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#include <gtest/gtest.h>
#include <memory>
#include "mocks/mock_data_array.h"
#include "matchings_sampler.h"
#include "phrase_location.h"
using namespace std;
using namespace ::testing;
namespace extractor {
namespace {
class MatchingsSamplerTest : public Test {
protected:
virtual void SetUp() {
vector<int> locations = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
location = PhraseLocation(locations, 2);
data_array = make_shared<MockDataArray>();
for (int i = 0; i < 10; ++i) {
EXPECT_CALL(*data_array, GetSentenceId(i)).WillRepeatedly(Return(i / 2));
}
}
unordered_set<int> blacklisted_sentence_ids;
PhraseLocation location;
shared_ptr<MockDataArray> data_array;
shared_ptr<MatchingsSampler> sampler;
};
TEST_F(MatchingsSamplerTest, TestSample) {
sampler = make_shared<MatchingsSampler>(data_array, 1);
vector<int> expected_locations = {0, 1};
EXPECT_EQ(PhraseLocation(expected_locations, 2),
sampler->Sample(location, blacklisted_sentence_ids));
sampler = make_shared<MatchingsSampler>(data_array, 2);
expected_locations = {0, 1, 6, 7};
EXPECT_EQ(PhraseLocation(expected_locations, 2),
sampler->Sample(location, blacklisted_sentence_ids));
sampler = make_shared<MatchingsSampler>(data_array, 3);
expected_locations = {0, 1, 4, 5, 6, 7};
EXPECT_EQ(PhraseLocation(expected_locations, 2),
sampler->Sample(location, blacklisted_sentence_ids));
sampler = make_shared<MatchingsSampler>(data_array, 7);
expected_locations = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
EXPECT_EQ(PhraseLocation(expected_locations, 2),
sampler->Sample(location, blacklisted_sentence_ids));
}
TEST_F(MatchingsSamplerTest, TestBackoffSample) {
sampler = make_shared<MatchingsSampler>(data_array, 1);
blacklisted_sentence_ids = {0};
vector<int> expected_locations = {2, 3};
EXPECT_EQ(PhraseLocation(expected_locations, 2),
sampler->Sample(location, blacklisted_sentence_ids));
blacklisted_sentence_ids = {0, 1, 2, 3};
expected_locations = {8, 9};
EXPECT_EQ(PhraseLocation(expected_locations, 2),
sampler->Sample(location, blacklisted_sentence_ids));
blacklisted_sentence_ids = {0, 1, 2, 3, 4};
expected_locations = {};
EXPECT_EQ(PhraseLocation(expected_locations, 2),
sampler->Sample(location, blacklisted_sentence_ids));
sampler = make_shared<MatchingsSampler>(data_array, 2);
blacklisted_sentence_ids = {0, 3};
expected_locations = {2, 3, 4, 5};
EXPECT_EQ(PhraseLocation(expected_locations, 2),
sampler->Sample(location, blacklisted_sentence_ids));
sampler = make_shared<MatchingsSampler>(data_array, 3);
blacklisted_sentence_ids = {0, 3};
expected_locations = {2, 3, 4, 5, 8, 9};
EXPECT_EQ(PhraseLocation(expected_locations, 2),
sampler->Sample(location, blacklisted_sentence_ids));
blacklisted_sentence_ids = {0, 2, 3};
expected_locations = {2, 3, 8, 9};
EXPECT_EQ(PhraseLocation(expected_locations, 2),
sampler->Sample(location, blacklisted_sentence_ids));
sampler = make_shared<MatchingsSampler>(data_array, 4);
blacklisted_sentence_ids = {0, 1, 2, 3};
expected_locations = {8, 9};
EXPECT_EQ(PhraseLocation(expected_locations, 2),
sampler->Sample(location, blacklisted_sentence_ids));
blacklisted_sentence_ids = {1, 3};
expected_locations = {0, 1, 4, 5, 8, 9};
EXPECT_EQ(PhraseLocation(expected_locations, 2),
sampler->Sample(location, blacklisted_sentence_ids));
sampler = make_shared<MatchingsSampler>(data_array, 7);
blacklisted_sentence_ids = {0, 1, 2, 3, 4};
expected_locations = {};
EXPECT_EQ(PhraseLocation(expected_locations, 2),
sampler->Sample(location, blacklisted_sentence_ids));
blacklisted_sentence_ids = {0, 2, 4};
expected_locations = {2, 3, 6, 7};
EXPECT_EQ(PhraseLocation(expected_locations, 2),
sampler->Sample(location, blacklisted_sentence_ids));
blacklisted_sentence_ids = {1, 3};
expected_locations = {0, 1, 4, 5, 8, 9};
EXPECT_EQ(PhraseLocation(expected_locations, 2),
sampler->Sample(location, blacklisted_sentence_ids));
}
}
} // namespace extractor
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