dlls/msvcrt/tests/scanf.c

/*
 * Unit test suite for *scanf functions.
 *
 * Copyright 2002 Uwe Bonnes
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <stdio.h>

#include "wine/test.h"

static void test_sscanf( void )
{
    char buffer[100], buffer1[100];
    char format[20];
    int result, ret;
    float res1= -82.6267f, res2= 27.76f, res11, res12;
    static const char pname[]=" St. Petersburg, Florida\n";
    int hour=21,min=59,sec=20;
    int  number,number_so_far;


    /* check EOF */
    strcpy(buffer,"");
    ret = sscanf(buffer, "%d", &result);
    ok( ret == EOF,"sscanf returns %x instead of %x\n", ret, EOF );

    /* check %x */
    strcpy(buffer,"0x519");
    ok( sscanf(buffer, "%x", &result) == 1, "sscanf failed\n"  );
    ok( result == 0x519,"sscanf reads %x instead of %x\n", result, 0x519 );

    strcpy(buffer,"0x51a");
    ok( sscanf(buffer, "%x", &result) == 1, "sscanf failed\n" );
    ok( result == 0x51a ,"sscanf reads %x instead of %x\n", result, 0x51a );

    strcpy(buffer,"0x51g");
    ok( sscanf(buffer, "%x", &result) == 1, "sscanf failed\n" );
    ok( result == 0x51, "sscanf reads %x instead of %x\n", result, 0x51 );

    /* check % followed by any char */
    strcpy(buffer,"\"%12@");
    strcpy(format,"%\"%%%d%@");  /* work around gcc format check */
    ok( sscanf(buffer, format, &result) == 1, "sscanf failed\n" );
    ok( result == 12, "sscanf reads %x instead of %x\n", result, 12 );

    /* Check float */
    ret = sprintf(buffer,"%f %f",res1, res2);
    ret = sscanf(buffer,"%f%f",&res11, &res12);
    ok( (res11 == res1) && (res12 == res2), "Error reading floats\n");

    /* check strings */
    ret = sprintf(buffer," %s", pname);
    ret = sscanf(buffer,"%*c%[^\n]",buffer1);
    ok( ret == 1, "Error with format \"%s\"\n","%*c%[^\n]");
    ok( strncmp(pname,buffer1,strlen(buffer1)) == 0, "Error with \"%s\" \"%s\"\n",pname, buffer1);

    ret = sscanf("abcefgdh","%*[a-cg-e]%c",&buffer[0]);
    ok( ret == 1, "Error with format \"%s\"\n","%*[a-cg-e]%c");
    ok( buffer[0] == 'd', "Error with \"abcefgdh\" \"%c\"\n", buffer[0]);

    ret = sscanf("abcefgdh","%*[a-cd-dg-e]%c",&buffer[0]);
    ok( ret == 1, "Error with format \"%s\"\n","%*[a-cd-dg-e]%c");
    ok( buffer[0] == 'h', "Error with \"abcefgdh\" \"%c\"\n", buffer[0]);

    /* check digits */
    ret = sprintf(buffer,"%d:%d:%d",hour,min,sec);
    ret = sscanf(buffer,"%d%n",&number,&number_so_far);
    ok(ret == 1 , "problem with format arg \"%%d%%n\"\n");
    ok(number == hour,"Read wrong arg %d instead of %d\n",number, hour);
    ok(number_so_far == 2,"Read wrong arg for \"%%n\" %d instead of 2\n",number_so_far);

    ret = sscanf(buffer+2,"%*c%n",&number_so_far);
    ok(ret == 0 , "problem with format arg \"%%*c%%n\"\n");
    ok(number_so_far == 1,"Read wrong arg for \"%%n\" %d instead of 2\n",number_so_far);

    /* Check %i according to bug 1878 */
    strcpy(buffer,"123");
    ret = sscanf(buffer, "%i", &result);
    ok( ret == 1 , "Wrong number of arguments read\n");
    ok(result == 123, "Wrong number read\n");
    ret = sscanf(buffer, "%d", &result);
    ok( ret == 1 , "Wrong number of arguments read\n");
    ok(result == 123, "Wrong number read\n");
}

static void test_sprintf( void )
{
    char buffer[100];
    const char *I64d = "%I64d";
    double pnumber=789456123;
    sprintf(buffer,"%+#23.15e",pnumber);
    todo_wine
      {
	ok(strstr(buffer,"e+008") != 0,"Sprintf different \"%s\"\n",buffer);
      }
    sprintf(buffer,I64d,((ULONGLONG)0xffffffff)*0xffffffff);
    todo_wine
      {
	ok(strlen(buffer) == 19,"Problem with long long \"%s\"\n",buffer);
      }
}

static void test_snprintf (void)
{
    struct snprintf_test {
        const char *format;
        int expected;
        struct {
            int retval;
            int render;
        } todo;
    };
    /* Pre-2.1 libc behaviour, not C99 compliant. */
    const struct snprintf_test tests[] = {{"short", 5, {0, 0}},
                                          {"justfit", 7, {0, 0}},
                                          {"justfits", 8, {0, 1}},
                                          {"muchlonger", -1, {1, 1}}};
    char buffer[8];
    const int bufsiz = sizeof buffer;
    unsigned int i;

    for (i = 0; i < sizeof tests / sizeof tests[0]; i++) {
        const char *fmt  = tests[i].format;
        const int expect = tests[i].expected;
        const int n      = _snprintf (buffer, bufsiz, fmt);
        const int valid  = n < 0 ? bufsiz : (n == bufsiz ? n : n+1);

        todo (tests[i].todo.retval ? "wine" : "none")
            ok (n == expect, "\"%s\": expected %d, returned %d\n",
                fmt, expect, n);
        todo (tests[i].todo.render ? "wine" : "none")
            ok (!memcmp (fmt, buffer, valid),
                "\"%s\": rendered \"%.*s\"\n", fmt, valid, buffer);
    };
}

START_TEST(scanf)
{
    test_sscanf();
    test_sprintf();
    test_snprintf();
}