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Diffstat (limited to 'unittests.c')
| -rw-r--r-- | unittests.c | 1287 |
1 files changed, 0 insertions, 1287 deletions
diff --git a/unittests.c b/unittests.c deleted file mode 100644 index 0ba5b33..0000000 --- a/unittests.c +++ /dev/null @@ -1,1287 +0,0 @@ -/* - * unittests.c - unit tests for dynamic byte strings - * Copyright 2010 Lars Wirzenius - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - - -#define _GNU_SOURCE - -#include <setjmp.h> -#include <signal.h> -#include <stdbool.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> - -#include "dynstr.h" - - -#define FAIL(msg) \ - do { \ - printf("FAIL: %s\n", msg); \ - return false; \ - } while (0) - - -#define FAIL_UNLESS(cond) \ - do { \ - if (!(cond)) { \ - printf("FAIL: %s:%d: %s\n", \ - __FUNCTION__, __LINE__, #cond); \ - return false;\ - } \ - } while (0) - - -#define FAIL_UNLESS_EQUAL(a,b) \ - do { \ - if ((a) != (b)) { \ - printf("FAIL: %s:%d: not equal: '%s' and '%s'\n", \ - __FUNCTION__, __LINE__, #a, #b); \ - return false;\ - } \ - } while (0) - - -#define MAX_STRINGS 128 -static Dynstr *strings[MAX_STRINGS]; -static int num_strings; - -static void add(Dynstr *dynstr) -{ - if (num_strings < MAX_STRINGS) { - strings[num_strings] = dynstr; - num_strings++; - } -} - -static Dynstr *new_from_cstring(const char *cstring) -{ - Dynstr *dynstr; - - dynstr = dynstr_new_from_cstring(cstring); - add(dynstr); - return dynstr; -} - -static Dynstr *substr(Dynstr *dynstr, size_t offset, size_t size) -{ - Dynstr *sub; - - sub = dynstr_substr(dynstr, offset, size); - add(sub); - return sub; -} - -static void free_all_strings(void) -{ - while (num_strings > 0) { - num_strings--; - dynstr_free(strings[num_strings]); - } -} - - -static int test_default_error_handler_is_indicate(void) -{ - FAIL_UNLESS_EQUAL(dynstr_get_malloc_error_handler(), - dynstr_malloc_error_indicate); - return true; -} - - -static int test_sets_error_handler(void) -{ - dynstr_set_malloc_error_handler(dynstr_malloc_error_abort); - FAIL_UNLESS_EQUAL(dynstr_get_malloc_error_handler(), - dynstr_malloc_error_abort); - return true; -} - - -static int test_init_resets_error_handler(void) -{ - dynstr_set_malloc_error_handler(dynstr_malloc_error_abort); - dynstr_init(); - FAIL_UNLESS_EQUAL(dynstr_get_malloc_error_handler(), - dynstr_malloc_error_indicate); - return true; -} - - -static int test_indicate_handler_returns(void) -{ - dynstr_malloc_error_indicate(0, 0, NULL); - return true; -} - - -static jmp_buf env; -static void abort_handler(int signo) -{ - longjmp(env, 1); -} - - -static int test_abort_handler_calls_abort(void) -{ - struct sigaction act; - struct sigaction oldact; - - if (setjmp(env) == 0) { - act.sa_handler = abort_handler; - sigemptyset(&act.sa_mask); - act.sa_flags = 0; - sigaction(SIGABRT, &act, &oldact); - dynstr_set_malloc_error_handler(dynstr_malloc_error_abort); - dynstr_malloc_error_abort(0, 0, 0); - FAIL("dynstr_malloc_error_abort returned"); - } else { - sigaction(SIGABRT, &oldact, NULL); - } - return true; -} - - -static bool error_handler_called; - -static void error_handler(int error, size_t size, void *oldptr) -{ - error_handler_called = true; -} - -static int fail_malloc_after; - -static void *fail_malloc(size_t size) -{ - if (fail_malloc_after <= 0) - return NULL; - --fail_malloc_after; - return malloc(size); -} - -static int test_alloc_calls_error_handler(void) -{ - Dynstr *dynstr; - - error_handler_called = false; - dynstr_set_malloc_error_handler(error_handler); - dynstr_set_malloc(fail_malloc); - dynstr = dynstr_new_empty(); - FAIL_UNLESS_EQUAL(dynstr, NULL); - FAIL_UNLESS_EQUAL(error_handler_called, true); - return true; -} - -static int test_alloc_does_not_call_error_handler(void) -{ - Dynstr *dynstr; - - error_handler_called = false; - dynstr_set_malloc_error_handler(error_handler); - dynstr_set_malloc(malloc); - dynstr = dynstr_new_empty(); - FAIL_UNLESS_EQUAL(error_handler_called, false); - dynstr_free(dynstr); - return true; -} - - -static int test_uses_malloc_by_default(void) -{ - dynstr_init(); - FAIL_UNLESS_EQUAL(dynstr_get_malloc(), malloc); - return true; -} - - -static int test_sets_malloc(void) -{ - dynstr_set_malloc(fail_malloc); - FAIL_UNLESS_EQUAL(dynstr_get_malloc(), fail_malloc); - return true; -} - - -static int test_init_resets_malloc(void) -{ - dynstr_set_malloc(fail_malloc); - dynstr_init(); - FAIL_UNLESS_EQUAL(dynstr_get_malloc(), malloc); - return true; -} - - -static int test_empty_string_is_empty(void) -{ - Dynstr *dynstr; - - dynstr = dynstr_new_empty(); - FAIL_UNLESS_EQUAL(dynstr_len(dynstr), 0); - FAIL_UNLESS_EQUAL(dynstr_is_empty(dynstr), true); - dynstr_free(dynstr); - return true; -} - - -static int test_new_returns_NULL_upon_first_allocation_failure(void) -{ - Dynstr *dynstr; - - dynstr_init(); - dynstr_set_malloc(fail_malloc); - dynstr = dynstr_new_empty(); - FAIL_UNLESS_EQUAL(dynstr, NULL); - return true; -} - - -static int test_creates_from_cstring(void) -{ - const char bytes[] = "asdfasdfafdasdfasdfqw4tb"; - char newbytes[sizeof(bytes)]; - Dynstr *dynstr; - size_t size; - - dynstr = new_from_cstring(bytes); - FAIL_UNLESS_EQUAL(dynstr_len(dynstr), strlen(bytes)); - - size = dynstr_memcpy(newbytes, dynstr, 0, strlen(bytes)); - FAIL_UNLESS_EQUAL(size, strlen(bytes)); - FAIL_UNLESS_EQUAL(memcmp(bytes, newbytes, strlen(bytes)), 0); - - return true; -} - - -static int test_creates_from_memory(void) -{ - const char bytes[] = "asdfasdfafdasdfasdfqw4tb"; - char newbytes[sizeof(bytes)]; - Dynstr *dynstr; - size_t size; - - dynstr = dynstr_new_from_memory(bytes, sizeof(bytes)); - FAIL_UNLESS_EQUAL(dynstr_len(dynstr), sizeof(bytes)); - - size = dynstr_memcpy(newbytes, dynstr, 0, sizeof(bytes)); - FAIL_UNLESS_EQUAL(size, sizeof(bytes)); - FAIL_UNLESS_EQUAL(memcmp(bytes, newbytes, sizeof(bytes)), 0); - - dynstr_free(dynstr); - return true; -} - - -static int test_creates_from_constant_cstring(void) -{ - char bytes[] = "asdfasdfafdasdfasdfqw4tb"; - char newbytes[sizeof(bytes)]; - Dynstr *dynstr; - size_t size; - - dynstr = dynstr_new_from_constant_cstring(bytes); - FAIL_UNLESS_EQUAL(dynstr_len(dynstr), strlen(bytes)); - - size = dynstr_memcpy(newbytes, dynstr, 0, strlen(bytes)); - FAIL_UNLESS_EQUAL(size, strlen(bytes)); - FAIL_UNLESS_EQUAL(memcmp(bytes, newbytes, strlen(bytes)), 0); - - bytes[0] = 'x'; - dynstr_memcpy(newbytes, dynstr, 0, strlen(bytes)); - FAIL_UNLESS_EQUAL(memcmp(bytes, newbytes, strlen(bytes)), 0); - - dynstr_free(dynstr); - return true; -} - - -static int test_creates_from_constant_memory(void) -{ - char bytes[] = "asdfasdfafdasdfasdfqw4tb"; - char newbytes[sizeof(bytes)]; - Dynstr *dynstr; - size_t size; - - dynstr = dynstr_new_from_constant_memory(bytes, sizeof(bytes)); - FAIL_UNLESS_EQUAL(dynstr_len(dynstr), sizeof(bytes)); - - size = dynstr_memcpy(newbytes, dynstr, 0, sizeof(bytes)); - FAIL_UNLESS_EQUAL(size, sizeof(bytes)); - FAIL_UNLESS_EQUAL(memcmp(bytes, newbytes, sizeof(bytes)), 0); - - bytes[0] = 'x'; - dynstr_memcpy(newbytes, dynstr, 0, sizeof(bytes)); - FAIL_UNLESS_EQUAL(memcmp(bytes, newbytes, sizeof(bytes)), 0); - - dynstr_free(dynstr); - return true; -} - - -static int test_memcpy_returns_zero_if_offset_is_too_large(void) -{ - Dynstr *dynstr; - char mem[1024]; - - dynstr = new_from_cstring("hello"); - FAIL_UNLESS_EQUAL(dynstr_memcpy(mem, dynstr, dynstr_len(dynstr), 1), 0); - FAIL_UNLESS_EQUAL(dynstr_memcpy(mem, dynstr, dynstr_len(dynstr) + 1, 1), 0); - return true; -} - - -static int test_memcpy_truncates_if_copying_too_much(void) -{ - Dynstr *dynstr; - char mem[1024]; - size_t len; - - dynstr = new_from_cstring("hello"); - len = dynstr_len(dynstr); - FAIL_UNLESS_EQUAL(dynstr_memcpy(mem, dynstr, 0, len), len); - FAIL_UNLESS_EQUAL(dynstr_memcpy(mem, dynstr, 0, len + 1), len); - return true; -} - - -static int test_memcpy_copies_whole_string_ok(void) -{ - Dynstr *dynstr; - const char data[] = "hello"; - char mem[1024]; - size_t len; - - dynstr = new_from_cstring(data); - len = dynstr_len(dynstr); - dynstr_memcpy(mem, dynstr, 0, len); - FAIL_UNLESS_EQUAL(memcmp(data, mem, len), 0); - return true; -} - - -static int test_memcpy_copies_substring_ok(void) -{ - Dynstr *dynstr; - const char data[] = "hello"; - char mem[1024]; - size_t len; - - dynstr = new_from_cstring(data); - len = dynstr_len(dynstr); - dynstr_memcpy(mem, dynstr, 1, len-2); - FAIL_UNLESS_EQUAL(memcmp(data + 1, mem, len-2), 0); - return true; -} - - -static int test_copies_empty_substring_ok(void) -{ - Dynstr *dynstr; - Dynstr *sub; - size_t size; - char buf[1024]; - - dynstr = new_from_cstring("abcdef"); - sub = substr(dynstr, 1, 0); - size = dynstr_memcpy(buf, sub, 0, dynstr_len(sub)); - FAIL_UNLESS_EQUAL(size, 0); - return true; -} - - -static int test_copies_single_byte_substring_ok(void) -{ - Dynstr *dynstr; - Dynstr *sub; - size_t size; - char buf[1024]; - - dynstr = new_from_cstring("abcdef"); - sub = substr(dynstr, 1, 1); - size = dynstr_memcpy(buf, sub, 0, dynstr_len(sub)); - FAIL_UNLESS_EQUAL(size, 1); - FAIL_UNLESS_EQUAL(memcmp(buf, "b", 1), 0); - return true; -} - - -static int test_copies_middle_substring_ok(void) -{ - Dynstr *dynstr; - Dynstr *sub; - size_t size; - char buf[1024]; - - dynstr = new_from_cstring("abcdef"); - sub = substr(dynstr, 1, 4); - size = dynstr_memcpy(buf, sub, 0, dynstr_len(sub)); - FAIL_UNLESS_EQUAL(size, 4); - FAIL_UNLESS_EQUAL(memcmp(buf, "bcde", 4), 0); - return true; -} - - -static int test_copies_initial_substring_ok(void) -{ - Dynstr *dynstr; - Dynstr *sub; - size_t size; - char buf[1024]; - - dynstr = new_from_cstring("abcdef"); - sub = substr(dynstr, 0, 5); - size = dynstr_memcpy(buf, sub, 0, dynstr_len(sub)); - FAIL_UNLESS_EQUAL(size, 5); - FAIL_UNLESS_EQUAL(memcmp(buf, "abcde", 5), 0); - return true; -} - - -static int test_copies_final_substring_ok(void) -{ - Dynstr *dynstr; - Dynstr *sub; - size_t size; - char buf[1024]; - - dynstr = new_from_cstring("abcdef"); - sub = substr(dynstr, 1, 5); - size = dynstr_memcpy(buf, sub, 0, dynstr_len(sub)); - FAIL_UNLESS_EQUAL(size, 5); - FAIL_UNLESS_EQUAL(memcmp(buf, "bcdef", 5), 0); - return true; -} - - -static int test_copies_empty_substring_when_offset_too_big(void) -{ - Dynstr *dynstr; - Dynstr *sub; - size_t size; - char buf[1024]; - - dynstr = new_from_cstring("abcdef"); - sub = substr(dynstr, 100, 1); - size = dynstr_memcpy(buf, sub, 0, dynstr_len(sub)); - FAIL_UNLESS_EQUAL(size, 0); - return true; -} - - -static int test_copies_partial_substring_when_length_too_big(void) -{ - Dynstr *dynstr; - Dynstr *sub; - size_t size; - char buf[1024]; - - dynstr = new_from_cstring("abcdef"); - sub = substr(dynstr, 1, 6); - size = dynstr_memcpy(buf, sub, 0, dynstr_len(sub)); - FAIL_UNLESS_EQUAL(size, 5); - FAIL_UNLESS_EQUAL(memcmp(buf, "bcdef", 5), 0); - return true; -} - - -static int test_strdup_duplicates_string(void) -{ - Dynstr *dynstr; - char *cstring; - char data[] = "hello, world"; - - dynstr = dynstr_new_from_constant_cstring(data); - cstring = dynstr_strdup(dynstr); - FAIL_UNLESS_EQUAL(memcmp(data, cstring, sizeof(data)), 0); - free(cstring); - dynstr_free(dynstr); - return true; -} - - -static int test_cats_ok(void) -{ - Dynstr *a; - Dynstr *b; - Dynstr *c; - char buf[1024]; - size_t size; - - a = new_from_cstring("abc"); - b = new_from_cstring("def"); - c = dynstr_cat(a, b); - FAIL_UNLESS_EQUAL(dynstr_len(c), 6); - size = dynstr_memcpy(buf, c, 0, dynstr_len(c)); - FAIL_UNLESS_EQUAL(size, 6); - FAIL_UNLESS_EQUAL(memcmp(buf, "abcdef", 6), 0); - dynstr_free(c); - return true; -} - - -static int test_cat_returns_NULL_for_first_malloc_failure(void) -{ - Dynstr *a; - Dynstr *b; - Dynstr *c; - - a = new_from_cstring("abc"); - b = new_from_cstring("def"); - dynstr_set_malloc(fail_malloc); - c = dynstr_cat(a, b); - FAIL_UNLESS_EQUAL(c, NULL); - return true; -} - - -static int test_byteat_reports_correct_character(void) -{ - Dynstr *dynstr; - - dynstr = new_from_cstring("abc"); - FAIL_UNLESS_EQUAL(dynstr_byte_at(dynstr, 1), 'b'); - return true; -} - - -static int test_byteat_reports_error_for_too_large_offset(void) -{ - Dynstr *dynstr; - - dynstr = new_from_cstring("abc"); - FAIL_UNLESS_EQUAL(dynstr_byte_at(dynstr, 1024), -1); - return true; -} - - -static int test_byteat_reports_0xff_correctly(void) -{ - Dynstr *dynstr; - - dynstr = new_from_cstring("\xff"); - FAIL_UNLESS_EQUAL(dynstr_byte_at(dynstr, 0), 255); - return true; -} - - -static int test_first_byte_finds_byte(void) -{ - Dynstr *dynstr; - size_t offset; - - dynstr = new_from_cstring("123456"); - offset = dynstr_first_byte(dynstr, 0, '3'); - FAIL_UNLESS_EQUAL(offset, 2); - return true; -} - - -static int test_first_byte_only_finds_first_byte(void) -{ - Dynstr *dynstr; - size_t offset; - - dynstr = new_from_cstring("123123"); - offset = dynstr_first_byte(dynstr, 0, '3'); - FAIL_UNLESS_EQUAL(offset, 2); - return true; -} - - -static int test_first_byte_does_not_find_nonexistent_byte(void) -{ - Dynstr *dynstr; - size_t offset; - - dynstr = new_from_cstring("123456"); - offset = dynstr_first_byte(dynstr, 0, 'x'); - FAIL_UNLESS_EQUAL(offset, DYNSTR_NOT_FOUND); - return true; -} - - -static int test_first_byte_does_not_find_byte_outside_range(void) -{ - Dynstr *dynstr; - size_t offset; - - dynstr = new_from_cstring("123456"); - offset = dynstr_first_byte(dynstr, 4, '3'); - FAIL_UNLESS_EQUAL(offset, DYNSTR_NOT_FOUND); - return true; -} - - -static int test_first_byte_only_finds_byte_inside_range(void) -{ - Dynstr *dynstr; - size_t offset; - - dynstr = new_from_cstring("123123"); - offset = dynstr_first_byte(dynstr, 3, '3'); - FAIL_UNLESS_EQUAL(offset, 5); - return true; -} - - -static int test_first_byte_does_not_find_in_range_outside_string(void) -{ - Dynstr *dynstr; - size_t offset; - - dynstr = new_from_cstring("123123"); - offset = dynstr_first_byte(dynstr, 128, '3'); - FAIL_UNLESS_EQUAL(offset, DYNSTR_NOT_FOUND); - return true; -} - - -static int test_last_byte_finds_byte(void) -{ - Dynstr *dynstr; - size_t offset; - - dynstr = new_from_cstring("123456"); - offset = dynstr_last_byte(dynstr, 0, '3'); - FAIL_UNLESS_EQUAL(offset, 2); - return true; -} - - -static int test_last_byte_only_finds_last_byte(void) -{ - Dynstr *dynstr; - size_t offset; - - dynstr = new_from_cstring("123123"); - offset = dynstr_last_byte(dynstr, 0, '3'); - FAIL_UNLESS_EQUAL(offset, 5); - return true; -} - - -static int test_last_byte_does_not_find_nonexistent_byte(void) -{ - Dynstr *dynstr; - size_t offset; - - dynstr = new_from_cstring("123456"); - offset = dynstr_last_byte(dynstr, 0, 'x'); - FAIL_UNLESS_EQUAL(offset, DYNSTR_NOT_FOUND); - return true; -} - - -static int test_last_byte_does_not_find_byte_outside_range(void) -{ - Dynstr *dynstr; - size_t offset; - - dynstr = new_from_cstring("123456"); - offset = dynstr_last_byte(dynstr, 4, '3'); - FAIL_UNLESS_EQUAL(offset, DYNSTR_NOT_FOUND); - return true; -} - - -static int test_last_byte_only_finds_byte_inside_range(void) -{ - Dynstr *dynstr; - size_t offset; - - dynstr = new_from_cstring("123123"); - offset = dynstr_last_byte(dynstr, 3, '3'); - FAIL_UNLESS_EQUAL(offset, 5); - return true; -} - - -static int test_last_byte_does_not_find_in_range_outside_string(void) -{ - Dynstr *dynstr; - size_t offset; - - dynstr = new_from_cstring("123123"); - offset = dynstr_last_byte(dynstr, 128, '3'); - FAIL_UNLESS_EQUAL(offset, DYNSTR_NOT_FOUND); - return true; -} - - -static int test_first_string_finds_pattern(void) -{ - Dynstr *dynstr; - Dynstr *pattern; - size_t offset; - - dynstr = new_from_cstring("123456"); - pattern = new_from_cstring("345"); - offset = dynstr_first_string(dynstr, 0, pattern); - FAIL_UNLESS_EQUAL(offset, 2); - return true; -} - - -static int test_first_string_only_finds_first_pattern(void) -{ - Dynstr *dynstr; - Dynstr *pattern; - size_t offset; - - dynstr = new_from_cstring("123123"); - pattern = new_from_cstring("123"); - offset = dynstr_first_string(dynstr, 0, pattern); - FAIL_UNLESS_EQUAL(offset, 0); - return true; -} - - -static int test_first_string_does_not_find_nonexistent_pattern(void) -{ - Dynstr *dynstr; - Dynstr *pattern; - size_t offset; - - dynstr = new_from_cstring("123456"); - pattern = new_from_cstring("x"); - offset = dynstr_first_string(dynstr, 0, pattern); - FAIL_UNLESS_EQUAL(offset, DYNSTR_NOT_FOUND); - return true; -} - - -static int test_first_string_does_not_find_pattern_outside_range(void) -{ - Dynstr *dynstr; - Dynstr *pattern; - size_t offset; - - dynstr = new_from_cstring("123456"); - pattern = new_from_cstring("123"); - offset = dynstr_first_string(dynstr, 3, pattern); - FAIL_UNLESS_EQUAL(offset, DYNSTR_NOT_FOUND); - return true; -} - - -static int test_first_string_only_finds_pattern_inside_range(void) -{ - Dynstr *dynstr; - Dynstr *pattern; - size_t offset; - - dynstr = new_from_cstring("123123"); - pattern = new_from_cstring("3"); - offset = dynstr_first_string(dynstr, 3, pattern); - FAIL_UNLESS_EQUAL(offset, 5); - return true; -} - - -static int test_first_string_does_not_find_empty_pattern(void) -{ - Dynstr *dynstr; - Dynstr *pattern; - size_t offset; - - dynstr = new_from_cstring("123123"); - pattern = new_from_cstring(""); - offset = dynstr_first_string(dynstr, 0, pattern); - FAIL_UNLESS_EQUAL(offset, DYNSTR_NOT_FOUND); - return true; -} - - -static int test_last_string_finds_pattern(void) -{ - Dynstr *dynstr; - Dynstr *pattern; - size_t offset; - - dynstr = new_from_cstring("123456"); - pattern = new_from_cstring("345"); - offset = dynstr_last_string(dynstr, 0, pattern); - FAIL_UNLESS_EQUAL(offset, 2); - return true; -} - - -static int test_last_string_only_finds_last_pattern(void) -{ - Dynstr *dynstr; - Dynstr *pattern; - size_t offset; - - dynstr = new_from_cstring("123123"); - pattern = new_from_cstring("123"); - offset = dynstr_last_string(dynstr, 0, pattern); - FAIL_UNLESS_EQUAL(offset, 3); - return true; -} - - -static int test_last_string_does_not_find_nonexistent_pattern(void) -{ - Dynstr *dynstr; - Dynstr *pattern; - size_t offset; - - dynstr = new_from_cstring("123456"); - pattern = new_from_cstring("x"); - offset = dynstr_last_string(dynstr, 0, pattern); - FAIL_UNLESS_EQUAL(offset, DYNSTR_NOT_FOUND); - return true; -} - - -static int test_last_string_does_not_find_pattern_outside_range(void) -{ - Dynstr *dynstr; - Dynstr *pattern; - size_t offset; - - dynstr = new_from_cstring("123456"); - pattern = new_from_cstring("123"); - offset = dynstr_last_string(dynstr, 3, pattern); - FAIL_UNLESS_EQUAL(offset, DYNSTR_NOT_FOUND); - return true; -} - - -static int test_last_string_only_finds_pattern_inside_range(void) -{ - Dynstr *dynstr; - Dynstr *pattern; - size_t offset; - - dynstr = new_from_cstring("123123"); - pattern = new_from_cstring("3"); - offset = dynstr_last_string(dynstr, 3, pattern); - FAIL_UNLESS_EQUAL(offset, 5); - return true; -} - - -static int test_last_string_does_not_find_empty_pattern(void) -{ - Dynstr *dynstr; - Dynstr *pattern; - size_t offset; - - dynstr = new_from_cstring("123123"); - pattern = new_from_cstring(""); - offset = dynstr_last_string(dynstr, 0, pattern); - FAIL_UNLESS_EQUAL(offset, DYNSTR_NOT_FOUND); - return true; -} - -static int test_cmp_returns_0_for_equal_strings(void) -{ - Dynstr *a; - Dynstr *b; - - a = new_from_cstring("foo"); - b = new_from_cstring("foo"); - FAIL_UNLESS_EQUAL(dynstr_cmp(a, b), 0); - return true; -} - - -static int test_cmp_returns_0_for_empty_strings(void) -{ - Dynstr *a; - Dynstr *b; - - a = dynstr_new_empty(); - b = dynstr_new_empty(); - FAIL_UNLESS_EQUAL(dynstr_cmp(a, b), 0); - dynstr_free(a); - dynstr_free(b); - return true; -} - - -static int test_cmp_returns_negative_if_only_first_string_is_empty(void) -{ - Dynstr *a; - Dynstr *b; - - a = new_from_cstring(""); - b = new_from_cstring("foo"); - FAIL_UNLESS(dynstr_cmp(a, b) < 0); - return true; -} - - -static int test_cmp_returns_positive_if_only_second_string_is_empty(void) -{ - Dynstr *a; - Dynstr *b; - - a = new_from_cstring("foo"); - b = new_from_cstring(""); - FAIL_UNLESS(dynstr_cmp(a, b) > 0); - return true; -} - - -static int test_cmp_returns_negative_if_first_string_comes_first(void) -{ - Dynstr *a; - Dynstr *b; - - a = new_from_cstring("x"); - b = new_from_cstring("\xff"); /* Check for unsigned comparision, too. */ - FAIL_UNLESS(dynstr_cmp(a, b) < 0); - return true; -} - - -static int test_cmp_returns_positive_if_second_string_comes_first(void) -{ - Dynstr *a; - Dynstr *b; - - a = new_from_cstring("\xff"); - b = new_from_cstring("x"); - FAIL_UNLESS(dynstr_cmp(a, b) > 0); - return true; -} - - -static int write_test(long (*callback)(char *filename, Dynstr *dynstr)) -{ - char tempname[] = "unittest.tmp.XXXXXX"; - int fd; - size_t num_bytes; - Dynstr *dynstr; - Dynstr *dynstr2; - char buf[1024]; - int read_bytes; - - dynstr = new_from_cstring("life is too short for str* and mem* in apps"); - - fd = mkstemp(tempname); - if (fd == -1) - abort(); - - num_bytes = callback(tempname, dynstr); - - FAIL_UNLESS_EQUAL(num_bytes, dynstr_len(dynstr)); - - read_bytes = read(fd, buf, sizeof(buf)); - if (read_bytes == -1) - abort(); - close(fd); - remove(tempname); - - dynstr2 = dynstr_new_from_memory(buf, read_bytes); - FAIL_UNLESS_EQUAL(read_bytes, dynstr_len(dynstr)); - FAIL_UNLESS_EQUAL(dynstr_cmp(dynstr, dynstr2), 0); - dynstr_free(dynstr2); - - return true; -} - - -static long fwrite_callback(char *filename, Dynstr *dynstr) -{ - FILE *f; - long num_bytes; - - f = fopen(filename, "w"); - num_bytes = dynstr_fwrite(f, dynstr); - fclose(f); - return num_bytes; -} - - -static int test_fwrite_writes_string(void) -{ - return write_test(fwrite_callback); -} - - -static long write_callback(char *filename, Dynstr *dynstr) -{ - int fd; - long num_bytes; - - fd = open(filename, O_WRONLY, 0); - num_bytes = dynstr_write(fd, dynstr); - close(fd); - return num_bytes; -} - - -static int test_write_writes_string(void) -{ - return write_test(write_callback); -} - - -static int read_test(Dynstr *(*callback)(char *filename, size_t size)) -{ - char tempname[] = "unittest.tmp.XXXXXX"; - int fd; - Dynstr *dynstr; - Dynstr *dynstr2; - const char canonical[] = "life is too short for str* and mem* in apps"; - - fd = mkstemp(tempname); - if (fd == -1) - abort(); - if (write(fd, canonical, sizeof(canonical)) == -1) - abort(); - close(fd); - - dynstr = callback(tempname, sizeof(canonical) * 2); - remove(tempname); - - FAIL_UNLESS(dynstr != NULL); - FAIL_UNLESS_EQUAL(dynstr_len(dynstr), sizeof(canonical)); - - dynstr2 = dynstr_new_from_memory(canonical, sizeof(canonical)); - FAIL_UNLESS_EQUAL(dynstr_cmp(dynstr, dynstr2), 0); - - dynstr_free(dynstr); - dynstr_free(dynstr2); - - return true; -} - - -static Dynstr *fread_callback(char *filename, size_t size) -{ - FILE *f; - Dynstr *dynstr; - - f = fopen(filename, "r"); - dynstr = dynstr_fread(f, size); - fclose(f); - return dynstr; -} - - -static int test_fread_reads_string(void) -{ - return read_test(fread_callback); -} - - -static Dynstr *read_callback(char *filename, size_t size) -{ - int fd; - Dynstr *dynstr; - - fd = open(filename, O_RDONLY, 0); - dynstr = dynstr_read(fd, size); - close(fd); - return dynstr; -} - - -static int test_read_reads_string(void) -{ - return read_test(read_callback); -} - - -static int readline_test(Dynstr *(*callback)(char *filename)) -{ - char tempname[] = "unittest.tmp.XXXXXX"; - int fd; - const char cline1[] = "life is too short for str* and mem* in apps\n"; - const char cline2[] = "use dynstr instead!\n"; - Dynstr *lines; - Dynstr *line1; - Dynstr *line2; - Dynstr *result; - - fd = mkstemp(tempname); - if (fd == -1) - abort(); - - line1 = dynstr_new_from_constant_cstring(cline1); - line2 = dynstr_new_from_constant_cstring(cline2); - lines = dynstr_cat(line1, line2); - if (dynstr_write(fd, lines) != dynstr_len(lines)) - abort(); - close(fd); - - result = callback(tempname); - remove(tempname); - - FAIL_UNLESS_EQUAL(dynstr_cmp(line1, result), 0); - - dynstr_free(line1); - dynstr_free(line2); - dynstr_free(lines); - dynstr_free(result); - - return true; -} - - -static Dynstr *freadline_callback(char *filename) -{ - FILE *f; - Dynstr *line1; - - f = fopen(filename, "r"); - line1 = dynstr_freadline(f); - fclose(f); - return line1; -} - - -static int test_freadline_reads_first_line(void) -{ - return readline_test(freadline_callback); -} - - -static Dynstr *readline_callback(char *filename) -{ - int fd; - Dynstr *line1; - - fd = open(filename, O_RDONLY, 0); - line1 = dynstr_readline(fd); - close(fd); - return line1; -} - - -static int test_readline_reads_first_line(void) -{ - return readline_test(readline_callback); -} - - -static void setup(void) -{ - dynstr_init(); - fail_malloc_after = 0; -} - - -static void teardown(void) -{ - free_all_strings(); -} - - -struct test { - const char *name; - int (*test)(void); -}; - - -#define TEST(func) { #func, func } - -static const struct test tests[] = { - TEST(test_default_error_handler_is_indicate), - TEST(test_sets_error_handler), - TEST(test_init_resets_error_handler), - TEST(test_uses_malloc_by_default), - TEST(test_sets_malloc), - TEST(test_init_resets_malloc), - TEST(test_alloc_calls_error_handler), - TEST(test_alloc_does_not_call_error_handler), - TEST(test_indicate_handler_returns), - TEST(test_abort_handler_calls_abort), - TEST(test_empty_string_is_empty), - TEST(test_new_returns_NULL_upon_first_allocation_failure), - TEST(test_creates_from_cstring), - TEST(test_creates_from_memory), - TEST(test_creates_from_constant_cstring), - TEST(test_creates_from_constant_memory), - TEST(test_memcpy_returns_zero_if_offset_is_too_large), - TEST(test_memcpy_truncates_if_copying_too_much), - TEST(test_memcpy_copies_whole_string_ok), - TEST(test_memcpy_copies_substring_ok), - TEST(test_strdup_duplicates_string), - TEST(test_copies_empty_substring_ok), - TEST(test_copies_single_byte_substring_ok), - TEST(test_copies_middle_substring_ok), - TEST(test_copies_initial_substring_ok), - TEST(test_copies_final_substring_ok), - TEST(test_copies_empty_substring_when_offset_too_big), - TEST(test_copies_partial_substring_when_length_too_big), - TEST(test_cats_ok), - TEST(test_cat_returns_NULL_for_first_malloc_failure), - TEST(test_byteat_reports_correct_character), - TEST(test_byteat_reports_error_for_too_large_offset), - TEST(test_byteat_reports_0xff_correctly), - TEST(test_first_byte_finds_byte), - TEST(test_first_byte_only_finds_first_byte), - TEST(test_first_byte_does_not_find_nonexistent_byte), - TEST(test_first_byte_does_not_find_byte_outside_range), - TEST(test_first_byte_only_finds_byte_inside_range), - TEST(test_first_byte_does_not_find_in_range_outside_string), - TEST(test_last_byte_finds_byte), - TEST(test_last_byte_only_finds_last_byte), - TEST(test_last_byte_does_not_find_nonexistent_byte), - TEST(test_last_byte_does_not_find_byte_outside_range), - TEST(test_last_byte_only_finds_byte_inside_range), - TEST(test_last_byte_does_not_find_in_range_outside_string), - TEST(test_first_string_finds_pattern), - TEST(test_first_string_only_finds_first_pattern), - TEST(test_first_string_does_not_find_nonexistent_pattern), - TEST(test_first_string_does_not_find_pattern_outside_range), - TEST(test_first_string_only_finds_pattern_inside_range), - TEST(test_first_string_does_not_find_empty_pattern), - TEST(test_last_string_finds_pattern), - TEST(test_last_string_only_finds_last_pattern), - TEST(test_last_string_does_not_find_nonexistent_pattern), - TEST(test_last_string_does_not_find_pattern_outside_range), - TEST(test_last_string_only_finds_pattern_inside_range), - TEST(test_last_string_does_not_find_empty_pattern), - TEST(test_cmp_returns_0_for_equal_strings), - TEST(test_cmp_returns_0_for_empty_strings), - TEST(test_cmp_returns_negative_if_only_first_string_is_empty), - TEST(test_cmp_returns_positive_if_only_second_string_is_empty), - TEST(test_cmp_returns_negative_if_first_string_comes_first), - TEST(test_cmp_returns_positive_if_second_string_comes_first), - TEST(test_fwrite_writes_string), - TEST(test_write_writes_string), - TEST(test_fread_reads_string), - TEST(test_read_reads_string), - TEST(test_freadline_reads_first_line), - TEST(test_readline_reads_first_line), -}; -static const int num_tests = sizeof(tests) / sizeof(tests[0]); - -int main(void) -{ - int exit; - - exit = EXIT_SUCCESS; - for (int i = 0; i < num_tests; ++i) { - setup(); - if (!tests[i].test()) { - exit = EXIT_FAILURE; - } - teardown(); - } - return exit; -} |