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/** @file api_query.cc
* @brief Query-related tests.
*/
/* Copyright (C) 2008,2009,2012,2013,2015,2016,2017 Olly Betts
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#include <config.h>
#include "api_query.h"
#include <xapian.h>
#include "testsuite.h"
#include "testutils.h"
#include "apitest.h"
using namespace std;
/// Regression test - in 1.0.10 and earlier "" was included in the list.
DEFINE_TESTCASE(queryterms1, !backend) {
Xapian::Query query = Xapian::Query::MatchAll;
TEST(query.get_terms_begin() == query.get_terms_end());
query = Xapian::Query(query.OP_AND_NOT, query, Xapian::Query("fair"));
TEST_EQUAL(*query.get_terms_begin(), "fair");
return true;
}
DEFINE_TESTCASE(matchall2, !backend) {
TEST_STRINGS_EQUAL(Xapian::Query::MatchAll.get_description(),
"Query(<alldocuments>)");
return true;
}
DEFINE_TESTCASE(matchnothing1, !backend) {
TEST_STRINGS_EQUAL(Xapian::Query::MatchNothing.get_description(),
"Query()");
vector<Xapian::Query> subqs;
subqs.push_back(Xapian::Query("foo"));
subqs.push_back(Xapian::Query::MatchNothing);
Xapian::Query q(Xapian::Query::OP_AND, subqs.begin(), subqs.end());
TEST_STRINGS_EQUAL(q.get_description(), "Query()");
Xapian::Query q2(Xapian::Query::OP_AND,
Xapian::Query("foo"), Xapian::Query::MatchNothing);
TEST_STRINGS_EQUAL(q2.get_description(), "Query()");
return true;
}
DEFINE_TESTCASE(overload1, !backend) {
Xapian::Query q;
q = Xapian::Query("foo") & Xapian::Query("bar");
TEST_STRINGS_EQUAL(q.get_description(), "Query((foo AND bar))");
q = Xapian::Query("foo") &~ Xapian::Query("bar");
TEST_STRINGS_EQUAL(q.get_description(), "Query((foo AND_NOT bar))");
q = ~Xapian::Query("bar");
TEST_STRINGS_EQUAL(q.get_description(), "Query((<alldocuments> AND_NOT bar))");
q = Xapian::Query("foo") & Xapian::Query::MatchNothing;
TEST_STRINGS_EQUAL(q.get_description(), "Query()");
q = Xapian::Query("foo") | Xapian::Query("bar");
TEST_STRINGS_EQUAL(q.get_description(), "Query((foo OR bar))");
q = Xapian::Query("foo") | Xapian::Query::MatchNothing;
TEST_STRINGS_EQUAL(q.get_description(), "Query(foo)");
q = Xapian::Query("foo") ^ Xapian::Query("bar");
TEST_STRINGS_EQUAL(q.get_description(), "Query((foo XOR bar))");
q = Xapian::Query("foo") ^ Xapian::Query::MatchNothing;
TEST_STRINGS_EQUAL(q.get_description(), "Query(foo)");
q = 1.25 * (Xapian::Query("one") | Xapian::Query("two"));
TEST_STRINGS_EQUAL(q.get_description(), "Query(1.25 * (one OR two))");
q = (Xapian::Query("one") & Xapian::Query("two")) * 42;
TEST_STRINGS_EQUAL(q.get_description(), "Query(42 * (one AND two))");
q = Xapian::Query("one") / 2.0;
TEST_STRINGS_EQUAL(q.get_description(), "Query(0.5 * one)");
return true;
}
/** Regression test and feature test.
*
* This threw AssertionError in 1.0.9 and earlier (bug#201) and gave valgrind
* errors in 1.0.11 and earlier (bug#349).
*
* Currently the OR-subquery case is supported, other operators aren't.
*/
DEFINE_TESTCASE(possubqueries1, writable) {
Xapian::WritableDatabase db = get_writable_database();
Xapian::Document doc;
doc.add_posting("a", 1);
doc.add_posting("b", 2);
doc.add_posting("c", 3);
db.add_document(doc);
Xapian::Query a_or_b(Xapian::Query::OP_OR,
Xapian::Query("a"),
Xapian::Query("b"));
Xapian::Query near(Xapian::Query::OP_NEAR, a_or_b, a_or_b);
// As of 1.3.0, we no longer rearrange queries at this point, so check
// that we don't.
TEST_STRINGS_EQUAL(near.get_description(),
"Query(((a OR b) NEAR 2 (a OR b)))");
Xapian::Query phrase(Xapian::Query::OP_PHRASE, a_or_b, a_or_b);
TEST_STRINGS_EQUAL(phrase.get_description(),
"Query(((a OR b) PHRASE 2 (a OR b)))");
Xapian::Query a_and_b(Xapian::Query::OP_AND,
Xapian::Query("a"),
Xapian::Query("b"));
Xapian::Query a_near_b(Xapian::Query::OP_NEAR,
Xapian::Query("a"),
Xapian::Query("b"));
Xapian::Query a_phrs_b(Xapian::Query::OP_PHRASE,
Xapian::Query("a"),
Xapian::Query("b"));
Xapian::Query c("c");
// FIXME: The plan is to actually try to support the cases below, but
// for now at least ensure they are cleanly rejected.
Xapian::Enquire enq(db);
TEST_EXCEPTION(Xapian::UnimplementedError,
Xapian::Query q(Xapian::Query::OP_NEAR, a_and_b, c);
enq.set_query(q);
(void)enq.get_mset(0, 10));
TEST_EXCEPTION(Xapian::UnimplementedError,
Xapian::Query q(Xapian::Query::OP_NEAR, a_near_b, c);
enq.set_query(q);
(void)enq.get_mset(0, 10));
TEST_EXCEPTION(Xapian::UnimplementedError,
Xapian::Query q(Xapian::Query::OP_NEAR, a_phrs_b, c);
enq.set_query(q);
(void)enq.get_mset(0, 10));
TEST_EXCEPTION(Xapian::UnimplementedError,
Xapian::Query q(Xapian::Query::OP_PHRASE, a_and_b, c);
enq.set_query(q);
(void)enq.get_mset(0, 10));
TEST_EXCEPTION(Xapian::UnimplementedError,
Xapian::Query q(Xapian::Query::OP_PHRASE, a_near_b, c);
enq.set_query(q);
(void)enq.get_mset(0, 10));
TEST_EXCEPTION(Xapian::UnimplementedError,
Xapian::Query q(Xapian::Query::OP_PHRASE, a_phrs_b, c);
enq.set_query(q);
(void)enq.get_mset(0, 10));
return true;
}
/// Test that XOR handles all remaining subqueries running out at the same
// time.
DEFINE_TESTCASE(xor3, backend) {
Xapian::Database db = get_database("apitest_simpledata");
const char * subqs[] = {
"hack", "which", "paragraph", "is", "return"
};
// Document where the subqueries run out *does* match XOR:
Xapian::Query q(Xapian::Query::OP_XOR, subqs, subqs + 5);
Xapian::Enquire enq(db);
enq.set_query(q);
Xapian::MSet mset = enq.get_mset(0, 10);
TEST_EQUAL(mset.size(), 3);
TEST_EQUAL(*mset[0], 4);
TEST_EQUAL(*mset[1], 2);
TEST_EQUAL(*mset[2], 3);
// Document where the subqueries run out *does not* match XOR:
q = Xapian::Query(Xapian::Query::OP_XOR, subqs, subqs + 4);
enq.set_query(q);
mset = enq.get_mset(0, 10);
TEST_EQUAL(mset.size(), 4);
TEST_EQUAL(*mset[0], 5);
TEST_EQUAL(*mset[1], 4);
TEST_EQUAL(*mset[2], 2);
TEST_EQUAL(*mset[3], 3);
return true;
}
/// Check encoding of non-UTF8 terms in query descriptions.
DEFINE_TESTCASE(nonutf8termdesc1, !backend) {
TEST_EQUAL(Xapian::Query("\xc0\x80\xf5\x80\x80\x80\xfe\xff").get_description(),
"Query(\\xc0\\x80\\xf5\\x80\\x80\\x80\\xfe\\xff)");
TEST_EQUAL(Xapian::Query(string("\x00\x1f", 2)).get_description(),
"Query(\\x00\\x1f)");
// Check that backslashes are encoded so output isn't ambiguous.
TEST_EQUAL(Xapian::Query("back\\slash").get_description(),
"Query(back\\x5cslash)");
// Check that \x7f is escaped.
TEST_EQUAL(Xapian::Query("D\x7f_\x7f~").get_description(),
"Query(D\\x7f_\\x7f~)");
return true;
}
/// Test introspection on Query objects.
DEFINE_TESTCASE(queryintro1, !backend) {
TEST_EQUAL(Xapian::Query::MatchAll.get_type(), Xapian::Query::LEAF_MATCH_ALL);
TEST_EQUAL(Xapian::Query::MatchAll.get_num_subqueries(), 0);
TEST_EQUAL(Xapian::Query::MatchNothing.get_type(), Xapian::Query::LEAF_MATCH_NOTHING);
TEST_EQUAL(Xapian::Query::MatchNothing.get_num_subqueries(), 0);
Xapian::Query q;
q = Xapian::Query(q.OP_AND_NOT, Xapian::Query::MatchAll, Xapian::Query("fair"));
TEST_EQUAL(q.get_type(), q.OP_AND_NOT);
TEST_EQUAL(q.get_num_subqueries(), 2);
TEST_EQUAL(q.get_subquery(0).get_type(), q.LEAF_MATCH_ALL);
TEST_EQUAL(q.get_subquery(1).get_type(), q.LEAF_TERM);
q = Xapian::Query("foo") & Xapian::Query("bar");
TEST_EQUAL(q.get_type(), q.OP_AND);
q = Xapian::Query("foo") &~ Xapian::Query("bar");
TEST_EQUAL(q.get_type(), q.OP_AND_NOT);
q = ~Xapian::Query("bar");
TEST_EQUAL(q.get_type(), q.OP_AND_NOT);
q = Xapian::Query("foo") | Xapian::Query("bar");
TEST_EQUAL(q.get_type(), q.OP_OR);
q = Xapian::Query("foo") ^ Xapian::Query("bar");
TEST_EQUAL(q.get_type(), q.OP_XOR);
q = 1.25 * (Xapian::Query("one") | Xapian::Query("two"));
TEST_EQUAL(q.get_type(), q.OP_SCALE_WEIGHT);
TEST_EQUAL(q.get_num_subqueries(), 1);
TEST_EQUAL(q.get_subquery(0).get_type(), q.OP_OR);
q = Xapian::Query("one") / 2.0;
TEST_EQUAL(q.get_type(), q.OP_SCALE_WEIGHT);
TEST_EQUAL(q.get_num_subqueries(), 1);
TEST_EQUAL(q.get_subquery(0).get_type(), q.LEAF_TERM);
q = Xapian::Query(q.OP_NEAR, Xapian::Query("a"), Xapian::Query("b"));
TEST_EQUAL(q.get_type(), q.OP_NEAR);
TEST_EQUAL(q.get_num_subqueries(), 2);
TEST_EQUAL(q.get_subquery(0).get_type(), q.LEAF_TERM);
TEST_EQUAL(q.get_subquery(1).get_type(), q.LEAF_TERM);
q = Xapian::Query(q.OP_PHRASE, Xapian::Query("c"), Xapian::Query("d"));
TEST_EQUAL(q.get_type(), q.OP_PHRASE);
TEST_EQUAL(q.get_num_subqueries(), 2);
TEST_EQUAL(q.get_subquery(0).get_type(), q.LEAF_TERM);
TEST_EQUAL(q.get_subquery(1).get_type(), q.LEAF_TERM);
return true;
}
/// Regression test for bug introduced in 1.3.1 and fixed in 1.3.3.
// We were incorrectly converting a term which indexed all docs and was used
// in an unweighted phrase into an all docs postlist, so check that this
// case actually works.
DEFINE_TESTCASE(phrasealldocs1, backend) {
Xapian::Database db = get_database("apitest_declen");
Xapian::Query q;
const char * phrase[] = { "this", "is", "the" };
q = Xapian::Query(q.OP_AND_NOT,
Xapian::Query("paragraph"),
Xapian::Query(q.OP_PHRASE, phrase, phrase + 3));
Xapian::Enquire enq(db);
enq.set_query(q);
Xapian::MSet mset = enq.get_mset(0, 10);
TEST_EQUAL(mset.size(), 3);
return true;
}
struct wildcard_testcase {
const char * pattern;
Xapian::termcount max_expansion;
char max_type;
const char * terms[4];
};
#define WILDCARD_EXCEPTION { 0, 0, 0, "" }
static const
wildcard_testcase wildcard1_testcases[] = {
// Tries to expand to 7 terms.
{ "th", 6, 'E', WILDCARD_EXCEPTION },
{ "thou", 1, 'E', { "though", 0, 0, 0 } },
{ "s", 2, 'F', { "say", "search", 0, 0 } },
{ "s", 2, 'M', { "simpl", "so", 0, 0 } },
{ 0, 0, 0, { 0, 0, 0, 0 } }
};
DEFINE_TESTCASE(wildcard1, backend) {
// FIXME: The counting of terms the wildcard expands to is per subdatabase,
// so the wildcard may expand to more terms than the limit if some aren't
// in all subdatabases. Also WILDCARD_LIMIT_MOST_FREQUENT uses the
// frequency from the subdatabase, and so may select different terms in
// each subdatabase.
SKIP_TEST_FOR_BACKEND("multi");
Xapian::Database db = get_database("apitest_simpledata");
Xapian::Enquire enq(db);
const Xapian::Query::op o = Xapian::Query::OP_WILDCARD;
const wildcard_testcase * p = wildcard1_testcases;
while (p->pattern) {
tout << p->pattern << endl;
const char * const * tend = p->terms + 4;
while (tend[-1] == NULL) --tend;
bool expect_exception = (tend - p->terms == 4 && tend[-1][0] == '\0');
Xapian::Query q;
if (p->max_type) {
int max_type;
switch (p->max_type) {
case 'E':
max_type = Xapian::Query::WILDCARD_LIMIT_ERROR;
break;
case 'F':
max_type = Xapian::Query::WILDCARD_LIMIT_FIRST;
break;
case 'M':
max_type = Xapian::Query::WILDCARD_LIMIT_MOST_FREQUENT;
break;
default:
return false;
}
q = Xapian::Query(o, p->pattern, p->max_expansion, max_type);
} else {
q = Xapian::Query(o, p->pattern, p->max_expansion);
}
enq.set_query(q);
try {
Xapian::MSet mset = enq.get_mset(0, 10);
TEST(!expect_exception);
q = Xapian::Query(q.OP_SYNONYM, p->terms, tend);
enq.set_query(q);
Xapian::MSet mset2 = enq.get_mset(0, 10);
TEST_EQUAL(mset.size(), mset2.size());
TEST(mset_range_is_same(mset, 0, mset2, 0, mset.size()));
} catch (const Xapian::WildcardError &) {
TEST(expect_exception);
}
++p;
}
return true;
}
/// Regression test for #696, fixed in 1.3.4.
DEFINE_TESTCASE(wildcard2, backend) {
// FIXME: The counting of terms the wildcard expands to is per subdatabase,
// so the wildcard may expand to more terms than the limit if some aren't
// in all subdatabases. Also WILDCARD_LIMIT_MOST_FREQUENT uses the
// frequency from the subdatabase, and so may select different terms in
// each subdatabase.
SKIP_TEST_FOR_BACKEND("multi");
Xapian::Database db = get_database("apitest_simpledata");
Xapian::Enquire enq(db);
const Xapian::Query::op o = Xapian::Query::OP_WILDCARD;
const int max_type = Xapian::Query::WILDCARD_LIMIT_MOST_FREQUENT;
Xapian::Query q0(o, "w", 2, max_type);
Xapian::Query q(o, "s", 2, max_type);
Xapian::Query q2(o, "t", 2, max_type);
q = Xapian::Query(q.OP_OR, q0, q);
q = Xapian::Query(q.OP_OR, q, q2);
enq.set_query(q);
Xapian::MSet mset = enq.get_mset(0, 10);
TEST_EQUAL(mset.size(), 6);
return true;
}
DEFINE_TESTCASE(dualprefixwildcard1, backend) {
Xapian::Database db = get_database("apitest_simpledata");
Xapian::Query q(Xapian::Query::OP_SYNONYM,
Xapian::Query(Xapian::Query::OP_WILDCARD, "fo"),
Xapian::Query(Xapian::Query::OP_WILDCARD, "Sfo"));
tout << q.get_description() << endl;
Xapian::Enquire enq(db);
enq.set_query(q);
TEST_EQUAL(enq.get_mset(0, 5).size(), 2);
return true;
}
struct positional_testcase {
int window;
const char * terms[4];
Xapian::docid result;
};
static const
positional_testcase loosephrase1_testcases[] = {
{ 5, { "expect", "to", "mset", 0 }, 0 },
{ 5, { "word", "well", "the", 0 }, 2 },
{ 5, { "if", "word", "doesnt", 0 }, 0 },
{ 5, { "at", "line", "three", 0 }, 0 },
{ 5, { "paragraph", "other", "the", 0 }, 0 },
{ 5, { "other", "the", "with", 0 }, 0 },
{ 0, { 0, 0, 0, 0 }, 0 }
};
/// Regression test for bug fixed in 1.3.3 and 1.2.21.
DEFINE_TESTCASE(loosephrase1, backend) {
Xapian::Database db = get_database("apitest_simpledata");
Xapian::Enquire enq(db);
const positional_testcase * p = loosephrase1_testcases;
while (p->window) {
const char * const * tend = p->terms + 4;
while (tend[-1] == NULL) --tend;
Xapian::Query q(Xapian::Query::OP_PHRASE, p->terms, tend, p->window);
enq.set_query(q);
Xapian::MSet mset = enq.get_mset(0, 10);
if (p->result == 0) {
TEST(mset.empty());
} else {
TEST_EQUAL(mset.size(), 1);
TEST_EQUAL(*mset[0], p->result);
}
++p;
}
return true;
}
static const
positional_testcase loosenear1_testcases[] = {
{ 4, { "test", "the", "with", 0 }, 1 },
{ 4, { "expect", "word", "the", 0 }, 2 },
{ 4, { "line", "be", "blank", 0 }, 1 },
{ 2, { "banana", "banana", 0, 0 }, 0 },
{ 3, { "banana", "banana", 0, 0 }, 0 },
{ 2, { "word", "word", 0, 0 }, 2 },
{ 4, { "work", "meant", "work", 0 }, 0 },
{ 4, { "this", "one", "yet", "one" }, 0 },
{ 0, { 0, 0, 0, 0 }, 0 }
};
/// Regression tests for bugs fixed in 1.3.3 and 1.2.21.
DEFINE_TESTCASE(loosenear1, backend) {
Xapian::Database db = get_database("apitest_simpledata");
Xapian::Enquire enq(db);
const positional_testcase * p = loosenear1_testcases;
while (p->window) {
const char * const * tend = p->terms + 4;
while (tend[-1] == NULL) --tend;
Xapian::Query q(Xapian::Query::OP_NEAR, p->terms, tend, p->window);
enq.set_query(q);
Xapian::MSet mset = enq.get_mset(0, 10);
if (p->result == 0) {
TEST(mset.empty());
} else {
TEST_EQUAL(mset.size(), 1);
TEST_EQUAL(*mset[0], p->result);
}
++p;
}
return true;
}
/// Regression test for bug fixed in 1.3.6 - the first case segfaulted in 1.3.x.
DEFINE_TESTCASE(complexphrase1, backend) {
Xapian::Database db = get_database("apitest_simpledata");
Xapian::Enquire enq(db);
Xapian::Query query(Xapian::Query::OP_PHRASE,
Xapian::Query("a") | Xapian::Query("b"),
Xapian::Query("i"));
enq.set_query(query);
TEST(enq.get_mset(0, 10).empty());
Xapian::Query query2(Xapian::Query::OP_PHRASE,
Xapian::Query("a") | Xapian::Query("b"),
Xapian::Query("c"));
enq.set_query(query2);
TEST(enq.get_mset(0, 10).empty());
return true;
}
/// Regression test for bug fixed in 1.3.6 - the first case segfaulted in 1.3.x.
DEFINE_TESTCASE(complexnear1, backend) {
Xapian::Database db = get_database("apitest_simpledata");
Xapian::Enquire enq(db);
Xapian::Query query(Xapian::Query::OP_NEAR,
Xapian::Query("a") | Xapian::Query("b"),
Xapian::Query("i"));
enq.set_query(query);
TEST(enq.get_mset(0, 10).empty());
Xapian::Query query2(Xapian::Query::OP_NEAR,
Xapian::Query("a") | Xapian::Query("b"),
Xapian::Query("c"));
enq.set_query(query2);
TEST(enq.get_mset(0, 10).empty());
return true;
}
/// Check subqueries of MatchAll, MatchNothing and PostingSource are supported.
DEFINE_TESTCASE(complexphrase2, backend) {
Xapian::Database db = get_database("apitest_simpledata");
Xapian::Enquire enq(db);
Xapian::ValueWeightPostingSource ps(0);
Xapian::Query subqs[3] = {
Xapian::Query(Xapian::Query::OP_PHRASE,
Xapian::Query("a"),
Xapian::Query(&ps)),
Xapian::Query(Xapian::Query::OP_PHRASE,
Xapian::Query("and"),
Xapian::Query::MatchAll),
Xapian::Query(Xapian::Query::OP_PHRASE,
Xapian::Query("at"),
Xapian::Query::MatchNothing)
};
Xapian::Query query(Xapian::Query::OP_OR, subqs, subqs + 3);
enq.set_query(query);
(void)enq.get_mset(0, 10);
return true;
}
/// Check subqueries of MatchAll, MatchNothing and PostingSource are supported.
DEFINE_TESTCASE(complexnear2, backend) {
Xapian::Database db = get_database("apitest_simpledata");
Xapian::Enquire enq(db);
Xapian::ValueWeightPostingSource ps(0);
Xapian::Query subqs[3] = {
Xapian::Query(Xapian::Query::OP_NEAR,
Xapian::Query("a"),
Xapian::Query(&ps)),
Xapian::Query(Xapian::Query::OP_NEAR,
Xapian::Query("and"),
Xapian::Query::MatchAll),
Xapian::Query(Xapian::Query::OP_NEAR,
Xapian::Query("at"),
Xapian::Query::MatchNothing)
};
Xapian::Query query(Xapian::Query::OP_OR, subqs, subqs + 3);
enq.set_query(query);
(void)enq.get_mset(0, 10);
return true;
}
/// A zero estimated number of matches broke the code to round the estimate.
DEFINE_TESTCASE(zeroestimate1, backend) {
Xapian::Enquire enquire(get_database("apitest_simpledata"));
Xapian::Query phrase(Xapian::Query::OP_PHRASE,
Xapian::Query("absolute"),
Xapian::Query("rubbish"));
enquire.set_query(phrase &~ Xapian::Query("queri"));
Xapian::MSet mset = enquire.get_mset(0, 0);
TEST_EQUAL(mset.get_matches_estimated(), 0);
return true;
}
/// Feature test for OR under OP_PHRASE support added in 1.4.3.
DEFINE_TESTCASE(complexphrase3, backend) {
Xapian::Database db = get_database("apitest_simpledata");
Xapian::Enquire enq(db);
Xapian::Query query(Xapian::Query::OP_PHRASE,
Xapian::Query("is") | Xapian::Query("as") | Xapian::Query("be"),
Xapian::Query("a"));
enq.set_query(query);
mset_expect_order(enq.get_mset(0, 10), 1);
Xapian::Query query2(Xapian::Query::OP_PHRASE,
Xapian::Query("a"),
Xapian::Query("is") | Xapian::Query("as") | Xapian::Query("be"));
enq.set_query(query2);
mset_expect_order(enq.get_mset(0, 10));
Xapian::Query query3(Xapian::Query::OP_PHRASE,
Xapian::Query("one") | Xapian::Query("with"),
Xapian::Query("the") | Xapian::Query("of") | Xapian::Query("line"));
enq.set_query(query3);
mset_expect_order(enq.get_mset(0, 10), 1, 4, 5);
Xapian::Query query4(Xapian::Query::OP_PHRASE,
Xapian::Query("the") | Xapian::Query("of") | Xapian::Query("line"),
Xapian::Query("one") | Xapian::Query("with"));
enq.set_query(query4);
mset_expect_order(enq.get_mset(0, 10));
return true;
}
/// Feature test for OR under OP_NEAR support added in 1.4.3.
DEFINE_TESTCASE(complexnear3, backend) {
Xapian::Database db = get_database("apitest_simpledata");
Xapian::Enquire enq(db);
Xapian::Query query(Xapian::Query::OP_NEAR,
Xapian::Query("is") | Xapian::Query("as") | Xapian::Query("be"),
Xapian::Query("a"));
enq.set_query(query);
mset_expect_order(enq.get_mset(0, 10), 1);
Xapian::Query query2(Xapian::Query::OP_NEAR,
Xapian::Query("a"),
Xapian::Query("is") | Xapian::Query("as") | Xapian::Query("be"));
enq.set_query(query2);
mset_expect_order(enq.get_mset(0, 10), 1);
Xapian::Query query3(Xapian::Query::OP_NEAR,
Xapian::Query("one") | Xapian::Query("with"),
Xapian::Query("the") | Xapian::Query("of") | Xapian::Query("line"));
enq.set_query(query3);
mset_expect_order(enq.get_mset(0, 10), 1, 4, 5);
Xapian::Query query4(Xapian::Query::OP_NEAR,
Xapian::Query("the") | Xapian::Query("of") | Xapian::Query("line"),
Xapian::Query("one") | Xapian::Query("with"));
enq.set_query(query4);
mset_expect_order(enq.get_mset(0, 10), 1, 4, 5);
return true;
}
static void
gen_subdbwithoutpos1_db(Xapian::WritableDatabase& db, const string&)
{
Xapian::Document doc;
doc.add_term("this");
doc.add_term("paragraph");
db.add_document(doc);
}
DEFINE_TESTCASE(subdbwithoutpos1, generated) {
Xapian::Database db(get_database("apitest_simpledata"));
Xapian::Query q(Xapian::Query::OP_PHRASE,
Xapian::Query("this"),
Xapian::Query("paragraph"));
Xapian::Enquire enq1(db);
enq1.set_query(q);
Xapian::MSet mset1 = enq1.get_mset(0, 10);
TEST_EQUAL(mset1.size(), 3);
Xapian::Database db2 =
get_database("subdbwithoutpos1", gen_subdbwithoutpos1_db);
// If a database has no positional info, OP_PHRASE -> OP_AND.
Xapian::Enquire enq2(db2);
enq2.set_query(q);
Xapian::MSet mset2 = enq2.get_mset(0, 10);
TEST_EQUAL(mset2.size(), 1);
// If one sub-database in a combined database has no positional info but
// other sub-databases do, then we shouldn't convert OP_PHRASE to OP_AND
// (but prior to 1.4.3 we did).
db.add_database(db2);
Xapian::Enquire enq3(db);
enq3.set_query(q);
Xapian::MSet mset3 = enq3.get_mset(0, 10);
TEST_EQUAL(mset3.size(), 3);
return true;
}
// Regression test for bug fixed in 1.4.4 and 1.2.25.
DEFINE_TESTCASE(notandor1, backend) {
Xapian::Database db(get_database("etext"));
Xapian::Query q =
Xapian::Query("the") &~ (Xapian::Query("friedrich") &
(Xapian::Query("day") | Xapian::Query("night")));
Xapian::Enquire enq(db);
enq.set_query(q);
Xapian::MSet mset = enq.get_mset(0, 10, db.get_doccount());
TEST_EQUAL(mset.get_matches_estimated(), 344);
return true;
}
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