#!/usr/bin/env ruby
#
# Unit testing for the RedHat service Provider
#
require File.dirname(__FILE__) + '/../../../spec_helper'

provider_class = Puppet::Type.type(:service).provider(:redhat)

describe provider_class do

    before :each do
        @class = Puppet::Type.type(:service).provider(:redhat)
        @resource = stub 'resource'
        @resource.stubs(:[]).returns(nil)
        @resource.stubs(:[]).with(:name).returns "myservice"
        @provider = provider_class.new
        @resource.stubs(:provider).returns @provider
        @provider.resource = @resource
        @provider.stubs(:get).with(:hasstatus).returns false
        FileTest.stubs(:file?).with('/sbin/service').returns true
        FileTest.stubs(:executable?).with('/sbin/service').returns true
    end

    # test self.instances
    describe "when getting all service instances" do
        before :each do
            @services = ['one', 'two', 'three', 'four', 'kudzu', 'functions', 'halt', 'killall', 'single', 'linuxconf']
            @not_services = ['functions', 'halt', 'killall', 'single', 'linuxconf']
            Dir.stubs(:entries).returns @services
            FileTest.stubs(:directory?).returns(true)
            FileTest.stubs(:executable?).returns(true)
        end
        it "should return instances for all services" do
            (@services-@not_services).each do |inst|
                @class.expects(:new).with{|hash| hash[:name] == inst && hash[:path] == '/etc/init.d'}.returns("#{inst}_instance")
            end
            results = (@services-@not_services).collect {|x| "#{x}_instance"}
            @class.instances.should == results
        end
        it "should call service status when initialized from provider" do
            @resource.stubs(:[]).with(:status).returns nil
            @provider.stubs(:get).with(:hasstatus).returns true
            @provider.expects(:execute).with{|command, *args| command == ['/sbin/service', 'myservice', 'status']}
            @provider.send(:status)
        end
    end

    it "should have an enabled? method" do
        @provider.should respond_to(:enabled?)
    end

    it "should have an enable method" do
        @provider.should respond_to(:enable)
    end

    it "should have a disable method" do
        @provider.should respond_to(:disable)
    end

    [:start, :stop, :status, :restart].each do |method|
        it "should have a #{method} method" do
            @provider.should respond_to(method)
        end
        describe "when running #{method}" do

            it "should use any provided explicit command" do
                @resource.stubs(:[]).with(method).returns "/user/specified/command"
                @provider.expects(:execute).with { |command, *args| command == ["/user/specified/command"] }
                @provider.send(method)
            end

            it "should execute the service script with #{method} when no explicit command is provided" do
                @resource.stubs(:[]).with("has#{method}".intern).returns :true
                @provider.expects(:execute).with { |command, *args| command ==  ['/sbin/service', 'myservice', method.to_s]}
                @provider.send(method)
            end
        end
    end

    describe "when checking status" do
        describe "when hasstatus is :true" do
            before :each do
                @resource.stubs(:[]).with(:hasstatus).returns :true
            end
            it "should execute the service script with fail_on_failure false" do
                @provider.expects(:texecute).with(:status, ['/sbin/service', 'myservice', 'status'], false)
                @provider.status
            end
            it "should consider the process running if the command returns 0" do
                @provider.expects(:texecute).with(:status, ['/sbin/service', 'myservice', 'status'], false)
                $CHILD_STATUS.stubs(:exitstatus).returns(0)
                @provider.status.should == :running
            end
            [-10,-1,1,10].each { |ec|
                it "should consider the process stopped if the command returns something non-0" do
                    @provider.expects(:texecute).with(:status, ['/sbin/service', 'myservice', 'status'], false)
                    $CHILD_STATUS.stubs(:exitstatus).returns(ec)
                    @provider.status.should == :stopped
                end
            }
        end
        describe "when hasstatus is not :true" do
            it "should consider the service :running if it has a pid" do
                @provider.expects(:getpid).returns "1234"
                @provider.status.should == :running
            end
            it "should consider the service :stopped if it doesn't have a pid" do
                @provider.expects(:getpid).returns nil
                @provider.status.should == :stopped
            end
        end
    end

    describe "when restarting and hasrestart is not :true" do
        it "should stop and restart the process with the server script" do
            @provider.expects(:texecute).with(:stop,  ['/sbin/service', 'myservice', 'stop'],  true)
            @provider.expects(:texecute).with(:start, ['/sbin/service', 'myservice', 'start'], true)
            @provider.restart
        end
    end
end