gecko-dev/db/test/bug004.tcl
1998-10-15 03:56:37 +00:00

192 lines
5.9 KiB
Tcl

# See the file LICENSE for redistribution information.
#
# Copyright (c) 1996, 1997, 1998
# Sleepycat Software. All rights reserved.
#
# @(#)bug004.tcl 10.4 (Sleepycat) 4/10/98
#
# Bug Test004:
# Check if we handle the case where we delete a key with the cursor on it
# and then add the same key. The cursor should not get the new item
# returned, but the item shouldn't disappear.
# Run test tests, one where the overwriting put is done with a put and
# one where it's done with a cursor put.
proc bug004 { method args } {
set method [convert_method $method]
if { $method == "DB_RECNO" } {
puts "Bug004 skipping for method RECNO"
return
}
puts "Bug004: $method delete and replace in presence of cursor."
# Get global declarations since tcl doesn't support
# any useful equivalent to #defines!
source ./include.tcl
# Create the database and open the dictionary
set testfile bug004.db
cleanup $testdir
set flags 0
set txn 0
set db [eval [concat dbopen \
$testfile [expr $DB_CREATE | $DB_TRUNCATE] 0644 $method \
-flags $DB_DUP $args]]
error_check_good db_open:dup [is_substr $db db] 1
set curs [$db cursor $txn]
error_check_good curs_open:dup [is_substr $curs $db] 1
puts "\tBug004.a: Set cursor, delete cursor, put with key."
# Put three keys in the database
for { set key 1 } { $key <= 3 } {incr key} {
set r [$db put $txn $key datum$key $flags]
error_check_good put $r 0
}
# Retrieve keys sequentially so we can figure out their order
set i 1
for {set d [$curs get 0 $DB_FIRST] } { [string length $d] != 0 } {
set d [$curs get 0 $DB_NEXT] } {
set key_set($i) [lindex $d 0]
incr i
}
# Now put in a bunch of duplicates for key 2
for { set d 1 } { $d <= 5 } {incr d} {
set r [$db put $txn $key_set(2) dup_$d $flags]
error_check_good dup:put $r 0
}
# Now put the cursor on key 1
# Now set the cursor on the first of the duplicate set.
set r [$curs get $key_set(1) $DB_SET]
error_check_bad cursor_get:DB_SET [llength $r] 0
set k [lindex $r 0]
set d [lindex $r 1]
error_check_good curs_get:DB_SET:key $k $key_set(1)
error_check_good curs_get:DB_SET:data $d datum$key_set(1)
# Now do the delete
set r [$curs del 0]
error_check_good delete $r 0
# Now check the get current on the cursor.
set r [$curs get 0 $DB_CURRENT]
error_check_good curs_after_del [llength $r] 0
# Now do a put on the key
set r [$db put $txn $key_set(1) new_datum$key_set(1) $flags]
error_check_good put $r 0
# Do a get
set r [$db get $txn $key_set(1) 0]
error_check_good get $r new_datum$key_set(1)
# Recheck cursor
set r [$curs get 0 $DB_CURRENT]
error_check_good curs_after_del [llength $r] 0
# Move cursor and see if we get the key.
set r [$curs get 0 $DB_FIRST]
error_check_bad cursor_get:DB_FIRST [llength $r] 0
set k [lindex $r 0]
set d [lindex $r 1]
error_check_good curs_get:DB_FIRST:key $k $key_set(1)
error_check_good curs_get:DB_FIRST:data $d new_datum$key_set(1)
puts "\tBug004.b: Set two cursor on a key, delete one, overwrite other"
set curs2 [$db cursor $txn]
error_check_good curs2_open [is_substr $curs2 $db] 1
# Set both cursors on the 4rd key
set r [$curs get $key_set(3) $DB_SET]
error_check_bad cursor_get:DB_SET [llength $r] 0
set k [lindex $r 0]
set d [lindex $r 1]
error_check_good curs_get:DB_SET:key $k $key_set(3)
error_check_good curs_get:DB_SET:data $d datum$key_set(3)
set r [$curs2 get $key_set(3) $DB_SET]
error_check_bad cursor2_get:DB_SET [llength $r] 0
set k [lindex $r 0]
set d [lindex $r 1]
error_check_good curs2_get:DB_SET:key $k $key_set(3)
error_check_good curs2_get:DB_SET:data $d datum$key_set(3)
# Now delete through cursor 1
error_check_good curs1_del [$curs del 0] 0
# Verify gets on both 1 and 2
set r [$curs get 0 $DB_CURRENT]
error_check_good curs1_get_after_del [llength $r] 0
set r [$curs2 get 0 $DB_CURRENT]
error_check_good curs2_get_after_del [llength $r] 0
# Now do a replace through cursor 2
set r [$curs2 put 0 new_datum$key_set(3) $DB_CURRENT]
error_check_bad curs_replace $r 0
# Gets fail
set r [$curs get 0 $DB_CURRENT]
error_check_good curs1_get_after_replace [llength $r] 0
set r [$curs2 get 0 $DB_CURRENT]
error_check_good curs2_get_after_replace [llength $r] 0
puts "\tBug004.c: Set two cursors on a dup, delete one, overwrite other"
# Set both cursors on the 2nd duplicate of key 2
set r [$curs get $key_set(2) $DB_SET]
error_check_bad cursor_get:DB_SET [llength $r] 0
set k [lindex $r 0]
set d [lindex $r 1]
error_check_good curs_get:DB_SET:key $k $key_set(2)
error_check_good curs_get:DB_SET:data $d datum$key_set(2)
set r [$curs get 0 $DB_NEXT]
error_check_bad cursor_get:DB_NEXT [llength $r] 0
set k [lindex $r 0]
set d [lindex $r 1]
error_check_good curs_get:DB_NEXT:key $k $key_set(2)
error_check_good curs_get:DB_NEXT:data $d dup_1
set r [$curs2 get $key_set(2) $DB_SET]
error_check_bad cursor2_get:DB_SET [llength $r] 0
set k [lindex $r 0]
set d [lindex $r 1]
error_check_good curs2_get:DB_SET:key $k $key_set(2)
error_check_good curs2_get:DB_SET:data $d datum$key_set(2)
set r [$curs2 get 0 $DB_NEXT]
error_check_bad cursor2_get:DB_NEXT [llength $r] 0
set k [lindex $r 0]
set d [lindex $r 1]
error_check_good curs2_get:DB_NEXT:key $k $key_set(2)
error_check_good curs2_get:DB_NEXT:data $d dup_1
# Now delete through cursor 1
error_check_good curs1_del [$curs del 0] 0
# Verify gets on both 1 and 2
set r [$curs get 0 $DB_CURRENT]
error_check_good curs1_get_after_del [llength $r] 0
set r [$curs2 get 0 $DB_CURRENT]
error_check_good curs2_get_after_del [llength $r] 0
# Now do a replace through cursor 2
set r [$curs2 put 0 new_dup_1 $DB_CURRENT]
error_check_bad curs_replace $r 0
# Both gets should fail
set r [$curs get 0 $DB_CURRENT]
error_check_good curs1_get_after_replace [llength $r] 0
set r [$curs2 get 0 $DB_CURRENT]
error_check_good curs2_get_after_replace [llength $r] 0
error_check_good curs2_close [$curs2 close] 0
error_check_good curs_close [$curs close] 0
error_check_good db_close [$db close] 0
}