hub_test.rb

$LOAD_PATH.unshift File.dirname(__FILE__)
require 'helper'
require 'webmock/test_unit'

WebMock::BodyPattern.class_eval do
  undef normalize_hash
  # override normalizing hash since it otherwise requires JSON
  def normalize_hash(hash) hash end
end

class HubTest < Test::Unit::TestCase
  if defined? WebMock::API
    include WebMock::API
  else
    include WebMock
  end

  COMMANDS = []

  Hub::Commands.class_eval do
    remove_method :command?
    define_method :command? do |name|
      COMMANDS.include?(name)
    end
  end

  def setup
    COMMANDS.replace %w[open groff]
    Hub::Context::DIRNAME.replace 'hub'
    Hub::Context::REMOTES.clear

    @git = Hub::Context::GIT_CONFIG.replace(Hash.new { |h, k|
      unless k.index('config alias.') == 0
        raise ArgumentError, "`git #{k}` not stubbed"
      end
    }).update(
      'remote' => "mislav\norigin",
      'symbolic-ref -q HEAD' => 'refs/heads/master',
      'config github.user'   => 'tpw',
      'config github.token'  => 'abc123',
      'config --get-all remote.origin.url' => 'git://github.com/defunkt/hub.git',
      'config --get-all remote.mislav.url' => 'git://github.com/mislav/hub.git',
      'config branch.master.remote'  => 'origin',
      'config branch.master.merge'   => 'refs/heads/master',
      'config branch.feature.remote' => 'mislav',
      'config branch.feature.merge'  => 'refs/heads/experimental',
      'config --bool hub.http-clone' => 'false',
      'config core.repositoryformatversion' => '0'
    )
    super
  end

  def test_private_clone
    input   = "clone -p rtomayko/ronn"
    command = "git clone git@github.com:rtomayko/ronn.git"
    assert_command input, command
  end

  def test_public_clone
    input   = "clone rtomayko/ronn"
    command = "git clone git://github.com/rtomayko/ronn.git"
    assert_command input, command
  end

  def test_your_private_clone
    input   = "clone -p resque"
    command = "git clone git@github.com:tpw/resque.git"
    assert_command input, command
  end

  def test_your_public_clone
    input   = "clone resque"
    command = "git clone git://github.com/tpw/resque.git"
    assert_command input, command
  end

  def test_clone_with_arguments
    input   = "clone --bare -o master resque"
    command = "git clone --bare -o master git://github.com/tpw/resque.git"
    assert_command input, command
  end

  def test_clone_with_arguments_and_destination
    assert_forwarded "clone --template=one/two git://github.com/tpw/resque.git --origin master resquetastic"
  end

  def test_your_private_clone_fails_without_config
    out = hub("clone -p mustache") do
      stub_github_user(nil)
    end

    assert_equal "** No GitHub user set. See http://github.com/guides/local-github-config\n", out
  end

  def test_your_public_clone_fails_without_config
    out = hub("clone mustache") do
      stub_github_user(nil)
    end

    assert_equal "** No GitHub user set. See http://github.com/guides/local-github-config\n", out
  end

  def test_private_clone_left_alone
    assert_forwarded "clone git@github.com:rtomayko/ronn.git"
  end

  def test_public_clone_left_alone
    assert_forwarded "clone git://github.com/rtomayko/ronn.git"
  end

  def test_normal_public_clone_with_path
    assert_forwarded "clone git://github.com/rtomayko/ronn.git ronn-dev"
  end

  def test_normal_clone_from_path
    assert_forwarded "clone ./test"
  end

  def test_alias_expand
    stub_alias 'c', 'clone --bare'
    input   = "c rtomayko/ronn"
    command = "git clone --bare git://github.com/rtomayko/ronn.git"
    assert_command input, command
  end

  def test_alias_expand_advanced
    stub_alias 'c', 'clone --template="white space"'
    input   = "c rtomayko/ronn"
    command = "git clone '--template=white space' git://github.com/rtomayko/ronn.git"
    assert_command input, command
  end

  def test_alias_doesnt_expand_for_unknown_commands
    stub_alias 'c', 'compute --fast'
    assert_forwarded "c rtomayko/ronn"
  end

  def test_remote_origin
    input   = "remote add origin"
    command = "git remote add origin git://github.com/tpw/hub.git"
    assert_command input, command
  end

  def test_private_remote_origin
    input   = "remote add -p origin"
    command = "git remote add origin git@github.com:tpw/hub.git"
    assert_command input, command
  end

  def test_public_remote_origin_as_normal
    input   = "remote add origin http://github.com/defunkt/resque.git"
    command = "git remote add origin http://github.com/defunkt/resque.git"
    assert_command input, command
  end

  def test_remote_from_rel_path
    assert_forwarded "remote add origin ./path"
  end

  def test_remote_from_abs_path
    assert_forwarded "remote add origin /path"
  end

  def test_private_remote_origin_as_normal
    assert_forwarded "remote add origin git@github.com:defunkt/resque.git"
  end

  def test_public_submodule
    input   = "submodule add wycats/bundler vendor/bundler"
    command = "git submodule add git://github.com/wycats/bundler.git vendor/bundler"
    assert_command input, command
  end

  def test_private_submodule
    input   = "submodule add -p grit vendor/grit"
    command = "git submodule add git@github.com:tpw/grit.git vendor/grit"
    assert_command input, command
  end

  def test_submodule_branch
    input   = "submodule add -b ryppl ryppl/pip vendor/pip"
    command = "git submodule add -b ryppl git://github.com/ryppl/pip.git vendor/pip"
    assert_command input, command
  end

  def test_submodule_with_args
    input   = "submodule -q add --bare -- grit grit"
    command = "git submodule -q add --bare -- git://github.com/tpw/grit.git grit"
    assert_command input, command
  end

  def test_private_remote
    input   = "remote add -p rtomayko"
    command = "git remote add rtomayko git@github.com:rtomayko/hub.git"
    assert_command input, command
  end

  def test_public_remote
    input   = "remote add rtomayko"
    command = "git remote add rtomayko git://github.com/rtomayko/hub.git"
    assert_command input, command
  end

  def test_public_remote_f
    input   = "remote add -f rtomayko"
    command = "git remote add -f rtomayko git://github.com/rtomayko/hub.git"
    assert_command input, command
  end

  def test_named_public_remote
    input   = "remote add origin rtomayko"
    command = "git remote add origin git://github.com/rtomayko/hub.git"
    assert_command input, command
  end

  def test_named_public_remote_f
    input   = "remote add -f origin rtomayko"
    command = "git remote add -f origin git://github.com/rtomayko/hub.git"
    assert_command input, command
  end

  def test_private_remote_with_repo
    input   = "remote add -p jashkenas/coffee-script"
    command = "git remote add jashkenas git@github.com:jashkenas/coffee-script.git"
    assert_command input, command
  end

  def test_public_remote_with_repo
    input   = "remote add jashkenas/coffee-script"
    command = "git remote add jashkenas git://github.com/jashkenas/coffee-script.git"
    assert_command input, command
  end

  def test_public_remote_f_with_repo
    input   = "remote add -f jashkenas/coffee-script"
    command = "git remote add -f jashkenas git://github.com/jashkenas/coffee-script.git"
    assert_command input, command
  end

  def test_named_private_remote_with_repo
    input   = "remote add -p origin jashkenas/coffee-script"
    command = "git remote add origin git@github.com:jashkenas/coffee-script.git"
    assert_command input, command
  end

  def test_fetch_existing_remote
    assert_forwarded "fetch mislav"
  end

  def test_fetch_new_remote
    stub_remotes_group('xoebus', nil)
    stub_existing_fork('xoebus')

    assert_commands "git remote add xoebus git://github.com/xoebus/hub.git",
                    "git fetch xoebus",
                    "fetch xoebus"
  end

  def test_fetch_new_remote_with_options
    stub_remotes_group('xoebus', nil)
    stub_existing_fork('xoebus')

    assert_commands "git remote add xoebus git://github.com/xoebus/hub.git",
                    "git fetch --depth=1 --prune xoebus",
                    "fetch --depth=1 --prune xoebus"
  end

  def test_fetch_multiple_new_remotes
    stub_remotes_group('xoebus', nil)
    stub_remotes_group('rtomayko', nil)
    stub_existing_fork('xoebus')
    stub_existing_fork('rtomayko')

    assert_commands "git remote add xoebus git://github.com/xoebus/hub.git",
                    "git remote add rtomayko git://github.com/rtomayko/hub.git",
                    "git fetch --multiple xoebus rtomayko",
                    "fetch --multiple xoebus rtomayko"
  end

  def test_fetch_multiple_comma_separated_remotes
    stub_remotes_group('xoebus', nil)
    stub_remotes_group('rtomayko', nil)
    stub_existing_fork('xoebus')
    stub_existing_fork('rtomayko')

    assert_commands "git remote add xoebus git://github.com/xoebus/hub.git",
                    "git remote add rtomayko git://github.com/rtomayko/hub.git",
                    "git fetch --multiple xoebus rtomayko",
                    "fetch xoebus,rtomayko"
  end

  def test_fetch_multiple_new_remotes_with_filtering
    stub_remotes_group('xoebus', nil)
    stub_remotes_group('mygrp', 'one two')
    stub_remotes_group('typo', nil)
    stub_existing_fork('xoebus')
    stub_nonexisting_fork('typo')

    # mislav: existing remote; skipped
    # xoebus: new remote, fork exists; added
    # mygrp:  a remotes group; skipped
    # URL:    can't be a username; skipped
    # typo:   fork doesn't exist; skipped
    assert_commands "git remote add xoebus git://github.com/xoebus/hub.git",
                    "git fetch --multiple mislav xoebus mygrp git://example.com typo",
                    "fetch --multiple mislav xoebus mygrp git://example.com typo"
  end

  def test_cherry_pick
    assert_forwarded "cherry-pick a319d88"
  end

  def test_cherry_pick_url
    url = 'http://github.com/mislav/hub/commit/a319d88'
    assert_commands "git fetch mislav", "git cherry-pick a319d88", "cherry-pick #{url}"
  end

  def test_cherry_pick_url_with_fragment
    url = 'http://github.com/mislav/hub/commit/abcdef0123456789#comments'
    assert_commands "git fetch mislav", "git cherry-pick abcdef0123456789", "cherry-pick #{url}"
  end

  def test_cherry_pick_url_with_remote_add
    url = 'https://github.com/xoebus/hub/commit/a319d88'
    assert_commands "git remote add -f xoebus git://github.com/xoebus/hub.git",
                    "git cherry-pick a319d88",
                    "cherry-pick #{url}"
  end

  def test_cherry_pick_origin_url
    url = 'https://github.com/defunkt/hub/commit/a319d88'
    assert_commands "git fetch origin", "git cherry-pick a319d88", "cherry-pick #{url}"
  end

  def test_cherry_pick_github_user_notation
    assert_commands "git fetch mislav", "git cherry-pick a319d88", "cherry-pick mislav@a319d88"
  end

  def test_cherry_pick_github_user_repo_notation
    # not supported
    assert_forwarded "cherry-pick mislav/hubbub@a319d88"
  end

  def test_cherry_pick_github_notation_too_short
    assert_forwarded "cherry-pick mislav@a319"
  end

  def test_cherry_pick_github_notation_with_remote_add
    assert_commands "git remote add -f xoebus git://github.com/xoebus/hub.git",
                    "git cherry-pick a319d88",
                    "cherry-pick xoebus@a319d88"
  end

  def test_am_untouched
    assert_forwarded "am some.patch"
  end

  def test_am_pull_request
    with_tmpdir('/tmp/') do
      assert_commands "curl -#LA 'hub #{Hub::Version}' https://github.com/defunkt/hub/pull/55.patch -o /tmp/55.patch",
                      "git am --signoff /tmp/55.patch -p2",
                      "am --signoff https://github.com/defunkt/hub/pull/55 -p2"
    end
  end

  def test_am_commit_url
    with_tmpdir('/tmp/') do
      url = 'https://github.com/davidbalbert/hub/commit/fdb9921'

      assert_commands "curl -#LA 'hub #{Hub::Version}' #{url}.patch -o /tmp/fdb9921.patch",
                      "git am --signoff /tmp/fdb9921.patch -p2",
                      "am --signoff #{url} -p2"
    end
  end

  def test_am_gist
    with_tmpdir('/tmp/') do
      url = 'https://gist.github.com/8da7fb575debd88c54cf'

      assert_commands "curl -#LA 'hub #{Hub::Version}' #{url}.txt -o /tmp/gist-8da7fb575debd88c54cf.txt",
                      "git am --signoff /tmp/gist-8da7fb575debd88c54cf.txt -p2",
                      "am --signoff #{url} -p2"
    end
  end

  def test_init
    assert_commands "git init", "git remote add origin git@github.com:tpw/hub.git", "init -g"
  end

  def test_init_no_login
    out = hub("init -g") do
      stub_github_user(nil)
    end

    assert_equal "** No GitHub user set. See http://github.com/guides/local-github-config\n", out
  end

  def test_push_two
    assert_commands "git push origin cool-feature", "git push staging cool-feature",
                    "push origin,staging cool-feature"
  end

  def test_push_more
    assert_commands "git push origin cool-feature",
                    "git push staging cool-feature",
                    "git push qa cool-feature",
                    "push origin,staging,qa cool-feature"
  end

  def test_create
    stub_no_remotes
    stub_nonexisting_fork('tpw')
    stub_request(:post, "github.com/api/v2/yaml/repos/create").
      with(:body => { 'login'=>'tpw', 'token'=>'abc123', 'name' => 'hub' })

    expected = "remote add -f origin git@github.com:tpw/hub.git\n"
    expected << "created repository: tpw/hub\n"
    assert_equal expected, hub("create") { ENV['GIT'] = 'echo' }
  end

  def test_create_failed
    stub_no_remotes
    stub_nonexisting_fork('tpw')
    stub_request(:post, "github.com/api/v2/yaml/repos/create").
      to_return(:status => [401, "Your token is fail"])

    expected = "error creating repository: Your token is fail (HTTP 401)\n"
    assert_equal expected, hub("create") { ENV['GIT'] = 'echo' }
  end

  def test_create_with_env_authentication
    stub_no_remotes
    stub_nonexisting_fork('mojombo')

    old_user  = ENV['GITHUB_USER']
    old_token = ENV['GITHUB_TOKEN']
    ENV['GITHUB_USER']  = 'mojombo'
    ENV['GITHUB_TOKEN'] = '123abc'

    stub_request(:post, "github.com/api/v2/yaml/repos/create").
      with(:body => { 'login'=>'mojombo', 'token'=>'123abc', 'name' => 'hub' })

    expected = "remote add -f origin git@github.com:mojombo/hub.git\n"
    expected << "created repository: mojombo/hub\n"
    assert_equal expected, hub("create") { ENV['GIT'] = 'echo' }

  ensure
    ENV['GITHUB_USER']  = old_user
    ENV['GITHUB_TOKEN'] = old_token
  end

  def test_create_private_repository
    stub_no_remotes
    stub_nonexisting_fork('tpw')
    stub_request(:post, "github.com/api/v2/yaml/repos/create").
      with(:body => { 'login'=>'tpw', 'token'=>'abc123', 'name' => 'hub', 'public' => '0' })

    expected = "remote add -f origin git@github.com:tpw/hub.git\n"
    expected << "created repository: tpw/hub\n"
    assert_equal expected, hub("create -p") { ENV['GIT'] = 'echo' }
  end

  def test_create_with_description_and_homepage
    stub_no_remotes
    stub_nonexisting_fork('tpw')
    stub_request(:post, "github.com/api/v2/yaml/repos/create").with(:body => {
      'login'=>'tpw', 'token'=>'abc123', 'name' => 'hub',
      'description' => 'toyproject', 'homepage' => 'http://example.com'
    })

    expected = "remote add -f origin git@github.com:tpw/hub.git\n"
    expected << "created repository: tpw/hub\n"
    assert_equal expected, hub("create -d toyproject -h http://example.com") { ENV['GIT'] = 'echo' }
  end

  def test_create_with_existing_repository
    stub_no_remotes
    stub_existing_fork('tpw')

    expected = "tpw/hub already exists on GitHub\n"
    expected << "remote add -f origin git@github.com:tpw/hub.git\n"
    expected << "set remote origin: tpw/hub\n"
    assert_equal expected, hub("create") { ENV['GIT'] = 'echo' }
  end

  def test_create_no_user
    stub_no_remotes
    out = hub("create") do
      stub_github_token(nil)
    end
    assert_equal "** No GitHub token set. See http://github.com/guides/local-github-config\n", out
  end

  def test_create_outside_git_repo
    stub_no_git_repo
    assert_equal "'create' must be run from inside a git repository\n", hub("create")
  end

  def test_create_origin_already_exists
    stub_nonexisting_fork('tpw')
    stub_request(:post, "github.com/api/v2/yaml/repos/create").
      with(:body => { 'login'=>'tpw', 'token'=>'abc123', 'name' => 'hub' })

    expected = "remote -v\ncreated repository: tpw/hub\n"
    assert_equal expected, hub("create") { ENV['GIT'] = 'echo' }
  end

  def test_fork
    stub_nonexisting_fork('tpw')
    stub_request(:post, "github.com/api/v2/yaml/repos/fork/defunkt/hub").
      with(:body => { 'login'=>'tpw', 'token'=>'abc123' })

    expected = "remote add -f tpw git@github.com:tpw/hub.git\n"
    expected << "new remote: tpw\n"
    assert_equal expected, hub("fork") { ENV['GIT'] = 'echo' }
  end

  def test_fork_failed
    stub_nonexisting_fork('tpw')
    stub_request(:post, "github.com/api/v2/yaml/repos/fork/defunkt/hub").
      to_return(:status => [500, "Your fork is fail"])

    expected = "error creating fork: Your fork is fail (HTTP 500)\n"
    assert_equal expected, hub("fork") { ENV['GIT'] = 'echo' }
  end

  def test_fork_no_remote
    stub_nonexisting_fork('tpw')
    stub_request(:post, "github.com/api/v2/yaml/repos/fork/defunkt/hub")

    assert_equal "", hub("fork --no-remote") { ENV['GIT'] = 'echo' }
  end

  def test_fork_already_exists
    stub_existing_fork('tpw')

    expected = "tpw/hub already exists on GitHub\n"
    expected << "remote add -f tpw git@github.com:tpw/hub.git\n"
    expected << "new remote: tpw\n"
    assert_equal expected, hub("fork") { ENV['GIT'] = 'echo' }
  end

  def test_version
    out = hub('--version')
    assert_includes "git version 1.7.0.4", out
    assert_includes "hub version #{Hub::Version}", out
  end

  def test_exec_path
    out = hub('--exec-path')
    assert_equal "/usr/lib/git-core\n", out
  end

  def test_exec_path_arg
    out = hub('--exec-path=/home/wombat/share/my-l33t-git-core')
    assert_equal Hub::Commands.improved_help_text, hub("")
  end

  def test_html_path
    out = hub('--html-path')
    assert_equal "/usr/share/doc/git-doc\n", out
  end

  def test_help
    assert_equal Hub::Commands.improved_help_text, hub("help")
  end

  def test_help_by_default
    assert_equal Hub::Commands.improved_help_text, hub("")
  end

  def test_help_with_pager
    assert_equal Hub::Commands.improved_help_text, hub("-p")
  end

  def test_help_hub
    help_manpage = hub("help hub")
    assert_includes "git + hub = github", help_manpage
    assert_includes <<-config, help_manpage
Use git-config(1) to display the currently configured GitHub username:
config
  end

  def test_help_hub_no_groff
    stub_available_commands()
    assert_equal "** Can't find groff(1)\n", hub("help hub")
  end

  def test_hub_standalone
    help_standalone = hub("hub standalone")
    assert_equal Hub::Standalone.build, help_standalone
  end

  def test_hub_compare
    assert_command "compare refactor",
      "open https://github.com/defunkt/hub/compare/refactor"
  end

  def test_hub_compare_nothing
    expected = "Usage: hub compare [USER] [<START>...]<END>\n"
    assert_equal expected, hub("compare")
  end

  def test_hub_compare_tracking_nothing
    stub_tracking_nothing
    expected = "Usage: hub compare [USER] [<START>...]<END>\n"
    assert_equal expected, hub("compare")
  end

  def test_hub_compare_tracking_branch
    stub_branch('refs/heads/feature')

    assert_command "compare",
      "open https://github.com/mislav/hub/compare/experimental"
  end

  def test_hub_compare_range
    assert_command "compare 1.0...fix",
      "open https://github.com/defunkt/hub/compare/1.0...fix"
  end

  def test_hub_compare_on_wiki
    stub_repo_url 'git://github.com/defunkt/hub.wiki.git'
    assert_command "compare 1.0...fix",
      "open https://github.com/defunkt/hub/wiki/_compare/1.0...fix"
  end

  def test_hub_compare_fork
    assert_command "compare myfork feature",
      "open https://github.com/myfork/hub/compare/feature"
  end

  def test_hub_compare_url
    assert_command "compare -u 1.0...1.1",
      "echo https://github.com/defunkt/hub/compare/1.0...1.1"
  end

  def test_hub_browse
    assert_command "browse mojombo/bert", "open https://github.com/mojombo/bert"
  end

  def test_hub_browse_tracking_nothing
    stub_tracking_nothing
    assert_command "browse mojombo/bert", "open https://github.com/mojombo/bert"
  end

  def test_hub_browse_url
    assert_command "browse -u mojombo/bert", "echo https://github.com/mojombo/bert"
  end

  def test_hub_browse_self
    assert_command "browse resque", "open https://github.com/tpw/resque"
  end

  def test_hub_browse_subpage
    assert_command "browse resque commits",
      "open https://github.com/tpw/resque/commits/master"
    assert_command "browse resque issues",
      "open https://github.com/tpw/resque/issues"
    assert_command "browse resque wiki",
      "open https://github.com/tpw/resque/wiki"
  end

  def test_hub_browse_on_branch
    stub_branch('refs/heads/feature')

    assert_command "browse resque", "open https://github.com/tpw/resque"
    assert_command "browse resque commits",
      "open https://github.com/tpw/resque/commits/master"

    assert_command "browse",
      "open https://github.com/mislav/hub/tree/experimental"
    assert_command "browse -- tree",
      "open https://github.com/mislav/hub/tree/experimental"
    assert_command "browse -- commits",
      "open https://github.com/mislav/hub/commits/experimental"
  end

  def test_hub_browse_current
    assert_command "browse", "open https://github.com/defunkt/hub"
    assert_command "browse --", "open https://github.com/defunkt/hub"
  end

  def test_hub_browse_current_wiki
    stub_repo_url 'git://github.com/defunkt/hub.wiki.git'

    assert_command "browse", "open https://github.com/defunkt/hub/wiki"
    assert_command "browse -- wiki", "open https://github.com/defunkt/hub/wiki"
    assert_command "browse -- commits", "open https://github.com/defunkt/hub/wiki/_history"
    assert_command "browse -- pages", "open https://github.com/defunkt/hub/wiki/_pages"
  end

  def test_hub_browse_current_subpage
    assert_command "browse -- network",
      "open https://github.com/defunkt/hub/network"
    assert_command "browse -- anything/everything",
      "open https://github.com/defunkt/hub/anything/everything"
  end

  def test_hub_browse_deprecated_private
    with_browser_env('echo') do
      assert_includes "Warning: the `-p` flag has no effect anymore\n", hub("browse -p defunkt/hub")
    end
  end

  def test_hub_browse_no_repo
    stub_repo_url(nil)
    assert_equal "Usage: hub browse [<USER>/]<REPOSITORY>\n", hub("browse")
  end

  def test_custom_browser
    with_browser_env("custom") do
      assert_browser("custom")
    end
  end

  def test_linux_browser
    stub_available_commands "open", "xdg-open", "cygstart"
    with_browser_env(nil) do
      with_ruby_platform("i686-linux") do
        assert_browser("xdg-open")
      end
    end
  end

  def test_cygwin_browser
    stub_available_commands "open", "cygstart"
    with_browser_env(nil) do
      with_ruby_platform("i686-linux") do
        assert_browser("cygstart")
      end
    end
  end

  def test_no_browser
    stub_available_commands()
    expected = "Please set $BROWSER to a web launcher to use this command.\n"
    with_browser_env(nil) do
      with_ruby_platform("i686-linux") do
        assert_equal expected, hub("browse")
      end
    end
  end

  def test_context_method_doesnt_hijack_git_command
    assert_forwarded 'remotes'
  end

  def test_not_choking_on_ruby_methods
    assert_forwarded 'id'
    assert_forwarded 'name'
  end

  def test_multiple_remote_urls
    stub_repo_url("git://example.com/other.git\ngit://github.com/my/repo.git")
    assert_command "browse", "open https://github.com/my/repo"
  end

  protected

    def stub_github_user(name)
      @git['config github.user'] = name
    end

    def stub_github_token(token)
      @git['config github.token'] = token
    end

    def stub_repo_url(value)
      @git['config --get-all remote.origin.url'] = value
      Hub::Context::REMOTES.clear
    end

    def stub_branch(value)
      @git['symbolic-ref -q HEAD'] = value
    end

    def stub_tracking_nothing
      @git['config branch.master.remote'] = nil
      @git['config branch.master.merge'] = nil
    end

    def stub_remotes_group(name, value)
      @git["config remotes.#{name}"] = value
    end

    def stub_no_remotes
      @git['remote'] = ''
    end

    def stub_no_git_repo
      @git.replace({})
    end

    def stub_alias(name, value)
      @git["config alias.#{name}"] = value
    end

    def stub_existing_fork(user)
      stub_fork(user, 200)
    end

    def stub_nonexisting_fork(user)
      stub_fork(user, 404)
    end

    def stub_fork(user, status)
      stub_request(:get, "github.com/api/v2/yaml/repos/show/#{user}/hub").
        to_return(:status => status)
    end

    def stub_available_commands(*names)
      COMMANDS.replace names
    end

    def with_browser_env(value)
      browser, ENV['BROWSER'] = ENV['BROWSER'], value
      yield
    ensure
      ENV['BROWSER'] = browser
    end

    def with_tmpdir(value)
      dir, ENV['TMPDIR'] = ENV['TMPDIR'], value
      yield
    ensure
      ENV['TMPDIR'] = dir
    end

    def assert_browser(browser)
      assert_command "browse", "#{browser} https://github.com/defunkt/hub"
    end

    def with_ruby_platform(value)
      platform = RUBY_PLATFORM
      Object.send(:remove_const, :RUBY_PLATFORM)
      Object.const_set(:RUBY_PLATFORM, value)
      yield
    ensure
      Object.send(:remove_const, :RUBY_PLATFORM)
      Object.const_set(:RUBY_PLATFORM, platform)
    end

end