void test_rank(Ranker& r, Index& idx, const std::string& encoding)
{
for (size_t i = 0; i < idx.num_docs(); ++i)
{
auto d_id = idx.docs()[i];
corpus::document query{idx.doc_path(d_id), doc_id{i}};
query.encoding(encoding);
auto ranking = r.score(idx, query);
ASSERT_EQUAL(ranking.size(), 10); // default is 10 docs
// since we're searching for a document already in the index, the same
// document should be ranked first, but there are a few duplicate
// documents......
if (ranking[0].first != i)
{
ASSERT_EQUAL(ranking[1].first, i);
ASSERT_APPROX_EQUAL(ranking[0].second, ranking[1].second);
}
}
}
