Test update to branch tip

tests/test-newbranch

@@ -1,65 +1,73 b''
 #!/bin/sh
 
 hg init t
 cd t
 hg branches
 
 echo foo > a
 hg add a
 hg ci -m "initial" -d "1000000 0"
 hg branch foo
 hg branch
 hg ci -m "add branch name" -d "1000000 0"
 hg branch bar
 hg ci -m "change branch name" -d "1000000 0"
 hg branch ""
 hg ci -m "clear branch name" -d "1000000 0"
 
 hg co foo
 hg branch
 echo bleah > a
 hg ci -m "modify a branch" -d "1000000 0"
 
 hg merge
 hg branch
 hg ci -m "merge" -d "1000000 0"
 hg log
 
 hg branches
 hg branches -q
 
 echo % test for invalid branch cache
 hg rollback
 cp .hg/branches.cache .hg/bc-invalid
 hg log -r foo
 cp .hg/bc-invalid .hg/branches.cache
 hg --debug log -r foo
 rm .hg/branches.cache
 echo corrupted > .hg/branches.cache
 hg log -qr foo
 cat .hg/branches.cache
 
 echo % test for different branch cache features
 echo '4909a3732169c0c20011c4f4b8fdff4e3d89b23f 4' > .hg/branches.cache
 hg branches --debug
 echo ' features: unnamed dummy foo bar' > .hg/branches.cache
 hg branches --debug
 echo ' features: dummy' > .hg/branches.cache
 hg branches --debug
 
 echo % test old hg reading branch cache with feature list
 python << EOF
 import binascii
 f = file('.hg/branches.cache')
 lines = f.read().split('\n')
 f.close()
 firstline = lines[0]
 last, lrev = lines.pop(0).rstrip().split(" ", 1)
 try:
     last, lrev = binascii.unhexlify(last), int(lrev)
 except ValueError, inst:
     if str(inst) == "invalid literal for int():%s" % firstline:
         print "ValueError raised correctly, good."
     else:
         print "ValueError: %s" % inst
 EOF
+
+echo % update with no arguments: tipmost revision of the current branch
+hg up -q -C 0
+hg up -q
+hg id
+hg up -q 1
+hg up -q
+hg id

tests/test-newbranch.out

@@ -1,96 +1,99 b''
 foo
 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 foo
 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 foo
 changeset:   5:5f8fb06e083e
 branch:      foo
 tag:         tip
 parent:      4:4909a3732169
 parent:      3:bf1bc2f45e83
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     merge
 
 changeset:   4:4909a3732169
 branch:      foo
 parent:      1:b699b1cec9c2
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     modify a branch
 
 changeset:   3:bf1bc2f45e83
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     clear branch name
 
 changeset:   2:67ec16bde7f1
 branch:      bar
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     change branch name
 
 changeset:   1:b699b1cec9c2
 branch:      foo
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     add branch name
 
 changeset:   0:be8523e69bf8
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     initial
 
 foo                            5:5f8fb06e083e
                                3:bf1bc2f45e83
 bar                            2:67ec16bde7f1
 foo
 
 bar
 % test for invalid branch cache
 rolling back last transaction
 changeset:   4:4909a3732169
 branch:      foo
 tag:         tip
 parent:      1:b699b1cec9c2
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     modify a branch
 
 Invalid branch cache: unknown tip
 changeset:   4:4909a3732169c0c20011c4f4b8fdff4e3d89b23f
 branch:      foo
 tag:         tip
 parent:      1:b699b1cec9c2966b3700de4fef0dc123cd754c31
 parent:      -1:0000000000000000000000000000000000000000
 manifest:    4:d01b250baaa05909152f7ae07d7a649deea0df9a
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 files:       a
 extra:       branch=foo
 description:
 modify a branch
 
 
 4:4909a3732169
  features: unnamed
 4909a3732169c0c20011c4f4b8fdff4e3d89b23f 4
 bf1bc2f45e834c75404d0ddab57d53beab56e2f8 
 4909a3732169c0c20011c4f4b8fdff4e3d89b23f foo
 67ec16bde7f1575d523313b9bca000f6a6f12dca bar
 % test for different branch cache features
 branch cache: no features specified
 foo                            4:4909a3732169c0c20011c4f4b8fdff4e3d89b23f
                                3:bf1bc2f45e834c75404d0ddab57d53beab56e2f8
 bar                            2:67ec16bde7f1575d523313b9bca000f6a6f12dca
 branch cache: unknown features: dummy, foo, bar
 foo                            4:4909a3732169c0c20011c4f4b8fdff4e3d89b23f
                                3:bf1bc2f45e834c75404d0ddab57d53beab56e2f8
 bar                            2:67ec16bde7f1575d523313b9bca000f6a6f12dca
 branch cache: missing features: unnamed
 foo                            4:4909a3732169c0c20011c4f4b8fdff4e3d89b23f
                                3:bf1bc2f45e834c75404d0ddab57d53beab56e2f8
 bar                            2:67ec16bde7f1575d523313b9bca000f6a6f12dca
 % test old hg reading branch cache with feature list
 ValueError raised correctly, good.
+% update with no arguments: tipmost revision of the current branch
+bf1bc2f45e83
+4909a3732169 (foo) tip