components/fuchsia_component_support/config_reader_unittest.cc

   1 // Copyright 2021 The Chromium Authors
   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 "components/fuchsia_component_support/config_reader.h"
   6
   7 #include <string>
   8
   9 #include "base/files/file_util.h"
  10 #include "base/files/scoped_temp_dir.h"
  11 #include "testing/gtest/include/gtest/gtest.h"
  12
  13 namespace fuchsia_component_support {
  14
  15 TEST(ConfigReaderTest, NoConfigData) {
  16   base::ScopedTempDir temp_dir;
  17   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
  18
  19   auto config = LoadConfigFromDirForTest(temp_dir.GetPath());
  20   EXPECT_FALSE(config.has_value());
  21 }
  22
  23 TEST(ConfigReaderTest, SingleConfigJson) {
  24   base::ScopedTempDir temp_dir;
  25   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
  26   ASSERT_TRUE(base::WriteFile(temp_dir.GetPath().Append("config.json"),
  27                               "{ \"name\": \"value\" }"));
  28
  29   auto config = LoadConfigFromDirForTest(temp_dir.GetPath());
  30   ASSERT_TRUE(config.has_value());
  31
  32   EXPECT_EQ(config->size(), 1u);
  33   const std::string* value = config->FindString("name");
  34   ASSERT_TRUE(value);
  35   EXPECT_EQ(*value, "value");
  36 }
  37
  38 TEST(ConfigReaderTest, MultipleConfigJson) {
  39   base::ScopedTempDir temp_dir;
  40   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
  41   ASSERT_TRUE(base::WriteFile(temp_dir.GetPath().Append("foo.json"),
  42                               "{ \"name1\": \"value?\" }"));
  43   ASSERT_TRUE(base::WriteFile(temp_dir.GetPath().Append("bar.json"),
  44                               "{ \"name2\": \"value!\" }"));
  45   ASSERT_TRUE(base::WriteFile(temp_dir.GetPath().Append("wibble.json"),
  46                               "{ \"name3\": \"value...\" }"));
  47
  48   auto config = LoadConfigFromDirForTest(temp_dir.GetPath());
  49   ASSERT_TRUE(config.has_value());
  50
  51   EXPECT_EQ(config->size(), 3u);
  52
  53   std::string* value = config->FindString("name1");
  54   ASSERT_TRUE(value);
  55   EXPECT_EQ(*value, "value?");
  56
  57   value = config->FindString("name2");
  58   ASSERT_TRUE(value);
  59   EXPECT_EQ(*value, "value!");
  60
  61   value = config->FindString("name3");
  62   ASSERT_TRUE(value);
  63   EXPECT_EQ(*value, "value...");
  64 }
  65
  66 TEST(ConfigReaderTest, OneOfTheseConfigsIsNotValidLikeTheOthers) {
  67   base::ScopedTempDir temp_dir;
  68   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
  69
  70   // Provide some valid config JSONs.
  71   ASSERT_TRUE(base::WriteFile(temp_dir.GetPath().Append("foo.json"),
  72                               "{ \"name1\": \"value?\" }"));
  73   ASSERT_TRUE(base::WriteFile(temp_dir.GetPath().Append("wibble.json"),
  74                               "{ \"name2\": \"value...\" }"));
  75
  76   // Provide an invalid one, which should cause a CHECK failure.
  77   ASSERT_TRUE(base::WriteFile(temp_dir.GetPath().Append("not_valid.json"),
  78                               "{ \"name3\"= }"));
  79
  80   EXPECT_DEATH({ LoadConfigFromDirForTest(temp_dir.GetPath()); }, "");
  81 }
  82
  83 TEST(ConfigReaderTest, MultipleClashingConfigJson) {
  84   base::ScopedTempDir temp_dir;
  85   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
  86   ASSERT_TRUE(base::WriteFile(temp_dir.GetPath().Append("foo.json"),
  87                               "{ \"name\": \"value?\" }"));
  88   ASSERT_TRUE(base::WriteFile(temp_dir.GetPath().Append("bar.json"),
  89                               "{ \"name\": \"value!\" }"));
  90   ASSERT_TRUE(base::WriteFile(temp_dir.GetPath().Append("wibble.json"),
  91                               "{ \"name\": \"value...\" }"));
  92
  93   EXPECT_DEATH({ LoadConfigFromDirForTest(temp_dir.GetPath()); }, "");
  94 }
  95
  96 }  // namespace fuchsia_component_support