vagrant-lxc-ng/spec/unit/driver_spec.rb

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require 'unit_helper'
require 'vagrant'
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require 'vagrant-lxc/driver'
require 'vagrant-lxc/driver/cli'
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describe Vagrant::LXC::Driver do
describe 'container name validation' do
let(:unknown_container) { described_class.new('unknown', nil, cli) }
let(:valid_container) { described_class.new('valid', nil, cli) }
let(:new_container) { described_class.new(nil, nil) }
let(:cli) { instance_double('Vagrant::LXC::Driver::CLI', list: ['valid']) }
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it 'raises a ContainerNotFound error if an unknown container name gets provided' do
expect {
unknown_container.validate!
}.to raise_error
end
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it 'does not raise a ContainerNotFound error if a valid container name gets provided' do
expect {
valid_container.validate!
}.not_to raise_error
end
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it 'does not raise a ContainerNotFound error if nil is provider as name' do
expect {
new_container.validate!
}.not_to raise_error
end
end
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describe 'creation' do
let(:name) { 'container-name' }
let(:template_name) { 'auto-assigned-template-id' }
let(:template_path) { '/path/to/lxc-template-from-box' }
let(:template_opts) { {'--some' => 'random-option'} }
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let(:config_file) { '/path/to/lxc-config-from-box' }
let(:rootfs_tarball) { '/path/to/cache/rootfs.tar.gz' }
let(:cli) { instance_double('Vagrant::LXC::Driver::CLI', :create => true, :name= => true) }
subject { described_class.new(nil, nil, cli) }
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before do
subject.stub(:import_template).and_yield(template_name)
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subject.create name, template_path, config_file, template_opts
end
it 'sets the cli object container name' do
cli.should have_received(:name=).with(name)
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end
it 'creates container with the right arguments' do
cli.should have_received(:create).with(
template_name,
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config_file,
template_opts
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)
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end
end
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describe 'destruction' do
let(:cli) { instance_double('Vagrant::LXC::Driver::CLI', destroy: true) }
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subject { described_class.new('name', nil, cli) }
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before { subject.destroy }
it 'delegates to cli object' do
cli.should have_received(:destroy)
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end
end
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describe 'start' do
let(:customizations) { [['a', '1'], ['b', '2']] }
let(:internal_customization) { ['internal', 'customization'] }
let(:cli) { instance_double('Vagrant::LXC::Driver::CLI', start: true) }
subject { described_class.new('name', nil, cli) }
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before do
cli.stub(:transition_to).and_yield(cli)
subject.customizations << internal_customization
subject.start(customizations)
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end
it 'starts container with configured customizations' do
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cli.should have_received(:start).with(customizations + [internal_customization], nil)
end
it 'expects a transition to running state to take place' do
cli.should have_received(:transition_to).with(:running)
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end
end
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describe 'halt' do
let(:cli) { instance_double('Vagrant::LXC::Driver::CLI', shutdown: true) }
subject { described_class.new('name', nil, cli) }
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before do
cli.stub(:transition_to).and_yield(cli)
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end
it 'delegates to cli shutdown' do
cli.should_receive(:shutdown)
subject.forced_halt
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end
it 'expects a transition to running state to take place' do
cli.should_receive(:transition_to).with(:stopped)
subject.forced_halt
end
it 'attempts to force the container to stop in case a shutdown doesnt work' do
cli.stub(:shutdown).and_raise(Vagrant::LXC::Driver::CLI::TargetStateNotReached.new :target, :source)
cli.should_receive(:transition_to).with(:stopped).twice
cli.should_receive(:stop)
subject.forced_halt
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end
end
describe 'state' do
let(:cli_state) { :something }
let(:cli) { instance_double('Vagrant::LXC::Driver::CLI', state: cli_state) }
subject { described_class.new('name', nil, cli) }
it 'delegates to cli' do
subject.state.should == cli_state
end
end
pending 'assigned ip' do
# This ip is set on the sample-ip-addr-output fixture
let(:ip) { "10.0.254.137" }
let(:ifconfig_output) { File.read('spec/fixtures/sample-ip-addr-output') }
let(:cli) { instance_double('Vagrant::LXC::Driver::CLI', :attach => ifconfig_output) }
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subject { described_class.new('name', cli) }
context 'when ip for eth0 gets returned from lxc-attach call' do
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it 'gets parsed from `ip addr` output' do
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subject.assigned_ip.should == ip
cli.should have_received(:attach).with(
'/sbin/ip',
'-4',
'addr',
'show',
'scope',
'global',
'eth0',
namespaces: 'network'
)
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end
end
end
describe 'folder sharing' do
let(:shared_folder) { {guestpath: '/vagrant', hostpath: '/path/to/host/dir'} }
let(:folders) { [shared_folder] }
let(:rootfs_path) { Pathname('/path/to/rootfs') }
let(:expected_guest_path) { "#{rootfs_path}/vagrant" }
let(:sudo_wrapper) { instance_double('Vagrant::LXC::SudoWrapper', run: true) }
subject { described_class.new('name', sudo_wrapper) }
before do
subject.stub(rootfs_path: rootfs_path, system: true)
subject.share_folders(folders)
end
it "creates guest folder under container's rootfs" do
sudo_wrapper.should have_received(:run).with("mkdir", "-p", expected_guest_path)
end
it 'adds a mount.entry to its local customizations' do
subject.customizations.should include [
'mount.entry',
"#{shared_folder[:hostpath]} #{expected_guest_path} none bind 0 0"
]
end
end
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end