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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/searchlib/query/query.h>
#include <vespa/searchlib/query/tree/querybuilder.h>
#include <vespa/searchlib/query/tree/simplequery.h>
#include <vespa/searchlib/query/tree/stackdumpcreator.h>
#include <vespa/vespalib/testkit/test_kit.h>
#include <limits>
using namespace search;
using namespace search::query;
namespace {
void setMaxStackSize(rlim_t maxStackSize)
{
struct rlimit limit;
getrlimit(RLIMIT_STACK, &limit);
limit.rlim_cur = maxStackSize;
setrlimit(RLIMIT_STACK, &limit);
}
}
// NOTE: This test explicitly sets thread stack size and will fail due to
// a stack overflow if the stack usage increases.
TEST("testveryLongQueryResultingInBug6850778") {
const uint32_t NUMITEMS=20000;
setMaxStackSize(4 * 1024 * 1024);
QueryBuilder<SimpleQueryNodeTypes> builder;
for (uint32_t i=0; i <= NUMITEMS; i++) {
builder.addAnd(2);
builder.addStringTerm("a", "", 0, Weight(0));
if (i < NUMITEMS) {
} else {
builder.addStringTerm("b", "", 0, Weight(0));
}
}
Node::UP node = builder.build();
vespalib::string stackDump = StackDumpCreator::create(*node);
QueryNodeResultFactory factory;
Query q(factory, stackDump);
QueryTermList terms;
QueryNodeRefList phrases;
q.getLeafs(terms);
ASSERT_EQUAL(NUMITEMS + 2, terms.size());
}
TEST_MAIN() { TEST_RUN_ALL(); }
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