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libsql/libsql-sqlite3/test/enc2.test
2023-10-16 13:58:16 +02:00

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# 2002 May 24
#
# 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.
#
#***********************************************************************
# This file implements regression tests for SQLite library. The focus of
# this file is testing the SQLite routines used for converting between the
# various suported unicode encodings (UTF-8, UTF-16, UTF-16le and
# UTF-16be).
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
# If UTF16 support is disabled, ignore the tests in this file
#
ifcapable {!utf16} {
finish_test
return
}
# The rough organisation of tests in this file is:
#
# enc2.1.*: Simple tests with a UTF-8 db.
# enc2.2.*: Simple tests with a UTF-16LE db.
# enc2.3.*: Simple tests with a UTF-16BE db.
# enc2.4.*: Test that attached databases must have the same text encoding
# as the main database.
# enc2.5.*: Test the behavior of the library when a collation sequence is
# not available for the most desirable text encoding.
# enc2.6.*: Similar test for user functions.
# enc2.7.*: Test that the VerifyCookie opcode protects against assuming the
# wrong text encoding for the database.
# enc2.8.*: Test sqlite3_complete16()
#
db close
# Return the UTF-8 representation of the supplied UTF-16 string $str.
proc utf8 {str} {
# If $str ends in two 0x00 0x00 bytes, knock these off before
# converting to UTF-8 using TCL.
binary scan $str \c* vals
if {[lindex $vals end]==0 && [lindex $vals end-1]==0} {
set str [binary format \c* [lrange $vals 0 end-2]]
}
set r [encoding convertfrom unicode $str]
return $r
}
#
# This proc contains all the tests in this file. It is run
# three times. Each time the file 'test.db' contains a database
# with the following contents:
set dbcontents {
CREATE TABLE t1(a PRIMARY KEY, b, c);
INSERT INTO t1 VALUES('one', 'I', 1);
}
# This proc tests that we can open and manipulate the test.db
# database, and that it is possible to retreive values in
# various text encodings.
#
proc run_test_script {t enc} {
# Open the database and pull out a (the) row.
do_test $t.1 {
sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
execsql {SELECT * FROM t1}
} {one I 1}
# Insert some data
do_test $t.2 {
execsql {INSERT INTO t1 VALUES('two', 'II', 2);}
execsql {SELECT * FROM t1}
} {one I 1 two II 2}
# Insert some data
do_test $t.3 {
execsql {
INSERT INTO t1 VALUES('three','III',3);
INSERT INTO t1 VALUES('four','IV',4);
INSERT INTO t1 VALUES('five','V',5);
}
execsql {SELECT * FROM t1}
} {one I 1 two II 2 three III 3 four IV 4 five V 5}
# Use the index
do_test $t.4 {
execsql {
SELECT * FROM t1 WHERE a = 'one';
}
} {one I 1}
do_test $t.5 {
execsql {
SELECT * FROM t1 WHERE a = 'four';
}
} {four IV 4}
ifcapable subquery {
do_test $t.6 {
execsql {
SELECT * FROM t1 WHERE a IN ('one', 'two');
}
} {one I 1 two II 2}
}
# Now check that we can retrieve data in both UTF-16 and UTF-8
do_test $t.7 {
set STMT [sqlite3_prepare $DB "SELECT a FROM t1 WHERE c>3;" -1 TAIL]
sqlite3_step $STMT
sqlite3_column_text $STMT 0
} {four}
do_test $t.8 {
sqlite3_step $STMT
utf8 [sqlite3_column_text16 $STMT 0]
} {five}
do_test $t.9 {
sqlite3_finalize $STMT
} SQLITE_OK
ifcapable vacuum {
execsql VACUUM
}
do_test $t.10 {
db eval {PRAGMA encoding}
} $enc
}
# The three unicode encodings understood by SQLite.
set encodings [list UTF-8 UTF-16le UTF-16be]
set sqlite_os_trace 0
set i 1
foreach enc $encodings {
forcedelete test.db
sqlite3 db test.db
db eval "PRAGMA encoding = \"$enc\""
execsql $dbcontents
do_test enc2-$i.0.1 {
db eval {PRAGMA encoding}
} $enc
do_test enc2-$i.0.2 {
db eval {PRAGMA encoding=UTF8}
db eval {PRAGMA encoding}
} $enc
do_test enc2-$i.0.3 {
db eval {PRAGMA encoding=UTF16le}
db eval {PRAGMA encoding}
} $enc
do_test enc2-$i.0.4 {
db eval {PRAGMA encoding=UTF16be}
db eval {PRAGMA encoding}
} $enc
db close
run_test_script enc2-$i $enc
db close
incr i
}
# Test that it is an error to try to attach a database with a different
# encoding to the main database.
ifcapable attach {
do_test enc2-4.1 {
forcedelete test.db
sqlite3 db test.db
db eval "PRAGMA encoding = 'UTF-8'"
db eval "CREATE TABLE abc(a, b, c);"
} {}
do_test enc2-4.2 {
forcedelete test2.db
sqlite3 db2 test2.db
db2 eval "PRAGMA encoding = 'UTF-16'"
db2 eval "CREATE TABLE abc(a, b, c);"
} {}
do_test enc2-4.3 {
catchsql {
ATTACH 'test2.db' as aux;
}
} {1 {attached databases must use the same text encoding as main database}}
db2 close
db close
}
# The following tests - enc2-5.* - test that SQLite selects the correct
# collation sequence when more than one is available.
set ::values [list one two three four five]
set ::test_collate_enc INVALID
proc test_collate {enc lhs rhs} {
set ::test_collate_enc $enc
set l [lsearch -exact $::values $lhs]
set r [lsearch -exact $::values $rhs]
set res [expr $l - $r]
# puts "enc=$enc lhs=$lhs/$l rhs=$rhs/$r res=$res"
return $res
}
forcedelete test.db
sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
do_test enc2-5.0 {
execsql {
CREATE TABLE t5(a);
INSERT INTO t5 VALUES('one');
INSERT INTO t5 VALUES('two');
INSERT INTO t5 VALUES('five');
INSERT INTO t5 VALUES('three');
INSERT INTO t5 VALUES('four');
}
} {}
do_test enc2-5.1 {
add_test_collate $DB 1 1 1
set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate;}]
lappend res $::test_collate_enc
} {one two three four five UTF-8}
do_test enc2-5.2 {
add_test_collate $DB 0 1 0
set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
lappend res $::test_collate_enc
} {one two three four five UTF-16LE}
do_test enc2-5.3 {
add_test_collate $DB 0 0 1
set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
lappend res $::test_collate_enc
} {one two three four five UTF-16BE}
db close
forcedelete test.db
sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
execsql {pragma encoding = 'UTF-16LE'}
do_test enc2-5.4 {
execsql {
CREATE TABLE t5(a);
INSERT INTO t5 VALUES('one');
INSERT INTO t5 VALUES('two');
INSERT INTO t5 VALUES('five');
INSERT INTO t5 VALUES('three');
INSERT INTO t5 VALUES('four');
}
} {}
do_test enc2-5.5 {
add_test_collate $DB 1 1 1
set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
lappend res $::test_collate_enc
} {one two three four five UTF-16LE}
do_test enc2-5.6 {
add_test_collate $DB 1 0 1
set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
lappend res $::test_collate_enc
} {one two three four five UTF-16BE}
do_test enc2-5.7 {
add_test_collate $DB 1 0 0
set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
lappend res $::test_collate_enc
} {one two three four five UTF-8}
db close
forcedelete test.db
sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
execsql {pragma encoding = 'UTF-16BE'}
do_test enc2-5.8 {
execsql {
CREATE TABLE t5(a);
INSERT INTO t5 VALUES('one');
INSERT INTO t5 VALUES('two');
INSERT INTO t5 VALUES('five');
INSERT INTO t5 VALUES('three');
INSERT INTO t5 VALUES('four');
}
} {}
do_test enc2-5.9 {
add_test_collate $DB 1 1 1
set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
lappend res $::test_collate_enc
} {one two three four five UTF-16BE}
do_test enc2-5.10 {
add_test_collate $DB 1 1 0
set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
lappend res $::test_collate_enc
} {one two three four five UTF-16LE}
do_test enc2-5.11 {
add_test_collate $DB 1 0 0
set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
lappend res $::test_collate_enc
} {one two three four five UTF-8}
# Also test that a UTF-16 collation factory works.
do_test enc2-5-12 {
add_test_collate $DB 0 0 0
catchsql {
SELECT * FROM t5 ORDER BY 1 COLLATE test_collate
}
} {1 {no such collation sequence: test_collate}}
do_test enc2-5.13 {
add_test_collate_needed $DB
set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate; }]
lappend res $::test_collate_enc
} {one two three four five UTF-16BE}
do_test enc2-5.14 {
set ::sqlite_last_needed_collation
} test_collate
db close
forcedelete test.db
do_test enc2-5.15 {
sqlite3 db test.db; set ::DB [sqlite3_connection_pointer db]
add_test_collate_needed $::DB
set ::sqlite_last_needed_collation
} {}
do_test enc2-5.16 {
execsql {CREATE TABLE t1(a varchar collate test_collate);}
} {}
do_test enc2-5.17 {
set ::sqlite_last_needed_collation
} {test_collate}
# The following tests - enc2-6.* - test that SQLite selects the correct
# user function when more than one is available.
proc test_function {enc arg} {
return "$enc $arg"
}
db close
forcedelete test.db
sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
execsql {pragma encoding = 'UTF-8'}
do_test enc2-6.0 {
execsql {
CREATE TABLE t5(a);
INSERT INTO t5 VALUES('one');
}
} {}
do_test enc2-6.1 {
add_test_function $DB 1 1 1
execsql {
SELECT test_function('sqlite')
}
} {{UTF-8 sqlite}}
db close
sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
do_test enc2-6.2 {
add_test_function $DB 0 1 0
execsql {
SELECT test_function('sqlite')
}
} {{UTF-16LE sqlite}}
db close
sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
do_test enc2-6.3 {
add_test_function $DB 0 0 1
execsql {
SELECT test_function('sqlite')
}
} {{UTF-16BE sqlite}}
db close
forcedelete test.db
sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
execsql {pragma encoding = 'UTF-16LE'}
do_test enc2-6.3 {
execsql {
CREATE TABLE t5(a);
INSERT INTO t5 VALUES('sqlite');
}
} {}
do_test enc2-6.4 {
add_test_function $DB 1 1 1
execsql {
SELECT test_function('sqlite')
}
} {{UTF-16LE sqlite}}
db close
sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
do_test enc2-6.5 {
add_test_function $DB 0 1 0
execsql {
SELECT test_function('sqlite')
}
} {{UTF-16LE sqlite}}
db close
sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
do_test enc2-6.6 {
add_test_function $DB 0 0 1
execsql {
SELECT test_function('sqlite')
}
} {{UTF-16BE sqlite}}
db close
forcedelete test.db
sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
execsql {pragma encoding = 'UTF-16BE'}
do_test enc2-6.7 {
execsql {
CREATE TABLE t5(a);
INSERT INTO t5 VALUES('sqlite');
}
} {}
do_test enc2-6.8 {
add_test_function $DB 1 1 1
execsql {
SELECT test_function('sqlite')
}
} {{UTF-16BE sqlite}}
db close
sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
do_test enc2-6.9 {
add_test_function $DB 0 1 0
execsql {
SELECT test_function('sqlite')
}
} {{UTF-16LE sqlite}}
db close
sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
do_test enc2-6.10 {
add_test_function $DB 0 0 1
execsql {
SELECT test_function('sqlite')
}
} {{UTF-16BE sqlite}}
db close
forcedelete test.db
# The following tests - enc2-7.* - function as follows:
#
# 1: Open an empty database file assuming UTF-16 encoding.
# 2: Open the same database with a different handle assuming UTF-8. Create
# a table using this handle.
# 3: Read the sqlite_master table from the first handle.
# 4: Ensure the first handle recognises the database encoding is UTF-8.
#
do_test enc2-7.1 {
sqlite3 db test.db
execsql {
PRAGMA encoding = 'UTF-16';
SELECT * FROM sqlite_master;
}
} {}
do_test enc2-7.2 {
set enc [execsql {
PRAGMA encoding;
}]
string range $enc 0 end-2 ;# Chop off the "le" or "be"
} {UTF-16}
do_test enc2-7.3 {
sqlite3 db2 test.db
execsql {
PRAGMA encoding = 'UTF-8';
CREATE TABLE abc(a, b, c);
} db2
} {}
do_test enc2-7.4 {
execsql {
SELECT * FROM sqlite_master;
}
} "table abc abc [expr $AUTOVACUUM?3:2] {CREATE TABLE abc(a, b, c)}"
do_test enc2-7.5 {
execsql {
PRAGMA encoding;
}
} {UTF-8}
db close
db2 close
proc utf16 {utf8} {
set utf16 [encoding convertto unicode $utf8]
append utf16 "\x00\x00"
return $utf16
}
ifcapable {complete} {
do_test enc2-8.1 {
sqlite3_complete16 [utf16 "SELECT * FROM t1;"]
} {1}
do_test enc2-8.2 {
sqlite3_complete16 [utf16 "SELECT * FROM"]
} {0}
}
# Test that the encoding of an empty database may still be set after the
# (empty) schema has been initialized.
forcedelete test.db
do_test enc2-9.1 {
sqlite3 db test.db
execsql {
PRAGMA encoding = 'UTF-8';
PRAGMA encoding;
}
} {UTF-8}
do_test enc2-9.2 {
sqlite3 db test.db
execsql {
PRAGMA encoding = 'UTF-16le';
PRAGMA encoding;
}
} {UTF-16le}
do_test enc2-9.3 {
sqlite3 db test.db
execsql {
SELECT * FROM sqlite_master;
PRAGMA encoding = 'UTF-8';
PRAGMA encoding;
}
} {UTF-8}
do_test enc2-9.4 {
sqlite3 db test.db
execsql {
PRAGMA encoding = 'UTF-16le';
CREATE TABLE abc(a, b, c);
PRAGMA encoding;
}
} {UTF-16le}
do_test enc2-9.5 {
sqlite3 db test.db
execsql {
PRAGMA encoding = 'UTF-8';
PRAGMA encoding;
}
} {UTF-16le}
# Ticket #1987.
# Disallow encoding changes once the encoding has been set.
#
do_test enc2-10.1 {
db close
forcedelete test.db test.db-journal
sqlite3 db test.db
db eval {
PRAGMA encoding=UTF16;
CREATE TABLE t1(a);
PRAGMA encoding=UTF8;
CREATE TABLE t2(b);
}
db close
sqlite3 db test.db
db eval {
SELECT name FROM sqlite_master
}
} {t1 t2}
# 2020-01-15 ticket a08879a4a476eea9
# Do not allow a database connection encoding change unless *all*
# attached databases are empty.
#
reset_db
do_execsql_test enc2-11.10 {
PRAGMA encoding=UTF8;
CREATE TEMP TABLE t1(x);
INSERT INTO t1 VALUES('this is a test');
PRAGMA encoding=UTF16;
SELECT * FROM t1;
} {{this is a test}}
finish_test