thodg/libgit2/tests/core/errors.c
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Hash : ef4857c2
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Date : 2015-08-03T16:50:27
errors: tighten up git_error_state OOMs a bit more When an error state is an OOM, make sure that we treat is specially and do not try to free it.
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tests/core/errors.c
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#include "clar_libgit2.h" void test_core_errors__public_api(void) { char *str_in_error; giterr_clear(); cl_assert(giterr_last() == NULL); giterr_set_oom(); cl_assert(giterr_last() != NULL); cl_assert(giterr_last()->klass == GITERR_NOMEMORY); str_in_error = strstr(giterr_last()->message, "memory"); cl_assert(str_in_error != NULL); giterr_clear(); giterr_set_str(GITERR_REPOSITORY, "This is a test"); cl_assert(giterr_last() != NULL); str_in_error = strstr(giterr_last()->message, "This is a test"); cl_assert(str_in_error != NULL); giterr_clear(); cl_assert(giterr_last() == NULL); } #include "common.h" #include "util.h" #include "posix.h" void test_core_errors__new_school(void) { char *str_in_error; giterr_clear(); cl_assert(giterr_last() == NULL); giterr_set_oom(); /* internal fn */ cl_assert(giterr_last() != NULL); cl_assert(giterr_last()->klass == GITERR_NOMEMORY); str_in_error = strstr(giterr_last()->message, "memory"); cl_assert(str_in_error != NULL); giterr_clear(); giterr_set(GITERR_REPOSITORY, "This is a test"); /* internal fn */ cl_assert(giterr_last() != NULL); str_in_error = strstr(giterr_last()->message, "This is a test"); cl_assert(str_in_error != NULL); giterr_clear(); cl_assert(giterr_last() == NULL); do { struct stat st; memset(&st, 0, sizeof(st)); cl_assert(p_lstat("this_file_does_not_exist", &st) < 0); GIT_UNUSED(st); } while (false); giterr_set(GITERR_OS, "stat failed"); /* internal fn */ cl_assert(giterr_last() != NULL); str_in_error = strstr(giterr_last()->message, "stat failed"); cl_assert(str_in_error != NULL); cl_assert(git__prefixcmp(str_in_error, "stat failed: ") == 0); cl_assert(strlen(str_in_error) > strlen("stat failed: ")); #ifdef GIT_WIN32 giterr_clear(); /* The MSDN docs use this to generate a sample error */ cl_assert(GetProcessId(NULL) == 0); giterr_set(GITERR_OS, "GetProcessId failed"); /* internal fn */ cl_assert(giterr_last() != NULL); str_in_error = strstr(giterr_last()->message, "GetProcessId failed"); cl_assert(str_in_error != NULL); cl_assert(git__prefixcmp(str_in_error, "GetProcessId failed: ") == 0); cl_assert(strlen(str_in_error) > strlen("GetProcessId failed: ")); #endif giterr_clear(); } void test_core_errors__restore(void) { git_error_state err_state = {0}; giterr_clear(); cl_assert(giterr_last() == NULL); cl_assert_equal_i(0, giterr_state_capture(&err_state, 0)); memset(&err_state, 0x0, sizeof(git_error_state)); giterr_set(42, "Foo: %s", "bar"); cl_assert_equal_i(-1, giterr_state_capture(&err_state, -1)); cl_assert(giterr_last() == NULL); giterr_set(99, "Bar: %s", "foo"); giterr_state_restore(&err_state); cl_assert_equal_i(42, giterr_last()->klass); cl_assert_equal_s("Foo: bar", giterr_last()->message); } void test_core_errors__free_state(void) { git_error_state err_state = {0}; giterr_clear(); giterr_set(42, "Foo: %s", "bar"); cl_assert_equal_i(-1, giterr_state_capture(&err_state, -1)); giterr_set(99, "Bar: %s", "foo"); giterr_state_free(&err_state); cl_assert_equal_i(99, giterr_last()->klass); cl_assert_equal_s("Bar: foo", giterr_last()->message); giterr_state_restore(&err_state); cl_assert(giterr_last() == NULL); } void test_core_errors__restore_oom(void) { git_error_state err_state = {0}; const git_error *oom_error = NULL; giterr_clear(); giterr_set_oom(); /* internal fn */ oom_error = giterr_last(); cl_assert(oom_error); cl_assert_equal_i(-1, giterr_state_capture(&err_state, -1)); cl_assert(giterr_last() == NULL); cl_assert_equal_i(GITERR_NOMEMORY, err_state.error_msg.klass); cl_assert_equal_s("Out of memory", err_state.error_msg.message); giterr_state_restore(&err_state); cl_assert(giterr_last()->klass == GITERR_NOMEMORY); cl_assert_(giterr_last() == oom_error, "static oom error not restored"); giterr_clear(); } static int test_arraysize_multiply(size_t nelem, size_t size) { size_t out; GITERR_CHECK_ALLOC_MULTIPLY(&out, nelem, size); return 0; } void test_core_errors__integer_overflow_alloc_multiply(void) { cl_git_pass(test_arraysize_multiply(10, 10)); cl_git_pass(test_arraysize_multiply(1000, 1000)); cl_git_pass(test_arraysize_multiply(SIZE_MAX/sizeof(void *), sizeof(void *))); cl_git_pass(test_arraysize_multiply(0, 10)); cl_git_pass(test_arraysize_multiply(10, 0)); cl_git_fail(test_arraysize_multiply(SIZE_MAX-1, sizeof(void *))); cl_git_fail(test_arraysize_multiply((SIZE_MAX/sizeof(void *))+1, sizeof(void *))); cl_assert_equal_i(GITERR_NOMEMORY, giterr_last()->klass); cl_assert_equal_s("Out of memory", giterr_last()->message); } static int test_arraysize_add(size_t one, size_t two) { size_t out; GITERR_CHECK_ALLOC_ADD(&out, one, two); return 0; } void test_core_errors__integer_overflow_alloc_add(void) { cl_git_pass(test_arraysize_add(10, 10)); cl_git_pass(test_arraysize_add(1000, 1000)); cl_git_pass(test_arraysize_add(SIZE_MAX-10, 10)); cl_git_fail(test_arraysize_multiply(SIZE_MAX-1, 2)); cl_git_fail(test_arraysize_multiply(SIZE_MAX, SIZE_MAX)); cl_assert_equal_i(GITERR_NOMEMORY, giterr_last()->klass); cl_assert_equal_s("Out of memory", giterr_last()->message); } void test_core_errors__integer_overflow_sets_oom(void) { size_t out; giterr_clear(); cl_assert(!GIT_ADD_SIZET_OVERFLOW(&out, SIZE_MAX-1, 1)); cl_assert_equal_p(NULL, giterr_last()); giterr_clear(); cl_assert(!GIT_ADD_SIZET_OVERFLOW(&out, 42, 69)); cl_assert_equal_p(NULL, giterr_last()); giterr_clear(); cl_assert(GIT_ADD_SIZET_OVERFLOW(&out, SIZE_MAX, SIZE_MAX)); cl_assert_equal_i(GITERR_NOMEMORY, giterr_last()->klass); cl_assert_equal_s("Out of memory", giterr_last()->message); giterr_clear(); cl_assert(GIT_ADD_SIZET_OVERFLOW(&out, SIZE_MAX, SIZE_MAX)); cl_assert_equal_i(GITERR_NOMEMORY, giterr_last()->klass); cl_assert_equal_s("Out of memory", giterr_last()->message); }