Upstream Chrome on iOS source code [5/11].

ios/chrome/browser/ui/file_locations_unittest.mm

+// Copyright 2012 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 "ios/chrome/browser/ui/file_locations.h"
+
+#include "base/mac/foundation_util.h"
+#include "base/strings/sys_string_conversions.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/platform_test.h"
+
+extern std::string GetLocalizedFileName(const std::string& base_name,
+                                        const std::string& locale,
+                                        const std::string& ext);
+
+extern std::string GetIOSLocaleMapping(const std::string& locale);
+
+namespace {
+
+class FileLocationsTest : public PlatformTest {
+ protected:
+  void SetUp() override {
+    // These files must exist for this unit test to pass.
+    termsBaseName_ = "terms";
+    extension_ = "html";
+    enFile_ = "terms_en.html";
+    frFile_ = "terms_fr.html";
+  }
+  std::string termsBaseName_;
+  std::string extension_;
+  std::string enFile_;
+  std::string frFile_;
+};
+
+TEST_F(FileLocationsTest, TestTermsOfServiceUrl) {
+  std::string filename(GetTermsOfServicePath());
+  EXPECT_FALSE(filename.empty());
+}
+
+TEST_F(FileLocationsTest, TestIOSLocaleMapping) {
+  EXPECT_EQ("en-US", GetIOSLocaleMapping("en-US"));
+  EXPECT_EQ("es", GetIOSLocaleMapping("es"));
+  EXPECT_EQ("es-419", GetIOSLocaleMapping("es-MX"));
+  EXPECT_EQ("pt-BR", GetIOSLocaleMapping("pt"));
+  EXPECT_EQ("pt-PT", GetIOSLocaleMapping("pt-PT"));
+  EXPECT_EQ("zh-CN", GetIOSLocaleMapping("zh-Hans"));
+  EXPECT_EQ("zh-TW", GetIOSLocaleMapping("zh-Hant"));
+}
+
+TEST_F(FileLocationsTest, TestFileNameLocaleWithExtension) {
+  EXPECT_EQ(enFile_, GetLocalizedFileName(termsBaseName_, "en", extension_));
+  EXPECT_EQ(frFile_, GetLocalizedFileName(termsBaseName_, "fr", extension_));
+  EXPECT_EQ(frFile_, GetLocalizedFileName(termsBaseName_, "fr-XX", extension_));
+
+  // No ToS for "xx" locale so expect default "en" ToS. Unlikely, but this
+  // test will fail once the ToS for "xx" locale is added.
+  EXPECT_EQ(enFile_, GetLocalizedFileName(termsBaseName_, "xx", extension_));
+}
+
+// Tests that locale/languages available on iOS are mapped to either a
+// translated Chrome Terms of Service or to English.
+TEST_F(FileLocationsTest, TestTermsOfServiceForSupportedLanguages) {
+  // List of available localized terms_*.html files. Note that this list is
+  // hardcoded and needs to be manually maintained as new locales are added
+  // to Chrome. See http://crbug/522638
+  NSSet* localizedTermsHtml =
+      [NSSet setWithObjects:@"ar", @"bg", @"ca", @"cs", @"da", @"de", @"el",
+                            @"en-GB", @"en", @"es-419", @"es", @"fa", @"fi",
+                            @"fr", @"he", @"hi", @"hr", @"hu", @"id", @"it",
+                            @"ja", @"ko", @"lt", @"nb", @"nl", @"pl", @"pt-BR",
+                            @"pt-PT", @"ro", @"ru", @"sk", @"sr", @"sv", @"th",
+                            @"tr", @"uk", @"vi", @"zh-CN", @"zh-TW", nil];
+  for (NSString* locale in [NSLocale availableLocaleIdentifiers]) {
+    NSString* normalizedLocale =
+        [locale stringByReplacingOccurrencesOfString:@"_" withString:@"-"];
+    NSArray* parts = [normalizedLocale componentsSeparatedByString:@"-"];
+    NSString* language = [parts objectAtIndex:0];
+    std::string filename = GetLocalizedFileName(
+        termsBaseName_,
+        GetIOSLocaleMapping(base::SysNSStringToUTF8(normalizedLocale)),
+        extension_);
+    if (filename == enFile_ && ![language isEqualToString:@"en"]) {
+      NSLog(@"OK: Locale %@ using language %@ falls back to use English ToS",
+            locale, language);
+      EXPECT_FALSE([localizedTermsHtml containsObject:language]);
+    }
+  }
+}
+
+}  // namespace