Add some more tests

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Add some more tests

manifest hash: 0e357a0d32baee877f2c7b6c6a8f7468e4b7f1b5
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tests/test-pull

@@ -0,0 +1,24 b''
+#!/bin/bash
+
+set -e
+
+mkdir test
+cd test
+echo foo>foo
+hg init
+hg addremove
+hg commit -t "1"
+hg verify
+hg serve 2>/dev/null &
+C=$!
+cd ..
+
+mkdir copy
+cd copy
+hg init http://localhost:8000/
+hg verify
+hg co
+cat foo
+hg manifest
+
+kill $C

tests/test-pull.out

@@ -0,0 +1,18 b''
+checking changesets
+checking manifests
+crosschecking files in changesets and manifests
+checking files
+1 files, 1 changesets, 1 total revisions
+requesting all changes
+adding changesets
+adding manifests
+adding file revisions
+modified 1 files, added 1 changesets and 1 new revisions
+checking changesets
+checking manifests
+crosschecking files in changesets and manifests
+checking files
+1 files, 1 changesets, 1 total revisions
+foo
+2ed2a3912a0b24502043eae84ee4b279c18b90dd 644 foo
+killed!

tests/test-undo

@@ -0,0 +1,16 b''
+#!/bin/bash
+
+set -x
+mkdir t
+cd t
+hg init
+echo a > a
+hg add a
+hg commit -t "test" -u test -d "0 0"
+hg verify
+hg parents
+hg status
+hg undo
+hg verify
+hg parents
+hg status

tests/test-undo.out

@@ -0,0 +1,30 b''
++ mkdir t
++ cd t
++ hg init
++ echo a
++ hg add a
++ hg commit -t test -u test -d '0 0'
++ hg verify
+checking changesets
+checking manifests
+crosschecking files in changesets and manifests
+checking files
+1 files, 1 changesets, 1 total revisions
++ hg parents
+changeset:   0:acb14030fe0a21b60322c440ad2d20cf7685a376
+user:        test
+date:        Wed Dec 31 16:00:00 1969
+summary:     test
+
++ hg status
++ hg undo
+attempting to rollback last transaction
++ hg verify
+checking changesets
+checking manifests
+crosschecking files in changesets and manifests
+checking files
+0 files, 0 changesets, 0 total revisions
++ hg parents
++ hg status
+A a

tests/test-help

@@ -6,4 +6,6 b' hg help'
 hg add -h
 hg help diff
 hg help foo
+hg commands
 
+exit 0
  No newline at end of file

tests/test-help.out

@@ -43,3 +43,36 b' hg diff [-r A] [-r B] [files]'
 diff working directory (or selected files)
 + hg help foo
 hg: unknown command foo
++ hg commands
+hg: unknown command 'commands'
+hg commands:
+
+ add         add the specified files on the next commit
+ addremove   add all new files, delete all missing files
+ annotate    show changeset information per file line
+ cat         output the latest or given revision of a file
+ commit      commit the specified files or all outstanding changes
+ diff        diff working directory (or selected files)
+ export      dump the changeset header and diffs for a revision
+ forget      don't add the specified files on the next commit
+ heads       show current repository heads
+ help        show help for a given command or all commands
+ history     show the changelog history
+ init        create a new repository or copy an existing one
+ log         show the revision history of a single file
+ manifest    output the latest or given revision of the project manifest
+ parents     show the parents of the current working dir
+ patch       import an ordered set of patches
+ pull        pull changes from the specified source
+ push        push changes to the specified destination
+ rawcommit   raw commit interface
+ recover     roll back an interrupted transaction
+ remove      remove the specified files on the next commit
+ serve       export the repository via HTTP
+ status      show changed files in the working directory
+ tags        list repository tags
+ tip         show the tip revision
+ undo        undo the last transaction
+ update      update or merge working directory
+ verify      verify the integrity of the repository
++ exit 0