1: # 2011 May 04
2: #
3: # The author disclaims copyright to this source code. In place of
4: # a legal notice, here is a blessing:
5: #
6: # May you do good and not evil.
7: # May you find forgiveness for yourself and forgive others.
8: # May you share freely, never taking more than you give.
9: #
10: #*************************************************************************
11: # This file implements regression tests for SQLite library. The
12: # focus of this script is testing the FTS3 module.
13: #
14:
15: set testdir [file dirname $argv0]
16: source $testdir/tester.tcl
17: set testprefix fts3prefix
18:
19: ifcapable !fts3 {
20: finish_test
21: return
22: }
23:
24: # This proc tests that the prefixes index appears to represent the same content
25: # as the terms index.
26: #
27: proc fts3_terms_and_prefixes {db tbl prefixlengths} {
28:
29: set iIndex 0
30: foreach len $prefixlengths {
31: incr iIndex
32: $db eval {
33: DROP TABLE IF EXISTS fts3check1;
34: DROP TABLE IF EXISTS fts3check2;
35: }
36: $db eval "CREATE VIRTUAL TABLE fts3check1 USING fts4term($tbl, 0);"
37: $db eval "CREATE VIRTUAL TABLE fts3check2 USING fts4term($tbl, $iIndex);"
38:
39: $db eval {
40: DROP TABLE IF EXISTS temp.terms;
41: DROP TABLE IF EXISTS temp.prefixes;
42: CREATE TEMP TABLE terms AS SELECT * FROM fts3check1;
43: CREATE TEMP TABLE prefixes AS SELECT * FROM fts3check2;
44: CREATE INDEX temp.idx ON prefixes(term);
45: DROP TABLE fts3check1;
46: DROP TABLE fts3check2;
47: }
48:
49: set nExpect 0
50: $db eval { SELECT term, docid, col, pos FROM temp.terms } a {
51: if {[string length $a(term)]<$len} continue
52: incr nExpect
53: set prefix [string range $a(term) 0 [expr $len-1]]
54: set r [$db one {
55: SELECT count(*) FROM temp.prefixes WHERE
56: term = $prefix AND docid = $a(docid) AND col = $a(col) AND pos = $a(pos)
57: }]
58: if {$r != 1} {
59: error "$t, $a(docid), $a(col), $a(pos)"
60: }
61: }
62:
63: set nCount [$db one {SELECT count(*) FROM temp.prefixes}]
64: if {$nCount != $nExpect} {
65: error "prefixes.count(*) is $nCount expected $nExpect"
66: }
67:
68: execsql { DROP TABLE temp.prefixes }
69: execsql { DROP TABLE temp.terms }
70:
71: set list [list]
72: $db eval "
73: SELECT sum( 1 << (16*(level%1024)) ) AS total, (level/1024) AS tree
74: FROM ${tbl}_segdir GROUP BY tree
75: " {
76: lappend list [list $total $tree]
77: }
78:
79: if { [lsort -integer -index 0 $list] != [lsort -integer -index 1 $list] } {
80: error "inconsistent tree structures: $list"
81: }
82: }
83:
84: return ""
85: }
86: proc fts3_tap_test {tn db tbl lens} {
87: uplevel [list do_test $tn [list fts3_terms_and_prefixes $db $tbl $lens] ""]
88: }
89:
90: #-------------------------------------------------------------------------
91: # Test cases 1.* are a sanity check. They test that the prefixes index is
92: # being constructed correctly for the simplest possible case.
93: #
94: do_execsql_test 1.1 {
95: CREATE VIRTUAL TABLE t1 USING fts4(prefix='1,3,6');
96:
97: CREATE VIRTUAL TABLE p1 USING fts4term(t1, 1);
98: CREATE VIRTUAL TABLE p2 USING fts4term(t1, 2);
99: CREATE VIRTUAL TABLE p3 USING fts4term(t1, 3);
100: CREATE VIRTUAL TABLE terms USING fts4term(t1);
101: }
102: do_execsql_test 1.2 {
103: INSERT INTO t1 VALUES('sqlite mysql firebird');
104: }
105: do_execsql_test 1.3.1 { SELECT term FROM p1 } {f m s}
106: do_execsql_test 1.3.2 { SELECT term FROM p2 } {fir mys sql}
107: do_execsql_test 1.3.3 { SELECT term FROM p3 } {firebi sqlite}
108: do_execsql_test 1.4 {
109: SELECT term FROM terms;
110: } {firebird mysql sqlite}
111:
112: fts3_tap_test 1.5 db t1 {1 3 6}
113:
114: #-------------------------------------------------------------------------
115: # A slightly more complicated dataset. This test also verifies that DELETE
116: # operations do not corrupt the prefixes index.
117: #
118: do_execsql_test 2.1 {
119: INSERT INTO t1 VALUES('FTS3 and FTS4 are an SQLite virtual table modules');
120: INSERT INTO t1 VALUES('that allows users to perform full-text searches on');
121: INSERT INTO t1 VALUES('a set of documents. The most common (and');
122: INSERT INTO t1 VALUES('effective) way to describe full-text searches is');
123: INSERT INTO t1 VALUES('"what Google, Yahoo and Altavista do with');
124: INSERT INTO t1 VALUES('documents placed on the World Wide Web". Users');
125: INSERT INTO t1 VALUES('input a term, or series of terms, perhaps');
126: INSERT INTO t1 VALUES('connected by a binary operator or grouped together');
127: INSERT INTO t1 VALUES('into a phrase, and the full-text query system');
128: INSERT INTO t1 VALUES('finds the set of documents that best matches those');
129: INSERT INTO t1 VALUES('terms considering the operators and groupings the');
130: INSERT INTO t1 VALUES('user has specified. This article describes the');
131: INSERT INTO t1 VALUES('deployment and usage of FTS3 and FTS4.');
132: INSERT INTO t1 VALUES('FTS1 and FTS2 are obsolete full-text search');
133: INSERT INTO t1 VALUES('modules for SQLite. There are known issues with');
134: INSERT INTO t1 VALUES('these older modules and their use should be');
135: INSERT INTO t1 VALUES('avoided. Portions of the original FTS3 code were');
136: INSERT INTO t1 VALUES('contributed to the SQLite project by Scott Hess of');
137: INSERT INTO t1 VALUES('Google. It is now developed and maintained as part');
138: INSERT INTO t1 VALUES('of SQLite. ');
139: }
140: fts3_tap_test 2.2 db t1 {1 3 6}
141: do_execsql_test 2.3 { DELETE FROM t1 WHERE docid%2; }
142: fts3_tap_test 2.4 db t1 {1 3 6}
143:
144: do_execsql_test 2.5 { INSERT INTO t1(t1) VALUES('optimize') }
145: fts3_tap_test 2.6 db t1 {1 3 6}
146:
147: do_execsql_test 3.1 {
148: CREATE VIRTUAL TABLE t2 USING fts4(prefix='1,2,3');
149: INSERT INTO t2 VALUES('On 12 September the wind direction turned and');
150: INSERT INTO t2 VALUES('William''s fleet sailed. A storm blew up and the');
151: INSERT INTO t2 VALUES('fleet was forced to take shelter at');
152: INSERT INTO t2 VALUES('Saint-Valery-sur-Somme and again wait for the wind');
153: INSERT INTO t2 VALUES('to change. On 27 September the Norman fleet');
154: INSERT INTO t2 VALUES('finally set sail, landing in England at Pevensey');
155: INSERT INTO t2 VALUES('Bay (Sussex) on 28 September. William then moved');
156: INSERT INTO t2 VALUES('to Hastings, a few miles to the east, where he');
157: INSERT INTO t2 VALUES('built a prefabricated wooden castle for a base of');
158: INSERT INTO t2 VALUES('operations. From there, he ravaged the hinterland');
159: INSERT INTO t2 VALUES('and waited for Harold''s return from the north.');
160: INSERT INTO t2 VALUES('On 12 September the wind direction turned and');
161: INSERT INTO t2 VALUES('William''s fleet sailed. A storm blew up and the');
162: INSERT INTO t2 VALUES('fleet was forced to take shelter at');
163: INSERT INTO t2 VALUES('Saint-Valery-sur-Somme and again wait for the wind');
164: INSERT INTO t2 VALUES('to change. On 27 September the Norman fleet');
165: INSERT INTO t2 VALUES('finally set sail, landing in England at Pevensey');
166: INSERT INTO t2 VALUES('Bay (Sussex) on 28 September. William then moved');
167: INSERT INTO t2 VALUES('to Hastings, a few miles to the east, where he');
168: INSERT INTO t2 VALUES('built a prefabricated wooden castle for a base of');
169: INSERT INTO t2 VALUES('operations. From there, he ravaged the hinterland');
170: INSERT INTO t2 VALUES('and waited for Harold''s return from the north.');
171: }
172:
173: fts3_tap_test 3.2 db t2 {1 2 3}
174: do_execsql_test 3.3 { SELECT optimize(t2) FROM t2 LIMIT 1 } {{Index optimized}}
175: fts3_tap_test 3.4 db t2 {1 2 3}
176:
177:
178: #-------------------------------------------------------------------------
179: # Simple tests for reading the prefix-index.
180: #
181: do_execsql_test 4.1 {
182: CREATE VIRTUAL TABLE t3 USING fts4(prefix="1,4");
183: INSERT INTO t3 VALUES('one two three');
184: INSERT INTO t3 VALUES('four five six');
185: INSERT INTO t3 VALUES('seven eight nine');
186: }
187: do_execsql_test 4.2 {
188: SELECT * FROM t3 WHERE t3 MATCH 'f*'
189: } {{four five six}}
190: do_execsql_test 4.3 {
191: SELECT * FROM t3 WHERE t3 MATCH 'four*'
192: } {{four five six}}
193: do_execsql_test 4.4 {
194: SELECT * FROM t3 WHERE t3 MATCH 's*'
195: } {{four five six} {seven eight nine}}
196: do_execsql_test 4.5 {
197: SELECT * FROM t3 WHERE t3 MATCH 'sev*'
198: } {{seven eight nine}}
199: do_execsql_test 4.6 {
200: SELECT * FROM t3 WHERE t3 MATCH 'one*'
201: } {{one two three}}
202:
203: #-------------------------------------------------------------------------
204: # Syntax tests.
205: #
206: do_catchsql_test 5.1 {
207: CREATE VIRTUAL TABLE t4 USING fts4(prefix="abc");
208: } {1 {error parsing prefix parameter: abc}}
209: do_catchsql_test 5.2 {
210: CREATE VIRTUAL TABLE t4 USING fts4(prefix="");
211: } {0 {}}
212:
213: finish_test
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