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Fixes to problems in FTS3 snippet() function found by th3 tests.

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FossilOrigin-Name: 3b5ccd2682176929f4da8a3f39a7e8f58b179f18
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dan
2010-01-07 10:54:28 +00:00
parent 8dc3e8f3e6
commit 3174598a64
5 changed files with 115 additions and 89 deletions
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54
test/fts3snippet.test
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@ -1,10 +1,30 @@
# 2010 January 07
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#*************************************************************************
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
# If SQLITE_ENABLE_FTS3 is defined, omit this file.
# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
ifcapable !fts3 { finish_test ; return }
# Transform the list $L to its "normal" form. So that it can be compared to
# another list with the same set of elements using [string compare].
#
proc normalize {L} {
set ret [list]
foreach l $L {lappend ret $l}
return $ret
}
do_test fts3snippet-1.1 {
execsql {
CREATE VIRTUAL TABLE ft USING fts3;
@ -12,12 +32,6 @@ do_test fts3snippet-1.1 {
}
} {}
proc normalize {L} {
set ret [list]
foreach l $L {lappend ret $l}
return $ret
}
do_test fts3snippet-1.2 {
execsql { SELECT offsets(ft) FROM ft WHERE ft MATCH 'xxx' }
} {{0 0 0 3 0 0 4 3 0 0 8 3 0 0 12 3}}
@ -64,5 +78,31 @@ do_test fts3snippet-1.5 {
0 2 12 3
}]]
do_test fts3snippet-2.1 {
execsql {
DROP TABLE IF EXISTS ft;
CREATE VIRTUAL TABLE ft USING fts3;
INSERT INTO ft VALUES('one two three four five six seven eight nine ten');
}
} {}
foreach {tn expr res} {
1 one "[one] two three four five..."
2 two "one [two] three four five..."
3 three "one two [three] four five..."
4 four "...two three [four] five six..."
5 five "...three four [five] six seven..."
6 six "...four five [six] seven eight..."
7 seven "...five six [seven] eight nine..."
8 eight "...six seven [eight] nine ten"
9 nine "...six seven eight [nine] ten"
10 ten "...six seven eight nine [ten]"
} {
do_test fts3snippet-2.2.$tn {
execsql {
SELECT snippet(ft, '[', ']', '...', 0, 5) FROM ft WHERE ft MATCH $expr
}
} [list $res]
}
finish_test