sbuf_core_test.c revision 321118
1/*- 2 * Copyright (c) 2017 Ngie Cooper <ngie@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: stable/10/lib/libsbuf/tests/sbuf_core_test.c 321118 2017-07-18 08:30:58Z ngie $"); 29 30#include <sys/param.h> 31#include <sys/sbuf.h> 32#include <errno.h> 33#include <stdarg.h> 34#include <stdio.h> 35#include <stdlib.h> 36#include <string.h> 37#include <unistd.h> 38 39#include <atf-c.h> 40 41#include "sbuf_test_common.h" 42 43static char test_string[] = "this is a test string"; 44#define TEST_STRING_CHOP_COUNT 5 45_Static_assert(nitems(test_string) > TEST_STRING_CHOP_COUNT, 46 "test_string is too short"); 47 48ATF_TC_WITHOUT_HEAD(sbuf_clear_test); 49ATF_TC_BODY(sbuf_clear_test, tc) 50{ 51 struct sbuf *sb; 52 ssize_t buf_len; 53 pid_t child_proc; 54 55 sb = sbuf_new_auto(); 56 ATF_REQUIRE_MSG(sb != NULL, "sbuf_new_auto failed: %s", 57 strerror(errno)); 58 59 ATF_REQUIRE_MSG(sbuf_cat(sb, test_string) == 0, "sbuf_cat failed"); 60 61 /* 62 * Cheat so we can get the contents of the buffer before calling 63 * sbuf_finish(3) below, making additional sbuf changes impossible. 64 */ 65 child_proc = atf_utils_fork(); 66 if (child_proc == 0) { 67 sbuf_putbuf(sb); 68 exit(0); 69 } 70 atf_utils_wait(child_proc, 0, test_string, ""); 71 72 sbuf_clear(sb); 73 74 ATF_REQUIRE_MSG(sbuf_finish(sb) == 0, "sbuf_finish failed: %s", 75 strerror(errno)); 76 77 buf_len = sbuf_len(sb); 78 ATF_REQUIRE_MSG(buf_len == 0, "sbuf_len (%zd) != 0", buf_len); 79 ATF_REQUIRE_STREQ_MSG(sbuf_data(sb), "", 80 "sbuf (\"%s\") was not empty", sbuf_data(sb)); 81 82 sbuf_delete(sb); 83} 84 85ATF_TC_WITHOUT_HEAD(sbuf_done_and_sbuf_finish_test); 86ATF_TC_BODY(sbuf_done_and_sbuf_finish_test, tc) 87{ 88 struct sbuf *sb; 89 90 sb = sbuf_new_auto(); 91 ATF_REQUIRE_MSG(sb != NULL, "sbuf_new_auto failed: %s", 92 strerror(errno)); 93 94 ATF_CHECK(sbuf_done(sb) == 0); 95 96 ATF_REQUIRE_MSG(sbuf_finish(sb) == 0, "sbuf_finish failed: %s", 97 strerror(errno)); 98 99 ATF_CHECK(sbuf_done(sb) != 0); 100 101 sbuf_delete(sb); 102} 103 104ATF_TC_WITHOUT_HEAD(sbuf_len_test); 105ATF_TC_BODY(sbuf_len_test, tc) 106{ 107 struct sbuf *sb; 108 ssize_t buf_len, test_string_len; 109 int i; 110 111 sb = sbuf_new_auto(); 112 ATF_REQUIRE_MSG(sb != NULL, "sbuf_new_auto failed: %s", 113 strerror(errno)); 114 115 test_string_len = strlen(test_string); 116 for (i = 0; i < 20; i++) { 117 buf_len = sbuf_len(sb); 118 ATF_REQUIRE_MSG(buf_len == (ssize_t)(i * test_string_len), 119 "sbuf_len (%zd) != %zu", buf_len, i * test_string_len); 120 ATF_REQUIRE_MSG(sbuf_cat(sb, test_string) == 0, "sbuf_cat failed"); 121 } 122 123#ifdef HAVE_SBUF_SET_FLAGS 124 sbuf_set_flags(sb, SBUF_INCLUDENUL); 125 ATF_REQUIRE_MSG((ssize_t)(i * test_string_len + 1) == sbuf_len(sb), 126 "sbuf_len(..) didn't report the NUL char"); 127#endif 128 129 ATF_REQUIRE_MSG(sbuf_finish(sb) == 0, "sbuf_finish failed: %s", 130 strerror(errno)); 131 132 sbuf_delete(sb); 133} 134 135ATF_TC_WITHOUT_HEAD(sbuf_setpos_test); 136ATF_TC_BODY(sbuf_setpos_test, tc) 137{ 138 struct sbuf *sb; 139 size_t test_string_chopped_len, test_string_len; 140 ssize_t buf_len; 141 142 sb = sbuf_new_auto(); 143 ATF_REQUIRE_MSG(sb != NULL, "sbuf_new_auto failed: %s", 144 strerror(errno)); 145 146 /* 147 * An obvious sanity check -- if sbuf_len(..) lies, these invariants 148 * are impossible to test. 149 */ 150 ATF_REQUIRE(sbuf_len(sb) == 0); 151 152 ATF_CHECK(sbuf_setpos(sb, -1) == -1); 153 ATF_CHECK(sbuf_setpos(sb, 0) == 0); 154 ATF_CHECK(sbuf_setpos(sb, 1) == -1); 155 156 ATF_REQUIRE_MSG(sbuf_cat(sb, test_string) == 0, "sbuf_cat failed"); 157 158 buf_len = sbuf_len(sb); 159 test_string_len = strlen(test_string); 160 test_string_chopped_len = test_string_len - TEST_STRING_CHOP_COUNT; 161 ATF_REQUIRE_MSG(buf_len == (ssize_t)test_string_len, 162 "sbuf length (%zd) != test_string length (%zu)", buf_len, 163 test_string_len); 164 165 /* Out of bounds (under length) */ 166 ATF_CHECK(sbuf_setpos(sb, -1) == -1); 167 /* 168 * Out of bounds (over length) 169 * 170 * Note: SBUF_INCLUDENUL not set, so take '\0' into account. 171 */ 172 ATF_CHECK(sbuf_setpos(sb, test_string_len + 2) == -1); 173 /* Within bounds */ 174 ATF_CHECK(sbuf_setpos(sb, test_string_chopped_len) == 0); 175 176 ATF_REQUIRE_MSG(sbuf_finish(sb) == 0, "sbuf_finish failed: %s", 177 strerror(errno)); 178 179 buf_len = sbuf_len(sb); 180 ATF_REQUIRE_MSG(buf_len == (ssize_t)test_string_chopped_len, 181 "sbuf_setpos didn't truncate string as expected"); 182 ATF_REQUIRE_MSG(strncmp(sbuf_data(sb), test_string, buf_len) == 0, 183 "sbuf (\"%s\") != test string (\"%s\") for [0,%zd]", sbuf_data(sb), 184 test_string, buf_len); 185 186 sbuf_delete(sb); 187} 188 189ATF_TP_ADD_TCS(tp) 190{ 191 192 ATF_TP_ADD_TC(tp, sbuf_clear_test); 193 ATF_TP_ADD_TC(tp, sbuf_done_and_sbuf_finish_test); 194 ATF_TP_ADD_TC(tp, sbuf_len_test); 195#if 0 196 /* TODO */ 197#ifdef HAVE_SBUF_CLEAR_FLAGS 198 ATF_TP_ADD_TC(tp, sbuf_clear_flags_test); 199#endif 200#ifdef HAVE_SBUF_GET_FLAGS 201 ATF_TP_ADD_TC(tp, sbuf_get_flags_test); 202#endif 203 ATF_TP_ADD_TC(tp, sbuf_new_positive_test); 204 ATF_TP_ADD_TC(tp, sbuf_new_negative_test); 205#ifdef HAVE_SBUF_SET_FLAGS 206 ATF_TP_ADD_TC(tp, sbuf_set_flags_test); 207#endif 208#endif 209 ATF_TP_ADD_TC(tp, sbuf_setpos_test); 210 211 return (atf_no_error()); 212} 213