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#
# 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"
require "chef/mixin/versioned_api"
describe Chef::Mixin::VersionedAPI do
let(:dummy_class) { Class.new { extend Chef::Mixin::VersionedAPI } }
it "allows a class to declare the minimum supported API version" do
dummy_class.minimum_api_version 3
expect(dummy_class.minimum_api_version).to eq(3)
end
end
describe Chef::Mixin::VersionedAPIFactory do
class V1Class; extend Chef::Mixin::VersionedAPI; minimum_api_version 1; end
class V2Class; extend Chef::Mixin::VersionedAPI; minimum_api_version 2; end
class V3Class; extend Chef::Mixin::VersionedAPI; minimum_api_version 3; end
let(:factory_class) { Class.new { extend Chef::Mixin::VersionedAPIFactory } }
before do
Chef::ServerAPIVersions.instance.reset!
end
describe "#add_versioned_api_class" do
it "adds a target class" do
factory_class.add_versioned_api_class V1Class
expect(factory_class.versioned_interfaces).to eq([V1Class])
end
it "can be called many times" do
factory_class.add_versioned_api_class V1Class
factory_class.add_versioned_api_class V2Class
expect(factory_class.versioned_interfaces).to eq([V1Class, V2Class])
end
end
describe "#versioned_api_class" do
describe "with no known versions" do
it "with one class it returns that class" do
factory_class.add_versioned_api_class V2Class
expect(factory_class.versioned_api_class.minimum_api_version).to eq(2)
end
it "with many classes it returns the highest minimum version" do
factory_class.add_versioned_api_class V1Class
factory_class.add_versioned_api_class V2Class
factory_class.add_versioned_api_class V3Class
expect(factory_class.versioned_api_class.minimum_api_version).to eq(3)
end
end
describe "with a known version" do
it "with one class it returns that class" do
Chef::ServerAPIVersions.instance.set_versions({ "min_version" => 0, "max_version" => 2 })
factory_class.add_versioned_api_class V2Class
expect(factory_class.versioned_api_class.minimum_api_version).to eq(2)
end
it "with a maximum version it returns the highest possible versioned class" do
Chef::ServerAPIVersions.instance.set_versions({ "min_version" => 0, "max_version" => 2 })
factory_class.add_versioned_api_class V1Class
factory_class.add_versioned_api_class V2Class
factory_class.add_versioned_api_class V3Class
expect(factory_class.versioned_api_class.minimum_api_version).to eq(2)
end
end
it "with no classes it returns nil" do
expect(factory_class.versioned_api_class).to be_nil
end
end
describe "#best_request_version" do
it "returns a String" do
factory_class.add_versioned_api_class V2Class
expect(factory_class.best_request_version).to be_a(String)
end
it "returns the most relevant version" do
factory_class.add_versioned_api_class V2Class
factory_class.add_versioned_api_class V3Class
expect(factory_class.best_request_version).to eq("3")
end
end
describe "#possible_requests" do
it "returns the number of registered classes" do
factory_class.add_versioned_api_class V2Class
factory_class.add_versioned_api_class V3Class
expect(factory_class.possible_requests).to eq(2)
end
end
describe "#new" do
it "creates an instance of the versioned class" do
factory_class.add_versioned_api_class V2Class
expect { factory_class.new }.to_not raise_error
expect(factory_class.new.class).to eq(V2Class)
end
end
describe "#def_versioned_delegator" do
it "delegates the method to the correct class" do
factory_class.add_versioned_api_class V2Class
factory_class.def_versioned_delegator("test_method")
expect(V2Class).to receive(:test_method).with("test message").and_return(true)
factory_class.test_method("test message")
end
end
end
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