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#
# Author:: Claire McQuin (<claire@opscode.com>)
# Copyright:: Copyright (c) 2013 Opscode, 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 File.expand_path(File.dirname(__FILE__) + '/../spec_helper.rb')
describe Ohai::Loader do
before(:each) do
@ohai = Ohai::System.new
end
describe "#initialize" do
it "should return an Ohai::Loader object" do
loader = Ohai::Loader.new(@ohai)
loader.should be_a_kind_of(Ohai::Loader)
end
end
describe "#load_plugin" do
before(:each) do
@name = :Test
@v6name = "test"
@path = "test.rb"
@loader = Ohai::Loader.new(@ohai)
@loader.stub(:collect_provides).and_return({})
end
it "should log a warning if a plugin cannot be loaded" do
Ohai::Log.should_receive(:warn).with(/Unable to open or read plugin/)
IO.stub(:read).with(anything()).and_raise(IOError)
@loader.load_plugin("")
end
it "should detect a version 6 plugin and emit deprecation message" do
contents = <<EOF
provides "test"
test Mash.new
EOF
IO.stub(:read).with(@path).and_return(contents)
Ohai::Log.should_receive(:warn).with(/[DEPRECATION]/)
plugin = @loader.load_plugin(@path, @v6name)
plugin.version.should eql(:version6)
end
it "should detect a version 7 plugin" do
contents = <<EOF
Ohai.plugin(:#{@name}) do
end
EOF
IO.stub(:read).with(@path).and_return(contents)
plugin = @loader.load_plugin(@path)
plugin.version.should eql(:version7)
end
it "should log a warning from NoMethodError when plugin uses a non dsl command" do
contents = <<EOF
Ohai.plugin(:#{@name}) do
requires "test"
end
EOF
IO.stub(:read).with(@path).and_return(contents)
Ohai::Log.should_receive(:warn).with(/[UNSUPPORTED OPERATION]/)
@loader.load_plugin(@path)
end
end
describe "#collect_provides" do
before(:each) do
@name = :Test
@path = "test.rb"
@loader = Ohai::Loader.new(@ohai)
end
it "should add provided attributes to Ohai" do
klass = Ohai.plugin(@name) { provides("attr") }
plugin = klass.new(@ohai, @path)
@loader.collect_provides(plugin)
@ohai.attributes.should have_key(:attr)
end
it "should add provided subattributes to Ohai" do
klass = Ohai.plugin(@name) { provides("attr/sub") }
plugin = klass.new(@ohai, @plath)
@loader.collect_provides(plugin)
@ohai.attributes.should have_key(:attr)
@ohai.attributes[:attr].should have_key(:sub)
end
it "should collect the unique providers for an attribute" do
n = 3
klass = Ohai.plugin(@name) { provides("attr") }
plugins = []
n.times do
plugins << klass.new(@ohai, @path)
end
plugins.each { |plugin| @loader.collect_provides(plugin) }
@ohai.attributes[:attr][:_providers].should eql(plugins)
end
end
end
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