Restore locales after tests

base/i18n/number_formatting_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 <limits>
 
 #include "base/i18n/number_formatting.h"
 #include "base/i18n/rtl.h"
 #include "base/strings/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/icu/source/i18n/unicode/usearch.h"
 
 namespace base {
 namespace {
 
+class ScopedSetICUDefaultLocale {

[Mark Mentovai, 2015/08/18 13:18:14]

You shouldn’t have to write this class in every file that needs it. Put it
someplace common and let the various tests depend on it. icu_test_util.{cc,h}
sounds like it’d be right.

+  std::string default_locale;
+
+ public:
+  ScopedSetICUDefaultLocale(std::string locale);
+  ~ScopedSetICUDefaultLocale();
+};
+
+ScopedSetICUDefaultLocale::ScopedSetICUDefaultLocale(std::string locale)
+    : default_locale(locale) {}
+
+ScopedSetICUDefaultLocale::~ScopedSetICUDefaultLocale() {
+  i18n::SetICUDefaultLocale(default_locale.data());
+}
+
 TEST(NumberFormattingTest, FormatNumber) {
   static const struct {
     int64 number;
     const char* expected_english;
     const char* expected_german;
   } cases[] = {
     {0, "0", "0"},
     {1024, "1,024", "1.024"},
     {std::numeric_limits<int64>::max(),
         "9,223,372,036,854,775,807", "9.223.372.036.854.775.807"},
     {std::numeric_limits<int64>::min(),
         "-9,223,372,036,854,775,808", "-9.223.372.036.854.775.808"},
     {-42, "-42", "-42"},
   };
 
+  ScopedSetICUDefaultLocale restore_object(uloc_getDefault());
+
   for (size_t i = 0; i < arraysize(cases); ++i) {
     i18n::SetICUDefaultLocale("en");
     testing::ResetFormatters();
     EXPECT_EQ(cases[i].expected_english,
               UTF16ToUTF8(FormatNumber(cases[i].number)));
     i18n::SetICUDefaultLocale("de");
     testing::ResetFormatters();
     EXPECT_EQ(cases[i].expected_german,
               UTF16ToUTF8(FormatNumber(cases[i].number)));
   }
@@ skipping 25 matching lines @@
         "000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
         "000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
         "000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
         "000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
         "000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
         "000,000000"},
     {std::numeric_limits<double>::min(), 2, "0.00", "0,00"},
     {-42.7, 3, "-42.700", "-42,700"},
   };
 
+  ScopedSetICUDefaultLocale restore_object(uloc_getDefault());
   for (size_t i = 0; i < arraysize(cases); ++i) {
     i18n::SetICUDefaultLocale("en");
     testing::ResetFormatters();
     EXPECT_EQ(cases[i].expected_english,
               UTF16ToUTF8(FormatDouble(cases[i].number, cases[i].frac_digits)));
     i18n::SetICUDefaultLocale("de");
     testing::ResetFormatters();
     EXPECT_EQ(cases[i].expected_german,
               UTF16ToUTF8(FormatDouble(cases[i].number, cases[i].frac_digits)));
   }
 }
 
 }  // namespace
 }  // namespace base