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require 'spec_helper'
describe Fission::Command::SnapshotList do
include_context 'command_setup'
before do
@target_vm = ['foo']
Fission::VM.stub(:new).and_return(@vm_mock)
@snap_list_response_mock = double('snap_list_response')
@vm_mock.stub(:name).and_return(@target_vm.first)
end
describe 'command_name' do
it 'should return the pretty command name' do
Fission::Command::SnapshotList.new.command_name.should == 'snapshot list'
end
end
describe 'execute' do
before do
@vm_mock.stub(:snapshots).and_return(@snap_list_response_mock)
end
subject { Fission::Command::SnapshotList }
[ [], ['--bar'] ].each do |args|
it_should_not_accept_arguments_of args, 'snapshot list'
end
it 'should output the list of snapshots if any exist' do
@snap_list_response_mock.stub_as_successful ['snap 1', 'snap 2', 'snap 3']
command = Fission::Command::SnapshotList.new @target_vm
command.execute
@string_io.string.should match /snap 1\nsnap 2\nsnap 3\n/
end
it 'should output that it could not find any snapshots if none exist' do
@snap_list_response_mock.stub_as_successful []
command = Fission::Command::SnapshotList.new @target_vm
command.execute
@string_io.string.should match /No snapshots found for VM '#{@target_vm.first}'/
end
it 'should output an error and exit if there was an error getting the list of snapshots' do
@snap_list_response_mock.stub_as_unsuccessful
command = Fission::Command::SnapshotList.new @target_vm
lambda { command.execute }.should raise_error SystemExit
@string_io.string.should match /There was an error listing the snapshots.+it blew up.+/m
end
end
describe 'help' do
it 'should output info for this command' do
output = Fission::Command::SnapshotList.help
output.should match /fission snapshot list TARGET_VM/
end
end
end
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