Class: TestRunner::TestEvaluator

Inherits:
Object
  • Object
show all
Includes:
RSpec::Matchers
Defined in:
lib/test-runner/test_evaluator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(test, scripts, **opts) ⇒ TestEvaluator

Returns a new instance of TestEvaluator.

Parameters:

Options Hash (**opts):

  • :default_timeout (Integer)
  • :destructive (Boolean)
  • :state_dir (String)
  • :sock_dir (String)


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
# File 'lib/test-runner/test_evaluator.rb', line 19

def initialize(test, scripts, **opts)
  scripts.each do |s|
    next if s.test == test

    raise ArgumentError, "script #{s.name} is not of test #{test.path}"
  end

  @test = test
  @scripts = scripts
  @config = TestConfig.build(test)
  @opts = opts
  @machines = {}
  @default_timeout = opts.fetch(:default_timeout)
  @used_container_ids = []

  @config['machines'].each do |name, cfg|
    var = :"@#{name}"
    m = OsVm::Machine.new(
      name,
      OsVm::MachineConfig.new(cfg),
      opts[:state_dir],
      opts[:sock_dir],
      default_timeout: opts[:default_timeout],
      hash_base: test.path
    )
    instance_variable_set(var, m)

    define_singleton_method(name) do
      instance_variable_get(var)
    end

    machines[name] = m
  end
end

Instance Attribute Details

#machinesHash<String, OsVm::Machine> (readonly)

Returns:

  • (Hash<String, OsVm::Machine>)


10
11
12
# File 'lib/test-runner/test_evaluator.rb', line 10

def machines
  @machines
end

Instance Method Details

#after(type, &block) ⇒ Object

Code block executed after suite, context or example

Parameters:

  • type (:suite, :context, :example)


174
175
176
177
178
179
180
181
182
183
# File 'lib/test-runner/test_evaluator.rb', line 174

def after(type, &block)
  if type == :suite
    @after << block
    return
  end

  raise 'Called outside of an example group, use from #describe block' if @group_stack.empty?

  @group_stack.last.add_after(type, block)
end

#before(type, &block) ⇒ Object

Code block executed before suite, context or example

Parameters:

  • type (:suite, :context, :example)


161
162
163
164
165
166
167
168
169
170
# File 'lib/test-runner/test_evaluator.rb', line 161

def before(type, &block)
  if type == :suite
    @before << block
    return
  end

  raise 'Called outside of an example group, use from #describe block' if @group_stack.empty?

  @group_stack.last.add_before(type, block)
end

#breakpointObject

Invoke interactive shell from within a test



122
123
124
# File 'lib/test-runner/test_evaluator.rb', line 122

def breakpoint
  binding.pry # rubocop:disable Lint/Debugger
end

#configure_examples {|| ... } ⇒ Object

Configure default settings for example groups

Yield Parameters:



128
129
130
# File 'lib/test-runner/test_evaluator.rb', line 128

def configure_examples
  yield(@example_config)
end

#describe(obj, order: nil) ⇒ Object Also known as: context

Create an example group

Example groups can be nested. Groups are evaluated in random order. Groups contain examples which are defined within the yielded block using #it.

Parameters:

  • obj (#to_s)
  • order (nil, :defined, :rand, Random, Integer) (defaults to: nil)

    order in which examples and subgroups are evaluated



140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
# File 'lib/test-runner/test_evaluator.rb', line 140

def describe(obj, order: nil, &)
  grp = ExampleGroup.new(obj, parent: @group_stack.last, order:, config: @example_config, &)

  if @group_stack.any?
    @group_stack.last.add_group(grp)
  else
    @example_groups << grp
  end

  @group_stack << grp

  grp.load

  @group_stack = @group_stack[0..-2]
  nil
end

#do_runObject (protected)



357
358
359
360
361
362
363
364
365
366
367
368
369
370
# File 'lib/test-runner/test_evaluator.rb', line 357

def do_run
  yield

  machines.each_value do |m|
    m.stop if m.running?
  end
ensure
  machines.each_value do |m|
    m.kill
    m.destroy if @opts[:destructive]
    m.finalize
    m.cleanup
  end
end

#example(message, pending: false, skip: false, &block) ⇒ Object Also known as: it

Create a test example

#it must be called from within a #describe block. Examples within a group are evaluated in random order.

Parameters:

  • message (String)
  • pending (Boolean) (defaults to: false)
  • skip (Boolean) (defaults to: false)


193
194
195
196
197
198
199
# File 'lib/test-runner/test_evaluator.rb', line 193

def example(message, pending: false, skip: false, &block)
  raise 'Called outside of an example group, use from #describe block' if @group_stack.empty?

  grp = @group_stack.last
  grp.add_example(Example.new(grp, message, pending:, skip: skip || block.nil?, &block))
  nil
end

#get_container_id(base = 'testct') ⇒ String

Generate container id that is unique to the test run

Returns:

  • (String)


227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
# File 'lib/test-runner/test_evaluator.rb', line 227

def get_container_id(base = 'testct')
  10.times do
    new_id = "#{base}-#{SecureRandom.hex(2)}"

    if @used_container_ids.include?(new_id)
      sleep(0.05)
      next
    end

    @used_container_ids << new_id
    return new_id
  end

  raise 'Unable to generate unique container id'
end

#get_example_count(groups: nil) ⇒ Object (protected)



342
343
344
345
346
347
348
349
350
351
# File 'lib/test-runner/test_evaluator.rb', line 342

def get_example_count(groups: nil)
  cnt = 0

  (groups || @example_groups).each do |grp|
    cnt += grp.examples.count(&:evaluate?)
    cnt += get_example_count(groups: grp.groups)
  end

  cnt
end

#interactiveObject

Run interactive shell



110
111
112
113
114
# File 'lib/test-runner/test_evaluator.rb', line 110

def interactive
  do_run do
    binding.pry # rubocop:disable Lint/Debugger
  end
end

#log(msg) ⇒ Object (protected)



353
354
355
# File 'lib/test-runner/test_evaluator.rb', line 353

def log(msg)
  warn "[#{Time.now}] #{msg}"
end

#pending(message = '', skip: false, &block) ⇒ Object

Create a pending example or mark the currently evaluated example as pending

Parameters:

  • message (String) (defaults to: '')
  • skip (Boolean) (defaults to: false)


206
207
208
209
210
211
212
# File 'lib/test-runner/test_evaluator.rb', line 206

def pending(message = '', skip: false, &block)
  if block || @current_example.nil?
    it(message, pending: true, skip:, &block)
  else
    @current_example.send(:set_pending)
  end
end

#run {|one| ... } ⇒ Hash<String, Boolean>

Run the test scripts

Yield Parameters:

  • one (Hash)

    result per test script

Returns:

  • (Hash<String, Boolean>)

    script name => result



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
# File 'lib/test-runner/test_evaluator.rb', line 57

def run
  ret = {}

  do_run do
    @scripts.each do |script|
      success = false
      t1 = Time.now

      begin
        log "Running script #{script.name}"

        test_script(script.name) do |progress|
          if progress[:type] == :example
            yield({
              type: :example,
              script: script.name,
              example: progress[:result].example.full_message,
              progress: progress[:progress],
              total: progress[:total],
              success: progress[:result].success?,
              pending: progress[:result].pending?,
              skip: progress[:result].skip?,
              elapsed_time: progress[:result].elapsed_time
            })
          end
        end

        t2 = Time.now
        log "Script #{script.name} finished in #{(t2 - t1).round(2)}s"
      rescue Exception => e # rubocop:disable Lint/RescueException
        t2 = Time.now
        log "Exception occurred while running script #{script.name} in #{(t2 - t1).round(2)}s"
        log e.full_message
      else
        success = true
      end

      result = {
        type: :script,
        script: script.name,
        success:,
        elapsed_time: t2 - t1
      }

      ret[script.name] = result
      yield(result) if block_given?
    end
  end

  ret
end

#run_examplesObject (protected)



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
# File 'lib/test-runner/test_evaluator.rb', line 285

def run_examples
  example_count = get_example_count
  i = 1

  log 'Evaluating examples'

  @before.each(&:call)

  results = @example_groups.shuffle.map do |grp|
    grp.evaluate do |type, example_or_result|
      if type == :before
        log "[#{i}/#{example_count}] Evaluating '#{example_or_result.full_message}'"
        @current_example = example_or_result
      else
        result = example_or_result

        status =
          if result.success?
            if result.pending?
              'pending'
            elsif result.skip?
              'skipped'
            else
              'succeeded'
            end
          elsif result.pending?
            'unexpectedly succeeded'
          else
            'failed'
          end

        log "[#{i}/#{example_count}] '#{result.title}' #{status} in #{result.elapsed_time.round(2)}s"

        yield({ type: :example, progress: i, total: example_count, result: result })
        @current_example = nil

        i += 1
      end
    end
  end.flatten

  @after.each(&:call)

  failed = results.select(&:failure?)
  return if failed.empty?

  warn "\n#{failed.count} examples failed:"

  failed.each do |result|
    warn result.title
    warn result.error
    warn "\n\n"
  end

  raise 'One or more examples failed'
end

#skip(message = '', &block) ⇒ Object

Create a skipped example or mark the currently evaluated example as pending

Parameters:

  • message (String) (defaults to: '')


216
217
218
219
220
221
222
223
# File 'lib/test-runner/test_evaluator.rb', line 216

def skip(message = '', &block)
  if block || @current_example.nil?
    it(message, skip: true, &block)
  else
    @current_example.send(:set_skip)
    throw :skip
  end
end

#start_allObject

Start all machines



117
118
119
# File 'lib/test-runner/test_evaluator.rb', line 117

def start_all
  machines.each(&:start)
end

#test_script(name) ⇒ Object (protected)



271
272
273
274
275
276
277
278
279
280
281
282
283
# File 'lib/test-runner/test_evaluator.rb', line 271

def test_script(name, &)
  @example_config = ExampleConfiguration.new
  @before = []
  @after = []
  @example_groups = []
  @group_stack = []

  binding.eval(@config['testScripts'][name]['script']) # rubocop:disable Security/Eval

  return if @example_groups.empty?

  run_examples(&)
end

#wait_for_block(name:, timeout: @default_timeout) ⇒ any

Wait for block to succeed

Yield until the code block returns a truthy value or a timeout is reached.

Parameters:

  • name (String)

    block name for error reporting

  • timeout (Integer) (defaults to: @default_timeout)

Returns:

  • (any)

    yielded value

Raises:

  • (OsVm::TimeoutError)


251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
# File 'lib/test-runner/test_evaluator.rb', line 251

def wait_for_block(name:, timeout: @default_timeout)
  t1 = Time.now
  cur_timeout = timeout

  loop do
    ret = yield
    return ret if ret

    cur_timeout = timeout - (Time.now - t1)

    if cur_timeout <= 0
      raise OsVm::TimeoutError, "Timeout occurred while waiting for #{name}"
    end

    sleep(1)
  end
end