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#
# Author:: Tim Smith <tsmith@chef.io>
# 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 CONDIT"Net::HTTP Response"NS 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 "ohai/mixin/azure_metadata"
describe Ohai::Mixin::AzureMetadata do
let(:mixin) do
mixin = Object.new.extend(::Ohai::Mixin::AzureMetadata)
mixin
end
before do
logger = instance_double("Mixlib::Log::Child", trace: nil, debug: nil, warn: nil)
allow(mixin).to receive(:logger).and_return(logger)
end
describe "#http_get" do
it "gets the passed URI" do
http_mock = double("http")
allow(http_mock).to receive(:read_timeout=)
allow(Net::HTTP).to receive(:start).with("169.254.169.254").and_return(http_mock)
expect(http_mock).to receive(:get).with("http://www.chef.io", { "Metadata" => "true" })
mixin.http_get("http://www.chef.io")
end
end
describe "#best_api_version" do
before do
allow(mixin).to receive(:http_get).and_return(response)
end
context "when azure returns versions we know about" do
let(:response) { double("Net::HTTP Response", body: "{\"error\":\"Bad request. api-version was not specified in the request. For more information refer to aka.ms/azureimds\",\"newest-versions\":[\"2019-08-15\",\"2019-08-01\",\"2019-07-15\"]}", code: "400") }
it "returns the most recent version" do
expect(mixin.best_api_version).to eq("2019-08-15")
end
end
context "when azure doesn't return any versions we know about" do
let(:response) { double("Net::HTTP Response", body: "{\"error\":\"Bad request. api-version was not specified in the request. For more information refer to aka.ms/azureimds\",\"newest-versions\":[\"2021-01-02\",\"2020-08-01\",\"2020-07-15\"]}", code: "400") }
it "returns the most recent version we know of" do
expect(mixin.best_api_version).to eq("2019-11-01")
end
end
context "when the response code is 404" do
let(:response) { double("Net::HTTP Response", code: "404") }
it "returns the most recent version we know of" do
expect(mixin.best_api_version).to eq("2019-11-01")
end
end
context "when the response code is unexpected" do
let(:response) { double("Net::HTTP Response", body: "{\"error\":\"Bad request. api-version was not specified in the request. For more information refer to aka.ms/azureimds\",\"newest-versions\":[\"2021-01-02\",\"2020-08-01\",\"2020-07-15\"]}", code: "418") }
it "raises an error" do
expect { mixin.best_api_version }.to raise_error(RuntimeError)
end
end
end
describe "#fetch_metadata" do
before do
allow(mixin).to receive(:best_api_version).and_return("2019-11-01")
end
it "returns an empty hash given a non-200 response" do
http_mock = double("http", { code: "500" })
allow(mixin).to receive(:http_get).and_return(http_mock)
expect(mixin.logger).to receive(:warn)
vals = mixin.fetch_metadata
expect(vals).to eq(nil)
end
it "returns an empty hash given invalid JSON response" do
http_mock = double("http", { code: "200", body: '{ "foo" "bar"}' })
allow(mixin).to receive(:http_get).and_return(http_mock)
expect(mixin.logger).to receive(:warn)
vals = mixin.fetch_metadata
expect(vals).to eq(nil)
end
it "returns a populated hash given valid JSON response" do
http_mock = double("http", { code: "200", body: '{ "foo": "bar"}' })
allow(mixin).to receive(:http_get).and_return(http_mock)
expect(mixin.logger).not_to receive(:warn)
vals = mixin.fetch_metadata
expect(vals).to eq({ "foo" => "bar" })
end
end
end
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