Import BSDDB 4.7.25 (as of svn r89086)

test/test056.tcl

@@ -0,0 +1,168 @@
+# See the file LICENSE for redistribution information.
+#
+# Copyright (c) 1996,2008 Oracle.  All rights reserved.
+#
+# $Id: test056.tcl,v 12.6 2008/01/08 20:58:53 bostic Exp $
+#
+# TEST	test056
+# TEST	Cursor maintenance during deletes.
+# TEST	Check if deleting a key when a cursor is on a duplicate of that
+# TEST	key works.
+proc test056 { method args } {
+	global errorInfo
+	source ./include.tcl
+
+	set args [convert_args $method $args]
+	set omethod [convert_method $method]
+
+	append args " -create -mode 0644 -dup "
+	if { [is_record_based $method] == 1 || [is_rbtree $method] } {
+		puts "Test056: skipping for method $method"
+		return
+	}
+	puts "Test056: $method delete of key in presence of cursor"
+
+	# Create the database and open the dictionary
+	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/test056.db
+		set env NULL
+	} else {
+		set testfile test056.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]
+	}
+	cleanup $testdir $env
+
+	set flags ""
+	set txn  ""
+
+	set db [eval {berkdb_open} $args {$omethod $testfile}]
+	error_check_good db_open:dup [is_valid_db $db] TRUE
+
+	puts "\tTest056.a: Key delete with cursor on duplicate."
+	# Put three keys in the database
+	for { set key 1 } { $key <= 3 } {incr key} {
+		if { $txnenv == 1 } {
+			set t [$env txn]
+			error_check_good txn [is_valid_txn $t $env] TRUE
+			set txn "-txn $t"
+		}
+		set r [eval {$db put} $txn $flags {$key datum$key}]
+		error_check_good put $r 0
+		if { $txnenv == 1 } {
+			error_check_good txn [$t commit] 0
+		}
+	}
+
+	# Retrieve keys sequentially so we can figure out their order
+	set i 1
+	if { $txnenv == 1 } {
+		set t [$env txn]
+		error_check_good txn [is_valid_txn $t $env] TRUE
+		set txn "-txn $t"
+	}
+	set curs [eval {$db cursor} $txn]
+	error_check_good curs_open:dup [is_valid_cursor $curs $db] TRUE
+
+	for {set d [$curs get -first] } { [llength $d] != 0 } {
+	    set d [$curs get -next] } {
+		set key_set($i) [lindex [lindex $d 0] 0]
+		incr i
+	}
+
+	# Now put in a bunch of duplicates for key 2
+	for { set d 1 } { $d <= 5 } {incr d} {
+		set r [eval {$db put} $txn $flags {$key_set(2) dup_$d}]
+		error_check_good dup:put $r 0
+	}
+
+	# Now put the cursor on a duplicate of key 2
+
+	# Now set the cursor on the first of the duplicate set.
+	set r [$curs get -set $key_set(2)]
+	error_check_bad cursor_get:DB_SET [llength $r] 0
+	set k [lindex [lindex $r 0] 0]
+	set d [lindex [lindex $r 0] 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)
+
+	# Now do two nexts
+	set r [$curs get -next]
+	error_check_bad cursor_get:DB_NEXT [llength $r] 0
+	set k [lindex [lindex $r 0] 0]
+	set d [lindex [lindex $r 0] 1]
+	error_check_good curs_get:DB_NEXT:key $k $key_set(2)
+	error_check_good curs_get:DB_NEXT:data $d dup_1
+
+	set r [$curs get -next]
+	error_check_bad cursor_get:DB_NEXT [llength $r] 0
+	set k [lindex [lindex $r 0] 0]
+	set d [lindex [lindex $r 0] 1]
+	error_check_good curs_get:DB_NEXT:key $k $key_set(2)
+	error_check_good curs_get:DB_NEXT:data $d dup_2
+
+	# Now do the delete
+	set r [eval {$db del} $txn $flags {$key_set(2)}]
+	error_check_good delete $r 0
+
+	# Now check the get current on the cursor.
+	set ret [$curs get -current]
+	error_check_good curs_after_del $ret ""
+
+	# Now check that the rest of the database looks intact.  There
+	# should be only two keys, 1 and 3.
+
+	set r [$curs get -first]
+	error_check_bad cursor_get:DB_FIRST [llength $r] 0
+	set k [lindex [lindex $r 0] 0]
+	set d [lindex [lindex $r 0] 1]
+	error_check_good curs_get:DB_FIRST:key $k $key_set(1)
+	error_check_good curs_get:DB_FIRST:data $d datum$key_set(1)
+
+	set r [$curs get -next]
+	error_check_bad cursor_get:DB_NEXT [llength $r] 0
+	set k [lindex [lindex $r 0] 0]
+	set d [lindex [lindex $r 0] 1]
+	error_check_good curs_get:DB_NEXT:key $k $key_set(3)
+	error_check_good curs_get:DB_NEXT:data $d datum$key_set(3)
+
+	set r [$curs get -next]
+	error_check_good cursor_get:DB_NEXT [llength $r] 0
+
+	puts "\tTest056.b:\
+	    Cursor delete of first item, followed by cursor FIRST"
+	# Set to beginning
+	set r [$curs get -first]
+	error_check_bad cursor_get:DB_FIRST [llength $r] 0
+	set k [lindex [lindex $r 0] 0]
+	set d [lindex [lindex $r 0] 1]
+	error_check_good curs_get:DB_FIRST:key $k $key_set(1)
+	error_check_good curs_get:DB_FIRST:data $d datum$key_set(1)
+
+	# Now do delete
+	error_check_good curs_del [$curs del] 0
+
+	# Now do DB_FIRST
+	set r [$curs get -first]
+	error_check_bad cursor_get:DB_FIRST [llength $r] 0
+	set k [lindex [lindex $r 0] 0]
+	set d [lindex [lindex $r 0] 1]
+	error_check_good curs_get:DB_FIRST:key $k $key_set(3)
+	error_check_good curs_get:DB_FIRST:data $d datum$key_set(3)
+
+	error_check_good curs_close [$curs close] 0
+	if { $txnenv == 1 } {
+		error_check_good txn [$t commit] 0
+	}
+	error_check_good db_close [$db close] 0
+}