}
	})
	t.Run("uint32max_HasZip64", func(t *testing.T) {
		t.Parallel()
		if !generatesZip64(t, gen(uint32max)) {
			t.Error("expected zip64")
		}
	})
}

func testZip64(t testing.TB, size int64) *rleBuffer {
	const chunkSize = 1024
	chunks := int(size / chunkSize)
	// write size bytes plus "END\n" to a zip file
	buf := new(rleBuffer)
	w := NewWriter(buf)
	f, err := w.CreateHeader(&FileHeader{