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# Author:: S.Cavallo (smcavallo@hotmail.com)
# 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/provider/package"
require "chef/provider/package/snap"
require "json"
describe Chef::Provider::Package::Snap do
let(:node) { Chef::Node.new }
let(:events) { Chef::EventDispatch::Dispatcher.new }
let(:run_context) { Chef::RunContext.new(node, {}, events) }
let(:package) { "hello" }
let(:source) { "/tmp/hello_20.snap" }
let(:new_resource) do
new_resource = Chef::Resource::SnapPackage.new(package)
new_resource.source source
new_resource
end
let(:provider) { Chef::Provider::Package::Snap.new(new_resource, run_context) }
let(:snap_status) do
stdout = <<~SNAP_S
path: "/tmp/hello_20.snap"
name: hello
summary: GNU Hello, the "hello world" snap
version: 2.10 -
SNAP_S
status = double(stdout: stdout, stderr: "", exitstatus: 0)
allow(status).to receive(:error!).with(no_args).and_return(false)
status
end
before(:each) do
allow(provider).to receive(:shell_out_compacted!).with("snap", "info", source, timeout: 900).and_return(snap_status)
end
# Example output from https://github.com/snapcore/snapd/wiki/REST-API
find_result_success = JSON.parse(File.read(File.join(CHEF_SPEC_DATA, "snap_package", "find_result_success.json")))
find_result_fail = JSON.parse(File.read(File.join(CHEF_SPEC_DATA, "snap_package", "find_result_failure.json")))
get_by_name_result_success = JSON.parse(File.read(File.join(CHEF_SPEC_DATA, "snap_package", "get_by_name_result_success.json")))
get_by_name_result_fail = JSON.parse(File.read(File.join(CHEF_SPEC_DATA, "snap_package", "get_by_name_result_failure.json")))
async_result_success = JSON.parse(File.read(File.join(CHEF_SPEC_DATA, "snap_package", "async_result_success.json")))
result_fail = JSON.parse(File.read(File.join(CHEF_SPEC_DATA, "snap_package", "result_failure.json")))
change_id_result = JSON.parse(File.read(File.join(CHEF_SPEC_DATA, "snap_package", "change_id_result.json")))
get_conf_success = JSON.parse(File.read(File.join(CHEF_SPEC_DATA, "snap_package", "get_conf_success.json")))
describe "#define_resource_requirements" do
before do
allow_any_instance_of(Chef::Provider::Package::Snap).to receive(:call_snap_api).with("GET", "/v2/snaps/#{package}").and_return(get_by_name_result_success)
end
it "should raise an exception if a source is supplied but not found when :install" do
allow(::File).to receive(:exist?).with(source).and_return(false)
expect { provider.run_action(:install) }.to raise_error(Chef::Exceptions::Package)
end
it "should raise an exception if a source is supplied but not found when :upgrade" do
allow(::File).to receive(:exist?).with(source).and_return(false)
expect { provider.run_action(:upgrade) }.to raise_error(Chef::Exceptions::Package)
end
end
describe "when using a local file source" do
let(:source) { "/tmp/hello_20.snap" }
before do
allow_any_instance_of(Chef::Provider::Package::Snap).to receive(:call_snap_api).with("GET", "/v2/snaps/#{package}").and_return(get_by_name_result_success)
end
it "should create a current resource with the name of the new_resource" do
provider.load_current_resource
expect(provider.current_resource.package_name).to eq("hello")
end
describe "gets the candidate version from the source package" do
def check_version(version)
provider.load_current_resource
expect(provider.current_resource.package_name).to eq("hello")
expect(provider.get_current_versions).to eq(["1.15.71"])
expect(provider.candidate_version).to eq([version])
end
it "checks the installed and local candidate versions" do
check_version("2.10")
end
it "generates multipart form data" do
expected = <<~SNAP_S
Host:
Content-Type: multipart/form-data; boundary=foo
Content-Length: 20480
--foo
Content-Disposition: form-data; name="action"
install
--foo
Content-Disposition: form-data; name="devmode"
true
--foo
Content-Disposition: form-data; name="snap"; filename="hello-world_27.snap"
<20480 bytes of snap file data>
--foo
SNAP_S
options = {}
options["devmode"] = true
path = "hello-world_27.snap"
content_length = "20480"
result = provider.send(:generate_multipart_form_data, "foo", "install", options, path, content_length)
expect(result).to eq(expected)
end
end
end
describe "when using the snap store" do
let(:source) { nil }
describe "gets the candidate version from the snap store" do
before do
allow_any_instance_of(Chef::Provider::Package::Snap).to receive(:call_snap_api).with("GET", "/v2/find?name=#{package}").and_return(find_result_success)
allow_any_instance_of(Chef::Provider::Package::Snap).to receive(:call_snap_api).with("GET", "/v2/snaps/#{package}").and_return(get_by_name_result_success)
end
def check_version(version)
provider.load_current_resource
expect(provider.current_resource.package_name).to eq("hello")
expect(provider.get_current_versions).to eq(["1.15.71"])
expect(provider.candidate_version).to eq([version])
end
it "checks the installed and store candidate versions" do
check_version("2.10")
end
end
describe "fails to get the candidate version from the snap store" do
before do
allow_any_instance_of(Chef::Provider::Package::Snap).to receive(:call_snap_api).with("GET", "/v2/find?name=#{package}").and_return(find_result_fail)
allow_any_instance_of(Chef::Provider::Package::Snap).to receive(:call_snap_api).with("GET", "/v2/snaps/#{package}").and_return(get_by_name_result_fail)
end
it "throws an error if candidate version not found" do
provider.load_current_resource
expect { provider.candidate_version }.to raise_error(Chef::Exceptions::Package)
end
it "does not throw an error if installed version not found" do
provider.load_current_resource
expect(provider.get_current_versions).to eq([nil])
end
end
end
describe "when calling async operations" do
it "should should throw if the async response is an error" do
expect { provider.send(:get_id_from_async_response, result_fail) }.to raise_error(RuntimeError)
end
it "should get the id from an async response" do
result = provider.send(:get_id_from_async_response, async_result_success)
expect(result).to eq("401")
end
it "should wait for change completion" do
result = provider.send(:get_id_from_async_response, async_result_success)
expect(result).to eq("401")
end
end
describe Chef::Provider::Package::Snap do
it "should post the correct json" do
snap_names = ["hello"]
action = "install"
channel = "stable"
options = {}
revision = nil
actual = provider.send(:generate_snap_json, snap_names, action, channel, options, revision)
expect(actual).to eq("action" => "install", "snaps" => ["hello"], "channel" => "stable")
end
end
end
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