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#
# Author:: Daniel DeLeo (<dan@chef.io>)
# Copyright:: Copyright 2012-2016, 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 "spec_helper"
require "support/lib/library_load_order"
# These tests rely on fixture data in spec/data/run_context/cookbooks.
#
# Dependencies (circular or not) are specified by `depends` directives in the
# metadata of these cookbooks.
#
# Side effects used to verify the behavior are implemented as code in the various file types.
#
describe Chef::RunContext::CookbookCompiler do
let(:node) { Chef::Node.new }
let(:events) { Chef::EventDispatch::Dispatcher.new }
let(:cookbook_loader) do
cl = Chef::CookbookLoader.new(chef_repo_path)
cl.load_cookbooks
cl
end
let(:run_context) { Chef::RunContext.new(node, cookbook_collection, events) }
let(:chef_repo_path) { File.expand_path(File.join(CHEF_SPEC_DATA, "run_context", "cookbooks")) }
let(:cookbook_collection) { Chef::CookbookCollection.new(cookbook_loader) }
# Lazy evaluation of `expansion` here is used to mutate the run list before expanding it
let(:run_list_expansion) { node.run_list.expand("_default") }
let(:compiler) do
Chef::RunContext::CookbookCompiler.new(run_context, run_list_expansion, events)
end
describe "loading attribute files" do
# Attribute files in the fixture data will append their
# "cookbook_name::attribute_file_name" to the node's `:attr_load_order`
# attribute when loaded.
it "loads default.rb first, then other files in sort order" do
node.run_list("dependency1::default")
compiler.compile_attributes
expect(node[:attr_load_order]).to eq(["dependency1::default", "dependency1::aa_first", "dependency1::zz_last"])
end
it "loads dependencies before loading the depending cookbook's attributes" do
# Also make sure that attributes aren't loaded twice if we have two
# recipes from the same cookbook in the run list
node.run_list("test-with-deps::default", "test-with-deps::server")
compiler.compile_attributes
# dependencies are stored in a hash so therefore unordered, but they should be loaded in sort order
expect(node[:attr_load_order]).to eq(["dependency1::default",
"dependency1::aa_first",
"dependency1::zz_last",
"dependency2::default",
"test-with-deps::default"])
end
it "does not follow infinite dependency loops" do
node.run_list("test-with-circular-deps::default")
# Circular deps should not cause infinite loops
compiler.compile_attributes
expect(node[:attr_load_order]).to eq(["circular-dep2::default", "circular-dep1::default", "test-with-circular-deps::default"])
end
it "loads attributes from cookbooks that don't have a default.rb attribute file" do
node.run_list("no-default-attr::default.rb")
compiler.compile_attributes
expect(node[:attr_load_order]).to eq(["no-default-attr::server"])
end
end
describe "loading libraries" do
before do
LibraryLoadOrder.reset!
end
# One big test for everything. Individual behaviors are tested by the attribute code above.
it "loads libraries in run list order" do
node.run_list("test-with-deps::default", "test-with-circular-deps::default")
compiler.compile_libraries
expect(LibraryLoadOrder.load_order).to eq(["dependency1", "dependency2", "test-with-deps", "circular-dep2", "circular-dep1", "test-with-circular-deps"])
end
end
describe "loading LWRPs" do
before do
LibraryLoadOrder.reset!
end
# One big test for everything. Individual behaviors are tested by the attribute code above.
it "loads LWRPs in run list order" do
node.run_list("test-with-deps::default", "test-with-circular-deps::default")
compiler.compile_lwrps
expect(LibraryLoadOrder.load_order).to eq(["dependency1-provider",
"dependency1-resource",
"dependency2-provider",
"dependency2-resource",
"test-with-deps-provider",
"test-with-deps-resource",
"circular-dep2-provider",
"circular-dep2-resource",
"circular-dep1-provider",
"circular-dep1-resource",
"test-with-circular-deps-provider",
"test-with-circular-deps-resource"])
end
end
describe "loading resource definitions" do
before do
LibraryLoadOrder.reset!
end
# One big test for all load order concerns. Individual behaviors are tested
# by the attribute code above.
it "loads resource definitions in run list order" do
node.run_list("test-with-deps::default", "test-with-circular-deps::default")
compiler.compile_resource_definitions
expect(LibraryLoadOrder.load_order).to eq(["dependency1-definition",
"dependency2-definition",
"test-with-deps-definition",
"circular-dep2-definition",
"circular-dep1-definition",
"test-with-circular-deps-definition"])
end
end
describe "loading recipes" do
# Tests for this behavior are in RunContext's tests
end
describe "listing cookbook order" do
it "should return an array of cookbook names as symbols without duplicates" do
node.run_list("test-with-circular-deps::default", "circular-dep1::default", "circular-dep2::default")
expect(compiler.cookbook_order).to eq([:"circular-dep2",
:"circular-dep1",
:"test-with-circular-deps"])
end
it "determines if a cookbook is in the list of cookbooks reachable by dependency" do
node.run_list("test-with-deps::default", "test-with-deps::server")
expect(compiler.cookbook_order).to eq([:dependency1, :dependency2, :"test-with-deps"])
expect(compiler.unreachable_cookbook?(:dependency1)).to be_falsey
expect(compiler.unreachable_cookbook?(:dependency2)).to be_falsey
expect(compiler.unreachable_cookbook?(:'test-with-deps')).to be_falsey
expect(compiler.unreachable_cookbook?(:'circular-dep1')).to be_truthy
expect(compiler.unreachable_cookbook?(:'circular-dep2')).to be_truthy
end
end
end
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