@Test
public void shouldRegisterHandler() {

    try {
        final Long testCommandId = 815L;

        final NewCommandSourceHandler registeredHandler = this.commandHandlerProvider.getHandler("HUMAN", "UPDATE");

        final CommandProcessingResult result =
                registeredHandler.processCommand(
                        JsonCommand.fromExistingCommand(testCommandId, null, null, null, null, null, null, null, null));
        Assert.assertEquals(testCommandId, result.commandId());
    } catch (UnsupportedCommandException ucex) {
        Assert.fail();
    }
}