adding a 1 files updated, 0 files merged, 0 files removed, 0 files unresolved 1 files updated, 0 files merged, 0 files removed, 0 files unresolved 1 files updated, 0 files merged, 0 files removed, 0 files unresolved % should fail because not at a head abort: repo has 3 heads - please merge with an explicit rev 1 files updated, 0 files merged, 0 files removed, 0 files unresolved % should fail because > 2 heads abort: repo has 3 heads - please merge with an explicit rev % should succeed 0 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) % should succeed - 2 heads 0 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) % should fail because 1 head abort: there is nothing to merge - use "hg update" instead