aboutsummaryrefslogtreecommitdiffstats
path: root/actionpack/test/abstract/layouts_test.rb
blob: 453d31826eb3ceac02765fd932fbab299d68303f (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
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
require 'abstract_unit'
require 'active_support/core_ext/class/removal'

module AbstractControllerTests
  module Layouts

    # Base controller for these tests
    class Base < AbstractController::Base
      include AbstractController::RenderingController
      include AbstractController::Layouts

      self.view_paths = [ActionView::FixtureResolver.new(
        "layouts/hello.erb"                     => "With String <%= yield %>",
        "layouts/hello_override.erb"            => "With Override <%= yield %>",
        "layouts/abstract_controller_tests/layouts/with_string_implied_child.erb" =>
                                                   "With Implied <%= yield %>",
        "layouts/omg.erb"                       => "OMGHI2U <%= yield %>",
        "layouts/with_false_layout.erb"         => "False Layout <%= yield %>"
      )]

      def self.controller_path
        @controller_path ||= self.name.sub(/Controller$/, '').underscore
      end
      
      def controller_path() self.class.controller_path end
      
      def render_to_body(options)
        options[:_layout] = _default_layout({})
        super
      end
    end
    
    class Blank < Base
      self.view_paths = []
      
      def index
        render :_template => ActionView::TextTemplate.new("Hello blank!")
      end
    end
    
    class WithString < Base
      layout "hello"
      
      def index
        render :_template => ActionView::TextTemplate.new("Hello string!")
      end
    end
    
    class WithStringChild < WithString
    end
    
    class WithStringOverriddenChild < WithString
      layout "hello_override"
    end
    
    class WithNilChild < WithString
      layout nil
    end    
    
    class WithStringImpliedChild < WithString
    end
    
    class WithChildOfImplied < WithStringImpliedChild
    end
    
    class WithSymbol < Base
      layout :hello
      
      def index
        render :_template => ActionView::TextTemplate.new("Hello symbol!")
      end
    private  
      def hello
        "omg"
      end
    end
    
    class WithSymbolReturningString < Base
      layout :no_hello
      
      def index
        render :_template => ActionView::TextTemplate.new("Hello missing symbol!")
      end
    private  
      def no_hello
        nil
      end
    end
    
    class WithSymbolReturningNil < Base
      layout :nilz
      
      def index
        render :_template => ActionView::TextTemplate.new("Hello nilz!")
      end
      
      def nilz() end
    end
    
    class WithSymbolReturningObj < Base
      layout :objekt
      
      def index
        render :_template => ActionView::TextTemplate.new("Hello nilz!")
      end
      
      def objekt
        Object.new
      end
    end    
    
    class WithSymbolAndNoMethod < Base
      layout :omg_no_method
      
      def index
        render :_template => ActionView::TextTemplate.new("Hello boom!")
      end
    end
    
    class WithMissingLayout < Base
      layout "missing"
      
      def index
        render :_template => ActionView::TextTemplate.new("Hello missing!")
      end
    end
    
    class WithFalseLayout < Base
      layout false
      
      def index
        render :_template => ActionView::TextTemplate.new("Hello false!")
      end
    end
    
    class WithNilLayout < Base
      layout nil
      
      def index
        render :_template => ActionView::TextTemplate.new("Hello nil!")
      end
    end
    
    class TestBase < ActiveSupport::TestCase
      test "when no layout is specified, and no default is available, render without a layout" do
        controller = Blank.new
        controller.process(:index)
        assert_equal "Hello blank!", controller.response_body
      end
      
      test "when layout is specified as a string, render with that layout" do
        controller = WithString.new
        controller.process(:index)
        assert_equal "With String Hello string!", controller.response_body
      end
      
      test "when layout is specified as a string, but the layout is missing, raise an exception" do
        assert_raises(ActionView::MissingTemplate) { WithMissingLayout.new.process(:index) }
      end
      
      test "when layout is specified as false, do not use a layout" do
        controller = WithFalseLayout.new
        controller.process(:index)
        assert_equal "Hello false!", controller.response_body
      end
      
      test "when layout is specified as nil, do not use a layout" do
        controller = WithNilLayout.new
        controller.process(:index)
        assert_equal "Hello nil!", controller.response_body
      end
      
      test "when layout is specified as a symbol, call the requested method and use the layout returned" do
        controller = WithSymbol.new
        controller.process(:index)
        assert_equal "OMGHI2U Hello symbol!", controller.response_body
      end
      
      test "when layout is specified as a symbol and the method returns nil, don't use a layout" do
        controller = WithSymbolReturningNil.new
        controller.process(:index)
        assert_equal "Hello nilz!", controller.response_body
      end
      
      test "when the layout is specified as a symbol and the method doesn't exist, raise an exception" do
        assert_raises(NoMethodError, /:nilz/) { WithSymbolAndNoMethod.new.process(:index) }
      end
      
      test "when the layout is specified as a symbol and the method returns something besides a string/false/nil, raise an exception" do
        assert_raises(ArgumentError) { WithSymbolReturningObj.new.process(:index) }
      end
      
      test "when a child controller does not have a layout, use the parent controller layout" do
        controller = WithStringChild.new
        controller.process(:index)
        assert_equal "With String Hello string!", controller.response_body
      end
      
      test "when a child controller has specified a layout, use that layout and not the parent controller layout" do
        controller = WithStringOverriddenChild.new
        controller.process(:index)
        assert_equal "With Override Hello string!", controller.response_body
      end
      
      test "when a child controller has an implied layout, use that layout and not the parent controller layout" do
        controller = WithStringImpliedChild.new
        controller.process(:index)
        assert_equal "With Implied Hello string!", controller.response_body
      end
      
      test "when a child controller specifies layout nil, do not use the parent layout" do
        controller = WithNilChild.new
        controller.process(:index)
        assert_equal "Hello string!", controller.response_body
      end
            
      test "when a grandchild has no layout specified, the child has an implied layout, and the " \
        "parent has specified a layout, use the child controller layout" do
          controller = WithChildOfImplied.new
          controller.process(:index)
          assert_equal "With Implied Hello string!", controller.response_body
      end
      
      test "raises an exception when specifying layout true" do
        assert_raises ArgumentError do
          Object.class_eval do
            class ::BadOmgFailLolLayout < AbstractControllerTests::Layouts::Base
              layout true
            end
          end
        end
      end
    end
  end
end