Module: ViewComponent::TestHelpers
- Included in:
- TestCase
- Defined in:
- lib/view_component/test_helpers.rb
Instance Attribute Summary collapse
- #rendered_content ⇒ Object readonly
Instance Method Summary collapse
- #build_controller(klass) ⇒ Object
- #controller ⇒ Object
-
#render_in_view_context(&block) ⇒ Object
Execute the given block in the view context.
-
#render_inline(component, **args, &block) ⇒ Nokogiri::HTML
Render a component inline.
-
#rendered_component ⇒ String
Returns the result of a render_inline call.
- #request ⇒ Object
-
#with_controller_class(klass) ⇒ Object
Set the controller to be used while executing the given block, allowing access to controller-specific methods:.
-
#with_request_url(path) ⇒ Object
Set the URL of the current request (such as when using request-dependent path helpers):.
-
#with_variant(variant) ⇒ Object
Set the Action Pack request variant for the given block:.
Instance Attribute Details
#rendered_content ⇒ Object (readonly)
55 56 57 |
# File 'lib/view_component/test_helpers.rb', line 55 def rendered_content @rendered_content end |
Instance Method Details
#build_controller(klass) ⇒ Object
189 190 191 |
# File 'lib/view_component/test_helpers.rb', line 189 def build_controller(klass) klass.new.tap { |c| c.request = request }.extend(Rails.application.routes.url_helpers) end |
#controller ⇒ Object
108 109 110 |
# File 'lib/view_component/test_helpers.rb', line 108 def controller @controller ||= build_controller(Base.test_controller.constantize) end |
#render_in_view_context(&block) ⇒ Object
Execute the given block in the view context. Internally sets ‘page` to be a `Capybara::Node::Simple`, allowing for Capybara assertions to be used:
“‘ruby render_in_view_context do
render(MyComponent.new)
end
assert_text(“Hello, World!”) “‘
101 102 103 104 105 |
# File 'lib/view_component/test_helpers.rb', line 101 def render_in_view_context(&block) @page = nil @rendered_content = controller.view_context.instance_exec(&block) Nokogiri::HTML.fragment(@rendered_content) end |
#render_inline(component, **args, &block) ⇒ Nokogiri::HTML
Render a component inline. Internally sets ‘page` to be a `Capybara::Node::Simple`, allowing for Capybara assertions to be used:
“‘ruby render_inline(MyComponent.new) assert_text(“Hello, World!”) “`
79 80 81 82 83 84 85 86 87 88 89 |
# File 'lib/view_component/test_helpers.rb', line 79 def render_inline(component, **args, &block) @page = nil @rendered_content = if Rails.version.to_f >= 6.1 controller.view_context.render(component, args, &block) else controller.view_context.render_component(component, &block) end Nokogiri::HTML.fragment(@rendered_content) end |
#rendered_component ⇒ String
Returns the result of a render_inline call.
60 61 62 63 64 65 66 67 |
# File 'lib/view_component/test_helpers.rb', line 60 def rendered_component ViewComponent::Deprecation.warn( "`rendered_component` is deprecated and will be removed in v3.0.0. " \ "Use `page` instead." ) rendered_content end |
#request ⇒ Object
113 114 115 116 117 118 119 120 |
# File 'lib/view_component/test_helpers.rb', line 113 def request @request ||= begin request = ActionDispatch::TestRequest.create request.session = ActionController::TestSession.new request end end |
#with_controller_class(klass) ⇒ Object
Set the controller to be used while executing the given block, allowing access to controller-specific methods:
“‘ruby with_controller_class(UsersController) do
render_inline(MyComponent.new)
end “‘
150 151 152 153 154 155 156 157 |
# File 'lib/view_component/test_helpers.rb', line 150 def with_controller_class(klass) old_controller = defined?(@controller) && @controller @controller = build_controller(klass) yield ensure @controller = old_controller end |
#with_request_url(path) ⇒ Object
Set the URL of the current request (such as when using request-dependent path helpers):
“‘ruby with_request_url(“/users/42”) do
render_inline(MyComponent.new)
end “‘
168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 |
# File 'lib/view_component/test_helpers.rb', line 168 def with_request_url(path) old_request_path_info = request.path_info old_request_path_parameters = request.path_parameters old_request_query_parameters = request.query_parameters old_request_query_string = request.query_string old_controller = defined?(@controller) && @controller request.path_info = path request.path_parameters = Rails.application.routes.recognize_path(path) request.set_header("action_dispatch.request.query_parameters", Rack::Utils.parse_nested_query(path.split("?")[1])) request.set_header(Rack::QUERY_STRING, path.split("?")[1]) yield ensure request.path_info = old_request_path_info request.path_parameters = old_request_path_parameters request.set_header("action_dispatch.request.query_parameters", old_request_query_parameters) request.set_header(Rack::QUERY_STRING, old_request_query_string) @controller = old_controller end |
#with_variant(variant) ⇒ Object
Set the Action Pack request variant for the given block:
“‘ruby with_variant(:phone) do
render_inline(MyComponent.new)
end “‘
131 132 133 134 135 136 137 138 |
# File 'lib/view_component/test_helpers.rb', line 131 def with_variant(variant) old_variants = controller.view_context.lookup_context.variants controller.view_context.lookup_context.variants = variant yield ensure controller.view_context.lookup_context.variants = old_variants end |