aboutsummaryrefslogtreecommitdiffstats
path: root/railties/test/isolation/abstract_unit.rb
blob: 557292e7d3968766a2ff1a9a26f7d09761c5b0e1 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
# Note:
# It is important to keep this file as light as possible
# the goal for tests that require this is to test booting up
# rails from an empty state, so anything added here could
# hide potential failures
#
# It is also good to know what is the bare minimum to get
# Rails booted up.

require 'fileutils'

# TODO: Remove rubygems when possible
require 'rubygems'
require 'test/unit'

# TODO: Remove setting this magic constant
RAILS_FRAMEWORK_ROOT = File.expand_path("#{File.dirname(__FILE__)}/../../..")

# These files do not require any others and are needed
# to run the tests
require "#{RAILS_FRAMEWORK_ROOT}/activesupport/lib/active_support/testing/isolation"
require "#{RAILS_FRAMEWORK_ROOT}/activesupport/lib/active_support/testing/declarative"

module TestHelpers
  module Paths
    module_function

    TMP_PATH = File.expand_path(File.join(File.dirname(__FILE__), *%w[.. .. tmp]))

    def tmp_path(*args)
      File.join(TMP_PATH, *args)
    end

    def app_path(*args)
      tmp_path(*%w[app] + args)
    end

    def framework_path
      RAILS_FRAMEWORK_ROOT
    end

    def rails_root
      app_path
    end
  end

  module Rack
    def extract_body(response)
      "".tap do |body|
        response[2].each {|chunk| body << chunk }
      end
    end

    def get(path)
      @app.call(::Rack::MockRequest.env_for(path))
    end

    def assert_welcome(resp)
      assert_equal 200, resp[0]
      assert resp[1]["Content-Type"] = "text/html"
      assert extract_body(resp).match(/Welcome aboard/)
    end

    def assert_success(resp)
      assert_equal 202, resp[0]
    end

    def assert_missing(resp)
      assert_equal 404, resp[0]
    end

    def assert_header(key, value, resp)
      assert_equal value, resp[1][key.to_s]
    end

    def assert_body(expected, resp)
      assert_equal expected, extract_body(resp)
    end
  end

  module Generation
    def build_app(options = {})
      FileUtils.rm_rf(app_path)
      FileUtils.cp_r(tmp_path('app_template'), app_path)

      # Delete the initializers unless requested
      unless options[:initializers]
        Dir["#{app_path}/config/initializers/*.rb"].each do |initializer|
          File.delete(initializer)
        end
      end

      add_to_config 'config.action_controller.session = { :key => "_myapp_session", :secret => "bac838a849c1d5c4de2e6a50af826079" }'
    end

    def add_to_config(str)
      environment = File.read("#{app_path}/config/application.rb")
      if environment =~ /(\n\s*end\s*)\Z/
        File.open("#{app_path}/config/application.rb", 'w') do |f|
          f.puts $` + "\n#{str}\n" + $1
        end
      end
    end

    def app_file(path, contents)
      FileUtils.mkdir_p File.dirname("#{app_path}/#{path}")
      File.open("#{app_path}/#{path}", 'w') do |f|
        f.puts contents
      end
    end

    def controller(name, contents)
      app_file("app/controllers/#{name}_controller.rb", contents)
    end

    def boot_rails
      bundled = "#{File.dirname(__FILE__)}/../../vendor/gems/environment"
      if File.exist?("#{bundled}.rb")
        require bundled
        %w(railties railties/lib).each do |path|
          $LOAD_PATH.unshift File.expand_path("../../../../#{path}", __FILE__)
        end
      else
        %w(
          actionmailer/lib
          actionpack/lib
          activemodel/lib
          activerecord/lib
          activeresource/lib
          activesupport/lib
          railties/lib
          railties
        ).reverse_each do |path|
          path = File.expand_path("../../../../#{path}", __FILE__)
          $:.unshift(path)
        end
      end
    end
  end
end

class Test::Unit::TestCase
  include TestHelpers::Paths
  include TestHelpers::Rack
  include TestHelpers::Generation
  extend  ActiveSupport::Testing::Declarative
end

# Create a scope and build a fixture rails app
Module.new do
  extend TestHelpers::Paths
  # Build a rails app
  if File.exist?(tmp_path)
    FileUtils.rm_rf(tmp_path)
  end

  FileUtils.mkdir(tmp_path)
  `#{Gem.ruby} #{RAILS_FRAMEWORK_ROOT}/railties/bin/rails #{tmp_path('app_template')}`
end