sqlite/test/dbdata.test

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# 2019-04-11
#
# 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_dbpage virtual table.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix dbdata
ifcapable !vtab||!compound {
finish_test
return
}
if { [catch { db enable_load_extension 1 }]
|| [catch { db eval { SELECT load_extension('../dbdata') } }]
} {
finish_test
return
}
do_execsql_test 1.0 {
CREATE TABLE T1(a, b);
INSERT INTO t1(rowid, a ,b) VALUES(5, 'v', 'five');
INSERT INTO t1(rowid, a, b) VALUES(10, 'x', 'ten');
}
do_execsql_test 1.1 {
SELECT pgno, cell, field, quote(value) FROM sqlite_dbdata WHERE pgno=2;
} {
2 0 -1 5
2 0 0 'v'
2 0 1 'five'
2 1 -1 10
2 1 0 'x'
2 1 1 'ten'
}
breakpoint
do_execsql_test 1.2 {
SELECT pgno, cell, field, quote(value) FROM sqlite_dbdata;
} {
1 0 -1 1
1 0 0 'table'
1 0 1 'T1'
1 0 2 'T1'
1 0 3 2
1 0 4 {'CREATE TABLE T1(a, b)'}
2 0 -1 5
2 0 0 'v'
2 0 1 'five'
2 1 -1 10
2 1 0 'x'
2 1 1 'ten'
}
set big [string repeat big 2000]
do_execsql_test 1.3 {
INSERT INTO t1 VALUES(NULL, $big);
SELECT value FROM sqlite_dbdata WHERE pgno=2 AND cell=2 AND field=1;
} $big
do_execsql_test 1.4 {
DELETE FROM t1;
INSERT INTO t1 VALUES(NULL, randomblob(5050));
}
do_test 1.5 {
execsql {
SELECT quote(value) FROM sqlite_dbdata WHERE pgno=2 AND cell=0 AND field=1;
}
} [db one {SELECT quote(b) FROM t1}]
#-------------------------------------------------------------------------
reset_db
db enable_load_extension 1
db eval { SELECT load_extension('../dbdata') }
do_execsql_test 2.0 {
CREATE TABLE t1(a);
CREATE INDEX i1 ON t1(a);
WITH s(i) AS (
SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<10
)
INSERT INTO t1 SELECT randomblob(900) FROM s;
}
do_execsql_test 2.1 {
SELECT * FROM sqlite_dbptr WHERE pgno=2;
} {
2 25 2 6 2 7 2 9 2 11 2 13 2 15 2 17 2 19 2 21
}
do_execsql_test 2.2 {
SELECT * FROM sqlite_dbptr WHERE pgno=3;
} {
3 24 3 23
}
do_execsql_test 2.3 {
SELECT * FROM sqlite_dbptr
} {
2 25 2 6 2 7 2 9 2 11 2 13 2 15 2 17 2 19 2 21
3 24 3 23
}
finish_test