/* * Copyright (C) 2018 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "utils/strings/substitute.h" #include <vector> #include "gmock/gmock.h" #include "gtest/gtest.h" #include "utils/strings/stringpiece.h" namespace libtextclassifier3 { namespace { TEST(SubstituteTest, Substitute) { EXPECT_EQ("Hello, world!", strings::Substitute("$0, $1!", {"Hello", "world"})); // Out of order. EXPECT_EQ("world, Hello!", strings::Substitute("$1, $0!", {"Hello", "world"})); EXPECT_EQ("b, a, c, b", strings::Substitute("$1, $0, $2, $1", {"a", "b", "c"})); // Literal $ EXPECT_EQ("$", strings::Substitute("$$", {})); EXPECT_EQ("$1", strings::Substitute("$$1", {})); const char* null_cstring = nullptr; EXPECT_EQ("Text: ''", strings::Substitute("Text: '$0'", {null_cstring})); } } // namespace } // namespace libtextclassifier3