Working version of the grammar extractor.

1 files changed, 98 insertions, 0 deletions

diff --git a/extractor/rule_factory_test.cc b/extractor/rule_factory_test.cc
new file mode 100644
index 00000000..d6fbab74
--- /dev/null
+++ b/extractor/rule_factory_test.cc
@@ -0,0 +1,98 @@
+#include <gtest/gtest.h>
+
+#include <memory>
+#include <string>
+#include <vector>
+
+#include "grammar.h"
+#include "mocks/mock_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 {
+
+class RuleFactoryTest : public Test {
+ protected:
+  virtual void SetUp() {
+    finder = make_shared<MockMatchingsFinder>();
+    intersector = make_shared<MockIntersector>();
+
+    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));
+
+    factory = make_shared<HieroCachingRuleFactory>(finder, intersector,
+        phrase_builder, extractor, vocabulary, sampler, scorer, 1, 10, 2, 3, 5);
+  }
+
+  vector<string> feature_names;
+  shared_ptr<MockMatchingsFinder> finder;
+  shared_ptr<MockIntersector> 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) {
+  EXPECT_CALL(*finder, Find(_, _, _))
+      .Times(6)
+      .WillRepeatedly(Return(PhraseLocation(0, 1)));
+
+  EXPECT_CALL(*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) {
+  EXPECT_CALL(*finder, Find(_, _, _))
+      .Times(12)
+      .WillRepeatedly(Return(PhraseLocation(0, 1)));
+
+  EXPECT_CALL(*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