/**
* Basic test for gdImageNegate()
*/
#include "gd.h"
#include "gdtest.h"
int main()
{
gdImagePtr im;
FILE *fp;
char *path;
fp = gdTestFileOpen2("gdimagenegate", "basic.png");
im = gdImageCreateFromPng(fp);
fclose(fp);
gdImageNegate(im);
path = gdTestFilePath2("gdimagenegate", "basic_exp.png");
gdAssertImageEqualsToFile(path, im);
gdFree(path);
gdImageDestroy(im);
return gdNumFailures();
}