Testament is an American thrash metal band from Oakland, California, formed in 1983. Testament has two Top 40 albums and one Top 50 album to its credit in the UK. Their most recent album, the 2008 The Formation of Damnation entered the Top 20 in Germany at #15. The 1999 album The Gathering also entered the Top 50 in Germany. They had minor top 100 album success in the United States.