test 115 {
+  SELECT is_base85(1.1);
+} {1 {is_base85 accepts only text or NULL}}
+
+do_catchsql_test 116 {
+  SELECT is_base85(x'00');
+} {1 {is_base85 accepts only text or NULL}}
+
+# Round-trip many bigger random blobs.
+
+do_execsql_test 117 {
+  CREATE TABLE bs(b blob, num);
+  INSERT INTO bs SELECT randomblob(4000 + n%3), n 
+   FROM ( 
+     WITH RECURSIVE seq(n) AS (
+      VALUES(1) UNION ALL SELECT n+1
+      FROM seq WHERE n<100
+     ) SELECT n FROM seq);
+  SELECT num FROM bs WHERE base64(base64(b))!=b;
+  SELECT num FROM bs WHERE base85(base85(b))!=b;
+} {}
+
+finish_test