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

README.md

@@ -152,6 +152,20 @@ 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:
+    -
+      :id: 1
+      :form: # form builder required parameter
+        !ruby/object:Something # Mountain View will create a form builder like it was created by `form_for Something.new` helper
+          attributes: # You can set any attributes on Something instance
+            name: "test"
+```
+
 3) Vist `http://localhost:3000/mountain_view/styleguide`
 
 #### Example Style Guide

lib/mountain_view/component.rb

@@ -18,9 +18,9 @@ def styleguide_stubs
 
     def component_stubs
       if styleguide_stubs.is_a?(Hash)
-        styleguide_stubs[:stubs] || {}
+        convert_objects_to_form_objects(styleguide_stubs[:stubs] || {})
       elsif styleguide_stubs.is_a?(Array)
-        styleguide_stubs
+        convert_objects_to_form_objects(styleguide_stubs)
       end
     end
 
@@ -55,5 +55,21 @@ def stubs_correct_format?
     def stubs_are_a_hash_with_info?
       styleguide_stubs.is_a?(Hash) && styleguide_stubs.key?(:stubs)
     end
+
+    def convert_objects_to_form_objects(stubs)
+      case stubs
+      when Hash
+        Hash[stubs.map { |k, stub| [k, convert_objects_to_form_objects(stub)] }]
+      when Enumerable
+        stubs.map { |stub| convert_objects_to_form_objects(stub) }
+      when ActiveRecord::Base
+        ActionView::Base.default_form_builder.new(stubs.model_name.param_key,
+                                                  stubs,
+                                                  ActionView::Base.new,
+                                                  {})
+      else
+        stubs
+      end
+    end
   end
 end

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

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

test/dummy/app/components/form_custom_button/form_custom_button.css

@@ -0,0 +1,8 @@
+:meta: 'There is a class with form builder object'
+:stubs:
+  -
+    :id: 1
+    :form:
+      !ruby/object:Something
+        attributes:
+          name: "test"

test/dummy/app/components/form_custom_button/form_custom_button.js

@@ -0,0 +1,3 @@
+class FormCustomButtonComponent < MountainView::Presenter
+  property :form
+end

test/dummy/app/components/form_custom_button/form_custom_button.yml

@@ -7,3 +7,7 @@
   -
     :id: 2
     :title: "You won't believe what happened to this man at Aspen"
+  -
+    :id: 3
+    :title: "Testing form objects"
+    :form: {form_for: Object}