diff options
Diffstat (limited to 'ext')
| -rw-r--r-- | ext/session/sessionB.test | 176 |
1 files changed, 175 insertions, 1 deletions
diff --git a/ext/session/sessionB.test b/ext/session/sessionB.test index 8791272f8..d61cada98 100644 --- a/ext/session/sessionB.test +++ b/ext/session/sessionB.test @@ -327,6 +327,180 @@ do_patchconcat_test 4.3.9 -revert { {DELETE t2 0 .XX. {{} {} i 1 i 2 {} {}} {}} } -finish_test +#------------------------------------------------------------------------- +# 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 patchset] + T delete + } + set patchset [S patchset] + 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 + foreach sql $args { + set lSql [split $sql ";"] + uplevel [list do_patchset_test $tn.$tstcmd $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; +} + + +finish_test |