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libsql/libsql-sqlite3/ext/session/sessionB.test
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# 2014 August 16
#
# 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 sessions SQLite extension.
# Specifically, this file contains tests for "patchset" changes.
#
if {![info exists testdir]} {
set testdir [file join [file dirname [info script]] .. .. test]
}
source [file join [file dirname [info script]] session_common.tcl]
source $testdir/tester.tcl
ifcapable !session {finish_test; return}
set testprefix sessionB
#
# 1.*: Test that the blobs returned by the session_patchset() API are
# as expected. Also the sqlite3_changeset_iter functions.
#
# 2.*: Test that patchset blobs are handled by sqlite3changeset_apply().
#
# 3.*: Test that sqlite3changeset_invert() works with patchset blobs.
# Correct behaviour is to return SQLITE_CORRUPT.
proc do_sql2patchset_test {tn sql res} {
sqlite3session S db main
S attach *
execsql $sql
uplevel [list do_patchset_test $tn S $res]
S delete
}
#-------------------------------------------------------------------------
# Run simple tests of the _patchset() API.
#
do_execsql_test 1.0 {
CREATE TABLE t1(a, b, c, d, PRIMARY KEY(d, a));
INSERT INTO t1 VALUES(1, 2, 3, 4);
INSERT INTO t1 VALUES(5, 6, 7, 8);
INSERT INTO t1 VALUES(9, 10, 11, 12);
}
do_test 1.1 {
sqlite3session S db main
S attach t1
execsql {
INSERT INTO t1 VALUES('w', 'x', 'y', 'z');
DELETE FROM t1 WHERE d=4;
UPDATE t1 SET c = 14 WHERE a=5;
}
} {}
do_patchset_test 1.2 S {
{UPDATE t1 0 X..X {i 5 {} {} {} {} i 8} {{} {} {} {} i 14 {} {}}}
{INSERT t1 0 X..X {} {t w t x t y t z}}
{DELETE t1 0 X..X {i 1 {} {} {} {} i 4} {}}
}
do_test 1.3 {
S delete
} {}
do_sql2patchset_test 1.4 {
DELETE FROM t1;
} {
{DELETE t1 0 X..X {i 5 {} {} {} {} i 8} {}}
{DELETE t1 0 X..X {t w {} {} {} {} t z} {}}
{DELETE t1 0 X..X {i 9 {} {} {} {} i 12} {}}
}
do_sql2patchset_test 1.5 {
INSERT INTO t1 VALUES(X'61626364', NULL, NULL, 4.2);
INSERT INTO t1 VALUES(4.2, NULL, NULL, X'61626364');
} {
{INSERT t1 0 X..X {} {f 4.2 n {} n {} b abcd}}
{INSERT t1 0 X..X {} {b abcd n {} n {} f 4.2}}
}
do_sql2patchset_test 1.6 {
UPDATE t1 SET b=45 WHERE typeof(a)=='blob';
UPDATE t1 SET c='zzzz' WHERE typeof(a)!='blob';
} {
{UPDATE t1 0 X..X {f 4.2 {} {} {} {} b abcd} {{} {} {} {} t zzzz {} {}}}
{UPDATE t1 0 X..X {b abcd {} {} {} {} f 4.2} {{} {} i 45 {} {} {} {}}}
}
do_sql2patchset_test 1.7 {
UPDATE t1 SET b='xyz' WHERE typeof(a)=='blob';
UPDATE t1 SET c='xyz' WHERE typeof(a)!='blob';
UPDATE t1 SET b=45 WHERE typeof(a)=='blob';
UPDATE t1 SET c='zzzz' WHERE typeof(a)!='blob';
} {
}
do_sql2patchset_test 1.8 {
DELETE FROM t1;
} {
{DELETE t1 0 X..X {f 4.2 {} {} {} {} b abcd} {}}
{DELETE t1 0 X..X {b abcd {} {} {} {} f 4.2} {}}
}
#-------------------------------------------------------------------------
# Run simple tests of _apply() with patchset objects.
#
reset_db
proc noop {args} { error $args }
proc exec_rollback_replay {sql} {
sqlite3session S db main
S attach *
execsql BEGIN
execsql $sql
set patchset [S patchset]
S delete
execsql ROLLBACK
sqlite3changeset_apply db $patchset noop
}
do_execsql_test 2.0 {
CREATE TABLE t2(a, b, c, d, PRIMARY KEY(b,c));
CREATE TABLE t3(w, x, y, z, PRIMARY KEY(w));
}
do_test 2.1 {
exec_rollback_replay {
INSERT INTO t2 VALUES(1, 2, 3, 4);
INSERT INTO t2 VALUES('w', 'x', 'y', 'z');
}
execsql { SELECT * FROM t2 }
} {1 2 3 4 w x y z}
do_test 2.2 {
exec_rollback_replay {
DELETE FROM t2 WHERE a=1;
UPDATE t2 SET d = 'a';
}
execsql { SELECT * FROM t2 }
} {w x y a}
#-------------------------------------------------------------------------
# sqlite3changeset_invert()
#
reset_db
do_execsql_test 3.1 { CREATE TABLE t1(x PRIMARY KEY, y) }
do_test 3.2 {
sqlite3session S db main
S attach *
execsql { INSERT INTO t1 VALUES(1, 2) }
set patchset [S patchset]
S delete
list [catch { sqlite3changeset_invert $patchset } msg] [set msg]
} {1 SQLITE_CORRUPT}
#-------------------------------------------------------------------------
# sqlite3changeset_concat()
#
reset_db
proc do_patchconcat_test {tn args} {
set bRevert 0
if {[lindex $args 0] == "-revert"} {
set bRevert 1
set args [lrange $args 1 end]
}
set nSql [expr [llength $args]-1]
set res [lindex $args $nSql]
set patchlist [list]
execsql BEGIN
if {$bRevert} { execsql { SAVEPOINT x } }
foreach sql [lrange $args 0 end-1] {
sqlite3session S db main
S attach *
execsql $sql
lappend patchlist [S patchset]
S delete
if {$bRevert} { execsql { ROLLBACK TO x } }
}
execsql ROLLBACK
set patch [lindex $patchlist 0]
foreach p [lrange $patchlist 1 end] {
set patch [sqlite3changeset_concat $patch $p]
}
set x [list]
sqlite3session_foreach c $patch { lappend x $c }
uplevel [list do_test $tn [list set {} $x] [list {*}$res]]
}
do_execsql_test 4.1.1 {
CREATE TABLE t1(x PRIMARY KEY, y, z);
}
do_patchconcat_test 4.1.2 {
INSERT INTO t1 VALUES(1, 2, 3);
} {
INSERT INTO t1 VALUES(4, 5, 6);
} {
{INSERT t1 0 X.. {} {i 1 i 2 i 3}}
{INSERT t1 0 X.. {} {i 4 i 5 i 6}}
}
do_execsql_test 4.2.1 {
INSERT INTO t1 VALUES(1, 2, 3);
INSERT INTO t1 VALUES(4, 5, 6);
}
do_patchconcat_test 4.2.2 {
UPDATE t1 SET z = 'abc' WHERE x=1
} {
UPDATE t1 SET z = 'def' WHERE x=4
} {
{UPDATE t1 0 X.. {i 1 {} {} {} {}} {{} {} {} {} t abc}}
{UPDATE t1 0 X.. {i 4 {} {} {} {}} {{} {} {} {} t def}}
}
do_patchconcat_test 4.2.3 {
DELETE FROM t1 WHERE x=1;
} {
DELETE FROM t1 WHERE x=4;
} {
{DELETE t1 0 X.. {i 1 {} {} {} {}} {}}
{DELETE t1 0 X.. {i 4 {} {} {} {}} {}}
}
do_execsql_test 4.3.1 {
CREATE TABLE t2(a, b, c, d, PRIMARY KEY(c, b));
INSERT INTO t2 VALUES('.', 1, 1, '.');
INSERT INTO t2 VALUES('.', 1, 2, '.');
INSERT INTO t2 VALUES('.', 2, 1, '.');
INSERT INTO t2 VALUES('.', 2, 2, '.');
}
# INSERT + INSERT
do_patchconcat_test 4.3.2 -revert {
INSERT INTO t2 VALUES('a', 'a', 'a', 'a');
} {
INSERT INTO t2 VALUES('b', 'a', 'a', 'b');
} {
{INSERT t2 0 .XX. {} {t a t a t a t a}}
}
# INSERT + DELETE
do_patchconcat_test 4.3.3 {
INSERT INTO t2 VALUES('a', 'a', 'a', 'a');
} {
DELETE FROM t2 WHERE c = 'a';
} {}
# INSERT + UPDATE
do_patchconcat_test 4.3.4 {
INSERT INTO t2 VALUES('a', 'a', 'a', 'a');
} {
UPDATE t2 SET d = 'b' WHERE c='a';
} {
{INSERT t2 0 .XX. {} {t a t a t a t b}}
}
# UPDATE + UPDATE
do_patchconcat_test 4.3.5 {
UPDATE t2 SET a = 'a' WHERE c=1 AND b=2;
} {
UPDATE t2 SET d = 'd' WHERE c=1 AND b=2;
} {
{UPDATE t2 0 .XX. {{} {} i 2 i 1 {} {}} {t a {} {} {} {} t d}}
}
# UPDATE + DELETE
do_patchconcat_test 4.3.6 {
UPDATE t2 SET a = 'a' WHERE c=1 AND b=2;
} {
DELETE FROM t2 WHERE c=1 AND b=2;
} {
{DELETE t2 0 .XX. {{} {} i 2 i 1 {} {}} {}}
}
# DELETE + INSERT
do_patchconcat_test 4.3.7 {
DELETE FROM t2 WHERE b=1;
} {
INSERT INTO t2 VALUES('x', 1, 2, '.');
} {
{DELETE t2 0 .XX. {{} {} i 1 i 1 {} {}} {}}
{UPDATE t2 0 .XX. {{} {} i 1 i 2 {} {}} {t x {} {} {} {} t .}}
}
# DELETE + UPDATE
do_patchconcat_test 4.3.8 -revert {
DELETE FROM t2 WHERE b=1 AND c=2;
} {
UPDATE t2 SET a=5 WHERE b=1 AND c=2;
} {
{DELETE t2 0 .XX. {{} {} i 1 i 2 {} {}} {}}
}
# DELETE + UPDATE
do_patchconcat_test 4.3.9 -revert {
DELETE FROM t2 WHERE b=1 AND c=2;
} {
DELETE FROM t2 WHERE b=1;
} {
{DELETE t2 0 .XX. {{} {} i 1 i 1 {} {}} {}}
{DELETE t2 0 .XX. {{} {} i 1 i 2 {} {}} {}}
}
#-------------------------------------------------------------------------
# More rigorous testing of the _patchset(), _apply and _concat() APIs.
#
# The inputs to each test are a populate database and a list of DML
# statements. This test determines that the final database is the same
# if:
#
# 1) the statements are executed directly on the database.
#
# 2) a single patchset is collected while executing the statements and
# then applied to a copy of the original database file.
#
# 3) individual patchsets are collected for statement while executing
# them and concatenated together before being applied to a copy of
# the original database. The concatenation is done in a couple of
# different ways - linear, pairwise etc.
#
# All tests, as it happens, are run with both changesets and patchsets.
# But the focus is on patchset capabilities.
#
# Return a checksum of the contents of the database file. Implicit IPK
# columns are not included in the checksum - just modifying rowids does
# not change the database checksum.
#
proc databasecksum {db} {
set alltab [$db eval {SELECT name FROM sqlite_master WHERE type='table'}]
foreach tab $alltab {
$db eval "SELECT * FROM $tab LIMIT 1" res { }
set slist [list]
foreach col [lsort $res(*)] {
lappend slist "quote($col)"
}
set sql "SELECT [join $slist ,] FROM $tab"
append txt "[lsort [$db eval $sql]]\n"
}
return [md5 $txt]
}
proc do_patchset_test {tn tstcmd lSql} {
if {$tstcmd != "patchset" && $tstcmd != "changeset"} {
error "have $tstcmd: must be patchset or changeset"
}
foreach fname {test.db2 test.db3 test.db4 test.db5} {
forcedelete $fname
forcecopy test.db $fname
}
# Execute the SQL statements on [db]. Collect a patchset for each
# individual statement, as well as a single patchset for the entire
# operation.
sqlite3session S db main
S attach *
foreach sql $lSql {
sqlite3session T db main
T attach *
db eval $sql
lappend lPatch [T $tstcmd]
T delete
}
set patchset [S $tstcmd]
S delete
# Calculate a checksum for the final database.
set cksum [databasecksum db]
# 1. Apply the single large patchset to test.db2
sqlite3 db2 test.db2
sqlite3changeset_apply db2 $patchset noop
uplevel [list do_test $tn.1 { databasecksum db2 } $cksum ]
db2 close
# 2. Apply each of the single-statement patchsets to test.db3
sqlite3 db2 test.db3
foreach p $lPatch {
sqlite3changeset_apply db2 $p noop
}
uplevel [list do_test $tn.2 { databasecksum db2 } $cksum ]
db2 close
# 3. Concatenate all single-statement patchsets into a single large
# patchset, then apply it to test.db4.
#
sqlite3 db2 test.db4
set big ""
foreach p $lPatch {
set big [sqlite3changeset_concat $big $p]
}
sqlite3changeset_apply db2 $big noop
uplevel [list do_test $tn.3 { databasecksum db2 } $cksum ]
db2 close
# 4. Concatenate all single-statement patchsets pairwise into a single
# large patchset, then apply it to test.db5. Pairwise concatenation:
#
# a b c d e f g h i j k
# -> {a b} {c d} {e f} {g h} {i j} k
# -> {a b c d} {e f g h} {i j k}
# -> {a b c d e f g h} {i j k}
# -> {a b c d e f g h i j k}
# -> APPLY!
#
sqlite3 db2 test.db5
set L $lPatch
while {[llength $L] > 1} {
set O [list]
for {set i 0} {$i < [llength $L]} {incr i 2} {
if {$i==[llength $L]-1} {
lappend O [lindex $L $i]
} else {
set i1 [expr $i+1]
lappend O [sqlite3changeset_concat [lindex $L $i] [lindex $L $i1]]
}
}
set L $O
}
sqlite3changeset_apply db2 [lindex $L 0] noop
uplevel [list do_test $tn.4 { databasecksum db2 } $cksum ]
db2 close
}
proc do_patchset_changeset_test {tn initsql args} {
foreach tstcmd {patchset changeset} {
reset_db
execsql $initsql
set x 0
foreach sql $args {
incr x
set lSql [split $sql ";"]
uplevel [list do_patchset_test $tn.$tstcmd.$x $tstcmd $lSql]
}
}
}
do_patchset_changeset_test 5.1 {
CREATE TABLE t1(a PRIMARY KEY, b, c);
INSERT INTO t1 VALUES(1, 2, 3);
} {
INSERT INTO t1 VALUES(4, 5, 6);
DELETE FROM t1 WHERE a=1;
} {
INSERT INTO t1 VALUES(7, 8, 9);
UPDATE t1 SET c = 5;
INSERT INTO t1 VALUES(10, 11, 12);
UPDATE t1 SET c = 6;
INSERT INTO t1 VALUES(13, 14, 15);
} {
UPDATE t1 SET c=c+1;
DELETE FROM t1 WHERE (a%2);
}
do_patchset_changeset_test 5.2 {
CREATE TABLE t1(a PRIMARY KEY, b, c);
CREATE TABLE t2(a, b, c, d, PRIMARY KEY(c, b));
} {
INSERT INTO t1 VALUES(x'00', 0, 'zero');
INSERT INTO t1 VALUES(x'01', 1, 'one');
INSERT INTO t1 VALUES(x'02', 4, 'four');
INSERT INTO t1 VALUES(x'03', 9, 'nine');
INSERT INTO t1 VALUES(x'04', 16, 'sixteen');
INSERT INTO t1 VALUES(x'05', 25, 'twenty-five');
} {
UPDATE t1 SET a = b WHERE b<=4;
INSERT INTO t2 SELECT NULL, * FROM t1;
DELETE FROM t1 WHERE b=25;
} {
DELETE FROM t2;
INSERT INTO t2 SELECT NULL, * FROM t1;
DELETE FROM t1;
INSERT INTO t1 SELECT b, c, d FROM t2;
UPDATE t1 SET b = b+1;
UPDATE t1 SET b = b+1;
UPDATE t1 SET b = b+1;
}
set initsql { CREATE TABLE t1(a, b, c, PRIMARY KEY(c, b)); }
for {set i 0} {$i < 1000} {incr i} {
append insert "INSERT INTO t1 VALUES($i, $i, $i);"
append delete "DELETE FROM t1 WHERE b=$i;"
}
do_patchset_changeset_test 5.3 \
$initsql $insert $delete \
$insert $delete \
"$insert $delete" \
$delete
finish_test
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