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      1 // Copyright (c) 2014 The Chromium OS 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 <brillo/map_utils.h>
      6 
      7 #include <string>
      8 
      9 #include <gtest/gtest.h>
     10 
     11 namespace brillo {
     12 
     13 class MapUtilsTest : public ::testing::Test {
     14  public:
     15   void SetUp() override {
     16     map_ = {
     17         {"key1", 1}, {"key2", 2}, {"key3", 3}, {"key4", 4}, {"key5", 5},
     18     };
     19   }
     20 
     21   void TearDown() override { map_.clear(); }
     22 
     23   std::map<std::string, int> map_;
     24 };
     25 
     26 TEST_F(MapUtilsTest, GetMapKeys) {
     27   std::set<std::string> keys = GetMapKeys(map_);
     28   EXPECT_EQ((std::set<std::string>{"key1", "key2", "key3", "key4", "key5"}),
     29             keys);
     30 }
     31 
     32 TEST_F(MapUtilsTest, GetMapKeysAsVector) {
     33   std::vector<std::string> keys = GetMapKeysAsVector(map_);
     34   EXPECT_EQ((std::vector<std::string>{"key1", "key2", "key3", "key4", "key5"}),
     35             keys);
     36 }
     37 
     38 TEST_F(MapUtilsTest, GetMapValues) {
     39   std::vector<int> values = GetMapValues(map_);
     40   EXPECT_EQ((std::vector<int>{1, 2, 3, 4, 5}), values);
     41 }
     42 
     43 TEST_F(MapUtilsTest, MapToVector) {
     44   std::vector<std::pair<std::string, int>> elements = MapToVector(map_);
     45   std::vector<std::pair<std::string, int>> expected{
     46       {"key1", 1}, {"key2", 2}, {"key3", 3}, {"key4", 4}, {"key5", 5},
     47   };
     48   EXPECT_EQ(expected, elements);
     49 }
     50 
     51 TEST_F(MapUtilsTest, Empty) {
     52   std::map<int, double> empty_map;
     53   EXPECT_TRUE(GetMapKeys(empty_map).empty());
     54   EXPECT_TRUE(GetMapKeysAsVector(empty_map).empty());
     55   EXPECT_TRUE(GetMapValues(empty_map).empty());
     56   EXPECT_TRUE(MapToVector(empty_map).empty());
     57 }
     58 
     59 }  // namespace brillo
     60