adding spec tests

spec/spec_helper.rb

@@ -0,0 +1,37 @@
+=begin
+require 'simplecov'
+SimpleCov.start do
+  add_filter '/spec/'
+end
+=end
+require 'helpers'
+require 'rspec'
+require 'vmpooler'
+require 'redis'
+require 'vmpooler/metrics'
+require 'computeservice_helper'
+
+def project_root_dir
+  File.dirname(File.dirname(__FILE__))
+end
+
+def fixtures_dir
+  File.join(project_root_dir, 'spec', 'fixtures')
+end
+
+def create_google_client_error(status_code, message, reason="notFound")
+  Google::Apis::ClientError.new(Google::Apis::ClientError, status_code:status_code, body:'{
+  "error": {
+    "code": '+status_code.to_s+',
+    "message": "'+message+'",
+    "errors": [
+      {
+        "message": "'+message+'",
+        "domain": "global",
+        "reason": "'+reason+'"
+      }
+    ]
+  }
+  }
+  ')
+end