By Costas Pitas and Angeliki Koutantou ATHENS (Reuters) - Greek Prime Minister Alexis Tsipras faces his second major test in a week in parliament on Wednesday over reforms he wants lawmakers to adopt so bailout talks to keep the country in the euro can begin. Tsipras is likely to need opposition votes again for measures parliament will vote on late on Wednesday on propping up failed banks and speeding up the justice system -- two more conditions to start talks on the 86 billion euro rescue deal. The government hopes the negotiations can then start this week and be wrapped up by Aug. 20, but with divisions within Tsipras' leftist Syriza party laid bare by the votes, snap elections are likely in the autumn.