as there are no more local changes in the hooks’ source, it can be unvendored and used as gem
This commit is contained in:
Nico Hagenburger
parent
2ad91339bb
commit
d6f9e8c640
20 changed files with 2 additions and 934 deletions
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@ -10,7 +10,7 @@ require 'active_support/json'
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require 'active_support/core_ext/integer/inflections'
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# Simple callback library
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require 'vendored-middleman-deps/hooks-0.3.3/lib/hooks'
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require 'hooks'
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# Our custom logger
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require 'middleman-core/logger'
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@ -1,2 +0,0 @@
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Gemfile.lock
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@ -1,5 +0,0 @@
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language: ruby
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rvm:
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- 1.8.7
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- 1.9.3
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- 2.0.0
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@ -1,33 +0,0 @@
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## 0.3.3
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* Fix a bug where the hook writer method (e.g. `#after_dark`) wasn't available on the instance even when `InstanceHooks` was included.
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## 0.3.2
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* Added `Hooks::InstanceHooks` to add hooks and/or callbacks on instance level. Thanks to @mpapis for that suggestion.
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## 0.3.1
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* Fix a bug, string hook names are now treated as symbols.
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## 0.3.0
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* The callback chain can now be halted by configuring the hook as `halts_on_falsey: true` and returning `nil` or `false` from the callback.
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* Internal refactorings: hooks are now encapsulated in `Hook` instances and run their callback chains.
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## 0.2.2
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* `#run_hook` now returns the list of callback results.
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## 0.2.1
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* You can now pass multiple hook names to `#define_hooks`.
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## 0.2.0
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h3. Changes
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* Callback blocks are now executed on the instance using `instance_exec`. If you need to access the class (former context) use `self.class`.
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## 0.1.4
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* An uninitialized `inheritable_attr` doesn't crash since it is not cloned anymore. Note that an uncloneable attribute value still causes an exception.
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@ -1,3 +0,0 @@
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source 'https://rubygems.org'
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gemspec
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@ -1,20 +0,0 @@
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Copyright (c) 2011-2013 Nick Sutterer
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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@ -1,202 +0,0 @@
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# Hooks
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_Generic hooks with callbacks for Ruby._
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## Introduction
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_Hooks_ lets you define hooks declaratively in your ruby class. You can add callbacks to your hook, which will be run as soon as _you_ run the hook!
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It's almost like ActiveSupport::Callbacks but 76,6% less complex. Instead, it is not more than a few lines of code, one method compilation, no `method_missing` and no magic.
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Also, you may pass additional arguments to your callbacks when invoking a hook.
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## Example
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Let's take... a cat.
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```ruby
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require 'hooks'
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class Cat
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include Hooks
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define_hooks :before_dinner, :after_dinner
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```
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Now you can add callbacks to your hook declaratively in your class.
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```ruby
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before_dinner :wash_paws
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after_dinner do
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puts "Ice cream for #{self}!"
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end
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after_dinner :have_a_desert # => refers to Cat#have_a_desert
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def have_a_desert
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puts "Hell, yeah!"
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end
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```
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This will run the block and `#have_a_desert` from above.
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```ruby
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cat.run_hook :after_dinner
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# => Ice cream for #<Cat:0x8df9d84>!
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Hell, yeah!
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```
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Callback blocks and methods will be executed with instance context. Note how `self` in the block refers to the Cat instance.
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## Inheritance
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Hooks are inherited, here's a complete example to put it all together.
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```ruby
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class Garfield < Cat
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after_dinner :want_some_more
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def want_some_more
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puts "Is that all?"
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end
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end
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Garfield.new.run_hook :after_dinner
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# => Ice cream for #<Cat:0x8df9d84>!
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Hell, yeah!
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Is that all?
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```
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Note how the callbacks are invoked in the order they were inherited.
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## Options for Callbacks
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You're free to pass any number of arguments to #run_callback, those will be passed to the callbacks.
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```ruby
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cat.run_hook :before_dinner, cat, Time.now
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```
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The callbacks should be ready for receiving parameters.
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```ruby
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before_dinner :wash_pawns
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before_dinner do |who, when|
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...
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end
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def wash_pawns(who, when)
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```
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Not sure why a cat should have ice cream for dinner. Beside that, I was tempted naming this gem _hooker_.
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## Running And Halting Hooks
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Using `#run_hook` doesn't only run all callbacks for this hook but also returns an array of the results from each callback method or block.
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```ruby
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class Garfield
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include Hooks
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define_hook :after_dark
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after_dark { "Chase mice" }
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after_dark { "Enjoy supper" }
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end
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Garfield.new.run_hook :after_dark
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# => ["Chase mice", "Enjoy supper"]
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```
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This is handy if you need to collect data from your callbacks without having to access a global (brrr) variable.
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With the `:halts_on_falsey` option you can halt the callback chain when a callback returns `nil` or `false`.
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```ruby
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class Garfield
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include Hooks
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define_hook :after_dark, halts_on_falsey: true
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after_dark { "Chase mice" }
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after_dark { nil }
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after_dark { "Enjoy supper" }
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end
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result = Garfield.new.run_hook :after_dark
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# => ["Chase mice"]
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```
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This will only run the first two callbacks. Note that the result doesn't contain the `nil` value. You even can check if the chain was halted.
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```ruby
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result.halted? #=> true
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```
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## Instance Hooks
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You can also define hooks and/or add callbacks per instance. This is helpful if your class should define a basic set of hooks and callbacks that are then extended by instances.
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```ruby
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class Cat
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include Hooks
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include Hooks::InstanceHooks
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define_hook :after_dark
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after_dark { "Chase mice" }
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end
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```
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Note that you have to include `Hooks::InstanceHooks` to get this additional functionality.
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See how callbacks can be added to a separate object, now.
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```ruby
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garfield = Cat.new
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garfield.after_dark :sleep
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garfield.run_hook(:after_dark) # => invoke "Chase mice" hook and #sleep
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```
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This will copy all callbacks from the `after_dark` hook to the instance and add a second hook. This all happens on the `garfield` instance, only, and leaves the class untouched.
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Naturally, adding new hooks works like-wise.
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```ruby
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garfield.define_hook :before_six
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garfield.before_six { .. }
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```
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This feature was added in 0.3.2.
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## Installation
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In your Gemfile, do
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```ruby
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gem "hooks"
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```
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## Anybody using it?
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* Hooks is already used in [Apotomo](http://github.com/apotonick/apotomo), a hot widget framework for Rails.
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* The [datamappify](https://github.com/fredwu/datamappify) gem uses hooks and the author Fred Wu contributed to this gem!
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## Similar libraries
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* http://github.com/nakajima/aspectory
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* http://github.com/auser/backcall
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* http://github.com/mmcgrana/simple_callbacks
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## License
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Copyright (c) 2013, Nick Sutterer
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Released under the MIT License.
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@ -1,12 +0,0 @@
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require 'rake'
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require 'rake/testtask'
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desc 'Default: run unit tests.'
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task :default => :test
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desc 'Test the hooks plugin.'
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Rake::TestTask.new(:test) do |test|
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test.libs << 'test'
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test.test_files = FileList['test/*_test.rb']
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test.verbose = true
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end
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@ -1,25 +0,0 @@
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lib = File.expand_path('../lib/', __FILE__)
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$:.unshift lib unless $:.include?(lib)
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require 'hooks/version'
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Gem::Specification.new do |s|
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s.name = "hooks"
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s.version = Hooks::VERSION
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s.platform = Gem::Platform::RUBY
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s.authors = ["Nick Sutterer"]
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s.email = ["apotonick@gmail.com"]
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s.homepage = "http://nicksda.apotomo.de/2010/09/hooks-and-callbacks-for-ruby-but-simple/"
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s.summary = %q{Generic hooks with callbacks for Ruby.}
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s.description = %q{Declaratively define hooks, add callbacks and run them with the options you like.}
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s.license = "MIT"
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s.files = `git ls-files`.split("\n")
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s.test_files = `git ls-files -- {test,spec,features}/*`.split("\n")
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s.require_paths = ["lib"]
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s.license = 'MIT'
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s.add_development_dependency "minitest", ">= 5.0.0"
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s.add_development_dependency "rake"
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s.add_development_dependency "pry"
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end
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@ -1,131 +0,0 @@
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require File.join(File.dirname(__FILE__), "hooks/inheritable_attribute")
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require File.join(File.dirname(__FILE__), "hooks/hook")
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# Almost like ActiveSupport::Callbacks but 76,6% less complex.
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#
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# Example:
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#
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# class CatWidget < Apotomo::Widget
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# define_hooks :before_dinner, :after_dinner
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#
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# Now you can add callbacks to your hook declaratively in your class.
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#
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# before_dinner :wash_paws
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# after_dinner { puts "Ice cream!" }
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# after_dinner :have_a_desert # => refers to CatWidget#have_a_desert
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#
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# Running the callbacks happens on instances. It will run the block and #have_a_desert from above.
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#
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# cat.run_hook :after_dinner
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module Hooks
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def self.included(base)
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base.class_eval do
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extend InheritableAttribute
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extend ClassMethods
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inheritable_attr :_hooks
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self._hooks= HookSet.new
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end
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end
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module ClassMethods
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def define_hooks(*names)
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options = extract_options!(names)
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names.each do |name|
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setup_hook(name, options)
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end
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end
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alias_method :define_hook, :define_hooks
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# Like Hooks#run_hook but for the class. Note that +:callbacks+ must be class methods.
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#
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# Example:
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#
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# class Cat
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# after_eight :grab_a_beer
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#
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# def self.grab_a_beer(*) # and so on...
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#
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# where <tt>Cat.run_hook :after_eight</tt> will call the class method +grab_a_beer+.
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def run_hook(name, *args)
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run_hook_for(name, self, *args)
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end
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def run_hook_for(name, scope, *args)
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_hooks[name].run(scope, *args)
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end
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# Returns the callbacks for +name+. Handy if you want to run the callbacks yourself, say when
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# they should be executed in another context.
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#
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# Example:
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#
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# def initialize
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# self.class.callbacks_for_hook(:after_eight).each do |callback|
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# instance_exec(self, &callback)
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# end
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#
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# would run callbacks in the object _instance_ context, passing +self+ as block parameter.
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def callbacks_for_hook(name)
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_hooks[name]
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end
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private
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def setup_hook(name, options)
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_hooks[name] = Hook.new(options)
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define_hook_writer(name)
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end
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def define_hook_writer(name)
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instance_eval *hook_writer_args(name)
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end
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def hook_writer_args(name)
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# DISCUSS: isn't there a simpler way to define a dynamic method? should the internal logic be handled by HooksSet instead?
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str = <<-RUBY_EVAL
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def #{name}(method=nil, &block)
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_hooks[:#{name}] << (block || method)
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end
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RUBY_EVAL
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[str, __FILE__, __LINE__ + 1]
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end
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def extract_options!(args)
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args.last.is_a?(Hash) ? args.pop : {}
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end
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end
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# Runs the callbacks (method/block) for the specified hook +name+. Additional arguments will
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# be passed to the callback.
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#
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# Example:
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#
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# cat.run_hook :after_dinner, "i want ice cream!"
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#
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# will invoke the callbacks like
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#
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# desert("i want ice cream!")
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# block.call("i want ice cream!")
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def run_hook(name, *args)
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self.class.run_hook_for(name, self, *args)
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end
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class HookSet < Hash
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def [](name)
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super(name.to_sym)
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end
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def []=(name, values)
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super(name.to_sym, values)
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end
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def clone
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super.tap do |cloned|
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each { |name, callbacks| cloned[name] = callbacks.clone }
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end
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end
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end
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end
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require File.join(File.dirname(__FILE__), "hooks/instance_hooks")
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@ -1,81 +0,0 @@
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module Hooks
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class Hook < Array
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def initialize(options)
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super()
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@options = options
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end
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# The chain contains the return values of the executed callbacks.
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#
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# Example:
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#
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# class Person
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# define_hook :before_eating
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#
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# before_eating :wash_hands
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# before_eating :locate_food
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# before_eating :sit_down
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#
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# def wash_hands; :washed_hands; end
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# def locate_food; :located_food; false; end
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# def sit_down; :sat_down; end
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# end
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#
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# result = person.run_hook(:before_eating)
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# result.chain #=> [:washed_hands, false, :sat_down]
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#
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# If <tt>:halts_on_falsey</tt> is enabled:
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#
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# class Person
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# define_hook :before_eating, :halts_on_falsey => true
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# # ...
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# end
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#
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# result = person.run_hook(:before_eating)
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# result.chain #=> [:washed_hands]
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def run(scope, *args)
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inject(Results.new) do |results, callback|
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executed = execute_callback(scope, callback, *args)
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|
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return results.halted! unless continue_execution?(executed)
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results << executed
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end
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end
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|
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private
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def execute_callback(scope, callback, *args)
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if callback.kind_of?(Symbol)
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scope.send(callback, *args)
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else
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scope.instance_exec(*args, &callback)
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end
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end
|
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|
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def continue_execution?(result)
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@options[:halts_on_falsey] ? result : true
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end
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|
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class Results < Array
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# so much code for nothing...
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def initialize(*)
|
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super
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@halted = false
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end
|
||||
|
||||
def halted!
|
||||
@halted = true
|
||||
self
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end
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|
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# Returns true or false based on whether all callbacks
|
||||
# in the hook chain were successfully executed.
|
||||
def halted?
|
||||
@halted
|
||||
end
|
||||
|
||||
def not_halted?
|
||||
not @halted
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -1,33 +0,0 @@
|
|||
module Hooks
|
||||
module InheritableAttribute
|
||||
# Creates an inheritable attribute with accessors in the singleton class. Derived classes inherit the
|
||||
# attributes. This is especially helpful with arrays or hashes that are extended in the inheritance
|
||||
# chain. Note that you have to initialize the inheritable attribute.
|
||||
#
|
||||
# Example:
|
||||
#
|
||||
# class Cat
|
||||
# inheritable_attr :drinks
|
||||
# self.drinks = ["Becks"]
|
||||
#
|
||||
# class Garfield < Cat
|
||||
# self.drinks << "Fireman's 4"
|
||||
#
|
||||
# and then, later
|
||||
#
|
||||
# Cat.drinks #=> ["Becks"]
|
||||
# Garfield.drinks #=> ["Becks", "Fireman's 4"]
|
||||
def inheritable_attr(name)
|
||||
instance_eval %Q{
|
||||
def #{name}=(v)
|
||||
@#{name} = v
|
||||
end
|
||||
|
||||
def #{name}
|
||||
return @#{name} unless superclass.respond_to?(:#{name}) and value = superclass.#{name}
|
||||
@#{name} ||= value.clone # only do this once.
|
||||
end
|
||||
}
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -1,25 +0,0 @@
|
|||
module Hooks
|
||||
module InstanceHooks
|
||||
include ClassMethods
|
||||
|
||||
def run_hook(name, *args)
|
||||
run_hook_for(name, self, *args)
|
||||
end
|
||||
|
||||
private
|
||||
def _hooks
|
||||
@_hooks ||= self.class._hooks.clone # TODO: generify that with representable_attrs.
|
||||
end
|
||||
|
||||
module ClassMethods
|
||||
def define_hook_writer(name)
|
||||
super
|
||||
class_eval *hook_writer_args(name)
|
||||
end
|
||||
end
|
||||
|
||||
def self.included(base)
|
||||
base.extend(ClassMethods)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
module Hooks
|
||||
VERSION = "0.3.3"
|
||||
end
|
||||
|
|
@ -1,31 +0,0 @@
|
|||
require 'test_helper'
|
||||
|
||||
class HookTest < MiniTest::Spec
|
||||
subject { Hooks::Hook.new({}) }
|
||||
|
||||
it "exposes array behaviour for callbacks" do
|
||||
subject << :play_music
|
||||
subject << :drink_beer
|
||||
|
||||
subject.to_a.must_equal [:play_music, :drink_beer]
|
||||
end
|
||||
end
|
||||
|
||||
class ResultsTest < MiniTest::Spec
|
||||
subject { Hooks::Hook::Results.new }
|
||||
|
||||
describe "#halted?" do
|
||||
it "defaults to false" do
|
||||
subject.halted?.must_equal false
|
||||
end
|
||||
|
||||
it "responds to #halted!" do
|
||||
subject.halted!
|
||||
subject.halted?.must_equal true
|
||||
end
|
||||
|
||||
it "responds to #not_halted?" do
|
||||
subject.not_halted?.must_equal true
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -1,216 +0,0 @@
|
|||
require 'test_helper'
|
||||
|
||||
class HooksTest < MiniTest::Spec
|
||||
class TestClass
|
||||
include Hooks
|
||||
|
||||
def executed
|
||||
@executed ||= [];
|
||||
end
|
||||
end
|
||||
|
||||
|
||||
describe "::define_hook" do
|
||||
let(:klass) do
|
||||
Class.new(TestClass) do
|
||||
define_hook :after_eight
|
||||
end
|
||||
end
|
||||
|
||||
subject { klass.new }
|
||||
|
||||
it "respond to Class.callbacks_for_hook" do
|
||||
assert_equal [], klass.callbacks_for_hook(:after_eight)
|
||||
klass.after_eight :dine
|
||||
assert_equal [:dine], klass.callbacks_for_hook(:after_eight)
|
||||
end
|
||||
|
||||
it 'symbolizes strings when defining a hook' do
|
||||
subject.class.define_hooks :before_one, 'after_one'
|
||||
assert_equal [], klass.callbacks_for_hook(:before_one)
|
||||
assert_equal [], klass.callbacks_for_hook(:after_one)
|
||||
assert_equal [], klass.callbacks_for_hook('after_one')
|
||||
end
|
||||
|
||||
it "accept multiple hook names" do
|
||||
subject.class.define_hooks :before_ten, :after_ten
|
||||
assert_equal [], klass.callbacks_for_hook(:before_ten)
|
||||
assert_equal [], klass.callbacks_for_hook(:after_ten)
|
||||
end
|
||||
|
||||
describe "creates a public writer for the hook that" do
|
||||
it "accepts method names" do
|
||||
klass.after_eight :dine
|
||||
assert_equal [:dine], klass._hooks[:after_eight]
|
||||
end
|
||||
|
||||
it "accepts blocks" do
|
||||
klass.after_eight do true; end
|
||||
assert klass._hooks[:after_eight].first.kind_of? Proc
|
||||
end
|
||||
|
||||
it "be inherited" do
|
||||
klass.after_eight :dine
|
||||
subklass = Class.new(klass)
|
||||
|
||||
assert_equal [:dine], subklass._hooks[:after_eight]
|
||||
end
|
||||
# TODO: check if options are not shared!
|
||||
end
|
||||
|
||||
describe "Hooks#run_hook" do
|
||||
it "run without parameters" do
|
||||
subject.instance_eval do
|
||||
def a; executed << :a; nil; end
|
||||
def b; executed << :b; end
|
||||
|
||||
self.class.after_eight :b
|
||||
self.class.after_eight :a
|
||||
end
|
||||
|
||||
subject.run_hook(:after_eight)
|
||||
|
||||
assert_equal [:b, :a], subject.executed
|
||||
end
|
||||
|
||||
it "returns empty Results when no callbacks defined" do
|
||||
subject.run_hook(:after_eight).must_equal Hooks::Hook::Results.new
|
||||
end
|
||||
|
||||
it "accept arbitrary parameters" do
|
||||
subject.instance_eval do
|
||||
def a(me, arg); executed << arg+1; end
|
||||
end
|
||||
subject.class.after_eight :a
|
||||
subject.class.after_eight lambda { |me, arg| me.executed << arg-1 }
|
||||
|
||||
subject.run_hook(:after_eight, subject, 1)
|
||||
|
||||
assert_equal [2, 0], subject.executed
|
||||
end
|
||||
|
||||
it "execute block callbacks in instance context" do
|
||||
subject.class.after_eight { executed << :c }
|
||||
subject.run_hook(:after_eight)
|
||||
assert_equal [:c], subject.executed
|
||||
end
|
||||
|
||||
it "returns all callbacks in order" do
|
||||
subject.class.after_eight { :dinner_out }
|
||||
subject.class.after_eight { :party_hard }
|
||||
subject.class.after_eight { :taxi_home }
|
||||
|
||||
results = subject.run_hook(:after_eight)
|
||||
|
||||
assert_equal [:dinner_out, :party_hard, :taxi_home], results
|
||||
assert_equal false, results.halted?
|
||||
assert_equal true, results.not_halted?
|
||||
end
|
||||
|
||||
describe "halts_on_falsey: true" do
|
||||
let(:klass) do
|
||||
Class.new(TestClass) do
|
||||
define_hook :after_eight, :halts_on_falsey => true
|
||||
end
|
||||
end
|
||||
|
||||
[nil, false].each do |falsey|
|
||||
it "returns successful callbacks in order (with #{falsey.inspect})" do
|
||||
ordered = []
|
||||
|
||||
subject.class.after_eight { :dinner_out }
|
||||
subject.class.after_eight { :party_hard; falsey }
|
||||
subject.class.after_eight { :taxi_home }
|
||||
|
||||
results = subject.run_hook(:after_eight)
|
||||
|
||||
assert_equal [:dinner_out], results
|
||||
assert_equal true, results.halted?
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
describe "halts_on_falsey: false" do
|
||||
[nil, false].each do |falsey|
|
||||
it "returns all callbacks in order (with #{falsey.inspect})" do
|
||||
ordered = []
|
||||
|
||||
subject.class.after_eight { :dinner_out }
|
||||
subject.class.after_eight { :party_hard; falsey }
|
||||
subject.class.after_eight { :taxi_home }
|
||||
|
||||
results = subject.run_hook(:after_eight)
|
||||
|
||||
assert_equal [:dinner_out, falsey, :taxi_home], results
|
||||
assert_equal false, results.halted?
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
describe "in class context" do
|
||||
it "runs callback block" do
|
||||
executed = []
|
||||
klass.after_eight do
|
||||
executed << :klass
|
||||
end
|
||||
klass.run_hook(:after_eight)
|
||||
|
||||
executed.must_equal([:klass])
|
||||
end
|
||||
|
||||
it "runs instance methods" do
|
||||
executed = []
|
||||
klass.instance_eval do
|
||||
after_eight :have_dinner
|
||||
|
||||
def have_dinner(executed)
|
||||
executed << :have_dinner
|
||||
end
|
||||
end
|
||||
klass.run_hook(:after_eight, executed)
|
||||
|
||||
executed.must_equal([:have_dinner])
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
describe "Inheritance" do
|
||||
let (:superclass) {
|
||||
Class.new(TestClass) do
|
||||
define_hook :after_eight
|
||||
|
||||
after_eight :take_shower
|
||||
end
|
||||
}
|
||||
|
||||
let (:subclass) { Class.new(superclass) do after_eight :have_dinner end }
|
||||
|
||||
it "inherits callbacks from the hook" do
|
||||
subclass.callbacks_for_hook(:after_eight).must_equal [:take_shower, :have_dinner]
|
||||
end
|
||||
|
||||
it "doesn't mix up superclass hooks" do
|
||||
subclass.superclass.callbacks_for_hook(:after_eight).must_equal [:take_shower]
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
class HookSetTest < MiniTest::Spec
|
||||
subject { Hooks::HookSet.new }
|
||||
|
||||
let (:first_hook) { Hooks::Hook.new(:halts_on_falsey => true) }
|
||||
let (:second_hook) { Hooks::Hook.new(:halts_on_falsey => false) }
|
||||
|
||||
it "responds to #clone" do
|
||||
subject[:after_eight] = [first_hook]
|
||||
|
||||
clone = subject.clone
|
||||
|
||||
clone[:after_eight] << second_hook
|
||||
|
||||
subject.must_equal(:after_eight => [first_hook])
|
||||
clone.must_equal(:after_eight => [first_hook, second_hook])
|
||||
end
|
||||
# TODO: test if options get cloned.
|
||||
end
|
||||
|
|
@ -1,53 +0,0 @@
|
|||
require 'test_helper'
|
||||
|
||||
class HooksTest < MiniTest::Spec
|
||||
describe "Hooks.define_hook" do
|
||||
subject {
|
||||
Class.new(Object) do
|
||||
extend Hooks::InheritableAttribute
|
||||
inheritable_attr :drinks
|
||||
end
|
||||
}
|
||||
|
||||
it "provides a reader with empty inherited attributes, already" do
|
||||
assert_equal nil, subject.drinks
|
||||
end
|
||||
|
||||
it "provides a reader with empty inherited attributes in a derived class" do
|
||||
assert_equal nil, Class.new(subject).drinks
|
||||
#subject.drinks = true
|
||||
#Class.new(subject).drinks # TODO: crashes.
|
||||
end
|
||||
|
||||
it "provides an attribute copy in subclasses" do
|
||||
subject.drinks = []
|
||||
assert subject.drinks.object_id != Class.new(subject).drinks.object_id
|
||||
end
|
||||
|
||||
it "provides a writer" do
|
||||
subject.drinks = [:cabernet]
|
||||
assert_equal [:cabernet], subject.drinks
|
||||
end
|
||||
|
||||
it "inherits attributes" do
|
||||
subject.drinks = [:cabernet]
|
||||
|
||||
subklass_a = Class.new(subject)
|
||||
subklass_a.drinks << :becks
|
||||
|
||||
subklass_b = Class.new(subject)
|
||||
|
||||
assert_equal [:cabernet], subject.drinks
|
||||
assert_equal [:cabernet, :becks], subklass_a.drinks
|
||||
assert_equal [:cabernet], subklass_b.drinks
|
||||
end
|
||||
|
||||
it "does not inherit attributes if we set explicitely" do
|
||||
subject.drinks = [:cabernet]
|
||||
subklass = Class.new(subject)
|
||||
|
||||
subklass.drinks = [:merlot] # we only want merlot explicitely.
|
||||
assert_equal [:merlot], subklass.drinks # no :cabernet, here
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -1,55 +0,0 @@
|
|||
require "test_helper"
|
||||
|
||||
class InstanceHooksTest < HooksTest
|
||||
describe "#define_hook" do
|
||||
let(:klass) { Class.new(TestClass) do
|
||||
include Hooks::InstanceHooks
|
||||
end }
|
||||
|
||||
subject { klass.new.tap do |obj|
|
||||
obj.instance_eval do
|
||||
def dine; executed << :dine; end
|
||||
end
|
||||
end }
|
||||
|
||||
it "adds hook to instance" do
|
||||
subject.define_hook :after_eight
|
||||
|
||||
assert_equal [], subject.callbacks_for_hook(:after_eight)
|
||||
end
|
||||
|
||||
it "copies existing class hook" do
|
||||
klass.define_hook :after_eight
|
||||
klass.after_eight :dine
|
||||
|
||||
assert_equal [:dine], subject.callbacks_for_hook(:after_eight)
|
||||
end
|
||||
|
||||
describe "#after_eight (adding callbacks)" do
|
||||
before do
|
||||
subject.define_hook :after_eight
|
||||
subject.after_eight :dine
|
||||
end
|
||||
|
||||
it "adds #after_eight hook" do
|
||||
assert_equal [:dine], subject.callbacks_for_hook(:after_eight)
|
||||
end
|
||||
|
||||
it "responds to #run_hook" do
|
||||
subject.run_hook :after_eight
|
||||
subject.executed.must_equal [:dine]
|
||||
end
|
||||
end
|
||||
|
||||
describe "#after_eight from class (no define_hook in instance)" do
|
||||
it "responds to #after_eight" do
|
||||
klass.define_hook :after_eight
|
||||
|
||||
subject.after_eight :dine
|
||||
|
||||
subject.run_hook :after_eight
|
||||
subject.executed.must_equal [:dine]
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
require 'minitest/autorun'
|
||||
require 'pry'
|
||||
require 'hooks'
|
||||
|
|
@ -21,6 +21,7 @@ Gem::Specification.new do |s|
|
|||
s.add_dependency("bundler", ["~> 1.1"])
|
||||
s.add_dependency("rack", [">= 1.4.5"])
|
||||
s.add_dependency("tilt", ["~> 1.4.1"])
|
||||
s.add_dependency("hooks", ["~> 0.3"])
|
||||
|
||||
# Helpers
|
||||
s.add_dependency("activesupport", ["~> 4.0.1"])
|
||||
|
|
|
|||
Loading…
Reference in a new issue