summaryrefslogtreecommitdiff
path: root/t/test-parser.rb
blob: c3e782f0836cad349f25a299913066b55411c9bf (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
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
#!/usr/bin/ruby1.8 -I./lib/ -I../lib/


require 'json'
require 'test/unit'
require 'custodian/parser'




#
# Unit test for our parser.
#
class TestParser < Test::Unit::TestCase

  #
  # Create the test suite environment: NOP.
  #
  def setup
  end

  #
  # Destroy the test suite environment: NOP.
  #
  def teardown
  end






  #
  #  Test we can create a new parser object - specifically
  # that it throws exceptions if it is not given a filename
  # that exists.
  #
  def test_init

    #
    #  Missing filename -> Exception
    #
    assert_raise ArgumentError do
      MonitorConfig.new()
    end

    #
    #  Filename points to file that doesn't exist -> Exception
    #
    assert_raise ArgumentError do
      MonitorConfig.new("/file/doesn't/exist")
    end

    #
    #  File that exists -> No Exception.
    #
    assert_nothing_raised do
      MonitorConfig.new("/dev/null" )
    end

  end






  #
  #  Test that we can define macros.
  #
  def test_macros

    parser = MonitorConfig.new("/dev/null" )

    #
    #  With nothing loaded we should have zero macros - so the
    # count of our macros hash should be zero
    #
    macros = parser.macros
    assert( macros.empty? )
    assert( macros.size() == 0 )


    #
    #  Define a macro:
    #
    #  FOO =>  "kvm1.vm.bytemark.co.uk", "kvm2.vm.bytemark.co.uk".
    #
    #  Before defining it double-check it doesn't exist
    #
    assert( !(parser.is_macro?( "FOO" )) )

    #
    #  Add it.
    #
    ret = parser.define_macro( "FOO is kvm1.vm.bytemark.co.uk and kvm2.vm.bytemark.co.uk." )

    #
    #  The return value should be an array containing the values we added.
    #
    assert( ret.class.to_s == "Array" )
    assert( ret.size == 2 )
    assert( ret.include?( "kvm1.vm.bytemark.co.uk" ) )
    assert( ret.include?( "kvm2.vm.bytemark.co.uk" ) )


    #
    #  OK we should now have a single macro defined.
    #
    macros = parser.macros
    assert( macros.size() == 1 )


    #
    #  The macro name "FOO" should exist
    #
    assert( parser.is_macro?( "FOO" ) )

    #
    #  The contents of the FOO macro should have the value we expect
    #
    val = parser.get_macro_targets( "FOO" )
    assert( val.size() == 2 )
    assert( val.include?( "kvm1.vm.bytemark.co.uk" ) )
    assert( val.include?( "kvm2.vm.bytemark.co.uk" ) )


    #
    # Add a macro, using the parser directly.
    #
    # Before defining it double-check it doesn't exist
    #
    assert( !(parser.is_macro?( "BAR" )) )

    #
    # Add it.
    #
    ret = parser.parse_line( "BAR is example.vm.bytemark.co.uk and www.bytemark.co.uk." )

    #
    #  The return value should be an array containing the values
    # we added.
    #
    assert( ret.class.to_s == "Array" )
    assert( ret.size == 2 )
    assert( ret.include?( "example.vm.bytemark.co.uk" ) )
    assert( ret.include?( "www.bytemark.co.uk" ) )


    #
    #  OK we should now have two macros defined.
    #
    macros = parser.macros
    assert( macros.size() == 2 )

    #
    #  The macro name "BAR" should exist
    #
    assert( parser.is_macro?( "BAR" ) )

    #
    #  The contents of the BAR macro should have the value we expect
    #
    val = parser.get_macro_targets( "BAR" )
    assert( val.size() == 2 )
    assert( val.include?( "example.vm.bytemark.co.uk" ) )
    assert( val.include?( "www.bytemark.co.uk" ) )
  end






  #
  #  Test that we can define macros with only a single host.
  #
  def test_short_macros

    parser = MonitorConfig.new("/dev/null" )

    #
    #  With nothing loaded we should have zero macros - so the
    # count of our macros hash should be zero
    #
    macros = parser.macros
    assert( macros.empty? )
    assert( macros.size() == 0 )


    #
    #  Define a macro:
    #
    #  FOO =>  "kvm1.vm.bytemark.co.uk".
    #
    #  Before defining it double-check it doesn't exist
    #
    assert( !(parser.is_macro?( "FOO" )) )

    #
    #  Add it.
    #
    ret = parser.define_macro( "FOO is kvm1.vm.bytemark.co.uk." )

    #
    #  The return value should be an array containing the values we added.
    #
    assert( ret.class.to_s == "Array" )
    assert( ret.size == 1 )
    assert( ret.include?( "kvm1.vm.bytemark.co.uk" ) )


    #
    #  OK we should now have a single macro defined.
    #
    macros = parser.macros
    assert( macros.size() == 1 )

    #
    # Add a macro, using the parser directly.
    #
    # Before defining it double-check it doesn't exist
    #
    assert( !(parser.is_macro?( "BAR_HOSTS" )) )

    #
    # Add it.
    #
    ret = parser.parse_line( "BAR_HOSTS are example.vm.bytemark.co.uk." )

    #
    #  The return value should be an array containing the single value
    # we added.
    #
    assert( ret.class.to_s == "Array" )
    assert( ret.size == 1 )
    assert( ret.include?( "example.vm.bytemark.co.uk" ) )

    #
    #  OK we should now have two macros defined.
    #
    macros = parser.macros
    assert( macros.size() == 2 )

    #
    #  The macro name "BAR_HOSTS" should exist
    #
    assert( parser.is_macro?( "BAR_HOSTS" ) )

    #
    #  The contents of the BAR macro should have the single value we expect.
    #
    val = parser.get_macro_targets( "BAR_HOSTS" )
    assert( val.size() == 1 )
    assert( val.include?( "example.vm.bytemark.co.uk" ) )
  end






  #
  # We found a bug in our live code because macros didn't get expanded
  # unless they matched the regular expression "[A-Z_]" - here we test
  # that this bug is fixed.
  #
  # (The issue being that several of our macros have numeric digits in
  # their names.)
  #
  def test_misc_macro

    parser = MonitorConfig.new("/dev/null" )

    #
    #  With nothing loaded we should have zero macros - so the
    # count of our macros hash should be zero
    #
    macros = parser.macros
    assert( macros.empty? )
    assert( macros.size() == 0 )


    #
    # Define a new macro, and ensure it is now present
    #
    parser.parse_line( "FRONTLINESTAGING2 is 89.16.186.138 and 89.16.186.139 and 89.16.186.148." )
    macros = parser.macros
    assert( macros.size() == 1 )


    #
    # Test that we got a suitable value when lookup up the contents
    # of that newly defined macro.
    #
    values = parser.get_macro_targets( "FRONTLINESTAGING2" )
    assert(values.class.to_s == "Array" )


    #
    # Parse another line
    #
    parser.parse_line( "SWML_HOSTS is 212.110.191.9.")


    #
    # Ensure our macro-list is now bigger.
    #
    macros = parser.macros
    assert( macros.size() == 2 )

    #
    # And ensure the macro expansion is correct.
    #
    values = parser.get_macro_targets( "SWML_HOSTS" )
    assert(values.class.to_s == "Array" )
  end





  #
  #  Test that we can define tests which expand macros successfully.
  #
  def test_adding_tests

    parser = MonitorConfig.new("/dev/null" )

    #
    # Adding a test should return an array - an array of JSON strings.
    #
    ret = parser.parse_line( "example.vm.bytemark must run ssh otherwise 'I hate you'." )
    assert_equal( ret.class.to_s, "Array" )
    assert_equal( ret.size(), 1 )

    #
    # Define a macro - such that a single parsed line will become multiple
    # tests.
    #
    parser.parse_line( "MACRO is kvm1.vm.bytemark.co.uk and kvm1.vm.bytemark.co.uk and kvm3.vm.bytemark.co.uk." )
    assert( parser.is_macro?( "MACRO") )

    #
    # Now add a ping-test against that macro
    #
    ret = parser.parse_line( "MACRO must run ping otherwise 'ping failure'." )

    #
    # The resulting array should contain three JSON strings.
    #
    assert_equal( ret.class.to_s, "Array" )
    assert_equal( ret.size(), 3 )

    #
    # Ensure we look like valid JSON, and contains the correct hostnames.
    #
    ret.each do |test|
      assert( test =~ /^\{/ )
      assert( test =~ /(kvm1|kvm2|kvm3)\.vm.bytemark.co.uk/ )
    end

    #
    #  Now add more alerts, and ensure we find something sane:
    #
    #   1.  The addition should be JSON.
    #
    #   2.  The addition should have the correct test-type
    #
    %w( dns ftp http https jabber ldap ping rsync ssh smtp ).each do |name|

      ret = parser.parse_line( "MACRO must run #{name} otherwise '#{name} failure'." )

      #
      # The resulting array should contain three JSON strings.
      #
      assert_equal( ret.class.to_s, "Array" )
      assert_equal( ret.size(),3 )

      #
      #  The test-type should be set to the correct test for each of those
      # three tests we've added.
      #
      ret.each do |test|

        #
        #  Look for valid-seeming JSON with a string match
        #
        assert( test =~ /^\{/ )
        assert( test =~ /"test_type":"#{name}"/ )

        #
        #  Deserialize and look for a literal match
        #
        hash = JSON.parse( test )
        assert( hash['test_type'] == name )
      end
    end
  end





  #
  # Most services define a default port.  Ensure that is correct.
  #
  def test_default_ports

    expected = {
      "dns" => 53,
      "ftp" => 21,
      "ldap" => 389,
      "jabber" => 5222,
      "http" => 80,
      "rsync" => 873,
      "smtp" => 25,
      "ssh" => 22,
    }


    #
    #  Create the helper
    #
    parser = MonitorConfig.new("/dev/null" )


    #
    #  Run through our cases
    #
    expected.each do |test,port|

      #
      # Adding a test should return an array - an array of JSON strings.
      #
      ret = parser.parse_line( "example.vm.bytemark must run #{test} otherwise 'fail'." )
      assert_equal( ret.class.to_s, "Array" )
      assert_equal( ret.size(), 1 )

      #
      # Get the (sole) member of the array
      #
      addition = ret[0]

      #
      # Look for the correct port in our JSON.
      #
      assert( addition =~ /"test_port":#{port}/ )

      #
      # Deserialize and look for a literal match.
      #
      hash = JSON.parse( addition )
      assert( hash['test_port'] == port )
    end
  end



  #
  # Comment-handling
  #
  def test_adding_comments

    parser = MonitorConfig.new("/dev/null" )

    #
    # Adding comments should result in a nil return value.
    #
    assert( parser.parse_line( "# This is a comment" ).nil? )
    assert( parser.parse_line( "\n" ).nil? )
    assert( parser.parse_line( "" ).nil? )
    assert( parser.parse_line( nil ).nil? )
  end




  #
  # Test we can add tests which don't contain a trailing period.
  #
  def test_short_test

    parser = MonitorConfig.new("/dev/null" )

    #
    # Adding a simple test must work - no trailing whitespace required
    # after the test-type.
    #
    ret = parser.parse_line( "foo.vm.bytemark.co.uk must run ssh." )
    assert( ret )
    assert( ret.class.to_s == "Array" )
    assert( ret.size == 1 )

    #
    # Adding a simple test must work - no trailing period required
    # after the test-type.
    #
    ret = parser.parse_line( "foo.vm.bytemark.co.uk must run ssh" )
    assert( ret )
    assert( ret.class.to_s == "Array" )
    assert( ret.size == 1 )
  end

end