spec/unit/aggregate/base_spec.rb

   1 #!/usr/bin/env rspec
   2
   3 require 'spec_helper'
   4
   5 module MCollective
   6   class Aggregate
   7     describe Base do
   8       describe "#initialize" do
   9         it "should set the correct instance variables and call the startup hook" do
  10           Base.any_instance.expects(:startup_hook).once
  11           base = Base.new("value", [], "%s%s", "rspec")
  12           base.name.should == "MCollective::Aggregate::Base"
  13           base.output_name.should == "value"
  14           base.aggregate_format.should == "%s%s"
  15           base.action.should == "rspec"
  16         end
  17       end
  18
  19       describe "#startup_hook and #process_result" do
  20         it "should raise an exception for an unimplemented startup_hook method " do
  21           expect{
  22             base = Base.new("value", [], "", "rspec")
  23           }.to raise_error(RuntimeError, "'startup_hook' method of function class MCollective::Aggregate::Base has not yet been implemented")
  24         end
  25
  26         it "should raise an exception for an unimplemented process_result method" do
  27           Base.any_instance.stubs(:startup_hook)
  28           base = Base.new("value", [], "", "rspec")
  29           expect{
  30             base.process_result
  31           }.to raise_error(RuntimeError,"'process_result' method of function class MCollective::Aggregate::Base has not yet been implemented")
  32         end
  33       end
  34
  35       describe "summarize" do
  36         it "should raise and exception if the result type has not been set" do
  37           Base.any_instance.stubs(:startup_hook)
  38           base = Base.new("value", [], "", "rspec")
  39           expect{
  40             base.summarize
  41           }.to raise_error(RuntimeError, "Result type is not set while trying to summarize aggregate function results")
  42         end
  43
  44         it "should return the correct result class if result type has been set" do
  45           result_object = mock
  46           result_object.stubs(:new)
  47
  48           Base.any_instance.stubs(:startup_hook)
  49           base = Base.new("value", [], "", "rspec")
  50           base.result[:type] = :result_type
  51           base.expects(:result_class).with(:result_type).returns(result_object)
  52           base.summarize
  53         end
  54       end
  55     end
  56   end
  57 end