Function TEST

external/sentencepiece/src/char_model_test.cc:51–107

}

TEST(ModelTest, EncodeTest) {
  ModelProto model_proto = MakeBaseModelProto();

  AddPiece(&model_proto, WS, 0.0);
  AddPiece(&model_proto, "a", 0.1);
  AddPiece(&model_proto, "b", 0.2);
  AddPiece(&model_proto, "c", 0.3);
  AddPiece(&model_proto, "d", 0.4);
  AddPiece(&model_proto, "ABC", 0.4);
  model_proto.mutable_pieces(8)->set_type(
      ModelProto::SentencePiece::USER_DEFINED);

  const Model model(model_proto);

  EncodeResult result;

  result = model.Encode("");
  EXPECT_TRUE(result.empty());

  result = model.Encode(WS "a" WS "b" WS "c");
  EXPECT_EQ(6, result.size());
  EXPECT_EQ(WS, result[0].first);
  EXPECT_EQ("a", result[1].first);
  EXPECT_EQ(WS, result[2].first);
  EXPECT_EQ("b", result[3].first);
  EXPECT_EQ(WS, result[4].first);
  EXPECT_EQ("c", result[5].first);

  result = model.Encode(WS "ab" WS "cd" WS "abc");
  EXPECT_EQ(10, result.size());
  EXPECT_EQ(WS, result[0].first);
  EXPECT_EQ("a", result[1].first);
  EXPECT_EQ("b", result[2].first);
  EXPECT_EQ(WS, result[3].first);
  EXPECT_EQ("c", result[4].first);
  EXPECT_EQ("d", result[5].first);
  EXPECT_EQ(WS, result[6].first);
  EXPECT_EQ("a", result[7].first);
  EXPECT_EQ("b", result[8].first);
  EXPECT_EQ("c", result[9].first);

  // makes a broken utf-8
  const std::string broken_utf8 = std::string("あ").substr(0, 1);
  result = model.Encode(broken_utf8);
  EXPECT_EQ(1, result.size());
  EXPECT_EQ(broken_utf8, result[0].first);

  // "ABC" is treated as one piece, as it is USER_DEFINED.
  result = model.Encode(WS "abABCcd");
  EXPECT_EQ(6, result.size());
  EXPECT_EQ(WS, result[0].first);
  EXPECT_EQ("a", result[1].first);
  EXPECT_EQ("b", result[2].first);
  EXPECT_EQ("ABC", result[3].first);
  EXPECT_EQ("c", result[4].first);
  EXPECT_EQ("d", result[5].first);
}