summaryrefslogtreecommitdiff
path: root/test/erb/test_erb.rb
blob: b2099af6b8e6d2b55fda0ee494e1fc4e1f8e8b31 (plain)
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
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
require 'test/unit'
require 'erb'

class TestERB < Test::Unit::TestCase
  class MyError < RuntimeError ; end

  def test_without_filename
    erb = ERB.new("<% raise ::TestERB::MyError %>")
    e = assert_raise(MyError) {
      erb.result
    }
    assert_match(/\A\(erb\):1\b/, e.backtrace[0])
  end

  def test_with_filename
    erb = ERB.new("<% raise ::TestERB::MyError %>")
    erb.filename = "test filename"
    e = assert_raise(MyError) {
      erb.result
    }
    assert_match(/\Atest filename:1\b/, e.backtrace[0])
  end

  def test_without_filename_with_safe_level
    erb = ERB.new("<% raise ::TestERB::MyError %>", 1)
    e = assert_raise(MyError) {
      erb.result
    }
    assert_match(/\A\(erb\):1\b/, e.backtrace[0])
  end

  def test_with_filename_and_safe_level
    erb = ERB.new("<% raise ::TestERB::MyError %>", 1)
    erb.filename = "test filename"
    e = assert_raise(MyError) {
      erb.result
    }
    assert_match(/\Atest filename:1\b/, e.backtrace[0])
  end
end

class TestERBCore < Test::Unit::TestCase
  def setup
    @erb = ERB
  end

  def test_01
    _test_01(nil)
    _test_01(0)
    _test_01(1)
    _test_01(2)
    _test_01(3)
  end

  def _test_01(safe)
    erb = @erb.new("hello")
    assert_equal(erb.result, "hello")

    erb = @erb.new("hello", safe, 0)
    assert_equal(erb.result, "hello")

    erb = @erb.new("hello", safe, 1)
    assert_equal(erb.result, "hello")

    erb = @erb.new("hello", safe, 2)
    assert_equal(erb.result, "hello")

    src = <<EOS
%% hi
= hello
<% 3.times do |n| %>
% n=0
* <%= n %>
<% end %>
EOS
      
    ans = <<EOS
%% hi
= hello

% n=0
* 0

% n=0
* 1

% n=0
* 2

EOS
    erb = @erb.new(src)
    assert_equal(ans, erb.result)
    erb = @erb.new(src, safe, 0)
    assert_equal(ans, erb.result)
    erb = @erb.new(src, safe, '')
    assert_equal(ans, erb.result)

    ans = <<EOS
%% hi
= hello
% n=0
* 0% n=0
* 1% n=0
* 2
EOS
    erb = @erb.new(src, safe, 1)
    assert_equal(ans.chomp, erb.result)
    erb = @erb.new(src, safe, '>')
    assert_equal(ans.chomp, erb.result)

    ans  = <<EOS
%% hi
= hello
% n=0
* 0
% n=0
* 1
% n=0
* 2
EOS
      
    erb = @erb.new(src, safe, 2)
    assert_equal(ans, erb.result)
    erb = @erb.new(src, safe, '<>')
    assert_equal(ans, erb.result)

    ans = <<EOS
% hi
= hello

* 0

* 0

* 0

EOS
    erb = @erb.new(src, safe, '%')
    assert_equal(ans, erb.result)

    ans = <<EOS
% hi
= hello
* 0* 0* 0
EOS
    erb = @erb.new(src, safe, '%>')
    assert_equal(ans.chomp, erb.result)

    ans = <<EOS
% hi
= hello
* 0
* 0
* 0
EOS
    erb = @erb.new(src, safe, '%<>')
    assert_equal(ans, erb.result)
  end

  def test_02_safe_04
    erb = @erb.new('<%=$SAFE%>', 4)
    assert_equal(erb.result(TOPLEVEL_BINDING.taint), '4')
  end

  class Foo; end

  def test_03_def_class
    erb = @erb.new('hello')
    cls = erb.def_class
    assert_equal(Object, cls.superclass)
    assert(cls.new.respond_to?('result'))
    cls = erb.def_class(Foo)
    assert_equal(Foo, cls.superclass)
    assert(cls.new.respond_to?('result'))
    cls = erb.def_class(Object, 'erb')
    assert_equal(Object, cls.superclass)
    assert(cls.new.respond_to?('erb'))
  end

  def test_04_percent
    src = <<EOS
%n = 1
<%= n%>
EOS
    assert_equal("1\n", ERB.new(src, nil, '%').result)

    src = <<EOS
<%
%>
EOS
    ans = "\n"
    assert_equal(ans, ERB.new(src, nil, '%').result)

    src = "<%\n%>"
    # ans = "\n"
    ans = ""
    assert_equal(ans, ERB.new(src, nil, '%').result)

    src = <<EOS
<%
n = 1
%><%= n%>
EOS
    assert_equal("1\n", ERB.new(src, nil, '%').result)

    src = <<EOS
%n = 1
%% <% n = 2
n.times do |i|%>
%% %%><%%<%= i%><%
end%>
EOS
    ans = <<EOS
% 
% %%><%0
% %%><%1
EOS
    assert_equal(ans, ERB.new(src, nil, '%').result)
  end

  class Bar; end

  def test_05_def_method
    assert(! Bar.new.respond_to?('hello'))
    Bar.module_eval do
      extend ERB::DefMethod
      fname = File.join(File.dirname(File.expand_path(__FILE__)), 'hello.erb')
      def_erb_method('hello', fname)
    end
    assert(Bar.new.respond_to?('hello'))

    assert(! Bar.new.respond_to?('hello_world'))
    erb = @erb.new('hello, world')
    Bar.module_eval do
      def_erb_method('hello_world', erb)
    end
    assert(Bar.new.respond_to?('hello_world'))    
  end

  def test_06_escape
    src = <<EOS
1.<%% : <%="<%%"%>
2.%%> : <%="%%>"%>
3.
% x = "foo"
<%=x%>
4.
%% print "foo"
5.
%% <%="foo"%>
6.<%="
% print 'foo'
"%>
7.<%="
%% print 'foo'
"%>
EOS
    ans = <<EOS
1.<% : <%%
2.%%> : %>
3.
foo
4.
% print "foo"
5.
% foo
6.
% print 'foo'

7.
%% print 'foo'

EOS
    assert_equal(ans, ERB.new(src, nil, '%').result)
  end

  def test_07_keep_lineno
    src = <<EOS
Hello, 
% x = "World"
<%= x%>
% raise("lineno")
EOS

    erb = ERB.new(src, nil, '%')
    begin
      erb.result
      assert(false)
    rescue
      assert_match(/\A\(erb\):4\b/, $@[0].to_s)
    end

    src = <<EOS
%>
Hello, 
<% x = "World%%>
"%>
<%= x%>
EOS

    ans = <<EOS
%>Hello, 
World%>
EOS
    assert_equal(ans, ERB.new(src, nil, '>').result)

    ans = <<EOS
%>
Hello, 

World%>
EOS
    assert_equal(ans, ERB.new(src, nil, '<>').result)

    ans = <<EOS
%>
Hello, 

World%>

EOS
    assert_equal(ans, ERB.new(src).result)

    src = <<EOS
Hello, 
<% x = "World%%>
"%>
<%= x%>
<% raise("lineno") %>
EOS

    erb = ERB.new(src)
    begin
      erb.result
      assert(false)
    rescue
      assert_match(/\A\(erb\):5\b/, $@[0].to_s)
    end

    erb = ERB.new(src, nil, '>')
    begin
      erb.result
      assert(false)
    rescue
      assert_match(/\A\(erb\):5\b/, $@[0].to_s)
    end

    erb = ERB.new(src, nil, '<>')
    begin
      erb.result
      assert(false)
    rescue
      assert_match(/\A\(erb\):5\b/, $@[0].to_s)
    end

    src = <<EOS
% y = 'Hello'
<%- x = "World%%>
"-%>
<%= x %><%- x = nil -%> 
<% raise("lineno") %>
EOS

    erb = ERB.new(src, nil, '-')
    begin
      erb.result
      assert(false)
    rescue
      assert_match(/\A\(erb\):5\b/, $@[0].to_s)
    end

    erb = ERB.new(src, nil, '%-')
    begin
      erb.result
      assert(false)
    rescue
      assert_match(/\A\(erb\):5\b/, $@[0].to_s)
    end
  end

  def test_08_explicit
    src = <<EOS
<% x = %w(hello world) -%>
NotSkip <%- y = x -%> NotSkip
<% x.each do |w| -%>
  <%- up = w.upcase -%>
  * <%= up %>
<% end -%>
 <%- z = nil -%> NotSkip <%- z = x %>
 <%- z.each do |w| -%>
   <%- down = w.downcase -%>
   * <%= down %>
   <%- up = w.upcase -%>
   * <%= up %>
 <%- end -%>
KeepNewLine <%- z = nil -%> 
EOS

   ans = <<EOS
NotSkip  NotSkip
  * HELLO
  * WORLD
 NotSkip 
   * hello
   * HELLO
   * world
   * WORLD
KeepNewLine  
EOS
   assert_equal(ans, ERB.new(src, nil, '-').result)
   assert_equal(ans, ERB.new(src, nil, '-%').result)
  end
end