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# See the file LICENSE for redistribution information.
#
# Copyright (c) 2009-2009 Oracle. All rights reserved.
#
# $Id$
#
# TEST test125
# TEST Test cursor comparison API.
# TEST
# TEST The cursor comparison API reports whether two cursors within
# TEST the same database are at the same position. It does not report
# TEST any information about relative position.
# TEST
# TEST 1. Test two uninitialized cursors (error).
# TEST 2. Test one uninitialized cursor, one initialized (error).
# TEST 3. Test two cursors in different databases (error).
# TEST 4. Put two cursors in the same place, test for match. Walk
# TEST them back and forth a bit, more matching.
# TEST 5. Two cursors in the same spot. Delete through one.
proc test125 { method args } {
global errorInfo
source ./include.tcl
set tnum 125
set args [convert_args $method $args]
set omethod [convert_method $method]
set txnenv 0
set eindex [lsearch -exact $args "-env"]
# If we are using an env, then testfile should just be the db name.
# Otherwise it is the test directory and the name.
if { $eindex == -1 } {
set testfile $testdir/test$tnum.db
set testfile2 $testdir/test$tnum-2.db
set env NULL
} else {
set testfile test$tnum.db
set testfile2 test$tnum-2.db
incr eindex
set env [lindex $args $eindex]
set txnenv [is_txnenv $env]
if { $txnenv == 1 } {
append args " -auto_commit "
}
set testdir [get_home $env]
}
set t ""
set txn ""
# Run the test with and without duplicates, and with and without
# large data items.
foreach dupflag { "" "-dup" "-dup -dupsort" } {
if { [is_compressed $args] && $dupflag == "-dup" } {
puts "Skipping unsorted dups for btree with compression"
continue
}
foreach bigdata { 0 1 } {
set msg ""
if { $bigdata == 1 } {
set msg "with big data"
}
puts "Test$tnum ($method $dupflag $msg):\
Cursor comparison API."
if { [llength $dupflag] > 0 } {
if { [is_record_based $method] ||\
[is_rbtree $method] } {
puts "Skipping test for method $method\
with duplicates."
continue
}
set dups 1
} else {
set dups 0
}
# Testdir will get reset from the env's home dir back
# to the default if this calls something that sources
# include.tcl, since testdir is a global. Set it correctly
# here each time through the loop.
#
if { $env != "NULL" } {
set testdir [get_home $env]
}
cleanup $testdir $env
puts "\tTest$tnum.a: Test failure cases."
# Open two databases.
set db [eval {berkdb_open_noerr} -create -mode 0644 \
$omethod $args $dupflag {$testfile}]
error_check_good db_open [is_valid_db $db] TRUE
set db2 [eval {berkdb_open_noerr} -create -mode 0644 \
$omethod $args $dupflag {$testfile2}]
error_check_good db2_open [is_valid_db $db2] TRUE
# Populate the databases.
set nentries 1000
if { $txnenv == 1 } {
set t [$env txn]
error_check_good txn [is_valid_txn $t $env] TRUE
set txn "-txn $t"
}
populate $db $method $t $nentries $dups $bigdata
populate $db2 $method $t $nentries $dups $bigdata
# Test error conditions.
puts "\t\tTest$tnum.a1: Uninitialized cursors."
set c1 [eval {$db cursor} $txn]
set c2 [eval {$db cursor} $txn]
set ret [catch {$c1 cmp $c2} res]
error_check_good uninitialized_cursors $ret 1
puts "\t\tTest$tnum.a2:\
One initialized, one uninitialized cursor."
$c1 get -first
set ret [catch {$c1 cmp $c2} res]
error_check_good one_uninitialized_cursor $ret 1
puts "\t\tTest$tnum.a3: Cursors in different databases."
set c3 [eval {$db2 cursor} $txn]
set ret [$c3 get -first]
set ret [catch {$c1 cmp $c3} res]
error_check_good cursors_in_different_databases $ret 1
# Clean up second database - we won't be using it again.
$c3 close
$db2 close
# Test valid conditions.
#
# Initialize second cursor to -first. Cursor cmp should
# match; c1 was already there.
puts "\tTest$tnum.b: Cursors initialized to -first."
set ret [$c2 get -first]
error_check_good c1_and_c2_on_first [$c1 cmp $c2] 0
# Walk to the end. We should alternate between
# matching and not matching.
puts "\tTest$tnum.c: Walk cursors to the last item."
for { set i 1 } { $i < $nentries } { incr i } {
# First move c1; cursors won't match.
set ret [$c1 get -next]
error_check_bad cmp_does_not_match [$c1 cmp $c2] 0
# Now move c2; cursors will match again.
set ret [$c2 get -next]
error_check_good cmp_matches [$c1 cmp $c2] 0
}
# Now do it in reverse, starting at -last and backing up.
puts "\tTest$tnum.d: Cursors initialized to -last."
set ret [$c1 get -last]
set ret [$c2 get -last]
error_check_good c1_and_c2_on_last [$c1 cmp $c2] 0
puts "\tTest$tnum.e: Walk cursors back to the first item."
for { set i 1 } { $i < $nentries } { incr i } {
# First move c1; cursors won't match.
set ret [$c1 get -prev]
error_check_bad cmp_does_not_match [$c1 cmp $c2] 0
# Now move c2; cursors will match again.
set ret [$c2 get -prev]
error_check_good cmp_matches [$c1 cmp $c2] 0
}
# A cursor delete leaves the cursor in the same place, so a
# comparison should still work.
puts "\tTest$tnum.f:\
Position comparison works with cursor deletes."
set ret [$c1 get -first]
set ret [$c2 get -first]
# Do the cursor walk again, deleting as we go.
puts "\tTest$tnum.g: Cursor walk with deletes."
for { set i 1 } { $i < $nentries } { incr i } {
# First move c1; cursors won't match.
set ret [$c1 get -next]
error_check_bad cmp_does_not_match [$c1 cmp $c2] 0
# Now move c2; cursors will match again.
set ret [$c2 get -next]
error_check_good cmp_matches [$c1 cmp $c2] 0
# Now delete through c2; cursors should still match.
set ret [$c2 del]
error_check_good cmp_still_matches [$c1 cmp $c2] 0
}
# Close cursors and database; commit txn.
error_check_good c1_close [$c1 close] 0
error_check_good c2_close [$c2 close] 0
if { $txnenv == 1 } {
error_check_good txn [$t commit] 0
}
error_check_good db_close [$db close] 0
}
}
}
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