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

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

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

        assertEquals("0/800 B", format.formatProgress(0L, 800L));
        assertEquals("400/800 B", format.formatProgress(400L, 800L));

                Arguments.of(15000000000L, 15000000000L, "15 GB"));
    }

    @ParameterizedTest
    @MethodSource("progressedSizeWithSizeTestData")
    void testProgressedSizeWithSize(long progressedSize, long totalSize, String expected) {
        FileSizeFormat format = new FileSizeFormat();
        assertEquals(expected, format.formatProgress(progressedSize, totalSize));
    }

    @Test