[cli] first pass at test setup

tests/bin/cli_tests.rb

@@ -0,0 +1,17 @@
+Shindo.tests('cli_tests', 'cli') do
+
+  Thread.current[:formatador] = Formatador.new # reset indentation
+
+  EMPTY_SERVER_LISTING = Fog::Compute[:aws].servers.all.inspect + "\n"
+
+  empty_server_listing_implicit_arguments = 'aws:compute:servers --mock'
+  tests(empty_server_listing_implicit_arguments).returns(EMPTY_SERVER_LISTING) do
+    bin(empty_server_listing_implicit_arguments)
+  end
+
+  empty_server_listing_explicit_arguments = 'aws:compute:servers:all --mock'
+  tests(empty_server_listing_explicit_arguments).returns(EMPTY_SERVER_LISTING) do
+    bin(empty_server_listing_explicit_arguments)
+  end
+
+end

tests/bin/helper.rb

@@ -0,0 +1,8 @@
+require 'fog'
+require 'fog/bin' # for available_providers
+
+BIN = File.expand_path(File.join(File.dirname(__FILE__), '..', '..', 'bin', 'fog'))
+
+def bin(arguments)
+  `#{BIN} #{arguments}`
+end