Added unit tests for datacenter class

Author: SLsthompson

spec/Datacenter_spec.rb

@@ -0,0 +1,50 @@
+#
+# Copyright (c) 2014 SoftLayer Technologies, Inc. All rights reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the 'Software'), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+
+$LOAD_PATH << File.expand_path(File.join(File.dirname(__FILE__), '../lib'))
+
+require 'rubygems'
+require 'softlayer_api'
+require 'rspec'
+
+describe SoftLayer::Datacenter do
+  let (:mock_client) do 
+    mock_client = SoftLayer::Client.new(:username => "fakeuser", :api_key => "DEADBEEFBADF00D")
+    allow(mock_client[:Location]).to receive(:call_softlayer_api_with_params) do |method_name, parameters, args|
+      fixture_from_json('datacenter_locations.json')
+    end
+    
+    mock_client
+  end
+  
+  it "retrieves a list of datacenters" do
+    datacenters = SoftLayer::Datacenter.datacenters(mock_client)
+    names = datacenters.collect { |datacenter| datacenter.name }
+    expect(names.sort).to eq ["ams01", "dal01", "dal02", "dal04", "dal05", "dal06", "dal07", "hkg02", "hou02", "lon02", "sea01", "sjc01", "sng01", "tor01", "wdc01", "wdc03"]
+  end
+  
+  it "retrieves a particular datacenter by name" do
+    dal05 =  SoftLayer::Datacenter.datacenter_named("dal05", mock_client)
+    expect(dal05.name).to eq "dal05"
+    expect(dal05.id).to be 138124
+  end
+end