strutil_unittest.cc revision fbaaef999ba563838ebd00874ed8a1c01fbf286d 
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30
31// Author: kenton@google.com (Kenton Varda)
32
33#include <google/protobuf/stubs/strutil.h>
34
35#include <google/protobuf/testing/googletest.h>
36#include <gtest/gtest.h>
37#include <locale.h>
38
39namespace google {
40namespace protobuf {
41namespace {
42
43// TODO(kenton):  Copy strutil tests from google3?
44
45TEST(StringUtilityTest, ImmuneToLocales) {
46  // Remember the old locale.
47  char* old_locale_cstr = setlocale(LC_NUMERIC, NULL);
48  ASSERT_TRUE(old_locale_cstr != NULL);
49  string old_locale = old_locale_cstr;
50
51  // Set the locale to "C".
52  ASSERT_TRUE(setlocale(LC_NUMERIC, "C") != NULL);
53
54  EXPECT_EQ(1.5, NoLocaleStrtod("1.5", NULL));
55  EXPECT_EQ("1.5", SimpleDtoa(1.5));
56  EXPECT_EQ("1.5", SimpleFtoa(1.5));
57
58  // Verify that the endptr is set correctly even if not all text was parsed.
59  const char* text = "1.5f";
60  char* endptr;
61  EXPECT_EQ(1.5, NoLocaleStrtod(text, &endptr));
62  EXPECT_EQ(3, endptr - text);
63
64  if (setlocale(LC_NUMERIC, "es_ES") == NULL &&
65      setlocale(LC_NUMERIC, "es_ES.utf8") == NULL) {
66    // Some systems may not have the desired locale available.
67    GOOGLE_LOG(WARNING)
68      << "Couldn't set locale to es_ES.  Skipping this test.";
69  } else {
70    EXPECT_EQ(1.5, NoLocaleStrtod("1.5", NULL));
71    EXPECT_EQ("1.5", SimpleDtoa(1.5));
72    EXPECT_EQ("1.5", SimpleFtoa(1.5));
73    EXPECT_EQ(1.5, NoLocaleStrtod(text, &endptr));
74    EXPECT_EQ(3, endptr - text);
75  }
76
77  // Return to original locale.
78  setlocale(LC_NUMERIC, old_locale.c_str());
79}
80
81}  // anonymous namespace
82}  // namespace protobuf
83}  // namespace google
84