require File.expand_path(File.dirname(__FILE__) + '/../../spec_helper')

describe HealthChecks do
    include HealthChecks

    describe :add do

        it 'adds a check to the collection and returns the check' do
            check = double('MockCheck', :check => true)
            expect(add(check)).to eq(check)
        end

        it 'does not add checks that do not define the check method' do
            check = double('BadCheck')
            expect(add(check)).to eq(false)
        end

    end

    describe :all do

        it 'returns all the checks' do
            check1 = double('MockCheck', :check => true)
            check2 = double('AnotherCheck', :check => false)
            add(check1)
            add(check2)
            expect(all).to include(check1, check2)
        end

    end

    describe :each do

        it 'iterates over each check' do
            expect(subject).to respond_to(:each)
        end

    end

    describe :ok? do

      it 'returns true if all checks are ok' do
          checks = [
              double('MockCheck', :ok? => true),
              double('FakeCheck', :ok? => true),
              double('TestCheck', :ok? => true)
          ]
          HealthChecks.stub(:all => checks)

          expect(HealthChecks.ok?).to be_true
      end

      it 'returns false if all checks fail' do
          checks = [
              double('MockCheck', :ok? => false),
              double('FakeCheck', :ok? => false),
              double('TestCheck', :ok? => false)
          ]
          HealthChecks.stub(:all => checks)

          expect(HealthChecks.ok?).to be_false
      end

      it 'returns false if a single check fails' do
          checks = [
              double('MockCheck', :ok? => true),
              double('FakeCheck', :ok? => false),
              double('TestCheck', :ok? => true)
          ]
          HealthChecks.stub(:all => checks)

          expect(HealthChecks.ok?).to be_false
      end

    end

end