Testing the gubbins

gistfile1.rb

Here is a dummy gubbins.rb

#!/usr/bin/ruby

class Gubbins

  def initialize
    @api_url = "https://api.polkaspots.com"
  end

  def run
    interface_name
  end

  def interface_name
    # would usually output eth1 and will fail if we run this
    # So we stub it for our tests
    `/uci/i-will-fail.sh`
  end
end

And now the spec file

require File.expand_path("../../gubbins", __FILE__)

describe "Main Tests for Gubbins" do

  before(:each) do
    @gubbins = instance_double("Gubbins")
    allow(@gubbins).to receive(:interface_name) { "eth1" }
  end

  it "should test we have mocked the interface name" do
    expect(@gubbins.interface_name).to eq 'eth1'
  end

  it "should run gubbins and output eth1" do
    gubbins = Gubbins.new
    allow(gubbins).to receive(:interface_name) { "eth1" }
    expect(gubbins.run).to eq 'eth1'
  end

end