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      1 /*
      2  * Copyright (C) 2012 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 #if defined(__BIONIC__)
     20 #include "../libc/bionic/libc_logging.cpp"
     21 extern int __libc_format_buffer(char* buffer, size_t buffer_size, const char* format, ...);
     22 #endif // __BIONIC__
     23 
     24 TEST(libc_logging, smoke) {
     25 #if defined(__BIONIC__)
     26   char buf[BUFSIZ];
     27 
     28   __libc_format_buffer(buf, sizeof(buf), "a");
     29   EXPECT_STREQ("a", buf);
     30 
     31   __libc_format_buffer(buf, sizeof(buf), "%%");
     32   EXPECT_STREQ("%", buf);
     33 
     34   __libc_format_buffer(buf, sizeof(buf), "01234");
     35   EXPECT_STREQ("01234", buf);
     36 
     37   __libc_format_buffer(buf, sizeof(buf), "a%sb", "01234");
     38   EXPECT_STREQ("a01234b", buf);
     39 
     40   char* s = NULL;
     41   __libc_format_buffer(buf, sizeof(buf), "a%sb", s);
     42   EXPECT_STREQ("a(null)b", buf);
     43 
     44   __libc_format_buffer(buf, sizeof(buf), "aa%scc", "bb");
     45   EXPECT_STREQ("aabbcc", buf);
     46 
     47   __libc_format_buffer(buf, sizeof(buf), "a%cc", 'b');
     48   EXPECT_STREQ("abc", buf);
     49 
     50   __libc_format_buffer(buf, sizeof(buf), "a%db", 1234);
     51   EXPECT_STREQ("a1234b", buf);
     52 
     53   __libc_format_buffer(buf, sizeof(buf), "a%db", -8123);
     54   EXPECT_STREQ("a-8123b", buf);
     55 
     56   __libc_format_buffer(buf, sizeof(buf), "a%hdb", static_cast<short>(0x7fff0010));
     57   EXPECT_STREQ("a16b", buf);
     58 
     59   __libc_format_buffer(buf, sizeof(buf), "a%hhdb", static_cast<char>(0x7fffff10));
     60   EXPECT_STREQ("a16b", buf);
     61 
     62   __libc_format_buffer(buf, sizeof(buf), "a%lldb", 0x1000000000LL);
     63   EXPECT_STREQ("a68719476736b", buf);
     64 
     65   __libc_format_buffer(buf, sizeof(buf), "a%ldb", 70000L);
     66   EXPECT_STREQ("a70000b", buf);
     67 
     68   __libc_format_buffer(buf, sizeof(buf), "a%pb", reinterpret_cast<void*>(0xb0001234));
     69   EXPECT_STREQ("a0xb0001234b", buf);
     70 
     71   __libc_format_buffer(buf, sizeof(buf), "a%xz", 0x12ab);
     72   EXPECT_STREQ("a12abz", buf);
     73 
     74   __libc_format_buffer(buf, sizeof(buf), "a%Xz", 0x12ab);
     75   EXPECT_STREQ("a12ABz", buf);
     76 
     77   __libc_format_buffer(buf, sizeof(buf), "a%08xz", 0x123456);
     78   EXPECT_STREQ("a00123456z", buf);
     79 
     80   __libc_format_buffer(buf, sizeof(buf), "a%5dz", 1234);
     81   EXPECT_STREQ("a 1234z", buf);
     82 
     83   __libc_format_buffer(buf, sizeof(buf), "a%05dz", 1234);
     84   EXPECT_STREQ("a01234z", buf);
     85 
     86   __libc_format_buffer(buf, sizeof(buf), "a%8dz", 1234);
     87   EXPECT_STREQ("a    1234z", buf);
     88 
     89   __libc_format_buffer(buf, sizeof(buf), "a%-8dz", 1234);
     90   EXPECT_STREQ("a1234    z", buf);
     91 
     92   __libc_format_buffer(buf, sizeof(buf), "A%-11sZ", "abcdef");
     93   EXPECT_STREQ("Aabcdef     Z", buf);
     94 
     95   __libc_format_buffer(buf, sizeof(buf), "A%s:%dZ", "hello", 1234);
     96   EXPECT_STREQ("Ahello:1234Z", buf);
     97 
     98   __libc_format_buffer(buf, sizeof(buf), "a%03d:%d:%02dz", 5, 5, 5);
     99   EXPECT_STREQ("a005:5:05z", buf);
    100 
    101   void* p = NULL;
    102   __libc_format_buffer(buf, sizeof(buf), "a%d,%pz", 5, p);
    103   EXPECT_STREQ("a5,0x0z", buf);
    104 
    105   __libc_format_buffer(buf, sizeof(buf), "a%lld,%d,%d,%dz", 0x1000000000LL, 6, 7, 8);
    106   EXPECT_STREQ("a68719476736,6,7,8z", buf);
    107 #else // __BIONIC__
    108   GTEST_LOG_(INFO) << "This test does nothing.\n";
    109 #endif // __BIONIC__
    110 }
    111 
    112 TEST(libc_logging, d_INT_MAX) {
    113 #if defined(__BIONIC__)
    114   char buf[BUFSIZ];
    115   __libc_format_buffer(buf, sizeof(buf), "%d", INT_MAX);
    116   EXPECT_STREQ("2147483647", buf);
    117 #else // __BIONIC__
    118   GTEST_LOG_(INFO) << "This test does nothing.\n";
    119 #endif // __BIONIC__
    120 }
    121 
    122 TEST(libc_logging, d_INT_MIN) {
    123 #if defined(__BIONIC__)
    124   char buf[BUFSIZ];
    125   __libc_format_buffer(buf, sizeof(buf), "%d", INT_MIN);
    126   EXPECT_STREQ("-2147483648", buf);
    127 #else // __BIONIC__
    128   GTEST_LOG_(INFO) << "This test does nothing.\n";
    129 #endif // __BIONIC__
    130 }
    131 
    132 TEST(libc_logging, ld_LONG_MAX) {
    133 #if defined(__BIONIC__)
    134   char buf[BUFSIZ];
    135   __libc_format_buffer(buf, sizeof(buf), "%ld", LONG_MAX);
    136 #if __LP64__
    137   EXPECT_STREQ("9223372036854775807", buf);
    138 #else
    139   EXPECT_STREQ("2147483647", buf);
    140 #endif
    141 #else // __BIONIC__
    142   GTEST_LOG_(INFO) << "This test does nothing.\n";
    143 #endif // __BIONIC__
    144 }
    145 
    146 TEST(libc_logging, ld_LONG_MIN) {
    147 #if defined(__BIONIC__)
    148   char buf[BUFSIZ];
    149   __libc_format_buffer(buf, sizeof(buf), "%ld", LONG_MIN);
    150 #if __LP64__
    151   EXPECT_STREQ("-9223372036854775808", buf);
    152 #else
    153   EXPECT_STREQ("-2147483648", buf);
    154 #endif
    155 #else // __BIONIC__
    156   GTEST_LOG_(INFO) << "This test does nothing.\n";
    157 #endif // __BIONIC__
    158 }
    159 
    160 TEST(libc_logging, lld_LLONG_MAX) {
    161 #if defined(__BIONIC__)
    162   char buf[BUFSIZ];
    163   __libc_format_buffer(buf, sizeof(buf), "%lld", LLONG_MAX);
    164   EXPECT_STREQ("9223372036854775807", buf);
    165 #else // __BIONIC__
    166   GTEST_LOG_(INFO) << "This test does nothing.\n";
    167 #endif // __BIONIC__
    168 }
    169 
    170 TEST(libc_logging, lld_LLONG_MIN) {
    171 #if defined(__BIONIC__)
    172   char buf[BUFSIZ];
    173   __libc_format_buffer(buf, sizeof(buf), "%lld", LLONG_MIN);
    174   EXPECT_STREQ("-9223372036854775808", buf);
    175 #else // __BIONIC__
    176   GTEST_LOG_(INFO) << "This test does nothing.\n";
    177 #endif // __BIONIC__
    178 }
    179 
    180 TEST(libc_logging, buffer_overrun) {
    181 #if defined(__BIONIC__)
    182   char buf[BUFSIZ];
    183   ASSERT_EQ(11, __libc_format_buffer(buf, sizeof(buf), "hello %s", "world"));
    184   EXPECT_STREQ("hello world", buf);
    185   ASSERT_EQ(11, __libc_format_buffer(buf, 8, "hello %s", "world"));
    186   EXPECT_STREQ("hello w", buf);
    187 #else // __BIONIC__
    188   GTEST_LOG_(INFO) << "This test does nothing.\n";
    189 #endif // __BIONIC__
    190 }
    191