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#
# Author:: Tyler Cloke (tyler@chef.io)
# Copyright:: Copyright 2015-2016, 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"
describe Chef::Mixin::ApiVersionRequestHandling do
let(:dummy_class) { Class.new { include Chef::Mixin::ApiVersionRequestHandling } }
let(:object) { dummy_class.new }
describe ".server_client_api_version_intersection" do
let(:default_supported_client_versions) { [0, 1, 2] }
context "when the response code is not 406" do
let(:response) { OpenStruct.new(code: "405") }
let(:exception) { Net::HTTPClientException.new("405 Something Else", response) }
it "returns nil" do
expect(object.server_client_api_version_intersection(exception, default_supported_client_versions))
.to be_nil
end
end # when the response code is not 406
context "when the response code is 406" do
let(:response) { OpenStruct.new(code: "406") }
let(:exception) { Net::HTTPClientException.new("406 Not Acceptable", response) }
context "when x-ops-server-api-version header does not exist" do
it "returns nil" do
expect(object.server_client_api_version_intersection(exception, default_supported_client_versions))
.to be_nil
end
end # when x-ops-server-api-version header does not exist
context "when x-ops-server-api-version header exists" do
let(:min_server_version) { 2 }
let(:max_server_version) { 4 }
let(:return_hash) do
{
"min_version" => min_server_version,
"max_version" => max_server_version,
}
end
before(:each) do
allow(response).to receive(:[]).with("x-ops-server-api-version").and_return(Chef::JSONCompat.to_json(return_hash))
end
context "when there is no intersection between client and server versions" do
shared_examples_for "no intersection between client and server versions" do
it "return an array" do
expect(object.server_client_api_version_intersection(exception, supported_client_versions))
.to be_a_kind_of(Array)
end
it "returns an empty array" do
expect(object.server_client_api_version_intersection(exception, supported_client_versions).length)
.to eq(0)
end
end
context "when all the versions are higher than the max" do
it_should_behave_like "no intersection between client and server versions" do
let(:supported_client_versions) { [5, 6, 7] }
end
end
context "when all the versions are lower than the min" do
it_should_behave_like "no intersection between client and server versions" do
let(:supported_client_versions) { [0, 1] }
end
end
end # when there is no intersection between client and server versions
context "when there is an intersection between client and server versions" do
context "when multiple versions intersect" do
let(:supported_client_versions) { [1, 2, 3, 4, 5] }
it "includes all of the intersection" do
expect(object.server_client_api_version_intersection(exception, supported_client_versions))
.to eq([2, 3, 4])
end
end # when multiple versions intersect
context "when only the min client version intersects" do
let(:supported_client_versions) { [0, 1, 2] }
it "includes the intersection" do
expect(object.server_client_api_version_intersection(exception, supported_client_versions))
.to eq([2])
end
end # when only the min client version intersects
context "when only the max client version intersects" do
let(:supported_client_versions) { [4, 5, 6] }
it "includes the intersection" do
expect(object.server_client_api_version_intersection(exception, supported_client_versions))
.to eq([4])
end
end # when only the max client version intersects
end # when there is an intersection between client and server versions
end # when x-ops-server-api-version header exists
end # when the response code is 406
end # .server_client_api_version_intersection
end # Chef::Mixin::ApiVersionRequestHandling
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