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#
# Author:: Adam Edwards (<adamed@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::GuardInterpreter::ResourceGuardInterpreter do
let(:node) do
node = Chef::Node.new
node.default["kernel"] = {}
node.default["kernel"][:machine] = :x86_64.to_s
node.automatic[:os] = "windows"
node
end
let(:run_context) { Chef::RunContext.new(node, nil, nil) }
let(:parent_resource) do
parent_resource = Chef::Resource.new("powershell_unit_test", run_context)
allow(parent_resource).to receive(:run_action)
allow(parent_resource).to receive(:updated).and_return(true)
parent_resource
end
let(:guard_interpreter) { Chef::GuardInterpreter::ResourceGuardInterpreter.new(parent_resource, "echo hi", nil) }
describe "get_interpreter_resource" do
it "allows the guard interpreter to be set to Chef::Resource::Script" do
parent_resource.guard_interpreter(:script)
expect { guard_interpreter }.not_to raise_error
end
it "allows the guard interpreter to be set to Chef::Resource::PowershellScript derived indirectly from Chef::Resource::Script" do
parent_resource.guard_interpreter(:powershell_script)
expect { guard_interpreter }.not_to raise_error
end
it "raises an exception if guard_interpreter is set to a resource not derived from Chef::Resource::Script" do
parent_resource.guard_interpreter(:file)
expect { guard_interpreter }.to raise_error(ArgumentError, "Specified guard interpreter class Chef::Resource::File must be a kind of Chef::Resource::Execute resource")
end
context "when the resource cannot be found for the platform" do
before do
expect(Chef::Resource).to receive(:resource_for_node).with(:foobar, node).and_return(nil)
end
it "raises an exception" do
parent_resource.guard_interpreter(:foobar)
expect { guard_interpreter }.to raise_error(ArgumentError, "Specified guard_interpreter resource foobar unknown for this platform")
end
end
it "fails when parent_resource is nil" do
expect { Chef::GuardInterpreter::ResourceGuardInterpreter.new(nil, "echo hi", nil) }.to raise_error(ArgumentError, /Node for guard resource parent must not be nil/)
end
end
describe "#evaluate" do
let(:guard_interpreter) { Chef::GuardInterpreter::ResourceGuardInterpreter.new(parent_resource, "echo hi", {}) }
let(:parent_resource) do
parent_resource = Chef::Resource.new("execute resource", run_context)
parent_resource.guard_interpreter(:execute)
parent_resource
end
it "successfully evaluates the resource" do
expect(guard_interpreter.evaluate).to eq(true)
end
it "does not corrupt the run_context of the node" do
node_run_context_before_guard_execution = parent_resource.run_context
expect(node_run_context_before_guard_execution.object_id).to eq(parent_resource.node.run_context.object_id)
guard_interpreter.evaluate
node_run_context_after_guard_execution = parent_resource.run_context
expect(node_run_context_after_guard_execution.object_id).to eq(parent_resource.node.run_context.object_id)
end
describe "script command opts switch" do
let(:guard_interpreter) { Chef::GuardInterpreter::ResourceGuardInterpreter.new(parent_resource, "exit 0", {}) }
let(:resource) { guard_interpreter.instance_variable_get(:@resource) }
context "resource is a Script" do
context "and guard_interpreter is a :script" do
let(:parent_resource) do
parent_resource = Chef::Resource::Script.new("resource", run_context)
# Ruby scripts are cross platform to both Linux and Windows
parent_resource.guard_interpreter(:ruby)
parent_resource
end
let(:shell_out) do
instance_double(Mixlib::ShellOut, live_stream: true, run_command: true, error!: nil)
end
before do
# TODO for some reason Windows is failing on executing a ruby script
expect(Mixlib::ShellOut).to receive(:new) do |*args|
expect(args[0]).to match(/^"ruby"/)
shell_out
end
end
it "assigns the comand to the resource's code property" do
guard_interpreter.evaluate
expect(resource.code).to eq("exit 0")
end
end
context "and guard_interpreter is :execute" do
let(:parent_resource) do
parent_resource = Chef::Resource::Script.new("resource", run_context)
parent_resource.guard_interpreter(:execute)
parent_resource
end
it "assigns the comand to the resource's command property" do
guard_interpreter.evaluate
expect(resource.command).to eq("exit 0")
end
end
end
context "resource is not a Script" do
let(:parent_resource) do
parent_resource = Chef::Resource::Execute.new("resource", run_context)
parent_resource.guard_interpreter(:execute)
parent_resource
end
it "assigns the comand to the resource's command property" do
guard_interpreter.evaluate
expect(resource.command).to eq("exit 0")
end
end
end
end
end
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