Making structure for ContentSettings and its corresponding strings.

components/content_settings/core/browser/content_settings_utils_unittest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/content_settings/core/browser/content_settings_utils.h"
 
 #include <string>
 
 #include "components/content_settings/core/test/content_settings_test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+namespace {
+
+const char* const kContentSettingNames[] = {
+  "default",
+  "allow",
+  "block",
+  "ask",
+  "session_only",
+  "detect_important_content",
+};
+static_assert(arraysize(kContentSettingNames) == CONTENT_SETTING_NUM_SETTINGS,
+              "kContentSettingNames has an unexpected number of elements");
+
+}  // namespace
+
 TEST(ContentSettingsUtilsTest, ParsePatternString) {
   content_settings::PatternPair pattern_pair;
 
   pattern_pair = content_settings::ParsePatternString(std::string());
   EXPECT_FALSE(pattern_pair.first.IsValid());
   EXPECT_FALSE(pattern_pair.second.IsValid());
 
   pattern_pair = content_settings::ParsePatternString(",");
   EXPECT_FALSE(pattern_pair.first.IsValid());
   EXPECT_FALSE(pattern_pair.second.IsValid());
@@ skipping 15 matching lines @@
   pattern_pair = content_settings::ParsePatternString(
       "http://www.foo.com,http://www.bar.com,");
   EXPECT_FALSE(pattern_pair.first.IsValid());
   EXPECT_FALSE(pattern_pair.second.IsValid());
 
   pattern_pair = content_settings::ParsePatternString(
       "http://www.foo.com,http://www.bar.com,http://www.error.com");
   EXPECT_FALSE(pattern_pair.first.IsValid());
   EXPECT_FALSE(pattern_pair.second.IsValid());
 }
+
+TEST(ContentSettingsUtilsTest, ContentSettingsStringMap) {
+  std::string setting_string =
+      content_settings::ContentSettingToString(CONTENT_SETTING_NUM_SETTINGS);
+  EXPECT_TRUE(setting_string.empty());
+
+  for (size_t i = 0; i < arraysize(kContentSettingNames); ++i) {
+    ContentSetting setting = static_cast<ContentSetting>(i);
+    setting_string = content_settings::ContentSettingToString(setting);
+    EXPECT_EQ(kContentSettingNames[i], setting_string);
+
+    ContentSetting converted_setting;
+    if (i == 0) {
+      EXPECT_FALSE(content_settings::ContentSettingFromString(
+          kContentSettingNames[i], &converted_setting));
+    } else {
+      EXPECT_TRUE(content_settings::ContentSettingFromString(
+          kContentSettingNames[i], &converted_setting));
+    }
+    EXPECT_EQ(setting, converted_setting);
+  }
+}