@Deprecated
class FileSizeFormatTest {

    @Test
    void testNegativeSize() {
        FileSizeFormat format = new FileSizeFormat();

        long negativeSize = -100L;
        assertThrows(IllegalArgumentException.class, () -> format.format(negativeSize));
    }

    @Test
    void testSize() {
        FileSizeFormat format = new FileSizeFormat();

        assertEquals("0 B", format.format(0L));

			t.Fatalf("WriteHeader() = %v, want nil", err)
		}
		if _, err := tw.Write([]byte{0x00}); err != ErrWriteTooLong {
			t.Fatalf("Write() = %v, want %v", err, ErrWriteTooLong)
		}
	})

	t.Run("NegativeSize", func(t *testing.T) {
		tw := NewWriter(new(bytes.Buffer))
		hdr := &Header{Name: "small.txt", Size: -1}
		if err := tw.WriteHeader(hdr); err == nil {
			t.Fatalf("WriteHeader() = nil, want non-nil error")
		}