# 2006 June 10
#
# 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 creating and dropping virtual tables.
#
# $Id: vtab1.test,v 1.11 2006/06/13 23:51:35 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
ifcapable !vtab {
finish_test
return
}
# We cannot create a virtual table if the module has not
# been registered.
#
do_test vtab1-1.1 {
catchsql {
CREATE VIRTUAL TABLE t1 USING echo;
}
} {1 {unknown module: echo}}
do_test vtab1-1.2 {
execsql {
SELECT name FROM sqlite_master ORDER BY 1
}
} {}
# After we register the echo module, we are allowed to create
# virtual tables using that module.
#
do_test vtab1-1.3 {
register_echo_module [sqlite3_connection_pointer db]
catchsql {
CREATE VIRTUAL TABLE t1 USING echo;
}
} {0 {}}
do_test vtab1-1.4 {
set echo_module
} {xCreate echo}
do_test vtab1-1.5 {
execsql {
SELECT name, sql FROM sqlite_master ORDER BY 1
}
} {t1 {CREATE VIRTUAL TABLE t1 USING echo}}
# If a single argument is passed to the echo module during table
# creation, it is assumed to be the name of a table in the same
# database. The echo module attempts to set the schema of the
# new virtual table to be the same as the existing database table.
#
do_test vtab1-2.1 {
execsql {
CREATE TABLE template(a, b, c);
}
execsql { PRAGMA table_info(template); }
} [list \
0 a {} 0 {} 0 \
1 b {} 0 {} 0 \
2 c {} 0 {} 0 \
]
do_test vtab1-2.2 {
execsql {
CREATE VIRTUAL TABLE t2 USING echo(template);
}
execsql { PRAGMA table_info(t2); }
} [list \
0 a {} 0 {} 0 \
1 b {} 0 {} 0 \
2 c {} 0 {} 0 \
]
# Test that the database can be unloaded. This should invoke
# the xDisconnect() callback each of the two virtual tables - t1 and t2.
do_test vtab1-2.3 {
breakpoint
set echo_module [list]
db close
set echo_module
} [list xDisconnect xDisconnect]
set echo_module [list]
# Re-open the database. Check that the schema of the virtual
# table is still correct.
do_test vtab1-2.4 {
sqlite3 db test.db
db cache size 0
register_echo_module [sqlite3_connection_pointer db]
execsql { PRAGMA table_info(t2); }
} [list \
0 a {} 0 {} 0 \
1 b {} 0 {} 0 \
2 c {} 0 {} 0 \
]
# Drop the table t2. This should cause the xDestroy (but not xDisconnect)
# method to be invoked.
do_test vtab1-2.5 {
set echo_module [list]
execsql {
DROP TABLE t2;
}
set echo_module
} [list xDestroy]
do_test vtab1-2.6 {
execsql {
PRAGMA table_info(t2);
}
} {}
do_test vtab1-2.7 {
execsql {
SELECT sql FROM sqlite_master;
}
} [list {CREATE VIRTUAL TABLE t1 USING echo} \
{CREATE TABLE template(a, b, c)} \
]
do_test vtab1-2.8 {
set echo_module [list]
execsql {
DROP TABLE t1;
DROP TABLE template;
}
set echo_module
} [list]
do_test vtab1-2.9 {
execsql {
SELECT sql FROM sqlite_master;
}
} [list]
#----------------------------------------------------------------------
# Test case vtab1-3 tests simple linear scans (no filter conditions) of
# virtual table modules.
do_test vtab1-3.1 {
set echo_module ""
execsql {
CREATE TABLE treal(a INTEGER, b INTEGER, c);
CREATE INDEX treal_idx ON treal(b);
CREATE VIRTUAL TABLE t1 USING echo(treal);
}
set echo_module
} [list xCreate echo treal]
do_test vtab1-3.2 {
# Test that a SELECT on t2 doesn't crash. No rows are returned
# because the underlying real table, is currently empty.
execsql {
SELECT a, b, c FROM t1;
}
} {}
do_test vtab1-3.3 {
# Put some data into the table treal. Then try a select on t1.
execsql {
INSERT INTO treal VALUES(1, 2, 3);
INSERT INTO treal VALUES(4, 5, 6);
SELECT * FROM t1;
}
} {1 2 3 4 5 6}
do_test vtab1-3.4 {
execsql {
SELECT a FROM t1;
}
} {1 4}
do_test vtab1-3.5 {
execsql {
SELECT rowid FROM t1;
}
} {1 2}
do_test vtab1-3.6 {
set echo_module ""
execsql {
SELECT * FROM t1;
}
} {1 2 3 4 5 6}
do_test vtab1-3.7 {
set echo_module
} {xBestIndex {SELECT rowid, * FROM 'treal'} xFilter {SELECT rowid, * FROM 'treal'}}
do_test vtab1-3.8 {
set echo_module ""
execsql {
SELECT * FROM t1 WHERE b = 5;
}
} {4 5 6}
do_test vtab1-3.9 {
set echo_module
} {xBestIndex {SELECT rowid, * FROM 'treal' WHERE b = ?} xFilter {SELECT rowid, * FROM 'treal' WHERE b = ?} 5}
do_test vtab1-3.10 {
set echo_module ""
execsql {
SELECT * FROM t1 WHERE b >= 5 AND b <= 10;
}
} {4 5 6}
do_test vtab1-3.11 {
set echo_module
} {xBestIndex {SELECT rowid, * FROM 'treal' WHERE b >= ? AND b <= ?} xFilter {SELECT rowid, * FROM 'treal' WHERE b >= ? AND b <= ?} 5 10}
do_test vtab1-3.12 {
set echo_module ""
execsql {
SELECT * FROM t1 WHERE b BETWEEN 2 AND 10;
}
} {1 2 3 4 5 6}
do_test vtab1-3.13 {
set echo_module
} {xBestIndex {SELECT rowid, * FROM 'treal' WHERE b >= ? AND b <= ?} xFilter {SELECT rowid, * FROM 'treal' WHERE b >= ? AND b <= ?} 2 10}
finish_test