tests/core/errors.c

   1 #include "clar_libgit2.h"
   2
   3 void test_core_errors__public_api(void)
   4 {
   5         char *str_in_error;
   6
   7         giterr_clear();
   8         cl_assert(giterr_last() == NULL);
   9
  10         giterr_set_oom();
  11
  12         cl_assert(giterr_last() != NULL);
  13         cl_assert(giterr_last()->klass == GITERR_NOMEMORY);
  14         str_in_error = strstr(giterr_last()->message, "memory");
  15         cl_assert(str_in_error != NULL);
  16
  17         giterr_clear();
  18
  19         giterr_set_str(GITERR_REPOSITORY, "This is a test");
  20
  21         cl_assert(giterr_last() != NULL);
  22         str_in_error = strstr(giterr_last()->message, "This is a test");
  23         cl_assert(str_in_error != NULL);
  24
  25         giterr_clear();
  26         cl_assert(giterr_last() == NULL);
  27 }
  28
  29 #include "common.h"
  30 #include "util.h"
  31 #include "posix.h"
  32
  33 void test_core_errors__new_school(void)
  34 {
  35         char *str_in_error;
  36
  37         giterr_clear();
  38         cl_assert(giterr_last() == NULL);
  39
  40         giterr_set_oom(); /* internal fn */
  41
  42         cl_assert(giterr_last() != NULL);
  43         cl_assert(giterr_last()->klass == GITERR_NOMEMORY);
  44         str_in_error = strstr(giterr_last()->message, "memory");
  45         cl_assert(str_in_error != NULL);
  46
  47         giterr_clear();
  48
  49         giterr_set(GITERR_REPOSITORY, "This is a test"); /* internal fn */
  50
  51         cl_assert(giterr_last() != NULL);
  52         str_in_error = strstr(giterr_last()->message, "This is a test");
  53         cl_assert(str_in_error != NULL);
  54
  55         giterr_clear();
  56         cl_assert(giterr_last() == NULL);
  57
  58         do {
  59                 struct stat st;
  60                 memset(&st, 0, sizeof(st));
  61                 cl_assert(p_lstat("this_file_does_not_exist", &st) < 0);
  62                 GIT_UNUSED(st);
  63         } while (false);
  64         giterr_set(GITERR_OS, "stat failed"); /* internal fn */
  65
  66         cl_assert(giterr_last() != NULL);
  67         str_in_error = strstr(giterr_last()->message, "stat failed");
  68         cl_assert(str_in_error != NULL);
  69         cl_assert(git__prefixcmp(str_in_error, "stat failed: ") == 0);
  70         cl_assert(strlen(str_in_error) > strlen("stat failed: "));
  71
  72 #ifdef GIT_WIN32
  73         giterr_clear();
  74
  75         /* The MSDN docs use this to generate a sample error */
  76         cl_assert(GetProcessId(NULL) == 0);
  77         giterr_set(GITERR_OS, "GetProcessId failed"); /* internal fn */
  78
  79         cl_assert(giterr_last() != NULL);
  80         str_in_error = strstr(giterr_last()->message, "GetProcessId failed");
  81         cl_assert(str_in_error != NULL);
  82         cl_assert(git__prefixcmp(str_in_error, "GetProcessId failed: ") == 0);
  83         cl_assert(strlen(str_in_error) > strlen("GetProcessId failed: "));
  84 #endif
  85
  86         giterr_clear();
  87 }
  88
  89 void test_core_errors__restore(void)
  90 {
  91         git_error_state err_state = {0};
  92
  93         giterr_clear();
  94         cl_assert(giterr_last() == NULL);
  95
  96         cl_assert_equal_i(0, giterr_capture(&err_state, 0));
  97
  98         memset(&err_state, 0x0, sizeof(git_error_state));
  99
 100         giterr_set(42, "Foo: %s", "bar");
 101         cl_assert_equal_i(-1, giterr_capture(&err_state, -1));
 102
 103         cl_assert(giterr_last() == NULL);
 104
 105         giterr_set(99, "Bar: %s", "foo");
 106
 107         giterr_restore(&err_state);
 108
 109         cl_assert_equal_i(42, giterr_last()->klass);
 110         cl_assert_equal_s("Foo: bar", giterr_last()->message);
 111 }
 112
 113 static int test_arraysize_multiply(size_t nelem, size_t size)
 114 {
 115         GITERR_CHECK_ALLOC_MULTIPLY(nelem, size);
 116         return 0;
 117 }
 118
 119 void test_core_errors__integer_overflow_alloc_multiply(void)
 120 {
 121         cl_git_pass(test_arraysize_multiply(10, 10));
 122         cl_git_pass(test_arraysize_multiply(1000, 1000));
 123         cl_git_pass(test_arraysize_multiply(SIZE_MAX/sizeof(void *), sizeof(void *)));
 124         cl_git_pass(test_arraysize_multiply(0, 10));
 125         cl_git_pass(test_arraysize_multiply(10, 0));
 126
 127         cl_git_fail(test_arraysize_multiply(SIZE_MAX-1, sizeof(void *)));
 128         cl_git_fail(test_arraysize_multiply((SIZE_MAX/sizeof(void *))+1, sizeof(void *)));
 129
 130         cl_assert_equal_i(GITERR_NOMEMORY, giterr_last()->klass);
 131         cl_assert_equal_s("Out of memory", giterr_last()->message);
 132 }
 133
 134 static int test_arraysize_add(size_t one, size_t two)
 135 {
 136         GITERR_CHECK_ALLOC_ADD(one, two);
 137         return 0;
 138 }
 139
 140 void test_core_errors__integer_overflow_alloc_add(void)
 141 {
 142         cl_git_pass(test_arraysize_add(10, 10));
 143         cl_git_pass(test_arraysize_add(1000, 1000));
 144         cl_git_pass(test_arraysize_add(SIZE_MAX-10, 10));
 145
 146         cl_git_fail(test_arraysize_multiply(SIZE_MAX-1, 2));
 147         cl_git_fail(test_arraysize_multiply(SIZE_MAX, SIZE_MAX));
 148
 149         cl_assert_equal_i(GITERR_NOMEMORY, giterr_last()->klass);
 150         cl_assert_equal_s("Out of memory", giterr_last()->message);
 151 }