#
# Author:: Lee Jensen (<ljensen@engineyard.com>)
# Author:: AJ Christensen (<aj@chef.io>)
# Copyright:: Copyright (c) Chef Software Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

require "spec_helper"

describe Chef::Provider::Service::Gentoo do
  before(:each) do
    @node = Chef::Node.new
    @events = Chef::EventDispatch::Dispatcher.new
    @run_context = Chef::RunContext.new(@node, {}, @events)

    @new_resource     = Chef::Resource::Service.new("chef")
    @current_resource = Chef::Resource::Service.new("chef")

    @provider = Chef::Provider::Service::Gentoo.new(@new_resource, @run_context)
    allow(Chef::Resource::Service).to receive(:new).and_return(@current_resource)
    @status = double("Status", exitstatus: 0, stdout: @stdout)
    allow(@provider).to receive(:shell_out).and_return(@status)
    allow(File).to receive(:exists?).with("/etc/init.d/chef").and_return(true)
    allow(File).to receive(:exists?).with("/sbin/rc-update").and_return(true)
    allow(File).to receive(:exists?).with("/etc/runlevels/default/chef").and_return(false)
    allow(File).to receive(:readable?).with("/etc/runlevels/default/chef").and_return(false)
  end
  # new test: found_enabled state
  #
  describe "load_current_resource" do
    it "should raise Chef::Exceptions::Service if /sbin/rc-update does not exist" do
      expect(File).to receive(:exists?).with("/sbin/rc-update").and_return(false)
      @provider.define_resource_requirements
      expect { @provider.process_resource_requirements }.to raise_error(Chef::Exceptions::Service)
    end

    it "should track when service file is not found in /etc/runlevels" do
      @provider.load_current_resource
      expect(@provider.instance_variable_get("@found_script")).to be_falsey
    end

    it "should track when service file is found in /etc/runlevels/**/" do
      allow(Dir).to receive(:glob).with("/etc/runlevels/**/chef").and_return(["/etc/runlevels/default/chef"])
      @provider.load_current_resource
      expect(@provider.instance_variable_get("@found_script")).to be_truthy
    end

    describe "when detecting the service enable state" do
      describe "and the glob returns a default service script file" do
        before do
          allow(Dir).to receive(:glob).with("/etc/runlevels/**/chef").and_return(["/etc/runlevels/default/chef"])
        end

        describe "and the file exists and is readable" do
          before do
            allow(File).to receive(:exists?).with("/etc/runlevels/default/chef").and_return(true)
            allow(File).to receive(:readable?).with("/etc/runlevels/default/chef").and_return(true)
          end
          it "should set enabled to true" do
            @provider.load_current_resource
            expect(@current_resource.enabled).to be_truthy
          end
        end

        describe "and the file exists but is not readable" do
          before do
            allow(File).to receive(:exists?).with("/etc/runlevels/default/chef").and_return(true)
            allow(File).to receive(:readable?).with("/etc/runlevels/default/chef").and_return(false)
          end

          it "should set enabled to false" do
            @provider.load_current_resource
            expect(@current_resource.enabled).to be_falsey
          end
        end

        describe "and the file does not exist" do
          before do
            allow(File).to receive(:exists?).with("/etc/runlevels/default/chef").and_return(false)
            allow(File).to receive(:readable?).with("/etc/runlevels/default/chef").and_return("foobarbaz")
          end

          it "should set enabled to false" do
            @provider.load_current_resource
            expect(@current_resource.enabled).to be_falsey
          end

        end
      end

    end

    it "should return the current_resource" do
      expect(@provider.load_current_resource).to eq(@current_resource)
    end

    it "should support the status command automatically" do
      @provider.load_current_resource
      expect(@provider.supports[:status]).to be true
    end

    it "should support the restart command automatically" do
      @provider.load_current_resource
      expect(@provider.supports[:restart]).to be true
    end

    it "should not support the reload command automatically" do
      @provider.load_current_resource
      expect(@provider.supports[:reload]).to be_falsey
    end

  end

  describe "action_methods" do
    before(:each) { allow(@provider).to receive(:load_current_resource).and_return(@current_resource) }

    describe Chef::Provider::Service::Gentoo, "enable_service" do
      it "should call rc-update add *service* default" do
        expect(@provider).to receive(:shell_out!).with("/sbin/rc-update add chef default")
        @provider.enable_service
      end
    end

    describe Chef::Provider::Service::Gentoo, "disable_service" do
      it "should call rc-update del *service* default" do
        expect(@provider).to receive(:shell_out!).with("/sbin/rc-update del chef default")
        @provider.disable_service
      end
    end
  end

end