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#
# Author:: Jay Mundrawala (<jdm@chef.io>)
#
# Copyright:: Copyright 2014-2016, 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 "chef"
require "spec_helper"
describe Chef::Provider::DscResource do
let (:events) { Chef::EventDispatch::Dispatcher.new }
let (:run_context) { Chef::RunContext.new(node, {}, events) }
let (:resource) { Chef::Resource::DscResource.new("dscresource", run_context) }
let (:provider) do
Chef::Provider::DscResource.new(resource, run_context)
end
context "when Powershell does not support Invoke-DscResource" do
let (:node) do
node = Chef::Node.new
node.automatic[:languages][:powershell][:version] = "4.0"
node
end
it "raises a ProviderNotFound exception" do
expect(provider).not_to receive(:meta_configuration)
expect { provider.run_action(:run) }.to raise_error(
Chef::Exceptions::ProviderNotFound, /5\.0\.10018\.0/)
end
end
context "when Powershell supports Invoke-DscResource" do
context "when RefreshMode is not set to Disabled" do
context "and the WMF 5 is a preview release" do
let (:node) do
node = Chef::Node.new
node.automatic[:languages][:powershell][:version] = "5.0.10018.0"
node
end
it "raises an exception" do
expect(provider).to receive(:dsc_refresh_mode_disabled?).and_return(false)
expect { provider.run_action(:run) }.to raise_error(
Chef::Exceptions::ProviderNotFound, /Disabled/)
end
end
context "and the WMF is 5 RTM or newer" do
let (:node) do
node = Chef::Node.new
node.automatic[:languages][:powershell][:version] = "5.0.10586.0"
node
end
it "does not raises an exception" do
expect(provider).to receive(:test_resource)
expect(provider).to receive(:set_resource)
expect(provider).to receive(:reboot_if_required)
expect { provider.run_action(:run) }.to_not raise_error
end
end
end
end
context "when the LCM supports Invoke-DscResource" do
let (:node) do
node = Chef::Node.new
node.automatic[:languages][:powershell][:version] = "5.0.10018.0"
node
end
let (:resource_result) { double("CmdletResult", return_value: { "InDesiredState" => true }, stream: "description") }
let (:invoke_dsc_resource) { double("cmdlet", run!: resource_result) }
let (:store) { double("ResourceStore", find: resource_records) }
let (:resource_records) { [] }
before do
allow(Chef::Util::DSC::ResourceStore).to receive(:instance).and_return(store)
allow(Chef::Util::Powershell::Cmdlet).to receive(:new).and_return(invoke_dsc_resource)
allow(provider).to receive(:dsc_refresh_mode_disabled?).and_return(true)
end
it "does not update the resource if it is up to date" do
expect(provider).to receive(:test_resource).and_return(true)
provider.run_action(:run)
expect(resource).not_to be_updated
end
it "converges the resource if it is not up to date" do
expect(provider).to receive(:test_resource).and_return(false)
expect(provider).to receive(:set_resource)
provider.run_action(:run)
expect(resource).to be_updated
end
it "flags the resource as reboot required when required" do
expect(provider).to receive(:test_resource).and_return(false)
expect(provider).to receive(:invoke_resource).
and_return(double(:stdout => "", :return_value => nil))
expect(provider).to receive(:add_dsc_verbose_log)
expect(provider).to receive(:return_dsc_resource_result).and_return(true)
expect(provider).to receive(:create_reboot_resource)
provider.run_action(:run)
end
it "does not flag the resource as reboot required when not required" do
expect(provider).to receive(:test_resource).and_return(false)
expect(provider).to receive(:invoke_resource).
and_return(double(:stdout => "", :return_value => nil))
expect(provider).to receive(:add_dsc_verbose_log)
expect(provider).to receive(:return_dsc_resource_result).and_return(false)
expect(provider).to_not receive(:create_reboot_resource)
provider.run_action(:run)
end
context "resource name cannot be found" do
let (:resource_records) { [] }
it "raises ResourceNotFound" do
expect { provider.run_action(:run) }.to raise_error(Chef::Exceptions::ResourceNotFound)
end
end
context "resource name is found" do
context "no module name for resource found" do
let (:resource_records) { [{}] }
it "returns the default dsc resource module" do
expect(Chef::Util::Powershell::Cmdlet).to receive(:new) do |node, cmdlet, format|
expect(cmdlet).to match(/Module PSDesiredStateConfiguration /)
end.and_return(invoke_dsc_resource)
provider.run_action(:run)
end
end
context "a module name for resource is found" do
let (:resource_records) { [{ "Module" => { "Name" => "ModuleName" } }] }
it "returns the default dsc resource module" do
expect(Chef::Util::Powershell::Cmdlet).to receive(:new) do |node, cmdlet, format|
expect(cmdlet).to match(/Module ModuleName /)
end.and_return(invoke_dsc_resource)
provider.run_action(:run)
end
end
context "multiple resource are found" do
let (:resource_records) do
[
{ "Module" => { "Name" => "ModuleName1" } },
{ "Module" => { "Name" => "ModuleName2" } },
] end
it "raises MultipleDscResourcesFound" do
expect { provider.run_action(:run) }.to raise_error(Chef::Exceptions::MultipleDscResourcesFound)
end
end
end
end
end
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