new users controller

app/assets/javascripts/user.coffee

@@ -0,0 +1,3 @@
+# Place all the behaviors and hooks related to the matching controller here.
+# All this logic will automatically be available in application.js.
+# You can use CoffeeScript in this file: http://coffeescript.org/

app/assets/stylesheets/user.css.scss

@@ -0,0 +1,3 @@
+// Place all the styles related to the user controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/controllers/user_controller.rb

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+class UserController < ApplicationController
+  def show
+    @user = User.find_by_screen_name(params[:username])
+  end
+
+  def edit
+  end
+end

app/helpers/user_helper.rb

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+module UserHelper
+end

app/views/user/edit.html.haml

@@ -0,0 +1,2 @@
+<h1>User#edit</h1>
+<p>Find me in app/views/user/edit.html.erb</p>

app/views/user/show.html.haml

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+.container.user-page
+  .col-md-3.col-xs-12.col-sm-3
+    .panel.panel-default
+      .panel-body
+        .row
+          .col-md-12.col-xs-12.col-sm-9
+            %img.img-rounded.img-profile
+        %h1
+          = @user.screen_name
+        %ul.list-group
+          %li.list-group-item
+            Followers
+            %span.badge#follower-count= @user.follower_count
+          %li.list-group-item
+            Followings
+            %span.badge#friend-count= @user.friend_count
+  .col-md-9.col-xs-12.col-sm-9
+    = render 'shared/questionbox'

test/controllers/user_controller_test.rb

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+require 'test_helper'
+
+class UserControllerTest < ActionController::TestCase
+  test "should get show" do
+    get :show
+    assert_response :success
+  end
+
+  test "should get edit" do
+    get :edit
+    assert_response :success
+  end
+
+end

test/helpers/user_helper_test.rb

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+require 'test_helper'
+
+class UserHelperTest < ActionView::TestCase
+end