require 'spec_helper'

module Diagnostics
  describe Check do

    before { class MyClass; end }

    describe '.add' do
      it 'adds a check' do
        described_class.add MyClass
        Diagnostics.should have(1).checks
      end
    end

    describe '.find' do
      let!(:check) { described_class.add MyClass }

      it 'finds the check by name' do
        described_class.find('Diagnostics::MyClass').should eq(check)
      end
    end

    describe '#name' do
      it 'returns the diagnostic class name' do
        described_class.new(MyClass).name.should eq('Diagnostics::MyClass')
      end
    end

    describe '#instance' do
      it 'returns an instance of the diagnostic class' do
        described_class.new(MyClass).instance.should be_an_instance_of(MyClass)
      end
    end

    describe 'status predicate methods' do
      let(:check) { described_class.new(MyClass) }

      before do
        check.cls.class_eval do
          def passed; true end
          def warning; false end
          def failed; false end
        end
      end

      describe '#passed?' do
        specify { check.should be_passed }
      end

      describe '#warning?' do
        specify { check.should_not be_warning }
      end

      describe '#failed?' do
        specify { check.should_not be_failed }
      end
    end

    describe '#status' do
      [:passed, :warning, :failed, :none].each do |status|
        context "with #{status}" do
          let(:check) { create_check(status) }
          specify { check.status.should eq(status) }
          after { check.cls.send(:remove_method, status) }
        end
      end

      def create_check(status)
        described_class.new(MyClass).tap do |check|
          check.cls.class_eval do
            define_method(status) { true }
          end
        end
      end
    end

    describe '#data' do
      it 'returns a DataGroup instance' do
        data = described_class.new(MyClass).data
        data.should be_an_instance_of(Diagnostics::DataGroup)
      end
    end

  end
end