Shinsuke Sugaya <******@****.***> 1764835356 +0900

            fail("Should throw exception for null output file");
        } catch (final Exception e) {
            assertTrue(true);
        }
    }

    @Test
    public void test_generate_thumbnailId_null() throws Exception {
        final File outputFile = File.createTempFile("command_generator", ".out");
        try {
            outputFile.delete();