1 /* $OpenBSD: fmt_test.c,v 1.11 2016/08/14 23:08:09 guenther Exp $ */ 2 3 /* 4 * Combined tests for fmt_scaled and scan_scaled. 5 * Ian Darwin, January 2001. Public domain. 6 */ 7 8 #include <stdio.h> 9 #include <stdlib.h> 10 #include <string.h> 11 #include <sys/types.h> 12 #include <errno.h> 13 14 #include <util.h> 15 16 static int fmt_test(void); 17 static int scan_test(void); 18 19 static void print_errno(int e); 20 static int assert_int(int testnum, int checknum, int expect, int result); 21 static int assert_errno(int testnum, int checknum, int expect, int result); 22 static int assert_llong(int testnum, int checknum, long long expect, long long result); 23 static int assert_str(int testnum, int checknum, char * expect, char * result); 24 25 extern char *__progname; 26 static int verbose = 0; 27 28 __dead static void usage(int stat) 29 { 30 fprintf(stderr, "usage: %s [-v]\n", __progname); 31 exit(stat); 32 } 33 34 int 35 main(int argc, char **argv) 36 { 37 extern char *optarg; 38 extern int optind; 39 int i, ch; 40 41 while ((ch = getopt(argc, argv, "hv")) != -1) { 42 switch (ch) { 43 case 'v': 44 verbose = 1; 45 break; 46 case 'h': 47 usage(0); 48 case '?': 49 default: 50 usage(1); 51 } 52 } 53 argc -= optind; 54 argv += optind; 55 56 if (verbose) 57 printf("Starting fmt_test\n"); 58 i = fmt_test(); 59 if (verbose) 60 printf("Starting scan_test\n"); 61 i += scan_test(); 62 if (i) { 63 printf("*** %d errors in libutil/fmt_scaled tests ***\n", i); 64 } else { 65 if (verbose) 66 printf("Tests done; no unexpected errors\n"); 67 } 68 return i; 69 } 70 71 /************** tests for fmt_scaled *******************/ 72 73 static struct { /* the test cases */ 74 long long input; 75 char *expect; 76 int err; 77 } ddata[] = { 78 { 0, "0B", 0 }, 79 { 1, "1B", 0 }, 80 { -1, "-1B", 0 }, 81 { 100, "100B", 0}, 82 { -100, "-100B", 0}, 83 { 999, "999B", 0 }, 84 { 1000, "1000B", 0 }, 85 { 1023, "1023B", 0 }, 86 { -1023, "-1023B", 0 }, 87 { 1024, "1.0K", 0 }, 88 { 1025, "1.0K", 0 }, 89 { 1234, "1.2K", 0 }, 90 { -1234, "-1.2K", 0 }, 91 { 1484, "1.4K", 0 }, /* rounding boundary, down */ 92 { 1485, "1.5K", 0 }, /* rounding boundary, up */ 93 { -1484, "-1.4K", 0 }, /* rounding boundary, down */ 94 { -1485, "-1.5K", 0 }, /* rounding boundary, up */ 95 { 1536, "1.5K", 0 }, 96 { 1786, "1.7K", 0 }, 97 { 1800, "1.8K", 0 }, 98 { 2000, "2.0K", 0 }, 99 { 123456, "121K", 0 }, 100 { 578318, "565K", 0 }, 101 { 902948, "882K", 0 }, 102 { 1048576, "1.0M", 0}, 103 { 1048628, "1.0M", 0}, 104 { 1049447, "1.0M", 0}, 105 { -102400, "-100K", 0}, 106 { -103423, "-101K", 0 }, 107 { 7299072, "7.0M", 0 }, 108 { 409478144L, "391M", 0 }, 109 { -409478144L, "-391M", 0 }, 110 { 999999999L, "954M", 0 }, 111 { 1499999999L, "1.4G", 0 }, 112 { 12475423744LL, "11.6G", 0}, 113 { 1LL<<61, "2.0E", 0 }, 114 { 1LL<<62, "4.0E", 0 }, 115 { 1LL<<63, "", ERANGE }, 116 { 1099512676352LL, "1.0T", 0} 117 }; 118 # define DDATA_LENGTH (sizeof ddata/sizeof *ddata) 119 120 static int 121 fmt_test(void) 122 { 123 unsigned int i, e, errs = 0; 124 int ret; 125 char buf[FMT_SCALED_STRSIZE]; 126 127 for (i = 0; i < DDATA_LENGTH; i++) { 128 strlcpy(buf, "UNSET", FMT_SCALED_STRSIZE); 129 ret = fmt_scaled(ddata[i].input, buf); 130 e = errno; 131 if (verbose) { 132 printf("%lld --> %s (%d)", ddata[i].input, buf, ret); 133 if (ret == -1) 134 print_errno(e); 135 printf("\n"); 136 } 137 if (ret == -1) 138 errs += assert_int(i, 1, ret, ddata[i].err == 0 ? 0 : -1); 139 if (ddata[i].err) 140 errs += assert_errno(i, 2, ddata[i].err, errno); 141 else 142 errs += assert_str(i, 3, ddata[i].expect, buf); 143 } 144 145 return errs; 146 } 147 148 /************** tests for scan_scaled *******************/ 149 150 151 #define IMPROBABLE (-42) 152 153 extern int errno; 154 155 struct { /* the test cases */ 156 char *input; 157 long long result; 158 int err; 159 } sdata[] = { 160 { "0", 0, 0 }, 161 { "123", 123, 0 }, 162 { "1k", 1024, 0 }, /* lower case */ 163 { "100.944", 100, 0 }, /* should --> 100 (truncates fraction) */ 164 { "10099", 10099LL, 0 }, 165 { "1M", 1048576LL, 0 }, 166 { "1.1M", 1153433LL, 0 }, /* fractions */ 167 { "1.111111111111111111M", 1165084LL, 0 }, /* fractions */ 168 { "1.55M", 1625292LL, 0 }, /* fractions */ 169 { "1.9M", 1992294LL, 0 }, /* fractions */ 170 { "-2K", -2048LL, 0 }, /* negatives */ 171 { "-2.2K", -2252LL, 0 }, /* neg with fract */ 172 { "4.5k", 4608, 0 }, 173 { "4.5555555555555555K", 4664, 0 }, 174 { "4.5555555555555555555K", 4664, 0 }, /* handle enough digits? */ 175 { "4.555555555555555555555555555555K", 4664, 0 }, /* ignores extra digits? */ 176 { "1G", 1073741824LL, 0 }, 177 { "G", 0, 0 }, /* should == 0G? */ 178 { "1234567890", 1234567890LL, 0 }, /* should work */ 179 { "1.5E", 1729382256910270464LL, 0 }, /* big */ 180 { "32948093840918378473209480483092", 0, ERANGE }, /* too big */ 181 { "329480938409.8378473209480483092", 0, ERANGE }, /* fraction too big */ 182 { "1.5Q", 0, EINVAL }, /* invalid multiplier */ 183 { "1ab", 0, EINVAL }, /* ditto */ 184 { "3&", 0, EINVAL }, /* ditto */ 185 { "5.0e3", 0, EINVAL }, /* digits after */ 186 { "5.0E3", 0, EINVAL }, /* ditto */ 187 { "1..0", 0, EINVAL }, /* bad format */ 188 { "", 0, 0 }, /* boundary */ 189 { "--1", -1, EINVAL }, 190 { "++42", -1, EINVAL }, 191 /* { "9223372036854775808", -9223372036854775808LL, 0 }, */ /* XXX */ 192 }; 193 # define SDATA_LENGTH (sizeof sdata/sizeof *sdata) 194 195 static void 196 print_errno(int e) 197 { 198 switch(e) { 199 case EINVAL: printf("EINVAL"); break; 200 case EDOM: printf("EDOM"); break; 201 case ERANGE: printf("ERANGE"); break; 202 default: printf("errno %d", errno); 203 } 204 } 205 206 /** Print one result */ 207 static void 208 print(char *input, long long result, int ret) 209 { 210 int e = errno; 211 printf("\"%10s\" --> %lld (%d)", input, result, ret); 212 if (ret == -1) { 213 printf(" -- "); 214 print_errno(e); 215 } 216 printf("\n"); 217 } 218 219 static int 220 scan_test(void) 221 { 222 unsigned int i, errs = 0, e; 223 int ret; 224 long long result; 225 226 for (i = 0; i < SDATA_LENGTH; i++) { 227 result = IMPROBABLE; 228 /* printf("Calling scan_scaled(%s, ...)\n", sdata[i].input); */ 229 ret = scan_scaled(sdata[i].input, &result); 230 e = errno; /* protect across printfs &c. */ 231 if (verbose) 232 print(sdata[i].input, result, ret); 233 errno = e; 234 if (ret == -1) 235 errs += assert_int(i, 1, ret, sdata[i].err == 0 ? 0 : -1); 236 errno = e; 237 if (sdata[i].err) 238 errs += assert_errno(i, 2, sdata[i].err, errno); 239 else 240 errs += assert_llong(i, 3, sdata[i].result, result); 241 } 242 return errs; 243 } 244 245 /************** common testing stuff *******************/ 246 247 static int 248 assert_int(int testnum, int check, int expect, int result) 249 { 250 if (expect == result) 251 return 0; 252 printf("** FAILURE: test %d check %d, expect %d, result %d **\n", 253 testnum, check, expect, result); 254 return 1; 255 } 256 257 static int 258 assert_errno(int testnum, int check, int expect, int result) 259 { 260 if (expect == result) 261 return 0; 262 printf("** FAILURE: test %d check %d, expect ", 263 testnum, check); 264 print_errno(expect); 265 printf(", got "); 266 print_errno(result); 267 printf(" **\n"); 268 return 1; 269 } 270 271 static int 272 assert_llong(int testnum, int check, long long expect, long long result) 273 { 274 if (expect == result) 275 return 0; 276 printf("** FAILURE: test %d check %d, expect %lld, result %lld **\n", 277 testnum, check, expect, result); 278 return 1; 279 } 280 281 static int 282 assert_str(int testnum, int check, char * expect, char * result) 283 { 284 if (strcmp(expect, result) == 0) 285 return 0; 286 printf("** FAILURE: test %d check %d, expect %s, result %s **\n", 287 testnum, check, expect, result); 288 return 1; 289 } 290