1 // Copyright 2016 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "mojo/public/cpp/bindings/stl_converters.h" 6 7 #include <map> 8 #include <string> 9 #include <vector> 10 11 #include "mojo/public/cpp/bindings/array.h" 12 #include "mojo/public/cpp/bindings/map.h" 13 #include "mojo/public/cpp/bindings/string.h" 14 #include "mojo/public/cpp/bindings/tests/container_test_util.h" 15 #include "mojo/public/interfaces/bindings/tests/test_structs.mojom.h" 16 #include "testing/gtest/include/gtest/gtest.h" 17 18 namespace mojo { 19 namespace test { 20 21 using STLConvertersTest = testing::Test; 22 23 TEST_F(STLConvertersTest, AvoidUnnecessaryCopies) { 24 Array<CopyableType> mojo_array(1); 25 std::vector<CopyableType> stl_vector = UnwrapToSTLType(std::move(mojo_array)); 26 ASSERT_EQ(1u, stl_vector.size()); 27 ASSERT_FALSE(stl_vector[0].copied()); 28 Array<CopyableType> mojo_array2 = WrapSTLType(std::move(stl_vector)); 29 ASSERT_EQ(1u, mojo_array2.size()); 30 ASSERT_FALSE(mojo_array2[0].copied()); 31 32 Map<int32_t, CopyableType> mojo_map; 33 mojo_map.insert(42, CopyableType()); 34 mojo_map[42].ResetCopied(); 35 std::map<int32_t, CopyableType> stl_map = 36 UnwrapToSTLType(std::move(mojo_map)); 37 ASSERT_EQ(1u, stl_map.size()); 38 ASSERT_FALSE(stl_map[42].copied()); 39 Map<int32_t, CopyableType> mojo_map2 = WrapSTLType(std::move(stl_map)); 40 ASSERT_EQ(1u, mojo_map2.size()); 41 ASSERT_FALSE(mojo_map2[42].copied()); 42 } 43 44 TEST_F(STLConvertersTest, RecursiveConversion) { 45 Array<Map<String, Array<int32_t>>> mojo_obj(2); 46 mojo_obj[0] = nullptr; 47 mojo_obj[1]["hello"].push_back(123); 48 mojo_obj[1]["hello"].push_back(456); 49 50 std::vector<std::map<std::string, std::vector<int32_t>>> stl_obj = 51 UnwrapToSTLType(std::move(mojo_obj)); 52 53 ASSERT_EQ(2u, stl_obj.size()); 54 ASSERT_TRUE(stl_obj[0].empty()); 55 ASSERT_EQ(1u, stl_obj[1].size()); 56 ASSERT_EQ(2u, stl_obj[1]["hello"].size()); 57 ASSERT_EQ(123, stl_obj[1]["hello"][0]); 58 ASSERT_EQ(456, stl_obj[1]["hello"][1]); 59 60 Array<Map<String, Array<int32_t>>> mojo_obj2 = 61 WrapSTLType(std::move(stl_obj)); 62 63 ASSERT_EQ(2u, mojo_obj2.size()); 64 ASSERT_EQ(0u, mojo_obj2[0].size()); 65 // The null flag has been lost when converted to std::map. 66 ASSERT_FALSE(mojo_obj2[0].is_null()); 67 ASSERT_EQ(1u, mojo_obj2[1].size()); 68 ASSERT_EQ(2u, mojo_obj2[1]["hello"].size()); 69 ASSERT_EQ(123, mojo_obj2[1]["hello"][0]); 70 ASSERT_EQ(456, mojo_obj2[1]["hello"][1]); 71 } 72 73 TEST_F(STLConvertersTest, StopsAtMojoStruct) { 74 Array<NamedRegionPtr> mojo_obj(1); 75 mojo_obj[0] = NamedRegion::New(); 76 mojo_obj[0]->name.emplace("hello"); 77 mojo_obj[0]->rects.emplace(3); 78 79 std::vector<NamedRegionPtr> stl_obj = UnwrapToSTLType(std::move(mojo_obj)); 80 81 ASSERT_EQ(1u, stl_obj.size()); 82 ASSERT_EQ("hello", stl_obj[0]->name.value()); 83 ASSERT_EQ(3u, stl_obj[0]->rects->size()); 84 85 Array<NamedRegionPtr> mojo_obj2 = WrapSTLType(std::move(stl_obj)); 86 87 ASSERT_EQ(1u, mojo_obj2.size()); 88 ASSERT_EQ("hello", mojo_obj2[0]->name.value()); 89 ASSERT_EQ(3u, mojo_obj2[0]->rects->size()); 90 } 91 92 } // namespace test 93 } // namespace mojo 94
