1 // Copyright 2011 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 <stddef.h>
6 #include <stdint.h>
7
8 #include <limits>
9
10 #include "base/i18n/number_formatting.h"
11 #include "base/i18n/rtl.h"
12 #include "base/strings/utf_string_conversions.h"
13 #include "base/test/icu_test_util.h"
14 #include "build/build_config.h"
15 #include "testing/gtest/include/gtest/gtest.h"
16 #include "third_party/icu/source/i18n/unicode/usearch.h"
17
18 namespace base {
19 namespace {
20
TEST(NumberFormattingTest,FormatNumber)21 TEST(NumberFormattingTest, FormatNumber) {
22 static const struct {
23 int64_t number;
24 const char* expected_english;
25 const char* expected_german;
26 } cases[] = {
27 {0, "0", "0"},
28 {1024, "1,024", "1.024"},
29 {std::numeric_limits<int64_t>::max(),
30 "9,223,372,036,854,775,807", "9.223.372.036.854.775.807"},
31 {std::numeric_limits<int64_t>::min(),
32 "-9,223,372,036,854,775,808", "-9.223.372.036.854.775.808"},
33 {-42, "-42", "-42"},
34 };
35
36 test::ScopedRestoreICUDefaultLocale restore_locale;
37
38 for (const auto& i : cases) {
39 i18n::SetICUDefaultLocale("en");
40 ResetFormattersForTesting();
41 EXPECT_EQ(i.expected_english, UTF16ToUTF8(FormatNumber(i.number)));
42 i18n::SetICUDefaultLocale("de");
43 ResetFormattersForTesting();
44 EXPECT_EQ(i.expected_german, UTF16ToUTF8(FormatNumber(i.number)));
45 }
46 }
47
TEST(NumberFormattingTest,FormatDouble)48 TEST(NumberFormattingTest, FormatDouble) {
49 static const struct {
50 double number;
51 int frac_digits;
52 const char* expected_english;
53 const char* expected_german;
54 } cases[] = {
55 {0.0, 0, "0", "0"},
56 #if !BUILDFLAG(IS_ANDROID)
57 // Bionic can't printf negative zero correctly.
58 {-0.0, 4, "-0.0000", "-0,0000"},
59 #endif
60 {1024.2, 0, "1,024", "1.024"},
61 {-1024.223, 2, "-1,024.22", "-1.024,22"},
62 {std::numeric_limits<double>::max(), 6,
63 "179,769,313,486,231,570,000,000,000,000,000,000,000,000,000,000,000,"
64 "000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,"
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 "000.000000",
70 "179.769.313.486.231.570.000.000.000.000.000.000.000.000.000.000.000."
71 "000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
72 "000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
73 "000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
74 "000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
75 "000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
76 "000,000000"},
77 {std::numeric_limits<double>::min(), 2, "0.00", "0,00"},
78 {-42.7, 3, "-42.700", "-42,700"},
79 };
80
81 test::ScopedRestoreICUDefaultLocale restore_locale;
82 for (const auto& i : cases) {
83 i18n::SetICUDefaultLocale("en");
84 ResetFormattersForTesting();
85 EXPECT_EQ(i.expected_english,
86 UTF16ToUTF8(FormatDouble(i.number, i.frac_digits)));
87 i18n::SetICUDefaultLocale("de");
88 ResetFormattersForTesting();
89 EXPECT_EQ(i.expected_german,
90 UTF16ToUTF8(FormatDouble(i.number, i.frac_digits)));
91 }
92 }
93
TEST(NumberFormattingTest,FormatPercent)94 TEST(NumberFormattingTest, FormatPercent) {
95 static const struct {
96 int64_t number;
97 const char* expected_english;
98 const char* expected_german; // Note: Space before % isn't \x20.
99 // Note: Eastern Arabic-Indic digits (U+06Fx) for Persian and
100 // Arabic-Indic digits (U+066x) for Arabic in Egypt(ar-EG). In Arabic (ar),
101 // uses European digits (Google-patch).
102 // See https://unicode.org/cldr/trac/ticket/9040 for details.
103 // See also https://unicode.org/cldr/trac/ticket/10176 .
104 // For now, take what CLDR 32 has (percent sign to the right of
105 // a number in Persian).
106 const char* expected_persian;
107 const char* expected_arabic;
108 const char* expected_arabic_egypt;
109 } cases[] = {
110 {0, "0%", "0\u00a0%", "\u06f0\u066a", "0\u200e%\u200e",
111 "\u0660\u066a\u061c"},
112 {42, "42%", "42\u00a0%", "\u06f4\u06f2\u066a", "42\u200e%\u200e",
113 "\u0664\u0662\u066a\u061c"},
114 {1024, "1,024%", "1.024\u00a0%", "\u06f1\u066c\u06f0\u06f2\u06f4\u066a",
115 "1,024\u200e%\u200e", "\u0661\u066c\u0660\u0662\u0664\u066a\u061c"},
116 };
117
118 test::ScopedRestoreICUDefaultLocale restore_locale;
119 for (const auto& i : cases) {
120 i18n::SetICUDefaultLocale("en");
121 EXPECT_EQ(ASCIIToUTF16(i.expected_english), FormatPercent(i.number));
122 i18n::SetICUDefaultLocale("de");
123 EXPECT_EQ(UTF8ToUTF16(i.expected_german), FormatPercent(i.number));
124 i18n::SetICUDefaultLocale("fa");
125 EXPECT_EQ(UTF8ToUTF16(i.expected_persian), FormatPercent(i.number));
126 i18n::SetICUDefaultLocale("ar");
127 EXPECT_EQ(UTF8ToUTF16(i.expected_arabic), FormatPercent(i.number));
128 i18n::SetICUDefaultLocale("ar-EG");
129 EXPECT_EQ(UTF8ToUTF16(i.expected_arabic_egypt), FormatPercent(i.number));
130 }
131 }
132
133 } // namespace
134 } // namespace base
135