Add tests for example settings and example APIv1 catalog builder

Author: Kevin Paulisse

spec/octocatalog-diff/integration/examples_spec.rb

@@ -0,0 +1,60 @@
+# frozen_string_literal: true
+
+require_relative '../tests/spec_helper'
+
+require 'open3'
+require 'stringio'
+
+describe 'examples/octocatalog-diff.cfg.rb' do
+  let(:script) { File.expand_path('../../../examples/octocatalog-diff.cfg.rb', File.dirname(__FILE__)) }
+  let(:ls_l) { Open3.capture2e("ls -l '#{script}'").first }
+
+  it 'should exist' do
+    expect(File.file?(script)).to eq(true), ls_l
+  end
+
+  it 'should not raise errors when loaded' do
+    load script
+  end
+
+  it 'should create OctocatalogDiff::Config namespace and .config method' do
+    k = Kernel.const_get('OctocatalogDiff::Config')
+    expect(k.to_s).to eq('OctocatalogDiff::Config')
+  end
+
+  it 'should return a hash from the .config method' do
+    result = OctocatalogDiff::Config.config
+    expect(result).to be_a_kind_of(Hash)
+  end
+end
+
+describe 'examples/api/v1/catalog-builder-local-files.rb' do
+  let(:script) { File.expand_path('../../../examples/api/v1/catalog-builder-local-files.rb', File.dirname(__FILE__)) }
+  let(:ls_l) { Open3.capture2e("ls -l '#{script}'").first }
+
+  it 'should exist' do
+    expect(File.file?(script)).to eq(true), ls_l
+  end
+
+  context 'executing' do
+    before(:each) do
+      @stdout_obj = StringIO.new
+      @old_stdout = $stdout
+      $stdout = @stdout_obj
+    end
+
+    after(:each) do
+      $stdout = @old_stdout
+    end
+
+    it 'should compile and run' do
+      load script
+      output = @stdout_obj.string.split("\n")
+      expect(output).to include('Object returned from OctocatalogDiff::API::V1.catalog is: OctocatalogDiff::API::V1::Catalog')
+      expect(output).to include('The catalog is valid.')
+      expect(output).to include('The catalog was built using OctocatalogDiff::Catalog::Computed')
+      expect(output).to include('- System::User - bob')
+      expect(output).to include('The resources are equal!')
+    end
+  end
+end