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      1 // Copyright 2015 The Android Open Source Project
      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 #include <brillo/value_conversion.h>
     16 
     17 #include <algorithm>
     18 #include <limits>
     19 #include <memory>
     20 #include <string>
     21 #include <vector>
     22 
     23 #include <base/json/json_reader.h>
     24 #include <base/json/json_writer.h>
     25 #include <gtest/gtest.h>
     26 
     27 namespace brillo {
     28 
     29 namespace {
     30 
     31 std::unique_ptr<base::Value> ParseValue(std::string json) {
     32   std::replace(json.begin(), json.end(), '\'', '"');
     33   std::string message;
     34   auto value = base::JSONReader::ReadAndReturnError(json, base::JSON_PARSE_RFC,
     35                                                     nullptr, &message);
     36   CHECK(value) << "Failed to load JSON: " << message << ", " << json;
     37   return value;
     38 }
     39 
     40 inline bool IsEqualValue(const base::Value& val1, const base::Value& val2) {
     41   return val1.Equals(&val2);
     42 }
     43 
     44 #define EXPECT_JSON_EQ(expected, actual) \
     45   EXPECT_PRED2(IsEqualValue, *ParseValue(expected), actual)
     46 
     47 }  // namespace
     48 
     49 TEST(ValueConversionTest, FromValueInt) {
     50   int actual;
     51   EXPECT_TRUE(FromValue(*ParseValue("123"), &actual));
     52   EXPECT_EQ(123, actual);
     53 
     54   EXPECT_TRUE(FromValue(*ParseValue("-123"), &actual));
     55   EXPECT_EQ(-123, actual);
     56 
     57   EXPECT_FALSE(FromValue(*ParseValue("true"), &actual));
     58 }
     59 
     60 TEST(ValueConversionTest, FromValueBool) {
     61   bool actual;
     62   EXPECT_TRUE(FromValue(*ParseValue("false"), &actual));
     63   EXPECT_FALSE(actual);
     64 
     65   EXPECT_TRUE(FromValue(*ParseValue("true"), &actual));
     66   EXPECT_TRUE(actual);
     67 
     68   EXPECT_FALSE(FromValue(*ParseValue("0"), &actual));
     69   EXPECT_FALSE(FromValue(*ParseValue("1"), &actual));
     70 }
     71 
     72 TEST(ValueConversionTest, FromValueDouble) {
     73   double actual;
     74   EXPECT_TRUE(FromValue(*ParseValue("12.5"), &actual));
     75   EXPECT_DOUBLE_EQ(12.5, actual);
     76 
     77   EXPECT_TRUE(FromValue(*ParseValue("-0.1"), &actual));
     78   EXPECT_DOUBLE_EQ(-0.1, actual);
     79 
     80   EXPECT_TRUE(FromValue(*ParseValue("17"), &actual));
     81   EXPECT_DOUBLE_EQ(17.0, actual);
     82 
     83   EXPECT_FALSE(FromValue(*ParseValue("'1.0'"), &actual));
     84 }
     85 
     86 TEST(ValueConversionTest, FromValueString) {
     87   std::string actual;
     88   EXPECT_TRUE(FromValue(*ParseValue("'foo'"), &actual));
     89   EXPECT_EQ("foo", actual);
     90 
     91   EXPECT_TRUE(FromValue(*ParseValue("'bar'"), &actual));
     92   EXPECT_EQ("bar", actual);
     93 
     94   EXPECT_TRUE(FromValue(*ParseValue("''"), &actual));
     95   EXPECT_TRUE(actual.empty());
     96 
     97   EXPECT_FALSE(FromValue(*ParseValue("1"), &actual));
     98 }
     99 
    100 TEST(ValueConversionTest, FromValueListValue) {
    101   const base::ListValue* list = nullptr;
    102   auto in_value = ParseValue("[1, 2, 'foo']");
    103   EXPECT_TRUE(FromValue(*in_value, &list));
    104   EXPECT_JSON_EQ("[1, 2, 'foo']", *list);
    105 }
    106 
    107 TEST(ValueConversionTest, FromValueDictValue) {
    108   const base::DictionaryValue* dict = nullptr;
    109   auto in_value = ParseValue("{'foo':'bar','baz': 1}");
    110   EXPECT_TRUE(FromValue(*in_value, &dict));
    111   EXPECT_JSON_EQ("{'foo':'bar','baz': 1}", *dict);
    112 }
    113 
    114 TEST(ValueConversionTest, FromValueListValueUniquePtr) {
    115   std::unique_ptr<base::ListValue> list;
    116   EXPECT_TRUE(FromValue(*ParseValue("[1, 2, 'bar']"), &list));
    117   EXPECT_JSON_EQ("[1, 2, 'bar']", *list);
    118 }
    119 
    120 TEST(ValueConversionTest, FromValueDictValueUniquePtr) {
    121   std::unique_ptr<base::DictionaryValue> dict;
    122   EXPECT_TRUE(FromValue(*ParseValue("{'foo':'bar','baz': 1}"), &dict));
    123   EXPECT_JSON_EQ("{'foo':'bar','baz': 1}", *dict);
    124 }
    125 
    126 TEST(ValueConversionTest, FromValueVectorOfInt) {
    127   std::vector<int> actual;
    128   EXPECT_TRUE(FromValue(*ParseValue("[1, 2, 3, 4]"), &actual));
    129   EXPECT_EQ((std::vector<int>{1, 2, 3, 4}), actual);
    130 
    131   EXPECT_TRUE(FromValue(*ParseValue("[]"), &actual));
    132   EXPECT_TRUE(actual.empty());
    133 
    134   EXPECT_FALSE(FromValue(*ParseValue("[1, 2, 3, '4']"), &actual));
    135 }
    136 
    137 TEST(ValueConversionTest, FromValueVectorOfBool) {
    138   std::vector<bool> actual;
    139   EXPECT_TRUE(FromValue(*ParseValue("[true, true, false]"), &actual));
    140   EXPECT_EQ((std::vector<bool>{true, true, false}), actual);
    141 
    142   EXPECT_TRUE(FromValue(*ParseValue("[]"), &actual));
    143   EXPECT_TRUE(actual.empty());
    144 
    145   EXPECT_FALSE(FromValue(*ParseValue("[true, 0]"), &actual));
    146 }
    147 
    148 TEST(ValueConversionTest, FromValueVectorOfDouble) {
    149   std::vector<double> actual;
    150   EXPECT_TRUE(FromValue(*ParseValue("[1, 2.0, 6.5, -11.2]"), &actual));
    151   EXPECT_EQ((std::vector<double>{1.0, 2.0, 6.5, -11.2}), actual);
    152 
    153   EXPECT_TRUE(FromValue(*ParseValue("[]"), &actual));
    154   EXPECT_TRUE(actual.empty());
    155 
    156   EXPECT_FALSE(FromValue(*ParseValue("['s']"), &actual));
    157 }
    158 
    159 TEST(ValueConversionTest, FromValueVectorOfString) {
    160   std::vector<std::string> actual;
    161   EXPECT_TRUE(FromValue(*ParseValue("['', 'foo', 'bar']"), &actual));
    162   EXPECT_EQ((std::vector<std::string>{"", "foo", "bar"}), actual);
    163 
    164   EXPECT_TRUE(FromValue(*ParseValue("[]"), &actual));
    165   EXPECT_TRUE(actual.empty());
    166 
    167   EXPECT_FALSE(FromValue(*ParseValue("[100]"), &actual));
    168 }
    169 
    170 TEST(ValueConversionTest, FromValueVectorOfVectors) {
    171   std::vector<std::vector<int>> actual;
    172   EXPECT_TRUE(FromValue(*ParseValue("[[1,2], [], [3]]"), &actual));
    173   EXPECT_EQ((std::vector<std::vector<int>>{{1,2}, {}, {3}}), actual);
    174 
    175   EXPECT_TRUE(FromValue(*ParseValue("[]"), &actual));
    176   EXPECT_TRUE(actual.empty());
    177 
    178   EXPECT_FALSE(FromValue(*ParseValue("[100]"), &actual));
    179 }
    180 
    181 TEST(ValueConversionTest, FromValueMap) {
    182   std::map<std::string, int> actual;
    183   EXPECT_TRUE(FromValue(*ParseValue("{'foo':1, 'bar':2, 'baz':3}"), &actual));
    184   EXPECT_EQ((std::map<std::string, int>{{"foo", 1}, {"bar", 2}, {"baz", 3}}),
    185             actual);
    186 
    187   EXPECT_TRUE(FromValue(*ParseValue("{}"), &actual));
    188   EXPECT_TRUE(actual.empty());
    189 
    190   EXPECT_FALSE(FromValue(*ParseValue("{'foo':1, 'bar':'2'}"), &actual));
    191 }
    192 
    193 TEST(ValueConversionTest, FromValueMapOfVectors) {
    194   std::map<std::string, std::vector<int>> actual;
    195   EXPECT_TRUE(FromValue(*ParseValue("{'foo':[1,2], 'bar':[]}"), &actual));
    196   std::map<std::string, std::vector<int>> expected{
    197       {"foo", {1, 2}}, {"bar", {}}};
    198   EXPECT_EQ(expected, actual);
    199 
    200   EXPECT_TRUE(FromValue(*ParseValue("{}"), &actual));
    201   EXPECT_TRUE(actual.empty());
    202 
    203   EXPECT_FALSE(FromValue(*ParseValue("{'foo':[1], 'bar':[2,'3']}"), &actual));
    204 }
    205 
    206 TEST(ValueConversionTest, FromValueVectorOfMaps) {
    207   std::vector<std::map<std::string, int>> actual;
    208   EXPECT_TRUE(FromValue(*ParseValue("[{'foo':1,'bar':2},{'baz':3}]"), &actual));
    209   std::vector<std::map<std::string, int>> expected{
    210       {{"foo", 1}, {"bar", 2}}, {{"baz", 3}}};
    211   EXPECT_EQ(expected, actual);
    212 
    213   EXPECT_TRUE(FromValue(*ParseValue("[]"), &actual));
    214   EXPECT_TRUE(actual.empty());
    215 
    216   EXPECT_FALSE(FromValue(*ParseValue("[{'foo':1}, 'bar']"), &actual));
    217 }
    218 
    219 TEST(ValueConversionTest, FromValueVectorOfLists) {
    220   std::vector<std::unique_ptr<base::ListValue>> actual;
    221   EXPECT_TRUE(FromValue(*ParseValue("[['foo',1],['bar',2],[true]]"), &actual));
    222   ASSERT_EQ(3, actual.size());
    223   EXPECT_JSON_EQ("['foo', 1]", *actual[0]);
    224   EXPECT_JSON_EQ("['bar', 2]", *actual[1]);
    225   EXPECT_JSON_EQ("[true]", *actual[2]);
    226 }
    227 
    228 TEST(ValueConversionTest, FromValueVectorOfDicts) {
    229   std::vector<std::unique_ptr<base::DictionaryValue>> actual;
    230   EXPECT_TRUE(FromValue(*ParseValue("[{'foo': 1}, {'bar': 2}]"), &actual));
    231   ASSERT_EQ(2, actual.size());
    232   EXPECT_JSON_EQ("{'foo': 1}", *actual[0]);
    233   EXPECT_JSON_EQ("{'bar': 2}", *actual[1]);
    234 }
    235 
    236 TEST(ValueConversionTest, ToValueScalar) {
    237   EXPECT_JSON_EQ("1234", *ToValue(1234));
    238   EXPECT_JSON_EQ("true", *ToValue(true));
    239   EXPECT_JSON_EQ("false", *ToValue(false));
    240   EXPECT_JSON_EQ("12.5", *ToValue(12.5));
    241   EXPECT_JSON_EQ("'foobar'", *ToValue("foobar"));
    242 }
    243 
    244 TEST(ValueConversionTest, ToValueVector) {
    245   EXPECT_JSON_EQ("[1, 2, 3]", *ToValue(std::vector<int>{1, 2, 3}));
    246   EXPECT_JSON_EQ("[]", *ToValue(std::vector<int>{}));
    247   EXPECT_JSON_EQ("[true, false]", *ToValue(std::vector<bool>{true, false}));
    248   EXPECT_JSON_EQ("['foo', 'bar']",
    249                  *ToValue(std::vector<std::string>{"foo", "bar"}));
    250   EXPECT_JSON_EQ("[[1,2],[3]]",
    251                  *ToValue(std::vector<std::vector<int>>{{1, 2}, {3}}));
    252 }
    253 
    254 TEST(ValueConversionTest, ToValueMap) {
    255   EXPECT_JSON_EQ("{'foo': 1, 'bar': 2}",
    256                  *ToValue(std::map<std::string, int>{{"foo", 1}, {"bar", 2}}));
    257   EXPECT_JSON_EQ("{}", *ToValue(std::map<std::string, int>{}));
    258   EXPECT_JSON_EQ("{'foo': true}",
    259                  *ToValue(std::map<std::string, bool>{{"foo", true}}));
    260   EXPECT_JSON_EQ("{'foo': 1.1, 'bar': 2.2}",
    261                  *ToValue(std::map<std::string, double>{{"foo", 1.1},
    262                                                         {"bar", 2.2}}));
    263 }
    264 
    265 }  // namespace brillo
    266