Fix the update tests

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Library/Homebrew/test/test_updater.rb

@@ -23,6 +23,8 @@ class RefreshBrewMock < RefreshBrew
       raise "#{inspect} Unexpectedly called backticks in pwd `#{HOMEBREW_PREFIX}' and command `#{cmd}'"
     end
   end
+
+  alias safe_system `
   
   def expectations_met?
     @expect.keys.sort == @called.sort
@@ -54,8 +56,8 @@ class UpdaterTests < Test::Unit::TestCase
   def test_update_homebrew_without_any_changes
     outside_prefix do
       updater = RefreshBrewMock.new
-      updater.in_prefix_expect("git checkout master")
-      updater.in_prefix_expect("git pull origin master", "Already up-to-date.\n")
+      updater.in_prefix_expect(RefreshBrew::INIT_COMMAND)
+      updater.in_prefix_expect(RefreshBrew::UPDATE_COMMAND, "Already up-to-date.\n")
       
       assert_equal false, updater.update_from_masterbrew!
       assert updater.expectations_met?
@@ -67,9 +69,9 @@ class UpdaterTests < Test::Unit::TestCase
   def test_update_homebrew_without_formulae_changes
     outside_prefix do
       updater = RefreshBrewMock.new
-      updater.in_prefix_expect("git checkout master")
+      updater.in_prefix_expect(RefreshBrew::INIT_COMMAND)
       output = fixture('update_git_pull_output_without_formulae_changes')
-      updater.in_prefix_expect("git pull origin master", output)
+      updater.in_prefix_expect(RefreshBrew::UPDATE_COMMAND, output)
       
       assert_equal true, updater.update_from_masterbrew!
       assert !updater.pending_formulae_changes?
@@ -81,9 +83,9 @@ class UpdaterTests < Test::Unit::TestCase
   def test_update_homebrew_with_formulae_changes
     outside_prefix do
       updater = RefreshBrewMock.new
-      updater.in_prefix_expect("git checkout master")
+      updater.in_prefix_expect(RefreshBrew::INIT_COMMAND)
       output = fixture('update_git_pull_output_with_formulae_changes')
-      updater.in_prefix_expect("git pull origin master", output)
+      updater.in_prefix_expect(RefreshBrew::UPDATE_COMMAND, output)
       
       assert_equal true, updater.update_from_masterbrew!
       assert updater.pending_formulae_changes?
@@ -95,7 +97,7 @@ class UpdaterTests < Test::Unit::TestCase
   def test_updater_returns_current_revision
     outside_prefix do
       updater = RefreshBrewMock.new
-      updater.in_prefix_expect('git log -l -1 --pretty=format:%H', 'the-revision-hash')
+      updater.in_prefix_expect(RefreshBrew::REVISION_COMMAND, 'the-revision-hash')
       assert_equal 'the-revision-hash', updater.current_revision
     end
   end

Library/Homebrew/test/tests

@@ -5,10 +5,6 @@
 # Note: "formula_test" is omitted; these aren't unit tests but sanity checks
 # on the real formulae.
 #
-# Run as:
-#  ./tests -- --skip-update
-# to omit the update tests which only seem to work for mxcl
-#
 
 # Feel free to split out test_bucket
 ruby test_bucket.rb $*
@@ -24,6 +20,4 @@ ruby test_pathname_install.rb $*
 ruby test_utils.rb $*
 ruby test_ARGV.rb $*
 ruby test_ENV.rb $*
-
-# Update tests (only seem to work for mxcl)
 ruby test_updater.rb $*

Library/Homebrew/update.rb

@@ -1,5 +1,6 @@
 class RefreshBrew
   RESPOSITORY_URL  = 'git://github.com/mxcl/homebrew.git'
+  INIT_COMMAND     = "git init"
   CHECKOUT_COMMAND = 'git checkout -q master'
   UPDATE_COMMAND   = "git pull #{RESPOSITORY_URL} master"
   REVISION_COMMAND = 'git log -l -1 --pretty=format:%H 2> /dev/null'
@@ -60,7 +61,7 @@ class RefreshBrew
   
   def execute(cmd)
     out = `#{cmd}`
-    unless $?.success?
+    if $? && !$?.success?
       puts out
       raise "Failed while executing #{cmd}"
     end