1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "utils/strings/substitute.h" 18 19 #include <vector> 20 21 #include "gmock/gmock.h" 22 #include "gtest/gtest.h" 23 24 #include "utils/strings/stringpiece.h" 25 26 namespace libtextclassifier3 { 27 namespace { 28 29 TEST(SubstituteTest, Substitute) { 30 EXPECT_EQ("Hello, world!", 31 strings::Substitute("$0, $1!", {"Hello", "world"})); 32 33 // Out of order. 34 EXPECT_EQ("world, Hello!", 35 strings::Substitute("$1, $0!", {"Hello", "world"})); 36 EXPECT_EQ("b, a, c, b", 37 strings::Substitute("$1, $0, $2, $1", {"a", "b", "c"})); 38 39 // Literal $ 40 EXPECT_EQ("$", strings::Substitute("$$", {})); 41 EXPECT_EQ("$1", strings::Substitute("$$1", {})); 42 43 const char* null_cstring = nullptr; 44 EXPECT_EQ("Text: ''", strings::Substitute("Text: '$0'", {null_cstring})); 45 } 46 47 } // namespace 48 } // namespace libtextclassifier3 49
