1 files changed, 83 insertions, 0 deletions
diff --git a/extractor/phrase_test.cc b/extractor/phrase_test.cc
new file mode 100644
index 00000000..3ba9368a
--- /dev/null
+++ b/extractor/phrase_test.cc
@@ -0,0 +1,83 @@
+#include <gtest/gtest.h>
+
+#include <memory>
+#include <vector>
+
+#include "mocks/mock_vocabulary.h"
+#include "phrase.h"
+#include "phrase_builder.h"
+
+using namespace std;
+using namespace ::testing;
+
+namespace extractor {
+namespace {
+
+class PhraseTest : public Test {
+ protected:
+  virtual void SetUp() {
+    shared_ptr<MockVocabulary> vocabulary = make_shared<MockVocabulary>();
+    vector<string> words = {"w1", "w2", "w3", "w4"};
+    for (size_t i = 0; i < words.size(); ++i) {
+      EXPECT_CALL(*vocabulary, GetTerminalValue(i + 1))
+          .WillRepeatedly(Return(words[i]));
+    }
+    shared_ptr<PhraseBuilder> phrase_builder =
+        make_shared<PhraseBuilder>(vocabulary);
+
+    symbols1 = vector<int>{1, 2, 3};
+    phrase1 = phrase_builder->Build(symbols1);
+    symbols2 = vector<int>{1, 2, -1, 3, -2, 4};
+    phrase2 = phrase_builder->Build(symbols2);
+  }
+
+  vector<int> symbols1, symbols2;
+  Phrase phrase1, phrase2;
+};
+
+TEST_F(PhraseTest, TestArity) {
+  EXPECT_EQ(0, phrase1.Arity());
+  EXPECT_EQ(2, phrase2.Arity());
+}
+
+TEST_F(PhraseTest, GetChunkLen) {
+  EXPECT_EQ(3, phrase1.GetChunkLen(0));
+
+  EXPECT_EQ(2, phrase2.GetChunkLen(0));
+  EXPECT_EQ(1, phrase2.GetChunkLen(1));
+  EXPECT_EQ(1, phrase2.GetChunkLen(2));
+}
+
+TEST_F(PhraseTest, TestGet) {
+  EXPECT_EQ(symbols1, phrase1.Get());
+  EXPECT_EQ(symbols2, phrase2.Get());
+}
+
+TEST_F(PhraseTest, TestGetSymbol) {
+  for (size_t i = 0; i < symbols1.size(); ++i) {
+    EXPECT_EQ(symbols1[i], phrase1.GetSymbol(i));
+  }
+  for (size_t i = 0; i < symbols2.size(); ++i) {
+    EXPECT_EQ(symbols2[i], phrase2.GetSymbol(i));
+  }
+}
+
+TEST_F(PhraseTest, TestGetNumSymbols) {
+  EXPECT_EQ(3, phrase1.GetNumSymbols());
+  EXPECT_EQ(6, phrase2.GetNumSymbols());
+}
+
+TEST_F(PhraseTest, TestGetWords) {
+  vector<string> expected_words = {"w1", "w2", "w3"};
+  EXPECT_EQ(expected_words, phrase1.GetWords());
+  expected_words = {"w1", "w2", "w3", "w4"};
+  EXPECT_EQ(expected_words, phrase2.GetWords());
+}
+
+TEST_F(PhraseTest, TestComparator) {
+  EXPECT_FALSE(phrase1 < phrase2);
+  EXPECT_TRUE(phrase2 < phrase1);
+}
+
+} // namespace
+} // namespace extractor