149 lines
4.1 KiB
Plaintext
149 lines
4.1 KiB
Plaintext
# 2009 December 03
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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# Brute force (random data) tests for FTS3.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# If this build does not include FTS3, skip the tests in this file.
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#
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ifcapable !fts3 { finish_test ; return }
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source $testdir/fts3_common.tcl
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set nVocab 100
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set lVocab [list]
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# Generate a vocabulary of nVocab words. Each word is 3 characters long.
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#
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set lChar {a b c d e f g h i j k l m n o p q r s t u v w x y z}
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for {set i 0} {$i < $nVocab} {incr i} {
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set word [lindex $lChar [expr int(rand()*26)]]
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append word [lindex $lChar [expr int(rand()*26)]]
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append word [lindex $lChar [expr int(rand()*26)]]
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lappend lVocab $word
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}
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proc random_term {} {
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lindex $::lVocab [expr {int(rand()*$::nVocab)}]
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}
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# Return a document consisting of $nWord arbitrarily selected terms
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# from the $::lVocab list.
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#
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proc generate_doc {nWord} {
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set doc [list]
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for {set i 0} {$i < $nWord} {incr i} {
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lappend doc [random_term]
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}
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return $doc
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}
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# Primitives to update the table.
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#
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unset -nocomplain t1
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proc insert_row {rowid} {
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set a [generate_doc [expr int((rand()*100))]]
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set b [generate_doc [expr int((rand()*100))]]
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set c [generate_doc [expr int((rand()*100))]]
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execsql { INSERT INTO t1(docid, a, b, c) VALUES($rowid, $a, $b, $c) }
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set ::t1($rowid) [list $a $b $c]
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}
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proc delete_row {rowid} {
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execsql { DELETE FROM t1 WHERE rowid = $rowid }
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catch {unset ::t1($rowid)}
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}
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proc update_row {rowid} {
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set cols {a b c}
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set iCol [expr int(rand()*3)]
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set doc [generate_doc [expr int((rand()*100))]]
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lset ::t1($rowid) $iCol $doc
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execsql "UPDATE t1 SET [lindex $cols $iCol] = \$doc WHERE rowid = \$rowid"
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}
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# Primitives to query the in-memory table.
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#
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proc simple_term {zTerm} {
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set ret [list]
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foreach {key value} [array get ::t1] {
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if {[string first $zTerm $value]>=0} { lappend ret $key }
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}
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lsort -integer $ret
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}
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foreach nodesize {50 500 1000 2000} {
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catch { array unset ::t1 }
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# Create the FTS3 table. Populate it (and the Tcl array) with 100 rows.
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#
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db transaction {
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catchsql { DROP TABLE t1 }
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execsql "CREATE VIRTUAL TABLE t1 USING fts3(a, b, c, test:$nodesize)"
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for {set i 0} {$i < 100} {incr i} { insert_row $i }
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}
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for {set iTest 1} {$iTest <= 100} {incr iTest} {
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# Delete one row, update one row and insert one row.
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#
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set rows [array names ::t1]
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set nRow [llength $rows]
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set iUpdate [lindex $rows [expr {int(rand()*$nRow)}]]
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set iDelete $iUpdate
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while {$iDelete == $iUpdate} {
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set iDelete [lindex $rows [expr {int(rand()*$nRow)}]]
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}
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set iInsert $iUpdate
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while {[info exists ::t1($iInsert)]} {
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set iInsert [expr {int(rand()*1000000)}]
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}
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db transaction {
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insert_row $iInsert
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update_row $iUpdate
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delete_row $iDelete
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}
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# Pick 10 terms from the vocabulary. Check that the results of querying
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# the database for the set of documents containing each of these terms
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# is the same as the result obtained by scanning the contents of the Tcl
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# array for each term.
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#
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set n [expr {$iTest % ([llength $::lVocab]-10)}]
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foreach term [lrange $::lVocab $n [expr $n+10]] {
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do_test fts3rnd-1.$nodesize.$iTest.$term {
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execsql { SELECT docid FROM t1 WHERE t1 MATCH $term }
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} [simple_term $term]
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}
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# Similar to the above, except for phrase queries.
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#
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for {set i 0} {$i < 10} {incr i} {
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set term [list [random_term] [random_term]]
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set match "\"$term\""
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do_test fts3rnd-1.$nodesize.$iTest.$match {
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execsql { SELECT docid FROM t1 WHERE t1 MATCH $match }
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} [simple_term $term]
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}
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# Three word phrases.
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#
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for {set i 0} {$i < 10} {incr i} {
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set term [list [random_term] [random_term] [random_term]]
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set match "\"$term\""
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do_test fts3rnd-1.$nodesize.$iTest.$match {
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execsql { SELECT docid FROM t1 WHERE t1 MATCH $match }
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} [simple_term $term]
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}
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}
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}
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finish_test
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