iPXE
Functions | Variables
string_test.c File Reference

String self-tests. More...

#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <ipxe/string.h>
#include <ipxe/test.h>

Go to the source code of this file.

Functions

 FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
static void string_test_exec (void)
 Perform string self-tests.

Variables

struct self_test string_test __self_test
 String self-test.

Detailed Description

String self-tests.

memcpy() tests are handled separately

Definition in file string_test.c.


Function Documentation

FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL  )
static void string_test_exec ( void  ) [static]

Perform string self-tests.

Definition at line 48 of file string_test.c.

References dest, digit_value(), free, memchr(), memcmp(), memcpy(), memmove(), memset(), memswap(), normal, NULL, ok, snprintf(), src, strcasecmp(), strcat(), strchr(), strcmp(), strcpy(), strdup(), strlen(), strncmp(), strncpy(), strndup(), strnlen(), strrchr(), strstr(), strtoul(), test, and zero.

                                      {

        /* Test strlen() */
        ok ( strlen ( "" ) == 0 );
        ok ( strlen ( "Hello" ) == 5 );
        ok ( strlen ( "Hello world!" ) == 12 );
        ok ( strlen ( "Hello\0world!" ) == 5 );

        /* Test strnlen() */
        ok ( strnlen ( "", 0 ) == 0 );
        ok ( strnlen ( "", 10 ) == 0 );
        ok ( strnlen ( "Hello", 0 ) == 0 );
        ok ( strnlen ( "Hello", 3 ) == 3 );
        ok ( strnlen ( "Hello", 5 ) == 5 );
        ok ( strnlen ( "Hello", 16 ) == 5 );
        ok ( strnlen ( "Hello world!", 5 ) == 5 );
        ok ( strnlen ( "Hello world!", 11 ) == 11 );
        ok ( strnlen ( "Hello world!", 16 ) == 12 );

        /* Test strchr() */
        ok ( strchr ( "", 'a' ) == NULL );
        ok ( *(strchr ( "Testing", 'e' )) == 'e' );
        ok ( *(strchr ( "Testing", 'g' )) == 'g' );
        ok ( strchr ( "Testing", 'x' ) == NULL );

        /* Test strrchr() */
        ok ( strrchr ( "", 'a' ) == NULL );
        ok ( *(strrchr ( "Haystack", 'a' )) == 'a' );
        ok ( *(strrchr ( "Haystack", 'k' )) == 'k' );
        ok ( strrchr ( "Haystack", 'x' ) == NULL );

        /* Test memchr() */
        ok ( memchr ( "", '\0', 0 ) == NULL );
        ok ( *((uint8_t *)memchr ( "post\0null", 'l', 9 )) == 'l' );
        ok ( *((uint8_t *)memchr ( "post\0null", '\0', 9 )) == '\0' );
        ok ( memchr ( "thingy", 'z', 6 ) == NULL );

        /* Test strcmp() */
        ok ( strcmp ( "", "" ) == 0 );
        ok ( strcmp ( "Hello", "Hello" ) == 0 );
        ok ( strcmp ( "Hello", "hello" ) != 0 );
        ok ( strcmp ( "Hello", "Hello world!" ) != 0 );
        ok ( strcmp ( "Hello world!", "Hello" ) != 0 );

        /* Test strncmp() */
        ok ( strncmp ( "", "", 0 ) == 0 );
        ok ( strncmp ( "", "", 15 ) == 0 );
        ok ( strncmp ( "Goodbye", "Goodbye", 16 ) == 0 );
        ok ( strncmp ( "Goodbye", "Hello", 16 ) != 0 );
        ok ( strncmp ( "Goodbye", "Goodbye world", 32 ) != 0 );
        ok ( strncmp ( "Goodbye", "Goodbye world", 7 ) == 0 );

        /* Test strcasecmp() */
        ok ( strcasecmp ( "", "" ) == 0 );
        ok ( strcasecmp ( "Uncle Jack", "Uncle jack" ) == 0 );
        ok ( strcasecmp ( "Uncle Jack", "Uncle" ) != 0 );
        ok ( strcasecmp ( "Uncle", "Uncle Jack" ) != 0 );
        ok ( strcasecmp ( "not", "equal" ) != 0 );

        /* Test memcmp() */
        ok ( memcmp ( "", "", 0 ) == 0 );
        ok ( memcmp ( "Foo", "Foo", 3 ) == 0 );
        ok ( memcmp ( "Foo", "Bar", 3 ) != 0 );

        /* Test strstr() */
        {
                const char haystack[] = "find me!";
                char *found;

                found = strstr ( haystack, "find" );
                ok ( found == &haystack[0] );
                found = strstr ( haystack, "me" );
                ok ( found == &haystack[5] );
                found = strstr ( haystack, "me." );
                ok ( found == NULL );
        }

        /* Test memset() */
        {
                static uint8_t test[7] = { '>', 1, 1, 1, 1, 1, '<' };
                static const uint8_t expected[7] = { '>', 0, 0, 0, 0, 0, '<' };
                memset ( ( test + 1 ), 0, ( sizeof ( test ) - 2 ) );
                ok ( memcmp ( test, expected, sizeof ( test ) ) == 0 );
        }
        {
                static uint8_t test[4] = { '>', 0, 0, '<' };
                static const uint8_t expected[4] = { '>', 0xeb, 0xeb, '<' };
                memset ( ( test + 1 ), 0xeb, ( sizeof ( test ) - 2 ) );
                ok ( memcmp ( test, expected, sizeof ( test ) ) == 0 );
        }

        /* Test memmove() */
        {
                static uint8_t test[11] =
                        { '>', 1, 2, 3, 4, 5, 6, 7, 8, 9, '<' };
                static const uint8_t expected[11] =
                        { '>', 3, 4, 5, 6, 7, 8, 7, 8, 9, '<' };
                memmove ( ( test + 1 ), ( test + 3 ), 6 );
                ok ( memcmp ( test, expected, sizeof ( test ) ) == 0 );
        }
        {
                static uint8_t test[12] =
                        { '>', 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, '<' };
                static const uint8_t expected[12] =
                        { '>', 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, '<' };
                memmove ( ( test + 6 ), ( test + 1 ), 5 );
                ok ( memcmp ( test, expected, sizeof ( test ) ) == 0 );
        }

        /* Test memswap() */
        {
                static uint8_t test[8] =
                        { '>', 1, 2, 3, 7, 8, 9, '<' };
                static const uint8_t expected[8] =
                        { '>', 7, 8, 9, 1, 2, 3, '<' };
                memswap ( ( test + 1 ), ( test + 4 ), 3 );
                ok ( memcmp ( test, expected, sizeof ( test ) ) == 0 );
        }

        /* Test strdup() */
        {
                const char *orig = "testing testing";
                char *dup = strdup ( orig );
                ok ( dup != NULL );
                ok ( dup != orig );
                ok ( strcmp ( dup, orig ) == 0 );
                free ( dup );
        }

        /* Test strndup() */
        {
                const char *normal = "testing testing";
                const char unterminated[6] = { 'h', 'e', 'l', 'l', 'o', '!' };
                char *dup;
                dup = strndup ( normal, 32 );
                ok ( dup != NULL );
                ok ( dup != normal );
                ok ( strcmp ( dup, normal ) == 0 );
                free ( dup );
                dup = strndup ( normal, 4 );
                ok ( dup != NULL );
                ok ( strcmp ( dup, "test" ) == 0 );
                free ( dup );
                dup = strndup ( unterminated, 5 );
                ok ( dup != NULL );
                ok ( strcmp ( dup, "hello" ) == 0 );
                free ( dup );
        }

        /* Test strcpy() */
        {
                const char longer[7] = "copyme";
                const char shorter[3] = "hi";
                char dest[7];
                char *copy;

                copy = strcpy ( dest, longer );
                ok ( copy == dest );
                ok ( memcmp ( dest, longer, 7 ) == 0 );
                copy = strcpy ( dest, shorter );
                ok ( copy == dest );
                ok ( memcmp ( dest, shorter, 3 ) == 0 );
                ok ( memcmp ( ( dest + 3 ), ( longer + 3 ), 4 ) == 0 );
        }

        /* Test strncpy() */
        {
                const char src[5] = "copy";
                const char orig[8] = { 'x', 'x', 'x', 'x', 'x', 'x', 'x', 'x' };
                const char zero[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
                char dest[8];
                char *copy;

                memcpy ( dest, orig, sizeof ( dest ) );
                copy = strncpy ( dest, src, 5 );
                ok ( copy == dest );
                ok ( memcmp ( dest, src, 5 ) == 0 );
                ok ( memcmp ( dest + 5, orig + 5, 3 ) == 0 );
                memcpy ( dest, orig, sizeof ( dest ) );
                copy = strncpy ( dest, src, 4 );
                ok ( copy == dest );
                ok ( memcmp ( dest, src, 4 ) == 0 );
                ok ( memcmp ( dest + 4, orig + 4, 4 ) == 0 );
                memcpy ( dest, orig, sizeof ( dest ) );
                copy = strncpy ( dest, src, 8 );
                ok ( copy == dest );
                ok ( memcmp ( dest, src, 5 ) == 0 );
                ok ( memcmp ( dest + 5, zero + 5, 3 ) == 0 );
                memcpy ( dest, orig, sizeof ( dest ) );
                copy = strncpy ( dest, "", 8 );
                ok ( copy == dest );
                ok ( memcmp ( dest, zero, 8 ) == 0 );
        }

        /* Test strcat() */
        {
                char buf[16] = "append";
                char *dest;

                dest = strcat ( buf, " this" );
                ok ( dest == buf );
                ok ( strcmp ( buf, "append this" ) == 0 );
        }

        /* Test digit_value() */
        {
                unsigned int i;
                char buf[2];
                for ( i = 0 ; i < 16 ; i++ ) {
                        snprintf ( buf, sizeof ( buf ), "%x", i );
                        ok ( digit_value ( buf[0] ) == i );
                        snprintf ( buf, sizeof ( buf ), "%X", i );
                        ok ( digit_value ( buf[0] ) == i );
                }
                ok ( digit_value ( 0 ) >= 16 );
                ok ( digit_value ( 9 ) >= 16 );
                ok ( digit_value ( '0' - 1 ) >= 16 );
                ok ( digit_value ( '9' + 1 ) >= 16 );
                ok ( digit_value ( 'A' - 1 ) >= 16 );
                ok ( digit_value ( 'F' + 1 ) >= 16 );
                ok ( digit_value ( 'a' - 1 ) >= 16 );
                ok ( digit_value ( 'f' + 1 ) >= 16 );
        }

        /* Test strtoul() */
        ok ( strtoul ( "12345", NULL, 0 ) == 12345UL );
        ok ( strtoul ( "  741", NULL, 10 ) == 741UL );
        ok ( strtoul ( " 555a", NULL, 0 ) == 555UL );
        ok ( strtoul ( " 555a", NULL, 16 ) == 0x555aUL );
        ok ( strtoul ( "-12", NULL, 0 ) == -12UL );
        ok ( strtoul ( "+3", NULL, 0 ) == 3UL );
        ok ( strtoul ( "721", NULL, 0 ) == 721UL );
        ok ( strtoul ( "721", NULL, 8 ) == 0721UL );
        ok ( strtoul ( "0721", NULL, 0 ) == 0721UL );
        ok ( strtoul ( "", NULL, 0 ) == 0UL );
        ok ( strtoul ( "\t0xcAfe", NULL, 0 ) == 0xcafeUL );
        ok ( strtoul ( "0xffffffff", NULL, 0 ) == 0xffffffffUL );
        {
                static const char string[] = "123aHa.world";
                char *endp;
                ok ( strtoul ( string, &endp, 0 ) == 123UL );
                ok ( endp == &string[3] );
                ok ( strtoul ( string, &endp, 16 ) == 0x123aUL );
                ok ( endp == &string[4] );
                ok ( strtoul ( string, &endp, 26 ) ==
                     ( ( ( ( ( 1 * 26 + 2 ) * 26 + 3 ) * 26 + 10 ) * 26
                         + 17 ) * 26 + 10 ) );
                ok ( endp == &string[6] );
        }
}

Variable Documentation

struct self_test string_test __self_test
Initial value:
 {
        .name = "string",
        .exec = string_test_exec,
}

String self-test.

Definition at line 300 of file string_test.c.