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Rails spec · Changes

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Created Rails spec (markdown) authored Mar 30, 2018 by Luc Donnet's avatar Luc Donnet
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# Ecriture de fichier spec
## Spec de `Model`
## Spec de `View`
### Helpers
- _matcher_ `have_link_for_each_item` qui permet d'itérer sur tous les éléments d'une collection, et de vérifier - pour chacun - qu'on a un lien vers l'URL désirée (dans [`spec/support/integration_spec_helper.rb`](http://github.com/af83/stif-boiv/blob/f83df1a0b39b2af7d3088db9c98365c4088bc021/spec/support/integration_spec_helper.rb#L22)).
- _matcher_ `have_the_right_number_of_links` qui permet d'itérer sur tous les éléments d'une collection, et de vérifier - pour chacun - qu'on a le bon nombre de liens (dans [`spec/support/integration_spec_helper.rb`](http://github.com/af83/stif-boiv/blob/f83df1a0b39b2af7d3088db9c98365c4088bc021/spec/support/integration_spec_helper.rb#L22)).
- `with_permission permission_name do ...` qui permet de tester le rendu avec un utilisateur disposant de la permission désirée (dans [`spec/support/integration_spec_helper.rb`](http://github.com/af83/stif-boiv/blob/f83df1a0b39b2af7d3088db9c98365c4088bc021/spec/support/integration_spec_helper.rb#L22)).
- `build_paginated_collection(:factory_name, decorator_class, factory_options, context: decorator_context)` permet de construire une collection d'objets et de les décorer, de façon similaire à ce que ferait un controlleur (dans [`spec/support/integration_spec_helper.rb`](http://github.com/af83/stif-boiv/blob/f83df1a0b39b2af7d3088db9c98365c4088bc021/spec/support/integration_spec_helper.rb#L22).
### Tips
- pour _nester_ la vue, par exemple émuler une URL `/parents/:parent_id/objects`: `controller.request.path_parameters[:parent_id] = parent.id`
### Exemple
Pour une vue d'__index__, dans laquelle on veut vérifier:
- le nombre de lignes du tableau
- la présence de lien pour chaque ligne (en fonction des permissions)
```ruby
require 'spec_helper'
describe "/objects/index", :type => :view do
let(:parent) { assign :parent, create(:parent) }
let(:context) {
{
foo: bar,
bar: baz
}
}
let(:objects) do
assign :objects, build_paginated_collection(:object, ObjectDecorator, parent: parent, context: context)
end
before :each do
allow(view).to receive(:collection).and_return(objects)
allow(view).to receive(:current_referential).and_return(parent)
controller.request.path_parameters[:parent_id] = parent.id
render
end
common_items = ->{
it { should have_link_for_each_item(objects, "show", -> (object){ view.parent_object_path(parent, object) }) }
it { should have_link_for_each_item(objects, "foo", -> (object){ view.parent_foo_path(parent, object.foo) }) }
it { should have_link_for_each_item(objects, "bar", -> (object){ view.parent_bar_path(parent, object.bar) }) }
}
common_items.call()
it { should have_the_right_number_of_links(objects, 3) }
with_permission "objects.activate" do
common_items.call()
it { should have_link_for_each_item(objects, "activate", -> (object){ view.activate_parent_object_path(parent, object) }) }
it { should have_the_right_number_of_links(objects, 4) }
end
end
```
## Spec de `Controller`
### Helpers
- `login_user` pour créer un utilisateur et le passer dans la session
- `with_permission permission do ...` pour ajouter la permission à l'utilisateur connecté dans le contexte
### Exemple
```ruby
RSpec.describe ObjectController, :type => :controller do
login_user
let(:parent) { create :parent }
let(:object) { create :object, parent: parent }
describe 'PUT deactivate' do
let(:request){ put :deactivate, id: object.id, parent_id: parent.id }
it 'should redirect to 403' do
expect(request).to redirect_to "/403"
end
with_permission "foo.bar" do
it 'returns HTTP success' do
expect(request).to redirect_to [parent, object]
expect(object.reload).to be_deactivated
end
end
end
describe 'PUT activate' do
let(:request){ put :activate, id: object.id, parent_id: parent.id }
before(:each){
object.deactivate!
}
it 'should redirect to 403' do
expect(request).to redirect_to "/403"
end
with_permission "objects.change_status" do
it 'returns HTTP success' do
expect(request).to redirect_to [parent, object]
expect(object.reload).to be_activated
end
end
end
end
```
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