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require 'spec_helper'
require 'rspec-puppet/cache'
describe RSpec::Puppet::Cache do
let(:compiler) { Hash.new }
subject do
described_class.new do |args|
compiler[args]
end
end
describe "fetching cached entries" do
it "calls the get_proc on cache misses" do
compiler["example.com"] = "New catalog!"
fetched_obj = subject.get("example.com")
expect(fetched_obj).to eq("New catalog!")
end
it "can supply a proc to the get method" do
compiler["example.com"] = "New catalog!"
fetched_obj = subject.get("example.com") do |args|
compiler[args] + "!!"
end
expect(fetched_obj).to eq("New catalog!!!")
end
it "can handle procs with multiple args" do
compiler["example.com"] = "New catalog!"
fetched_obj = subject.get("example.com", " Yay!") do |arg1, arg2|
compiler[arg1] + arg2
end
expect(fetched_obj).to eq("New catalog! Yay!")
end
it "reuses cached entries" do
compiler["example.com"] = "Cachable catalog!"
first = subject.get("example.com")
second = subject.get("example.com")
expect(first.object_id).to eq(second.object_id)
end
it "evicts expired entries" do
compiler["evicting.example.com"] = "Catalog to evict"
0.upto(15) do |i|
compiler["node#{i}.example.com"] = "Catalog for node #{i}"
end
first = subject.get("evicting.example.com")
0.upto(15) do |i|
subject.get("node#{i}.example.com")
end
compiler["evicting.example.com"] = "Replacement catalog"
second = subject.get("evicting.example.com")
expect(first).to eq("Catalog to evict")
expect(second).to eq("Replacement catalog")
end
end
end
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