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capistrano/test/configuration/execution_test.rb

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6.3 KiB
Ruby

require "#{File.dirname(__FILE__)}/../utils"
require 'capistrano/configuration/execution'
require 'capistrano/task_definition'
class ConfigurationExecutionTest < Test::Unit::TestCase
class MockConfig
attr_reader :tasks, :namespaces, :fully_qualified_name, :parent
attr_reader :state, :original_initialize_called
attr_accessor :logger, :default_task
def initialize(options={})
@original_initialize_called = true
@tasks = {}
@namespaces = {}
@state = {}
@fully_qualified_name = options[:fqn]
@parent = options[:parent]
@logger = options.delete(:logger)
end
include Capistrano::Configuration::Execution
end
def setup
@config = MockConfig.new(:logger => stub(:debug => nil, :info => nil, :important => nil))
@config.stubs(:search_task).returns(nil)
end
def test_initialize_should_initialize_collections
assert_nil @config.rollback_requests
assert @config.original_initialize_called
assert @config.task_call_frames.empty?
end
def test_execute_task_should_populate_call_stack
task = new_task @config, :testing
assert_nothing_raised { @config.execute_task(task) }
assert_equal %w(testing), @config.state[:testing][:stack]
assert_nil @config.state[:testing][:history]
assert @config.task_call_frames.empty?
end
def test_nested_execute_task_should_add_to_call_stack
testing = new_task @config, :testing
outer = new_task(@config, :outer) { execute_task(testing) }
assert_nothing_raised { @config.execute_task(outer) }
assert_equal %w(outer testing), @config.state[:testing][:stack]
assert_nil @config.state[:testing][:history]
assert @config.task_call_frames.empty?
end
def test_execute_task_should_execute_in_scope_of_tasks_parent
ns = stub("namespace", :tasks => {}, :default_task => nil, :fully_qualified_name => "ns")
ns.expects(:instance_eval)
testing = new_task ns, :testing
@config.execute_task(testing)
end
def test_transaction_outside_of_task_should_raise_exception
assert_raises(ScriptError) { @config.transaction {} }
end
def test_transaction_without_block_should_raise_argument_error
testing = new_task(@config, :testing) { transaction }
assert_raises(ArgumentError) { @config.execute_task(testing) }
end
def test_transaction_should_initialize_transaction_history
@config.state[:inspector] = stack_inspector
testing = new_task(@config, :testing) { transaction { instance_eval(&state[:inspector]) } }
@config.execute_task(testing)
assert_equal [], @config.state[:testing][:history]
end
def test_transaction_from_within_transaction_should_not_start_new_transaction
third = new_task(@config, :third, &stack_inspector)
second = new_task(@config, :second) { transaction { execute_task(third) } }
first = new_task(@config, :first) { transaction { execute_task(second) } }
# kind of fragile...not sure how else to check that transaction was only
# really run twice...but if the transaction was REALLY run, logger.info
# will be called once when it starts, and once when it finishes.
@config.logger = mock()
@config.logger.stubs(:debug)
@config.logger.expects(:info).times(2)
@config.execute_task(first)
end
def test_on_rollback_should_have_no_effect_outside_of_transaction
aaa = new_task(@config, :aaa) { on_rollback { state[:rollback] = true }; raise "boom" }
assert_raises(RuntimeError) { @config.execute_task(aaa) }
assert_nil @config.state[:rollback]
end
def test_exception_raised_in_transaction_should_call_all_registered_rollback_handlers_in_reverse_order
aaa = new_task(@config, :aaa) { on_rollback { (state[:rollback] ||= []) << :aaa } }
bbb = new_task(@config, :bbb) { on_rollback { (state[:rollback] ||= []) << :bbb } }
ccc = new_task(@config, :ccc) {}
ddd = new_task(@config, :ddd) { on_rollback { (state[:rollback] ||= []) << :ddd }; execute_task(bbb); execute_task(ccc) }
eee = new_task(@config, :eee) { transaction { execute_task(ddd); execute_task(aaa); raise "boom" } }
assert_raises(RuntimeError) do
@config.execute_task(eee)
end
assert_equal [:aaa, :bbb, :ddd], @config.state[:rollback]
assert_nil @config.rollback_requests
assert @config.task_call_frames.empty?
end
def test_exception_during_rollback_should_simply_be_logged_and_ignored
aaa = new_task(@config, :aaa) { on_rollback { state[:aaa] = true; raise LoadError, "ouch" }; execute_task(bbb) }
bbb = new_task(@config, :bbb) { raise MadError, "boom" }
ccc = new_task(@config, :ccc) { transaction { execute_task(aaa) } }
assert_raises(NameError) do
@config.execute_task(ccc)
end
assert @config.state[:aaa]
end
def test_find_and_execute_task_should_raise_error_when_task_cannot_be_found
@config.expects(:find_task).with("path:to:task").returns(nil)
assert_raises(Capistrano::NoSuchTaskError) { @config.find_and_execute_task("path:to:task") }
end
def test_find_and_execute_task_should_execute_task_when_task_is_found
@config.expects(:find_task).with("path:to:task").returns(:found)
@config.expects(:execute_task).with(:found)
assert_nothing_raised { @config.find_and_execute_task("path:to:task") }
end
def test_find_and_execute_task_with_before_option_should_trigger_callback
@config.expects(:find_task).with("path:to:task").returns(:found)
@config.expects(:trigger).with(:incoming, :found)
@config.expects(:execute_task).with(:found)
@config.find_and_execute_task("path:to:task", :before => :incoming)
end
def test_find_and_execute_task_with_after_option_should_trigger_callback
@config.expects(:find_task).with("path:to:task").returns(:found)
@config.expects(:trigger).with(:outgoing, :found)
@config.expects(:execute_task).with(:found)
@config.find_and_execute_task("path:to:task", :after => :outgoing)
end
private
def stack_inspector
Proc.new do
(state[:trail] ||= []) << current_task.fully_qualified_name
data = state[current_task.name] = {}
data[:stack] = task_call_frames.map { |frame| frame.task.fully_qualified_name }
data[:history] = rollback_requests && rollback_requests.map { |frame| frame.task.fully_qualified_name }
end
end
def new_task(namespace, name, options={}, &block)
block ||= stack_inspector
namespace.tasks[name] = Capistrano::TaskDefinition.new(name, namespace, &block)
end
end