Agile Web Development with Rails, Edition 4

8.4 Iteration C4: Functional Testing

Demonstrate use of assert_select to test views.

Verify that the tests still pass.

rake test

Run options:

# Running tests:

.....

Finished tests in 0.271763s, 18.3984 tests/s, 84.6327 assertions/s.

5 tests, 23 assertions, 0 failures, 0 errors, 0 skips

ruby -v: ruby 2.0.0p0 (2013-02-24 revision 39474) [x86_64-linux]

Run options:

# Running tests:

........

Finished tests in 0.468520s, 17.0750 tests/s, 23.4782 assertions/s.

8 tests, 11 assertions, 0 failures, 0 errors, 0 skips

ruby -v: ruby 2.0.0p0 (2013-02-24 revision 39474) [x86_64-linux]

Add tests for layout, product display, and formatting, using counts, string comparisons, and regular expressions.

edit test/functional/store_controller_test.rb

require 'test_helper'

class StoreControllerTest < ActionController::TestCase

  test "should get index" do

    get :index

    assert_response :success

    assert_select '#columns #side a', minimum: 4

    assert_select '#main .entry', 3

    assert_select 'h3', 'Programming Ruby 1.9'

    assert_select '.price', /\$[,\d]+\.\d\d/

end

end

Review fixure data

edit test/fixtures/products.yml

# Read about fixtures at

# http://api.rubyonrails.org/classes/ActiveRecord/Fixtures.html

one:

  title: MyString

  description: MyText

  image_url: MyString

  price: 9.99

two:

  title: MyString

  description: MyText

  image_url: MyString

  price: 9.99

ruby:

  title:       Programming Ruby 1.9

  description:

    Ruby is the fastest growing and most exciting dynamic

    language out there.  If you need to get working programs

    delivered fast, you should add Ruby to your toolbox.

  price:       49.50

  image_url:   ruby.png

Show that the tests pass.

rake test:functionals

Run options:

# Running tests:

........

Finished tests in 0.475534s, 16.8232 tests/s, 31.5435 assertions/s.

8 tests, 15 assertions, 0 failures, 0 errors, 0 skips

ruby -v: ruby 2.0.0p0 (2013-02-24 revision 39474) [x86_64-linux]