generator.setCommandList(commands);
        assertTrue(true);
    }

    public void test_setCommandList_null() throws Exception {
        generator.setCommandList(null);
        assertTrue(true);
    }

    public void test_setCommandList_empty() throws Exception {
        final List<String> commands = new ArrayList<>();
        generator.setCommandList(commands);
        assertTrue(true);
    }

            return executed.get();
        }
    }

    /**
     * Sets the list of commands to execute for thumbnail generation.
     * @param commandList The command list.
     */
    public void setCommandList(final List<String> commandList) {
        this.commandList = commandList;
    }

    /**
     * Sets the command execution timeout.
     * @param commandTimeout The timeout in milliseconds.
     */