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#include <gtest/gtest.h>
#include <memory>
#include <string>
#include <vector>
#include "grammar.h"
#include "mocks/mock_fast_intersector.h"
#include "mocks/mock_matchings_finder.h"
#include "mocks/mock_rule_extractor.h"
#include "mocks/mock_sampler.h"
#include "mocks/mock_scorer.h"
#include "mocks/mock_vocabulary.h"
#include "phrase_builder.h"
#include "phrase_location.h"
#include "rule_factory.h"
using namespace std;
using namespace ::testing;
namespace extractor {
namespace {
class RuleFactoryTest : public Test {
protected:
virtual void SetUp() {
finder = make_shared<MockMatchingsFinder>();
fast_intersector = make_shared<MockFastIntersector>();
vocabulary = make_shared<MockVocabulary>();
EXPECT_CALL(*vocabulary, GetTerminalValue(2)).WillRepeatedly(Return("a"));
EXPECT_CALL(*vocabulary, GetTerminalValue(3)).WillRepeatedly(Return("b"));
EXPECT_CALL(*vocabulary, GetTerminalValue(4)).WillRepeatedly(Return("c"));
phrase_builder = make_shared<PhraseBuilder>(vocabulary);
scorer = make_shared<MockScorer>();
feature_names = {"f1"};
EXPECT_CALL(*scorer, GetFeatureNames())
.WillRepeatedly(Return(feature_names));
sampler = make_shared<MockSampler>();
EXPECT_CALL(*sampler, Sample(_))
.WillRepeatedly(Return(PhraseLocation(0, 1)));
Phrase phrase;
vector<double> scores = {0.5};
vector<pair<int, int> > phrase_alignment = {make_pair(0, 0)};
vector<Rule> rules = {Rule(phrase, phrase, scores, phrase_alignment)};
extractor = make_shared<MockRuleExtractor>();
EXPECT_CALL(*extractor, ExtractRules(_, _))
.WillRepeatedly(Return(rules));
}
vector<string> feature_names;
shared_ptr<MockMatchingsFinder> finder;
shared_ptr<MockFastIntersector> fast_intersector;
shared_ptr<MockVocabulary> vocabulary;
shared_ptr<PhraseBuilder> phrase_builder;
shared_ptr<MockScorer> scorer;
shared_ptr<MockSampler> sampler;
shared_ptr<MockRuleExtractor> extractor;
shared_ptr<HieroCachingRuleFactory> factory;
};
TEST_F(RuleFactoryTest, TestGetGrammarDifferentWords) {
factory = make_shared<HieroCachingRuleFactory>(finder, fast_intersector,
phrase_builder, extractor, vocabulary, sampler, scorer, 1, 10, 2, 3, 5);
EXPECT_CALL(*finder, Find(_, _, _))
.Times(6)
.WillRepeatedly(Return(PhraseLocation(0, 1)));
EXPECT_CALL(*fast_intersector, Intersect(_, _, _))
.Times(1)
.WillRepeatedly(Return(PhraseLocation(0, 1)));
vector<int> word_ids = {2, 3, 4};
Grammar grammar = factory->GetGrammar(word_ids);
EXPECT_EQ(feature_names, grammar.GetFeatureNames());
EXPECT_EQ(7, grammar.GetRules().size());
}
TEST_F(RuleFactoryTest, TestGetGrammarRepeatingWords) {
factory = make_shared<HieroCachingRuleFactory>(finder, fast_intersector,
phrase_builder, extractor, vocabulary, sampler, scorer, 1, 10, 2, 3, 5);
EXPECT_CALL(*finder, Find(_, _, _))
.Times(12)
.WillRepeatedly(Return(PhraseLocation(0, 1)));
EXPECT_CALL(*fast_intersector, Intersect(_, _, _))
.Times(16)
.WillRepeatedly(Return(PhraseLocation(0, 1)));
vector<int> word_ids = {2, 3, 4, 2, 3};
Grammar grammar = factory->GetGrammar(word_ids);
EXPECT_EQ(feature_names, grammar.GetFeatureNames());
EXPECT_EQ(28, grammar.GetRules().size());
}
} // namespace
} // namespace extractor
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