ali@0: #include <stdlib.h>
ali@0: #include <stdio.h>
ali@0: #include <string.h>
ali@0: #include <unistd.h>
ali@0: #include <errno.h>
ali@0: #ifdef WIN32
ali@0: #include <io.h>
ali@0: #include <fcntl.h>
ali@0: #endif
ali@0: #include <gclib/gclib.h>
ali@0: #include "testcase.h"
ali@0: 
ali@0: #if !HAVE_MKSTEMP
ali@0: /*
ali@0:  * An insecure implementation of mkstemp(), for those platforms that
ali@0:  * don't support it.
ali@0:  */
ali@0: int mkstemp(char *template)
ali@0: {
ali@0:     int fd;
ali@0:     char *s;
ali@0:     for(;;)
ali@0:     {
ali@0: 	s=str_dup(template);
ali@0: 	mktemp(s);
ali@0: 	if (!*s)
ali@0: 	{
ali@0: 	    errno=EEXIST;
ali@0: 	    mem_free(s);
ali@0: 	    return -1;
ali@0: 	}
ali@0: 	fd=open(s,O_RDWR|O_CREAT|O_EXCL,0600);
ali@0: 	if (fd>0)
ali@0: 	{
ali@0: 	    strcpy(template,s);
ali@0: 	    mem_free(s);
ali@0: 	    return fd;
ali@0: 	}
ali@0: 	else
ali@0: 	    mem_free(s);
ali@0:     }
ali@0: }
ali@0: #endif	/* !HAVE_MKSTEMP */
ali@0: 
ali@0: /*
ali@0:  * As write(), but always convert NL to CR NL.
ali@0:  */
ali@0: static size_t write_text(int fd,const char *buf,size_t count)
ali@0: {
ali@0:     size_t i;
ali@0:     FILE *fp;
ali@0:     fd=dup(fd);
ali@0:     if (fd<0)
ali@0: 	return -1;
ali@0: #ifdef WIN32
ali@0:     if (_setmode(fd,_O_BINARY)<0)
ali@0:     {
ali@0: 	close(fd);
ali@0: 	return -1;
ali@0:     }
ali@0: #endif
ali@0:     fp=fdopen(fd,"wb");
ali@0:     if (!fp)
ali@0:     {
ali@0: 	close(fd);
ali@0: 	return -1;
ali@0:     }
ali@0:     for(i=0;i<count;i++)
ali@0:     {
ali@0: 	if (buf[i]=='\n')
ali@0: 	    if (putc('\r',fp)==EOF)
ali@0: 	    {
ali@0: 		(void)fclose(fp);
ali@0: 		return -1;
ali@0: 	    }
ali@0: 	if (putc(buf[i],fp)==EOF)
ali@0: 	{
ali@0: 	    (void)fclose(fp);
ali@0: 	    return -1;
ali@0: 	}
ali@0:     }
ali@0:     if (fclose(fp))
ali@0: 	return -1;
ali@0:     return count;
ali@0: }
ali@0: 
ali@0: /*
ali@0:  * Return the length (in bytes) or any common prefix between s1 and s2.
ali@0:  */
ali@0: size_t common_prefix_length(const char *s1,const char *s2)
ali@0: {
ali@0:     size_t i;
ali@0:     for(i=0;s1[i] && s2[i] && s1[i]==s2[i];i++)
ali@0: 	;
ali@0:     return i;
ali@0: }
ali@0: 
ali@0: /*
ali@0:  * Run a testcase, returning FALSE on fail or error and
ali@0:  * TRUE on pass or expected-fail.
ali@0:  * Suitable message(s) will be printed in all cases.
ali@0:  */
ali@0: boolean testcase_run(Testcase *testcase)
ali@0: {
ali@0:     boolean r;
ali@0:     int fd,exit_status,col;
ali@0:     size_t n,pos,offset,header_len;
ali@0:     FILE *fp;
ali@0:     char input[]="TEST-XXXXXX";
ali@0:     char *endp,*bol;
ali@0:     char *command[3];
ali@0:     String *expected,*report;
ali@0:     char *output;
ali@0:     fd=mkstemp(input);
ali@0:     if (testcase->input)
ali@0: 	n=strlen(testcase->input);
ali@0:     else
ali@0: 	n=0;
ali@0:     if (n && write_text(fd,testcase->input,n)!=n)
ali@0:     {
ali@0: 	perror(input);
ali@0: 	close(fd);
ali@0: 	(void)remove(input);
ali@0: 	return FALSE;
ali@0:     }
ali@0:     close(fd);
ali@0:     command[0]=getenv("GUTCHECK");
ali@0:     if (!command[0])
ali@0: 	command[0]="." GC_DIR_SEPARATOR_S "gutcheck";
ali@0:     command[1]=input;
ali@0:     command[2]=NULL;
ali@0:     if (testcase->expected)
ali@0: 	r=spawn_sync(command,&output,&exit_status);
ali@0:     else
ali@0:     {
ali@0: 	r=spawn_sync(command,NULL,&exit_status);
ali@0: 	output=NULL;
ali@0:     }
ali@0:     (void)remove(input);
ali@0:     if (!r)
ali@0: 	return FALSE;
ali@0:     if (testcase->expected)
ali@0:     {
ali@0: 	expected=string_new("\n\nFile: ");
ali@0: 	string_append(expected,input);
ali@0: 	string_append(expected,"\n\n\n");
ali@0: 	header_len=expected->len;
ali@0: 	string_append(expected,testcase->expected);
ali@0:     }
ali@0:     else
ali@0:     {
ali@0: 	expected=NULL;
ali@0: 	header_len=0;
ali@0:     }
ali@0:     if (expected && strcmp(output,expected->str))
ali@0:     {
ali@0: 	fprintf(stderr,"%s: FAIL\n",testcase->basename);
ali@0: 	offset=common_prefix_length(output,expected->str);
ali@0: 	if (offset==header_len && !output[offset])
ali@0: 	    fprintf(stderr,"Unexpected zero warnings from gutcheck.\n");
ali@0: 	else
ali@0: 	{
ali@0: 	    endp=strchr(output+offset,'\n');
ali@0: 	    if (!endp)
ali@0: 		endp=output+strlen(output);
ali@0: 	    report=string_new(NULL);
ali@0: 	    string_append_len(report,output,endp-output);
ali@0: 	    bol=strrchr(report->str,'\n');
ali@0: 	    if (bol)
ali@0: 		bol++;
ali@0: 	    else
ali@0: 		bol=report->str;
ali@0: 	    col=offset-(bol-report->str);
ali@0: 	    fprintf(stderr,"Unexpected output from gutcheck:\n");
ali@0: 	    if (report->len>=header_len)
ali@0: 		fprintf(stderr,"%s\n%*s^\n",report->str+header_len,col,"");
ali@0: 	    else
ali@0: 		fprintf(stderr,"%s\n%*s^\n",report->str,col,"");
ali@0: 	    string_free(report,TRUE);
ali@0: 	}
ali@0: 	string_free(expected,TRUE);
ali@0: 	mem_free(output);
ali@0: 	return FALSE;
ali@0:     }
ali@0:     string_free(expected,TRUE);
ali@0:     mem_free(output);
ali@0:     if (exit_status)
ali@0: 	fprintf(stderr,"gutcheck exited with code %d\n",r);
ali@0:     if (!exit_status)
ali@0: 	fprintf(stderr,"%s: PASS\n",testcase->basename);
ali@0:     return !exit_status;
ali@0: }
ali@0: 
ali@0: /*
ali@0:  * Free a testcase.
ali@0:  */
ali@0: void testcase_free(Testcase *testcase)
ali@0: {
ali@0:     mem_free(testcase->basename);
ali@0:     mem_free(testcase->input);
ali@0:     mem_free(testcase->expected);
ali@0:     mem_free(testcase);
ali@0: }