1 /* Copyright 2017 The TensorFlow Authors. All Rights Reserved. 2 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 ==============================================================================*/ 15 16 #include "tensorflow/core/lib/gtl/compactptrset.h" 17 18 #include "tensorflow/core/lib/hash/hash.h" 19 #include "tensorflow/core/platform/test.h" 20 #include "tensorflow/core/platform/types.h" 21 22 namespace tensorflow { 23 namespace gtl { 24 namespace { 25 26 typedef CompactPointerSet<const char*> StringSet; 27 28 static std::vector<const char*> SortedContents(const StringSet& set) { 29 std::vector<const char*> contents(set.begin(), set.end()); 30 std::sort(contents.begin(), contents.end()); 31 return contents; 32 } 33 34 TEST(CompactPointerSetTest, Simple) { 35 // Make some aligned and some unaligned pointers. 36 string data = "ABCDEFG"; 37 const char* a = &data[0]; 38 const char* b = &data[1]; 39 const char* c = &data[2]; 40 const char* d = &data[3]; 41 const char* e = &data[4]; 42 const char* f = &data[5]; 43 const char* g = &data[6]; 44 for (const auto& list : std::vector<std::vector<const char*>>({{ 45 {}, // Empty 46 {a}, // Aligned singleton 47 {b}, // Unaligned singleton 48 {nullptr}, // Test insertion of nullptr 49 {a, b, c, d, e, f, g}, // Many 50 }})) { 51 LOG(INFO) << list.size(); 52 53 // Test insert along with accessors. 54 StringSet set; 55 ASSERT_TRUE(set.empty()); 56 for (auto p : list) { 57 ASSERT_EQ(set.count(p), 0); 58 ASSERT_TRUE(set.insert(p).second); 59 ASSERT_EQ(set.count(p), 1); 60 ASSERT_TRUE(set.find(p) != set.end()); 61 } 62 ASSERT_EQ(set.size(), list.size()); 63 64 ASSERT_EQ(SortedContents(set), list); 65 66 // Test copy constructor. 67 { 68 StringSet set2(set); 69 ASSERT_EQ(SortedContents(set2), list); 70 } 71 72 // Test assignment/copying into a destination with different 73 // initial elements. 74 for (const auto& initial : std::vector<std::vector<const char*>>({{ 75 {}, // Empty 76 {a}, // Aligned singleton 77 {b}, // Unaligned singleton 78 {nullptr}, // Test insertion of nullptr 79 {a, b, c, d}, // Many 80 }})) { 81 StringSet dst; 82 for (auto p : initial) { 83 dst.insert(p); 84 } 85 ASSERT_EQ(dst.size(), initial.size()); 86 dst = set; 87 ASSERT_EQ(SortedContents(dst), list); 88 dst.clear(); 89 ASSERT_EQ(dst.size(), 0); 90 } 91 92 // Test erase along with accessors. 93 for (auto p : list) { 94 ASSERT_EQ(set.erase(p), 1); 95 ASSERT_EQ(set.erase(p), 0); 96 } 97 ASSERT_TRUE(set.empty()); 98 ASSERT_EQ(set.size(), 0); 99 } 100 } 101 102 } // namespace 103 } // namespace gtl 104 } // namespace tensorflow 105
