aboutsummaryrefslogtreecommitdiffstats
path: root/actionpack/test/dispatch/debug_exceptions_test.rb
blob: 8960156d004a47b9218231b534f24e027fcdf516 (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
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
require 'abstract_unit'

class DebugExceptionsTest < ActionDispatch::IntegrationTest

  class Boomer
    attr_accessor :closed

    def initialize(detailed  = false)
      @detailed = detailed
      @closed = false
    end

    # We're obliged to implement this (even though it doesn't actually
    # get called here) to properly comply with the Rack SPEC
    def each
    end

    def close
      @closed = true
    end

    def method_that_raises
      raise StandardError.new 'error in framework'
    end

    def call(env)
      env['action_dispatch.show_detailed_exceptions'] = @detailed
      req = ActionDispatch::Request.new(env)
      case req.path
      when "/pass"
        [404, { "X-Cascade" => "pass" }, self]
      when "/not_found"
        raise AbstractController::ActionNotFound
      when "/runtime_error"
        raise RuntimeError
      when "/method_not_allowed"
        raise ActionController::MethodNotAllowed
      when "/unknown_http_method"
        raise ActionController::UnknownHttpMethod
      when "/not_implemented"
        raise ActionController::NotImplemented
      when "/unprocessable_entity"
        raise ActionController::InvalidAuthenticityToken
      when "/not_found_original_exception"
        begin
          raise AbstractController::ActionNotFound.new
        rescue
          raise ActionView::Template::Error.new('template')
        end
      when "/missing_template"
        raise ActionView::MissingTemplate.new(%w(foo), 'foo/index', %w(foo), false, 'mailer')
      when "/bad_request"
        raise ActionController::BadRequest
      when "/missing_keys"
        raise ActionController::UrlGenerationError, "No route matches"
      when "/parameter_missing"
        raise ActionController::ParameterMissing, :missing_param_key
      when "/original_syntax_error"
        eval 'broke_syntax =' # `eval` need for raise native SyntaxError at runtime
      when "/syntax_error_into_view"
        begin
          eval 'broke_syntax ='
        rescue Exception
          template = ActionView::Template.new(File.read(__FILE__),
                                              __FILE__,
                                              ActionView::Template::Handlers::Raw.new,
                                              {})
          raise ActionView::Template::Error.new(template)
        end
      when "/framework_raises"
        method_that_raises
      else
        raise "puke!"
      end
    end
  end

  RoutesApp = Struct.new(:routes).new(SharedTestRoutes)
  ProductionApp  = ActionDispatch::DebugExceptions.new(Boomer.new(false), RoutesApp)
  DevelopmentApp = ActionDispatch::DebugExceptions.new(Boomer.new(true), RoutesApp)

  test 'skip diagnosis if not showing detailed exceptions' do
    @app = ProductionApp
    assert_raise RuntimeError do
      get "/", headers: { 'action_dispatch.show_exceptions' => true }
    end
  end

  test 'skip diagnosis if not showing exceptions' do
    @app = DevelopmentApp
    assert_raise RuntimeError do
      get "/", headers: { 'action_dispatch.show_exceptions' => false }
    end
  end

  test 'raise an exception on cascade pass' do
    @app = ProductionApp
    assert_raise ActionController::RoutingError do
      get "/pass", headers: { 'action_dispatch.show_exceptions' => true }
    end
  end

  test 'closes the response body on cascade pass' do
    boomer = Boomer.new(false)
    @app = ActionDispatch::DebugExceptions.new(boomer)
    assert_raise ActionController::RoutingError do
      get "/pass", headers: { 'action_dispatch.show_exceptions' => true }
    end
    assert boomer.closed, "Expected to close the response body"
  end

  test 'displays routes in a table when a RoutingError occurs' do
    @app = DevelopmentApp
    get "/pass", headers: { 'action_dispatch.show_exceptions' => true }
    routing_table = body[/route_table.*<.table>/m]
    assert_match '/:controller(/:action)(.:format)', routing_table
    assert_match ':controller#:action', routing_table
    assert_no_match '&lt;|&gt;', routing_table, "there should not be escaped html in the output"
  end

  test 'displays request and response info when a RoutingError occurs' do
    @app = DevelopmentApp

    get "/pass", headers: { 'action_dispatch.show_exceptions' => true }

    assert_select 'h2', /Request/
    assert_select 'h2', /Response/
  end

  test "rescue with diagnostics message" do
    @app = DevelopmentApp

    get "/", headers: { 'action_dispatch.show_exceptions' => true }
    assert_response 500
    assert_match(/puke/, body)

    get "/not_found", headers: { 'action_dispatch.show_exceptions' => true }
    assert_response 404
    assert_match(/#{AbstractController::ActionNotFound.name}/, body)

    get "/method_not_allowed", headers: { 'action_dispatch.show_exceptions' => true }
    assert_response 405
    assert_match(/ActionController::MethodNotAllowed/, body)

    get "/unknown_http_method", headers: { 'action_dispatch.show_exceptions' => true }
    assert_response 405
    assert_match(/ActionController::UnknownHttpMethod/, body)

    get "/bad_request", headers: { 'action_dispatch.show_exceptions' => true }
    assert_response 400
    assert_match(/ActionController::BadRequest/, body)

    get "/parameter_missing", headers: { 'action_dispatch.show_exceptions' => true }
    assert_response 400
    assert_match(/ActionController::ParameterMissing/, body)
  end

  test "rescue with text error for xhr request" do
    @app = DevelopmentApp
    xhr_request_env = {'action_dispatch.show_exceptions' => true, 'HTTP_X_REQUESTED_WITH' => 'XMLHttpRequest'}

    get "/", headers: xhr_request_env
    assert_response 500
    assert_no_match(/<header>/, body)
    assert_no_match(/<body>/, body)
    assert_equal "text/plain", response.content_type
    assert_match(/RuntimeError\npuke/, body)

    get "/not_found", headers: xhr_request_env
    assert_response 404
    assert_no_match(/<body>/, body)
    assert_equal "text/plain", response.content_type
    assert_match(/#{AbstractController::ActionNotFound.name}/, body)

    get "/method_not_allowed", headers: xhr_request_env
    assert_response 405
    assert_no_match(/<body>/, body)
    assert_equal "text/plain", response.content_type
    assert_match(/ActionController::MethodNotAllowed/, body)

    get "/unknown_http_method", headers: xhr_request_env
    assert_response 405
    assert_no_match(/<body>/, body)
    assert_equal "text/plain", response.content_type
    assert_match(/ActionController::UnknownHttpMethod/, body)

    get "/bad_request", headers: xhr_request_env
    assert_response 400
    assert_no_match(/<body>/, body)
    assert_equal "text/plain", response.content_type
    assert_match(/ActionController::BadRequest/, body)

    get "/parameter_missing", headers: xhr_request_env
    assert_response 400
    assert_no_match(/<body>/, body)
    assert_equal "text/plain", response.content_type
    assert_match(/ActionController::ParameterMissing/, body)
  end

  test "does not show filtered parameters" do
    @app = DevelopmentApp

    get "/", params: { "foo"=>"bar" }, headers: { 'action_dispatch.show_exceptions' => true,
      'action_dispatch.parameter_filter' => [:foo] }
    assert_response 500
    assert_match("&quot;foo&quot;=&gt;&quot;[FILTERED]&quot;", body)
  end

  test "show registered original exception for wrapped exceptions" do
    @app = DevelopmentApp

    get "/not_found_original_exception", headers: { 'action_dispatch.show_exceptions' => true }
    assert_response 404
    assert_match(/AbstractController::ActionNotFound/, body)
  end

  test "named urls missing keys raise 500 level error" do
    @app = DevelopmentApp

    get "/missing_keys", headers: { 'action_dispatch.show_exceptions' => true }
    assert_response 500

    assert_match(/ActionController::UrlGenerationError/, body)
  end

  test "show the controller name in the diagnostics template when controller name is present" do
    @app = DevelopmentApp
    get("/runtime_error", headers: {
      'action_dispatch.show_exceptions' => true,
      'action_dispatch.request.parameters' => {
        'action' => 'show',
        'id' => 'unknown',
        'controller' => 'featured_tile'
      }
    })
    assert_response 500
    assert_match(/RuntimeError\n\s+in FeaturedTileController/, body)
  end

  test "show formatted params" do
    @app = DevelopmentApp

    params = {
      'id' => 'unknown',
      'someparam' => {
        'foo' => 'bar',
        'abc' => 'goo'
      }
    }

    get("/runtime_error", headers: {
      'action_dispatch.show_exceptions' => true,
      'action_dispatch.request.parameters' => {
        'action' => 'show',
        'controller' => 'featured_tile'
      }.merge(params)
    })
    assert_response 500

    assert_includes(body, CGI.escapeHTML(PP.pp(params, "", 200)))
  end

  test "sets the HTTP charset parameter" do
    @app = DevelopmentApp

    get "/", headers: { 'action_dispatch.show_exceptions' => true }
    assert_equal "text/html; charset=utf-8", response.headers["Content-Type"]
  end

  test 'uses logger from env' do
    @app = DevelopmentApp
    output = StringIO.new
    get "/", headers: { 'action_dispatch.show_exceptions' => true, 'action_dispatch.logger' => Logger.new(output) }
    assert_match(/puke/, output.rewind && output.read)
  end

  test 'uses backtrace cleaner from env' do
    @app = DevelopmentApp
    backtrace_cleaner = ActiveSupport::BacktraceCleaner.new

    backtrace_cleaner.stub :clean, ['passed backtrace cleaner'] do
      get "/", headers: { 'action_dispatch.show_exceptions' => true, 'action_dispatch.backtrace_cleaner' => backtrace_cleaner }
      assert_match(/passed backtrace cleaner/, body)
    end
  end

  test 'logs exception backtrace when all lines silenced' do
    output = StringIO.new
    backtrace_cleaner = ActiveSupport::BacktraceCleaner.new
    backtrace_cleaner.add_silencer { true }

    env = {'action_dispatch.show_exceptions' => true,
           'action_dispatch.logger' => Logger.new(output),
           'action_dispatch.backtrace_cleaner' => backtrace_cleaner}

    get "/", headers: env
    assert_operator((output.rewind && output.read).lines.count, :>, 10)
  end

  test 'display backtrace when error type is SyntaxError' do
    @app = DevelopmentApp

    get '/original_syntax_error', headers: { 'action_dispatch.backtrace_cleaner' => ActiveSupport::BacktraceCleaner.new }

    assert_response 500
    assert_select '#Application-Trace' do
      assert_select 'pre code', /syntax error, unexpected/
    end
  end

  test 'display backtrace on template missing errors' do
    @app = DevelopmentApp

    get "/missing_template"

    assert_select "header h1", /Template is missing/

    assert_select "#container h2", /^Missing template/

    assert_select '#Application-Trace'
    assert_select '#Framework-Trace'
    assert_select '#Full-Trace'

    assert_select 'h2', /Request/
  end

  test 'display backtrace when error type is SyntaxError wrapped by ActionView::Template::Error' do
    @app = DevelopmentApp

    get '/syntax_error_into_view', headers: { 'action_dispatch.backtrace_cleaner' => ActiveSupport::BacktraceCleaner.new }

    assert_response 500
    assert_select '#Application-Trace' do
      assert_select 'pre code', /syntax error, unexpected/
    end
  end

  test 'debug exceptions app shows user code that caused the error in source view' do
    @app = DevelopmentApp
    Rails.stub :root, Pathname.new('.') do
      cleaner = ActiveSupport::BacktraceCleaner.new.tap do |bc|
        bc.add_silencer { |line| line =~ /method_that_raises/ }
        bc.add_silencer { |line| line !~ %r{test/dispatch/debug_exceptions_test.rb} }
      end

      get '/framework_raises', headers: { 'action_dispatch.backtrace_cleaner' => cleaner }

      # Assert correct error
      assert_response 500
      assert_select 'h2', /error in framework/

      # assert source view line is the call to method_that_raises
      assert_select 'div.source:not(.hidden)' do
        assert_select 'pre .line.active', /method_that_raises/
      end

      # assert first source view (hidden) that throws the error
      assert_select 'div.source:first' do
        assert_select 'pre .line.active', /raise StandardError\.new/
      end

      # assert application trace refers to line that calls method_that_raises is first
      assert_select '#Application-Trace' do
        assert_select 'pre code a:first', %r{test/dispatch/debug_exceptions_test\.rb:\d+:in `call}
      end

      # assert framework trace that threw the error is first
      assert_select '#Framework-Trace' do
        assert_select 'pre code a:first', /method_that_raises/
      end
    end
  end
end