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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include <gtest/gtest.h>
     18 
     19 #include <errno.h>
     20 #include <limits.h>
     21 #include <locale.h>
     22 
     23 TEST(locale, localeconv) {
     24   EXPECT_STREQ(".", localeconv()->decimal_point);
     25   EXPECT_STREQ("", localeconv()->thousands_sep);
     26   EXPECT_STREQ("", localeconv()->grouping);
     27   EXPECT_STREQ("", localeconv()->int_curr_symbol);
     28   EXPECT_STREQ("", localeconv()->currency_symbol);
     29   EXPECT_STREQ("", localeconv()->mon_decimal_point);
     30   EXPECT_STREQ("", localeconv()->mon_thousands_sep);
     31   EXPECT_STREQ("", localeconv()->mon_grouping);
     32   EXPECT_STREQ("", localeconv()->positive_sign);
     33   EXPECT_STREQ("", localeconv()->negative_sign);
     34   EXPECT_EQ(CHAR_MAX, localeconv()->int_frac_digits);
     35   EXPECT_EQ(CHAR_MAX, localeconv()->frac_digits);
     36   EXPECT_EQ(CHAR_MAX, localeconv()->p_cs_precedes);
     37   EXPECT_EQ(CHAR_MAX, localeconv()->p_sep_by_space);
     38   EXPECT_EQ(CHAR_MAX, localeconv()->n_cs_precedes);
     39   EXPECT_EQ(CHAR_MAX, localeconv()->n_sep_by_space);
     40   EXPECT_EQ(CHAR_MAX, localeconv()->p_sign_posn);
     41   EXPECT_EQ(CHAR_MAX, localeconv()->n_sign_posn);
     42   EXPECT_EQ(CHAR_MAX, localeconv()->int_p_cs_precedes);
     43   EXPECT_EQ(CHAR_MAX, localeconv()->int_p_sep_by_space);
     44   EXPECT_EQ(CHAR_MAX, localeconv()->int_n_cs_precedes);
     45   EXPECT_EQ(CHAR_MAX, localeconv()->int_n_sep_by_space);
     46   EXPECT_EQ(CHAR_MAX, localeconv()->int_p_sign_posn);
     47   EXPECT_EQ(CHAR_MAX, localeconv()->int_n_sign_posn);
     48 }
     49 
     50 TEST(locale, setlocale) {
     51   EXPECT_STREQ("C.UTF-8", setlocale(LC_ALL, NULL));
     52   EXPECT_STREQ("C.UTF-8", setlocale(LC_CTYPE, NULL));
     53 
     54   errno = 0;
     55   EXPECT_EQ(NULL, setlocale(-1, NULL));
     56   EXPECT_EQ(EINVAL, errno);
     57   errno = 0;
     58   EXPECT_EQ(NULL, setlocale(13, NULL));
     59   EXPECT_EQ(EINVAL, errno);
     60 
     61 #if defined(__BIONIC__)
     62   // The "" locale is implementation-defined. For bionic, it's the C.UTF-8 locale, which is
     63   // pretty much all we support anyway.
     64   // glibc will give us something like "en_US.UTF-8", depending on the user's configuration.
     65   EXPECT_STREQ("C.UTF-8", setlocale(LC_ALL, ""));
     66 #endif
     67   EXPECT_STREQ("C", setlocale(LC_ALL, "C"));
     68   EXPECT_STREQ("C", setlocale(LC_ALL, "POSIX"));
     69 
     70   errno = 0;
     71   EXPECT_EQ(NULL, setlocale(LC_ALL, "this-is-not-a-locale"));
     72   EXPECT_EQ(ENOENT, errno); // POSIX specified, not an implementation detail!
     73 }
     74 
     75 TEST(locale, newlocale_invalid_category_mask) {
     76   errno = 0;
     77   EXPECT_EQ(0, newlocale(1 << 20, "C", 0));
     78   EXPECT_EQ(EINVAL, errno);
     79 }
     80 
     81 TEST(locale, newlocale_NULL_locale_name) {
     82   errno = 0;
     83   EXPECT_EQ(0, newlocale(LC_ALL, NULL, 0));
     84   EXPECT_EQ(EINVAL, errno);
     85 }
     86 
     87 TEST(locale, newlocale_bad_locale_name) {
     88   errno = 0;
     89   EXPECT_EQ(0, newlocale(LC_ALL, "this-is-not-a-locale", 0));
     90   EXPECT_EQ(ENOENT, errno); // POSIX specified, not an implementation detail!
     91 }
     92 
     93 TEST(locale, newlocale) {
     94   locale_t l = newlocale(LC_ALL, "C", 0);
     95   ASSERT_TRUE(l != NULL);
     96   freelocale(l);
     97 }
     98 
     99 TEST(locale, duplocale) {
    100   locale_t cloned_global = duplocale(LC_GLOBAL_LOCALE);
    101   ASSERT_TRUE(cloned_global != NULL);
    102   freelocale(cloned_global);
    103 }
    104 
    105 TEST(locale, uselocale) {
    106   locale_t original = uselocale(NULL);
    107   EXPECT_FALSE(original == 0);
    108   EXPECT_EQ(LC_GLOBAL_LOCALE, original);
    109 
    110   locale_t n = newlocale(LC_ALL, "C", 0);
    111   EXPECT_FALSE(n == 0);
    112   EXPECT_FALSE(n == original);
    113 
    114   locale_t old = uselocale(n);
    115   EXPECT_TRUE(old == original);
    116 
    117   EXPECT_EQ(n, uselocale(NULL));
    118 }
    119 
    120 TEST(locale, mb_cur_max) {
    121   // We can't reliably test the behavior with setlocale(3) or the behavior for
    122   // initial program conditions because (unless we're the only test that was
    123   // run), another test has almost certainly called uselocale(3) in this thread.
    124   // See b/16685652.
    125   locale_t cloc = newlocale(LC_ALL, "C", 0);
    126   locale_t cloc_utf8 = newlocale(LC_ALL, "C.UTF-8", 0);
    127 
    128   locale_t old_locale = uselocale(cloc);
    129   ASSERT_EQ(1U, MB_CUR_MAX);
    130   uselocale(cloc_utf8);
    131   ASSERT_EQ(4U, MB_CUR_MAX);
    132 
    133   uselocale(old_locale);
    134   freelocale(cloc);
    135   freelocale(cloc_utf8);
    136 }
    137