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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      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 <limits>
      6 
      7 #include "base/i18n/number_formatting.h"
      8 #include "base/i18n/rtl.h"
      9 #include "base/strings/utf_string_conversions.h"
     10 #include "testing/gtest/include/gtest/gtest.h"
     11 
     12 namespace base {
     13 namespace {
     14 
     15 TEST(NumberFormattingTest, FormatNumber) {
     16   static const struct {
     17     int64 number;
     18     const char* expected_english;
     19     const char* expected_german;
     20   } cases[] = {
     21     {0, "0", "0"},
     22     {1024, "1,024", "1.024"},
     23     {std::numeric_limits<int64>::max(),
     24         "9,223,372,036,854,775,807", "9.223.372.036.854.775.807"},
     25     {std::numeric_limits<int64>::min(),
     26         "-9,223,372,036,854,775,808", "-9.223.372.036.854.775.808"},
     27     {-42, "-42", "-42"},
     28   };
     29 
     30   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) {
     31     i18n::SetICUDefaultLocale("en");
     32     testing::ResetFormatters();
     33     EXPECT_EQ(cases[i].expected_english,
     34               UTF16ToUTF8(FormatNumber(cases[i].number)));
     35     i18n::SetICUDefaultLocale("de");
     36     testing::ResetFormatters();
     37     EXPECT_EQ(cases[i].expected_german,
     38               UTF16ToUTF8(FormatNumber(cases[i].number)));
     39   }
     40 }
     41 
     42 TEST(NumberFormattingTest, FormatDouble) {
     43   static const struct {
     44     double number;
     45     int frac_digits;
     46     const char* expected_english;
     47     const char* expected_german;
     48   } cases[] = {
     49     {0.0, 0, "0", "0"},
     50 #if !defined(OS_ANDROID)
     51     // Bionic can't printf negative zero correctly.
     52     {-0.0, 4, "-0.0000", "-0,0000"},
     53 #endif
     54     {1024.2, 0, "1,024", "1.024"},
     55     {-1024.223, 2, "-1,024.22", "-1.024,22"},
     56     {std::numeric_limits<double>::max(), 6,
     57         "179,769,313,486,232,000,000,000,000,000,000,000,000,000,000,000,000,"
     58         "000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,"
     59         "000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,"
     60         "000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,"
     61         "000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,"
     62         "000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,"
     63         "000.000000",
     64         "179.769.313.486.232.000.000.000.000.000.000.000.000.000.000.000.000."
     65         "000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
     66         "000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
     67         "000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
     68         "000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
     69         "000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
     70         "000,000000"},
     71     {std::numeric_limits<double>::min(), 2, "0.00", "0,00"},
     72     {-42.7, 3, "-42.700", "-42,700"},
     73   };
     74 
     75   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) {
     76     i18n::SetICUDefaultLocale("en");
     77     testing::ResetFormatters();
     78     EXPECT_EQ(cases[i].expected_english,
     79               UTF16ToUTF8(FormatDouble(cases[i].number, cases[i].frac_digits)));
     80     i18n::SetICUDefaultLocale("de");
     81     testing::ResetFormatters();
     82     EXPECT_EQ(cases[i].expected_german,
     83               UTF16ToUTF8(FormatDouble(cases[i].number, cases[i].frac_digits)));
     84   }
     85 }
     86 
     87 }  // namespace
     88 }  // namespace base
     89