handle multiple casks with install

should address #52

includes better error handling if a nonexistent cask is referenced

first test-driven commit, suckas!

Gemfile

@@ -2,4 +2,5 @@ source :rubygems
 
 group :test do
   gem 'purdytest'
+  gem 'mocha'
 end

Gemfile.lock

@@ -1,7 +1,10 @@
 GEM
   remote: http://rubygems.org/
   specs:
+    metaclass (0.0.1)
     minitest (2.12.1)
+    mocha (0.12.7)
+      metaclass (~> 0.0.1)
     purdytest (1.0.0)
       minitest (~> 2.2)
 
@@ -9,4 +12,5 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  mocha
   purdytest

Rakefile

@@ -1,7 +1,7 @@
 require 'rake/testtask'
 
 Rake::TestTask.new do |t|
-  t.pattern = "test/*_test.rb"
+  t.pattern = "test/**/*_test.rb"
   t.libs << 'test'
 end
 

lib/cask/cli/install.rb

@@ -1,8 +1,13 @@
 class Cask::CLI::Install
-  def self.run(*arguments)
-    cask_name, *rest = *arguments
-    cask = Cask.load(cask_name)
-    cask.install
+  def self.run(*cask_names)
+    cask_names.each do |cask_name|
+      cask = begin
+               Cask.load(cask_name)
+             rescue CaskUnavailableError => e
+               onoe e
+             end
+      cask.install if cask
+    end
   end
 
   def self.help

test/cli/install_test.rb

@@ -0,0 +1,20 @@
+require 'test_helper'
+
+describe Cask::CLI::Install do
+  it "allows install of multiple casks at once" do
+    stub_cask = stub(:install => nil)
+    Cask.expects(:load).with('adium').returns(stub_cask)
+    Cask.expects(:load).with('google-chrome').returns(stub_cask)
+    Cask::CLI::Install.run('adium', 'google-chrome')
+  end
+
+  it "properly handles casks that are not present" do
+    stub_cask = stub(:install => nil)
+    Cask.expects(:load).with('adium').returns(stub_cask)
+    Cask.expects(:load).with('what-the-balls').raises(CaskUnavailableError.new('what-the-balls'))
+    Cask.expects(:load).with('google-chrome').returns(stub_cask)
+    shutup do
+      Cask::CLI::Install.run('adium', 'what-the-balls', 'google-chrome')
+    end
+  end
+end