FileSizeFormat format = new FileSizeFormat();

        assertThrows(IllegalArgumentException.class, () -> format.formatProgress(100L, 10L));
    }

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

        assertEquals("0 B", format.formatProgress(0L, -1L));
        assertEquals("1.0 kB", format.formatProgress(1000L, -1L));

                Arguments.of(1000L * 1000L * 1000L, "1.0 GB"));
    }

    @ParameterizedTest
    @MethodSource("progressedSizeWithoutSizeTestData")
    void testProgressedSizeWithoutSize(long progressedSize, String expected) {
        FileSizeFormat format = new FileSizeFormat();
        assertEquals(expected, format.formatProgress(progressedSize, -1L));
    }