mdw@git.distorted.org.uk Git - mLib/blob - struct/t/dstr-putf-test.c

   1 /* -*-c-*-
   2  *
   3  * Test driver for universal hashing
   4  *
   5  * (c) 2009 Straylight/Edgeware
   6  */
   7
   8 /*----- Licensing notice --------------------------------------------------*
   9  *
  10  * This file is part of the mLib utilities library.
  11  *
  12  * mLib is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU Library General Public License as
  14  * published by the Free Software Foundation; either version 2 of the
  15  * License, or (at your option) any later version.
  16  *
  17  * mLib is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU Library General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU Library General Public
  23  * License along with mLib; if not, write to the Free
  24  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  25  * MA 02111-1307, USA.
  26  */
  27
  28 /*----- Header files ------------------------------------------------------*/
  29
  30 #include "config.h"
  31
  32 #include <assert.h>
  33 #include <float.h>
  34 #include <stdarg.h>
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <string.h>
  38
  39 #include "dstr.h"
  40 #include "macros.h"
  41 #include "report.h"
  42
  43 #include "tvec.h"
  44 #include "tvec-adhoc.h"
  45 #include "tvec-types.h"
  46
  47 /*----- Static variables --------------------------------------------------*/
  48
  49 static struct tvec_state tvstate;
  50 static dstr d = DSTR_INIT;
  51 static char strbuf[1024];
  52
  53 /*----- Utilities ---------------------------------------------------------*/
  54
  55 #define TESTGROUP(name) TVEC_TESTGROUP_TAG(grp, &tvstate, name)
  56
  57 static PRINTF_LIKE(1, 2) int format(const char *fmt, ...)
  58 {
  59   va_list ap;
  60   int n;
  61
  62   va_start(ap, fmt);
  63   dstr_reset(&d);
  64   n = dstr_vputf(&d, fmt, &ap);
  65   va_end(ap);
  66   return (n);
  67 }
  68
  69 static PRINTF_LIKE(1, 2) void prepare(const char *fmt, ...)
  70 {
  71   va_list ap;
  72   int n;
  73
  74   va_start(ap, fmt);
  75 #ifdef HAVE_SNPRINTF
  76   n = vsnprintf(strbuf, sizeof(strbuf), fmt, ap);
  77 #else
  78   n = vsprintf(strbuf, fmt, ap);
  79 #endif
  80   assert(0 <= n && n < sizeof(strbuf));
  81 }
  82
  83 #define TEST_KNOWN(fmtargs, want) do {                                  \
  84   int n; n = format fmtargs;                                            \
  85   tvec_claimeq_int(&tvstate, n, strlen(want),                           \
  86                    __FILE__, __LINE__, "format " #fmtargs);             \
  87   tvec_claimeq_text(&tvstate, d.buf, d.len, want, strlen(want), \
  88                     __FILE__, __LINE__, "format " #fmtargs);    \
  89 } while (0)
  90
  91 #define TEST_REF(fmtargs) do {                                          \
  92   int n = format fmtargs;                                               \
  93   prepare fmtargs;                                                      \
  94   tvec_claimeq_int(&tvstate, n, strlen(strbuf),                         \
  95                    __FILE__, __LINE__, "format " #fmtargs);             \
  96   tvec_claimeq_text(&tvstate, d.buf, d.len, strbuf, strlen(strbuf),     \
  97                     __FILE__, __LINE__, "format " #fmtargs);            \
  98 } while (0)
  99
 100 #define LENGTHY                                                         \
 101   "This is a rather longer string than the code is expecting: will it fit?"
 102
 103 /*----- Main program ------------------------------------------------------*/
 104
 105 int main(int argc, char *argv[])
 106 {
 107   int argpos;
 108
 109   tvec_parseargs(argc, argv, &tvstate, &argpos, &tvec_adhocconfig);
 110   if (argpos < argc) die(2, "no input files expected");
 111   tvec_adhoc(&tvstate);
 112
 113   TESTGROUP("basics") {
 114     TEST_KNOWN(("Hello, world!"), "Hello, world!");
 115     TEST_KNOWN(("just a ->%%<- sign"), "just a ->%<- sign");
 116   }
 117
 118   TESTGROUP("integers") {
 119     TEST_KNOWN(("Testing, testing, %d, %d, %d.", 1, 2, 3),
 120                "Testing, testing, 1, 2, 3.");
 121     TEST_KNOWN(("->%5d<-", 138), "->  138<-");
 122     TEST_KNOWN(("->%*d<-", 5, 138), "->  138<-");
 123     TEST_KNOWN(("->%-*d<-", 5, 138), "->138  <-");
 124     TEST_KNOWN(("->%*d<-", -5, 138), "->138  <-");
 125     TEST_KNOWN(("->%-*d<-", -5, 138), "->138  <-");
 126   }
 127
 128   TESTGROUP("strings") {
 129     TEST_KNOWN(("->%.*s<-", 5, "truncate me"), "->trunc<-");
 130     TEST_KNOWN(("->%.*s<-", -5, "don't truncate me"),
 131                "->don't truncate me<-");
 132     TEST_KNOWN(("Truncation indirect: ->%.*s<-", 10,
 133                 "a long string to be chopped"),
 134                "Truncation indirect: ->a long str<-");
 135   }
 136
 137   TESTGROUP("combinations") {
 138     TEST_KNOWN(("%08lx:%s", 0x65604204ul, "tripe-ec"), "65604204:tripe-ec");
 139     TEST_REF(("big float: ->%f<- and integer %d\n", DBL_MAX, 42));
 140   }
 141
 142   TESTGROUP("argument-order") {
 143     TEST_KNOWN(("Testing, testing, %3$d, %2$d, %1$d.", 3, 2, 1),
 144                "Testing, testing, 1, 2, 3.");
 145     TEST_KNOWN(("Truncation indirect: ->%1$.*2$s<-",
 146                 "a long string to be chopped", 10),
 147                "Truncation indirect: ->a long str<-");
 148   }
 149
 150   TESTGROUP("misc")
 151     TEST_KNOWN(("%s", LENGTHY), LENGTHY);
 152
 153   return (tvec_end(&tvstate));
 154 }
 155
 156 /*----- That's all, folks -------------------------------------------------*/