/**

 * 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();

}