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capistrano/test/configuration/callbacks_test.rb

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require "#{File.dirname(__FILE__)}/../utils"
require 'capistrano/configuration/callbacks'
class ConfigurationCallbacksTest < Test::Unit::TestCase
class MockConfig
attr_reader :original_initialize_called
attr_reader :called
def initialize
@original_initialize_called = true
@called = []
end
def execute_task(task)
@called << task
end
include Capistrano::Configuration::Callbacks
end
def setup
@config = MockConfig.new
@config.stubs(:logger).returns(stub_everything("logger"))
end
def test_initialize_should_initialize_callbacks_collection
assert @config.original_initialize_called
assert @config.callbacks.empty?
end
def test_before_should_delegate_to_on
@config.expects(:on).with(:before, :foo, "bing:blang", {:only => :bar, :zip => :zing})
@config.before :bar, :foo, "bing:blang", :zip => :zing
end
def test_after_should_delegate_to_on
@config.expects(:on).with(:after, :foo, "bing:blang", {:only => :bar, :zip => :zing})
@config.after :bar, :foo, "bing:blang", :zip => :zing
end
def test_on_with_single_reference_should_add_task_callback
@config.on :before, :a_test
assert_equal 1, @config.callbacks[:before].length
assert_equal :a_test, @config.callbacks[:before][0].source
@config.expects(:find_and_execute_task).with(:a_test)
@config.callbacks[:before][0].call
end
def test_on_with_multi_reference_should_add_all_as_task_callback
@config.on :before, :first, :second, :third
assert_equal 3, @config.callbacks[:before].length
assert_equal %w(first second third), @config.callbacks[:before].map { |c| c.source.to_s }
end
def test_on_with_block_should_add_block_as_proc_callback
called = false
@config.on(:before) { called = true }
assert_equal 1, @config.callbacks[:before].length
assert_instance_of Proc, @config.callbacks[:before][0].source
@config.callbacks[:before][0].call
assert called
end
def test_on_with_single_only_should_set_only_as_string_array_on_all_references
@config.on :before, :first, "second:third", :only => :primary
assert_equal 2, @config.callbacks[:before].length
assert @config.callbacks[:before].all? { |c| c.only == %w(primary) }
end
def test_on_with_multi_only_should_set_only_as_string_array_on_all_references
@config.on :before, :first, "second:third", :only => [:primary, "other:one"]
assert_equal 2, @config.callbacks[:before].length
assert @config.callbacks[:before].all? { |c| c.only == %w(primary other:one) }
end
def test_on_with_single_except_should_set_except_as_string_array_on_all_references
@config.on :before, :first, "second:third", :except => :primary
assert_equal 2, @config.callbacks[:before].length
assert @config.callbacks[:before].all? { |c| c.except == %w(primary) }
end
def test_on_with_multi_except_should_set_except_as_string_array_on_all_references
@config.on :before, :first, "second:third", :except => [:primary, "other:one"]
assert_equal 2, @config.callbacks[:before].length
assert @config.callbacks[:before].all? { |c| c.except == %w(primary other:one) }
end
def test_on_with_only_and_block_should_set_only_as_string_array
@config.on(:before, :only => :primary) { blah }
assert_equal 1, @config.callbacks[:before].length
assert_equal %w(primary), @config.callbacks[:before].first.only
end
def test_on_with_except_and_block_should_set_except_as_string_array
@config.on(:before, :except => :primary) { blah }
assert_equal 1, @config.callbacks[:before].length
assert_equal %w(primary), @config.callbacks[:before].first.except
end
def test_trigger_without_constraints_should_invoke_all_callbacks
task = stub(:fully_qualified_name => "any:old:thing")
@config.on(:before, :first, "second:third")
@config.on(:after, :another, "and:another")
@config.expects(:find_and_execute_task).with(:first)
@config.expects(:find_and_execute_task).with("second:third")
@config.expects(:find_and_execute_task).with(:another).never
@config.expects(:find_and_execute_task).with("and:another").never
@config.trigger(:before, task)
end
def test_trigger_with_only_constraint_should_invoke_only_matching_callbacks
task = stub(:fully_qualified_name => "any:old:thing")
@config.on(:before, :first)
@config.on(:before, "second:third", :only => "any:old:thing")
@config.on(:before, "this:too", :only => "any:other:thing")
@config.on(:after, :another, "and:another")
@config.expects(:find_and_execute_task).with(:first)
@config.expects(:find_and_execute_task).with("second:third")
@config.expects(:find_and_execute_task).with("this:too").never
@config.expects(:find_and_execute_task).with(:another).never
@config.expects(:find_and_execute_task).with("and:another").never
@config.trigger(:before, task)
end
def test_trigger_with_except_constraint_should_invoke_anything_but_matching_callbacks
task = stub(:fully_qualified_name => "any:old:thing")
@config.on(:before, :first)
@config.on(:before, "second:third", :except => "any:old:thing")
@config.on(:before, "this:too", :except => "any:other:thing")
@config.on(:after, :another, "and:another")
@config.expects(:find_and_execute_task).with(:first)
@config.expects(:find_and_execute_task).with("second:third").never
@config.expects(:find_and_execute_task).with("this:too")
@config.expects(:find_and_execute_task).with(:another).never
@config.expects(:find_and_execute_task).with("and:another").never
@config.trigger(:before, task)
end
def test_trigger_without_task_should_invoke_all_callbacks_for_that_event
task = stub(:fully_qualified_name => "any:old:thing")
@config.on(:before, :first)
@config.on(:before, "second:third", :except => "any:old:thing")
@config.on(:before, "this:too", :except => "any:other:thing")
@config.on(:after, :another, "and:another")
@config.expects(:find_and_execute_task).with(:first)
@config.expects(:find_and_execute_task).with("second:third")
@config.expects(:find_and_execute_task).with("this:too")
@config.expects(:find_and_execute_task).with(:another).never
@config.expects(:find_and_execute_task).with("and:another").never
@config.trigger(:before)
end
def test_execute_task_without_named_hooks_should_just_call_task
ns = stub("namespace", :default_task => nil, :name => "old", :fully_qualified_name => "any:old")
task = stub(:fully_qualified_name => "any:old:thing", :name => "thing", :namespace => ns)
ns.stubs(:search_task).returns(nil)
@config.execute_task(task)
assert_equal [task], @config.called
end
def test_execute_task_with_named_before_hook_should_call_named_before_hook
ns = stub("namespace", :default_task => nil, :name => "old", :fully_qualified_name => "any:old")
task = stub(:fully_qualified_name => "any:old:thing", :name => "thing", :namespace => ns)
before_task = stub(:fully_qualified_name => "any:old:before_thing", :name => "before_thing", :namespace => ns)
ns.stubs(:search_task).returns(nil)
ns.expects(:search_task).with("before_thing").returns(before_task)
@config.execute_task(task)
assert_equal [before_task, task], @config.called
end
def test_execute_task_with_named_after_hook_should_call_named_after_hook
ns = stub("namespace", :default_task => nil, :name => "old", :fully_qualified_name => "any:old")
task = stub(:fully_qualified_name => "any:old:thing", :name => "thing", :namespace => ns)
after_task = stub(:fully_qualified_name => "any:old:after_thing", :name => "after_thing", :namespace => ns)
ns.stubs(:search_task).returns(nil)
ns.expects(:search_task).with("after_thing").returns(after_task)
@config.execute_task(task)
assert_equal [task, after_task], @config.called
end
def test_execute_task_with_on_hooks_should_trigger_hooks_around_task
ns = stub("namespace", :default_task => nil, :name => "old", :fully_qualified_name => "any:old")
task = stub(:fully_qualified_name => "any:old:thing", :name => "thing", :namespace => ns)
before_task = stub(:fully_qualified_name => "any:old:before_thing", :name => "before_thing", :namespace => ns)
after_task = stub(:fully_qualified_name => "any:old:after_thing", :name => "after_thing", :namespace => ns)
ns.stubs(:search_task).returns(nil)
ns.expects(:search_task).with("before_thing").returns(before_task)
ns.expects(:search_task).with("after_thing").returns(after_task)
@config.before("any:old:thing", :first_this, :then_this)
@config.after("any:old:thing", :and_then_this, :lastly_this)
[:first_this, :then_this, :and_then_this, :lastly_this].each do |t|
@config.expects(:find_and_execute_task).with(t)
end
@config.execute_task(task)
end
end