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require "support/shared/integration/integration_helper"
describe "Resource.load_current_value" do
include IntegrationSupport
module Namer
extend self
attr_accessor :current_index
def incrementing_value
@incrementing_value += 1
@incrementing_value
end
attr_writer :incrementing_value
end
before(:all) { Namer.current_index = 1 }
before { Namer.current_index += 1 }
before { Namer.incrementing_value = 0 }
let(:resource_name) { :"load_current_value_dsl#{Namer.current_index}" }
let(:resource_class) {
result = Class.new(Chef::Resource) do
def self.to_s; resource_name; end
def self.inspect; resource_name.inspect; end
property :x, default: lazy { "default #{Namer.incrementing_value}" }
def self.created_x=(value)
@created = value
end
def self.created_x
@created
end
action :create do
new_resource.class.created_x = x
end
end
result.resource_name resource_name
result
}
# Pull on resource_class to initialize it
before { resource_class }
context "with a resource with load_current_value" do
before :each do
resource_class.load_current_value do
x "loaded #{Namer.incrementing_value} (#{self.class.properties.sort_by { |name, p| name }.
select { |name, p| p.is_set?(self) }.
map { |name, p| "#{name}=#{p.get(self)}" }.
join(", ") })"
end
end
context "and a resource with x set to a desired value" do
let(:resource) do
e = self
r = nil
converge {
r = public_send(e.resource_name, "blah") do
x "desired"
end
}
r
end
it "current_resource is passed name but not x" do
expect(resource.current_value.x).to eq "loaded 2 (name=blah)"
end
it "resource.current_value returns a different resource" do
expect(resource.current_value.x).to eq "loaded 2 (name=blah)"
expect(resource.x).to eq "desired"
end
it "resource.current_value constructs the resource anew each time" do
expect(resource.current_value.x).to eq "loaded 2 (name=blah)"
expect(resource.current_value.x).to eq "loaded 3 (name=blah)"
end
it "the provider accesses the current value of x" do
expect(resource.class.created_x).to eq "desired"
end
context "and identity: :i and :d with desired_state: false" do
before {
resource_class.class_eval do
property :i, identity: true
property :d, desired_state: false
end
}
before {
resource.i "desired_i"
resource.d "desired_d"
}
it "i, name and d are passed to load_current_value, but not x" do
expect(resource.current_value.x).to eq "loaded 2 (d=desired_d, i=desired_i, name=blah)"
end
end
context "and name_property: :i and :d with desired_state: false" do
before {
resource_class.class_eval do
property :i, name_property: true
property :d, desired_state: false
end
}
before {
resource.i "desired_i"
resource.d "desired_d"
}
it "i, name and d are passed to load_current_value, but not x" do
expect(resource.current_value.x).to eq "loaded 2 (d=desired_d, i=desired_i, name=blah)"
end
end
end
context "and a resource with no values set" do
let(:resource) do
e = self
r = nil
converge {
r = public_send(e.resource_name, "blah") do
end
}
r
end
it "the provider accesses values from load_current_value" do
expect(resource.class.created_x).to eq "loaded 1 (name=blah)"
end
end
let (:subresource_name) {
:"load_current_value_subresource_dsl#{Namer.current_index}"
}
let (:subresource_class) {
r = Class.new(resource_class) do
property :y, default: lazy { "default_y #{Namer.incrementing_value}" }
end
r.resource_name subresource_name
r
}
# Pull on subresource_class to initialize it
before { subresource_class }
let(:subresource) do
e = self
r = nil
converge {
r = public_send(e.subresource_name, "blah") do
x "desired"
end
}
r
end
context "and a child resource class with no load_current_value" do
it "the parent load_current_value is used" do
expect(subresource.current_value.x).to eq "loaded 2 (name=blah)"
end
it "load_current_value yields a copy of the child class" do
expect(subresource.current_value).to be_kind_of(subresource_class)
end
end
context "And a child resource class with load_current_value" do
before {
subresource_class.load_current_value do
y "loaded_y #{Namer.incrementing_value} (#{self.class.properties.sort_by { |name, p| name }.
select { |name, p| p.is_set?(self) }.
map { |name, p| "#{name}=#{p.get(self)}" }.
join(", ") })"
end
}
it "the overridden load_current_value is used" do
current_resource = subresource.current_value
expect(current_resource.x).to eq "default 3"
expect(current_resource.y).to eq "loaded_y 2 (name=blah)"
end
end
context "and a child resource class with load_current_value calling super()" do
before {
subresource_class.load_current_value do
super()
y "loaded_y #{Namer.incrementing_value} (#{self.class.properties.sort_by { |name, p| name }.
select { |name, p| p.is_set?(self) }.
map { |name, p| "#{name}=#{p.get(self)}" }.
join(", ") })"
end
}
it "the original load_current_value is called as well as the child one" do
current_resource = subresource.current_value
expect(current_resource.x).to eq "loaded 3 (name=blah)"
expect(current_resource.y).to eq "loaded_y 4 (name=blah, x=loaded 3 (name=blah))"
end
end
end
end
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