Add support for mocking a form builder objects

Author: drakmail

.gitignore

@@ -9,3 +9,5 @@ test/dummy/.sass-cache
 Gemfile.lock
 test/tmp
 *.gem
+
+*.swp

.rubocop.yml

@@ -0,0 +1,4 @@
+AllCops:
+  RunRailsCops: true
+  Exclude:
+    - spec/dummy/db/schema.rb

Gemfile

@@ -16,6 +16,7 @@ rails = case rails_version
         end
 
 gem "rails", rails
+gem "test-unit", "~> 3.0"
 
 # Declare any dependencies that are still in development here instead of in
 # your gemspec. These might include edge Rails or gems from your path or

README.md

@@ -152,6 +152,56 @@ E.g: `app/components/card/card.yml`
   :link: "http://google.com"
 
 ```
+
+If your component depends on a form builder object you can use the following statement:
+
+```yml
+:meta: 'There is a class with form builder object'
+:stubs:
+  -
+    :form:
+      !ruby/object:MountainView::Helpers::FormBuilder
+        model: !ruby/object:Something
+          attributes:
+            name: 'something name'
+```
+
+Also you can stub any ruby class with the following method:
+
+
+```yml
+:meta: 'There is a class with an AR object'
+:stubs:
+  -
+    :some_model: !ruby/object:Something
+      attributes:
+        name: 'blabla'
+```
+
+For any complex logic you can define a custom Compoenent Stub with `init_with(coder)` method which will receive a `#map` with attributes loaded from yaml file:
+
+```yml
+:meta: 'There is a class with a complex logic'
+:stubs:
+  -
+    :some_model: !ruby/object:ComponentStub
+      params:
+        - 'blabla'
+        - 'nothing'
+      name: 'Some Name'
+```
+
+```ruby
+class ComponentStub < SomeModel # SomeModel could be AR class
+  def init_with(coder)
+    param1 = coder.map["params"].first
+    somename = coder.map["name"]
+    # or `@properties = coder.map`
+    initialize(param1, somename) # call initializer of SomeModel
+  end
+end
+```
+
 3) Vist `http://localhost:3000/mountain_view/styleguide`
 
 #### Example Style Guide

lib/mountain_view.rb

@@ -2,6 +2,7 @@
 require "mountain_view/configuration"
 require "mountain_view/presenter"
 require "mountain_view/component"
+require "mountain_view/helpers/form_builder"
 
 module MountainView
   def self.configuration

lib/mountain_view/component.rb

@@ -55,5 +55,17 @@ def stubs_correct_format?
     def stubs_are_a_hash_with_info?
       styleguide_stubs.is_a?(Hash) && styleguide_stubs.key?(:stubs)
     end
+
+    def create_form_builder(stub)
+      ActionView::Base.default_form_builder.new(stub.class.model_name.param_key,
+                                                stub,
+                                                ActionView::Base.new,
+                                                {})
+    rescue
+      ActionView::Base.default_form_builder.new(stub.class.model_name.param_key,
+                                                stub,
+                                                ActionView::Base.new,
+                                                {}, nil)
+    end
   end
 end

lib/mountain_view/helpers/form_builder.rb

@@ -0,0 +1,18 @@
+module MountainView
+  module Helpers
+    class FormBuilder < ActionView::Base.default_form_builder
+      def init_with(coder)
+        model = coder.map["model"]
+        create_form_builder(model)
+      end
+
+      private
+
+      def create_form_builder(model)
+        initialize(model.class.model_name.param_key, model, ActionView::Base.new, {})
+      rescue
+        initialize(model.class.model_name.param_key, model, ActionView::Base.new, {}, nil)
+      end
+    end
+  end
+end

test/dummy/app/components/form_custom_button/_form_custom_button.html.erb

@@ -0,0 +1 @@
+<%= form.button "button text" %>