1 files changed, 34 insertions, 0 deletions
diff --git a/tests/avif/avif_ptr_double_free.c b/tests/avif/avif_ptr_double_free.c
new file mode 100644
index 0000000..8160950
--- /dev/null
+++ b/tests/avif/avif_ptr_double_free.c
@@ -0,0 +1,34 @@
+/**
+ * Test that failure to convert to AVIF returns NULL
+ *
+ * We are creating an image, set its width to zero, and pass this image to
+ * gdImageAvifPtr().
+ * This is supposed to fail, and as such should return NULL.
+ *
+ * See also <https://github.com/libgd/libgd/issues/381>
+ */
+
+#include "gd.h"
+#include "gdtest.h"
+
+int main()
+{
+	gdImagePtr src, dst;
+	int size;
+
+	src = gdImageCreateTrueColor(1, 10);
+	gdTestAssert(src != NULL);
+
+	src->sx = 0;  // making the width 0 should cause gdImageAvifPtr() to fail
+
+	dst = gdImageAvifPtr(src, &size);
+	gdTestAssert(dst == NULL);
+
+	if (src)
+		gdImageDestroy(src);
+
+	if (dst)
+		gdImageDestroy(dst);
+
+	return gdNumFailures();
+}