Module: Test::Unit::CoreAssertions

Defined in:
lib/core_assertions.rb

Defined Under Namespace

Classes: AllFailures

Constant Summary collapse

FailDesc = 
proc do |status, message = "", out = ""|
  now = Time.now
  proc do
    EnvUtil.failure_description(status, now, message, out)
  end
end
ABORT_SIGNALS = 
Signal.list.values_at(*%w"ILL ABRT BUS SEGV TERM")
TEST_DIR =

Signature:

  • nodoc:

File.join(__dir__, "test/unit")

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.glibc?(*ver) ⇒ Boolean

Returns:

  • (Boolean) 


1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
 
# File 'lib/core_assertions.rb', line 1006

def self.glibc?(*ver)
  unless defined?(@glibc)
    libc = `/usr/bin/ldd /bin/sh`[/^\s*libc.*=> *\K\S*/]
    if libc and /version (\d+)\.(\d+)\.$/ =~ IO.popen([libc], &:read)[]
      @glibc = [$1.to_i, $2.to_i]
    else
      @glibc = false
    end
  end
  version_match? ver, @glibc
end

.linux?(*ver) ⇒ Boolean

Returns:

  • (Boolean) 


996
997
998
999
1000
1001
 
# File 'lib/core_assertions.rb', line 996

def self.linux?(*ver)
  unless defined?(@linux)
    @linux = RUBY_PLATFORM.include?('linux') && `uname -r`.scan(/\d+/).map(&:to_i)
  end
  version_match? ver, @linux
end

.macos?(*ver) ⇒ Boolean

Returns:

  • (Boolean) 


1021
1022
1023
1024
1025
1026
 
# File 'lib/core_assertions.rb', line 1021

def self.macos?(*ver)
  unless defined?(@macos)
    @macos = RUBY_PLATFORM.include?('darwin') && `sw_vers -productVersion`.scan(/\d+/).map(&:to_i)
  end
  version_match? ver, @macos
end

.mingw? ⇒ Boolean

Returns:

  • (Boolean) 


964
965
966
 
# File 'lib/core_assertions.rb', line 964

def self.mingw?
  defined?(@mingw) ? @mingw : @mingw = RUBY_PLATFORM.include?('mingw')
end

.mswin? ⇒ Boolean

Platform predicates

Returns:

  • (Boolean) 


957
958
959
 
# File 'lib/core_assertions.rb', line 957

def self.mswin?
  defined?(@mswin) ? @mswin : @mswin = RUBY_PLATFORM.include?('mswin')
end

.sanitizers ⇒ Object

.version_compare(expected, actual) ⇒ Object 



975
976
977
978
 
# File 'lib/core_assertions.rb', line 975

def self.version_compare(expected, actual)
  expected.zip(actual).each {|e, a| z = (e <=> a); return z if z.nonzero?}
  0
end

.version_match?(expected, actual) ⇒ Boolean

Returns:

  • (Boolean) 


980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
 
# File 'lib/core_assertions.rb', line 980

def self.version_match?(expected, actual)
  if !actual
    false
  elsif expected.empty?
    true
  elsif expected.size == 1 and Range === (range = expected.first)
    b, e = range.begin, range.end
    return false if b and (c = version_compare(Array(b), actual)) > 0
    return false if e and (c = version_compare(Array(e), actual)) < 0
    return false if e and range.exclude_end? and c == 0
    true
  else
    version_compare(expected, actual).zero?
  end
end

.windows? ⇒ Boolean

Returns:

  • (Boolean) 


971
972
973
 
# File 'lib/core_assertions.rb', line 971

module_function def windows?
  mswin? or mingw?
end

Instance Method Details

#assert(test, *msgs) ⇒ Object

:call-seq:

assert(test, [failure_message])

Tests if test is true.

msg may be a String or a Proc. If msg is a String, it will be used as the failure message. Otherwise, the result of calling msg will be used as the message if the assertion fails.

If no msg is given, a default message will be used.

assert(false, "This was expected to be true")


619
620
621
622
623
624
625
626
627
628
629
 
# File 'lib/core_assertions.rb', line 619

def assert(test, *msgs)
  case msg = msgs.first
  when String, Proc
  when nil
    msgs.shift
  else
    bt = caller.reject { |s| s.start_with?(TEST_DIR) }
    raise ArgumentError, "assertion message must be String or Proc, but #{msg.class} was given.", bt
  end unless msgs.empty?
  super
end

#assert_all?(obj, m = nil, &blk) ⇒ Boolean

Returns:

  • (Boolean) 


846
847
848
849
850
851
852
853
854
 
# File 'lib/core_assertions.rb', line 846

def assert_all?(obj, m = nil, &blk)
  failed = []
  obj.each do |*a, &b|
    unless blk.call(*a, &b)
      failed << (a.size > 1 ? a : a[0])
    end
  end
  assert(failed.empty?, message(m) {failed.pretty_inspect})
end

#assert_all_assertions(msg = nil) ⇒ Object Also known as: all_assertions 



856
857
858
859
860
861
 
# File 'lib/core_assertions.rb', line 856

def assert_all_assertions(msg = nil)
  all = AllFailures.new
  yield all
ensure
  assert(all.pass?, message(msg) {all.message.chomp(".")})
end

#assert_all_assertions_foreach(msg = nil, *keys, &block) ⇒ Object Also known as: all_assertions_foreach 



864
865
866
867
868
869
 
# File 'lib/core_assertions.rb', line 864

def assert_all_assertions_foreach(msg = nil, *keys, &block)
  all = AllFailures.new
  all.foreach(*keys, &block)
ensure
  assert(all.pass?, message(msg) {all.message.chomp(".")})
end

#assert_deprecated_warn(mesg = /deprecated/, &block) ⇒ Object 



744
745
746
747
748
 
# File 'lib/core_assertions.rb', line 744

def assert_deprecated_warn(mesg = /deprecated/, &block)
  assert_warn(mesg) do
    EnvUtil.deprecation_warning(&block)
  end
end

#assert_deprecated_warning(mesg = /deprecated/, &block) ⇒ Object 



738
739
740
741
742
 
# File 'lib/core_assertions.rb', line 738

def assert_deprecated_warning(mesg = /deprecated/, &block)
  assert_warning(mesg) do
    EnvUtil.deprecation_warning(&block)
  end
end

#assert_file ⇒ Object 



97
98
99
 
# File 'lib/core_assertions.rb', line 97

def assert_file
  AssertFile
end

#assert_in_out_err(args, test_stdin = "", test_stdout = [], test_stderr = [], message = nil, success: nil, failed: nil, gems: false, **opt) ⇒ Object 



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
 
# File 'lib/core_assertions.rb', line 108

def assert_in_out_err(args, test_stdin = "", test_stdout = [], test_stderr = [], message = nil,
                      success: nil, failed: nil, gems: false, **opt)
  args = Array(args).dup
  unless gems.nil?
    args.insert((Hash === args[0] ? 1 : 0), "--#{gems ? 'enable' : 'disable'}=gems")
  end
  stdout, stderr, status = EnvUtil.invoke_ruby(args, test_stdin, true, true, **opt)
  desc = failed[status, message, stderr] if failed
  desc ||= FailDesc[status, message, stderr]
  if block_given?
    raise "test_stdout ignored, use block only or without block" if test_stdout != []
    raise "test_stderr ignored, use block only or without block" if test_stderr != []
    yield(stdout.lines.map {|l| l.chomp }, stderr.lines.map {|l| l.chomp }, status)
  else
    all_assertions(desc) do |a|
      [["stdout", test_stdout, stdout], ["stderr", test_stderr, stderr]].each do |key, exp, act|
        a.for(key) do
          if exp.is_a?(Regexp)
            assert_match(exp, act)
          elsif exp.all? {|e| String === e}
            assert_equal(exp, act.lines.map {|l| l.chomp })
          else
            assert_pattern_list(exp, act)
          end
        end
      end
      unless success.nil?
        a.for("success?") do
          if success
            assert_predicate(status, :success?)
          else
            assert_not_predicate(status, :success?)
          end
        end
      end
    end
    status
  end
end

#assert_join_threads(threads, message = nil) ⇒ Object

threads should respond to shift method. Array can be used.



816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
 
# File 'lib/core_assertions.rb', line 816

def assert_join_threads(threads, message = nil)
  errs = []
  values = []
  while th = threads.shift
    begin
      values << th.value
    rescue Exception
      errs << [th, $!]
      th = nil
    end
  end
  values
ensure
  if th&.alive?
    th.raise(Timeout::Error.new)
    th.join rescue errs << [th, $!]
  end
  if !errs.empty?
    msg = "exceptions on #{errs.length} threads:\n" +
      errs.map {|t, err|
      "#{t.inspect}:\n" +
        (err.respond_to?(:full_message) ? err.full_message(highlight: false, order: :top) : err.message)
    }.join("\n---\n")
    if message
      msg = "#{message}\n#{msg}"
    end
    raise Test::Unit::AssertionFailedError, msg
  end
end

#assert_linear_performance(seq, rehearsal: nil, pre: ->(n) {n}) ⇒ Object

Expect seq to respond to first and each methods, e.g., Array, Range, Enumerator::ArithmeticSequence and other Enumerable-s, and each elements should be size factors.

:yield: each elements of seq.



897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
 
# File 'lib/core_assertions.rb', line 897

def assert_linear_performance(seq, rehearsal: nil, pre: ->(n) {n})
  pend "No PERFORMANCE_CLOCK found" unless defined?(PERFORMANCE_CLOCK)

  # Timeout testing generally doesn't work when RJIT compilation happens.
  rjit_enabled = defined?(RubyVM::RJIT) && RubyVM::RJIT.enabled?
  measure = proc do |arg, message|
    st = Process.clock_gettime(PERFORMANCE_CLOCK)
    yield(*arg)
    t = (Process.clock_gettime(PERFORMANCE_CLOCK) - st)
    assert_operator 0, :<=, t, message unless rjit_enabled
    t
  end

  first = seq.first
  *arg = pre.call(first)
  raw_times = (0..(rehearsal || (2 * first))).map do
    measure[arg, "rehearsal"].nonzero?
  end
  times = raw_times.compact
  raise "all measurements are zero: #{raw_times.inspect}" if times.empty?
  tmin, tmax = times.minmax

  # safe_factor * tmax * rehearsal_time_variance_factor(equals to 1 when variance is small)
  tbase = 10 * tmax * [(tmax / tmin) ** 2 / 4, 1].max
  info = "(tmin: #{tmin}, tmax: #{tmax}, tbase: #{tbase})"

  seq.each do |i|
    next if i == first
    t = tbase * i.fdiv(first)
    *arg = pre.call(i)
    message = "[#{i}]: in #{t}s #{info}"
    Timeout.timeout(t, Timeout::Error, message) do
      measure[arg, message]
    end
  end
end

#assert_no_memory_leak(args, prepare, code, message = nil, limit: 2.0, rss: false, **opt) ⇒ Object 



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
 
# File 'lib/core_assertions.rb', line 167

def assert_no_memory_leak(args, prepare, code, message=nil, limit: 2.0, rss: false, **opt)
  # TODO: consider choosing some appropriate limit for RJIT and stop skipping this once it does not randomly fail
  pend 'assert_no_memory_leak may consider RJIT memory usage as leak' if defined?(RubyVM::RJIT) && RubyVM::RJIT.enabled?
  # For previous versions which implemented MJIT
  pend 'assert_no_memory_leak may consider MJIT memory usage as leak' if defined?(RubyVM::MJIT) && RubyVM::MJIT.enabled?
  # ASAN has the same problem - its shadow memory greatly increases memory usage
  # (plus asan has better ways to detect memory leaks than this assertion)
  pend 'assert_no_memory_leak may consider ASAN memory usage as leak' if sanitizers&.asan_enabled?

  require_relative 'memory_status'
  raise Test::Unit::PendedError, "unsupported platform" unless defined?(Memory::Status)

  token_dump, token_re = new_test_token
  envs = args.shift if Array === args and Hash === args.first
  args = [
    "--disable=gems",
    "-r", File.expand_path("../memory_status", __FILE__),
    *args,
    "-v", "-",
  ]
  if defined? Memory::NO_MEMORY_LEAK_ENVS then
    envs ||= {}
    newenvs = envs.merge(Memory::NO_MEMORY_LEAK_ENVS) { |_, _, _| break }
    envs = newenvs if newenvs
  end
  args.unshift(envs) if envs
  cmd = [
    'END {STDERR.puts '"#{token_dump}"'"FINAL=#{Memory::Status.new}"}',
    prepare,
    'STDERR.puts('"#{token_dump}"'"START=#{$initial_status = Memory::Status.new}")',
    '$initial_size = $initial_status.size',
    code,
    'GC.start',
  ].join("\n")
  _, err, status = EnvUtil.invoke_ruby(args, cmd, true, true, **opt)
  before = err.sub!(/^#{token_re}START=(\{.*\})\n/, '') && Memory::Status.parse($1)
  after = err.sub!(/^#{token_re}FINAL=(\{.*\})\n/, '') && Memory::Status.parse($1)
  assert(status.success?, FailDesc[status, message, err])
  ([:size, (rss && :rss)] & after.members).each do |n|
    b = before[n]
    a = after[n]
    next unless a > 0 and b > 0
    assert_operator(a.fdiv(b), :<, limit, message(message) {"#{n}: #{b} => #{a}"})
  end
rescue LoadError
  pend
end

#assert_normal_exit(testsrc, message = '', child_env: nil, **opt) ⇒ Object 



283
284
285
286
287
288
289
290
291
292
 
# File 'lib/core_assertions.rb', line 283

def assert_normal_exit(testsrc, message = '', child_env: nil, **opt)
  assert_valid_syntax(testsrc, caller_locations(1, 1)[0])
  if child_env
    child_env = [child_env]
  else
    child_env = []
  end
  out, _, status = EnvUtil.invoke_ruby(child_env + %W'-W0', testsrc, true, :merge_to_stdout, **opt)
  assert !status.signaled?, FailDesc[status, message, out]
end

#assert_not_respond_to(obj, meth, *priv, msg = nil) ⇒ Object

:call-seq:

assert_not_respond_to( object, method, failure_message = nil )

Tests if the given Object does not respond to method.

An optional failure message may be provided as the final argument.

assert_not_respond_to("hello", :reverse)  #Fails
assert_not_respond_to("hello", :does_not_exist)  #Succeeds


663
664
665
666
667
668
669
670
671
672
673
674
675
 
# File 'lib/core_assertions.rb', line 663

def assert_not_respond_to(obj, (meth, *priv), msg = nil)
  unless priv.empty?
    msg = message(msg) {
      "Expected #{mu_pp(obj)} (#{obj.class}) to not respond to ##{meth}#{" privately" if priv[0]}"
    }
    return assert !obj.respond_to?(meth, *priv), msg
  end
  #get rid of overcounting
  if caller_locations(1, 1)[0].path.start_with?(TEST_DIR)
    return unless obj.respond_to?(meth)
  end
  refute_respond_to(obj, meth, msg)
end

#assert_nothing_raised(*args) ⇒ Object

:call-seq:

assert_nothing_raised( *args, &block )

If any exceptions are given as arguments, the assertion will fail if one of those exceptions are raised. Otherwise, the test fails if any exceptions are raised.

The final argument may be a failure message.

assert_nothing_raised RuntimeError do
 raise Exception #Assertion passes, Exception is not a RuntimeError
end

assert_nothing_raised do
 raise Exception #Assertion fails
end


231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
 
# File 'lib/core_assertions.rb', line 231

def assert_nothing_raised(*args)
  self._assertions += 1
  if Module === args.last
    msg = nil
  else
    msg = args.pop
  end
  begin
    yield
  rescue Test::Unit::PendedError, *(Test::Unit::AssertionFailedError if args.empty?)
    raise
  rescue *(args.empty? ? Exception : args) => e
    msg = message(msg) {
      "Exception raised:\n<#{mu_pp(e)}>\n""Backtrace:\n" <<
      Test.filter_backtrace(e.backtrace).map{|frame| "  #{frame}"}.join("\n")
    }
    raise Test::Unit::AssertionFailedError, msg.call, e.backtrace
  end
end

#assert_pattern_list(pattern_list, actual, message = nil) ⇒ Object

pattern_list is an array which contains regexp, string and :. : means any sequence.

pattern_list is anchored. Use [:, regexp/string, :] for non-anchored match.



682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
 
# File 'lib/core_assertions.rb', line 682

def assert_pattern_list(pattern_list, actual, message=nil)
  rest = actual
  anchored = true
  pattern_list.each_with_index {|pattern, i|
    if pattern == :*
      anchored = false
    else
      if anchored
        match = rest.rindex(pattern, 0)
      else
        match = rest.index(pattern)
      end
      if match
        post_match = $~ ? $~.post_match : rest[match+pattern.size..-1]
      else
        msg = message(msg) {
          expect_msg = "Expected #{mu_pp pattern}\n"
          if /\n[^\n]/ =~ rest
            actual_mesg = +"to match\n"
            rest.scan(/.*\n+/) {
              actual_mesg << '  ' << $&.inspect << "+\n"
            }
            actual_mesg.sub!(/\+\n\z/, '')
          else
            actual_mesg = "to match " + mu_pp(rest)
          end
          actual_mesg << "\nafter #{i} patterns with #{actual.length - rest.length} characters"
          expect_msg + actual_mesg
        }
        assert false, msg
      end
      rest = post_match
      anchored = true
    end
  }
  if anchored
    assert_equal("", rest)
  end
end

#assert_ractor(src, args: [], require: nil, require_relative: nil, file: nil, line: nil, ignore_stderr: nil, **opt) ⇒ Object

Run Ractor-related test without influencing the main test suite



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
 
# File 'lib/core_assertions.rb', line 416

def assert_ractor(src, args: [], require: nil, require_relative: nil, file: nil, line: nil, ignore_stderr: nil, **opt)
  omit unless defined?(Ractor)

  # https://bugs.ruby-lang.org/issues/21262
  shim_value = "class Ractor; alias value take; end" unless Ractor.method_defined?(:value)
  shim_join = "class Ractor; alias join take; end" unless Ractor.method_defined?(:join)

  if require
    require = [require] unless require.is_a?(Array)
    require = require.map {|r| "require #{r.inspect}"}.join("\n")
  end

  if require_relative
    dir = File.dirname(caller_locations[0,1][0].absolute_path)
    full_path = File.expand_path(require_relative, dir)
    require = "#{require}; require #{full_path.inspect}"
  end

  assert_separately(args, file, line, <<~RUBY, ignore_stderr: ignore_stderr, **opt)
    #{shim_value}
    #{shim_join}
    #{require}
    previous_verbose = $VERBOSE
    $VERBOSE = nil
    Ractor.new {} # trigger initial warning
    $VERBOSE = previous_verbose
    #{src}
  RUBY
end

#assert_raise(*exp, &b) ⇒ Object

:call-seq:

assert_raise( *args, &block )

Tests if the given block raises an exception. Acceptable exception types may be given as optional arguments. If the last argument is a String, it will be used as the error message.

assert_raise do #Fails, no Exceptions are raised
end

assert_raise NameError do
 puts x  #Raises NameError, so assertion succeeds
end


488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
 
# File 'lib/core_assertions.rb', line 488

def assert_raise(*exp, &b)
  case exp.last
  when String, Proc
    msg = exp.pop
  end

  begin
    yield
  rescue Test::Unit::PendedError => e
    return e if exp.include? Test::Unit::PendedError
    raise e
  rescue Exception => e
    expected = exp.any? { |ex|
      if ex.instance_of? Module then
        e.kind_of? ex
      else
        e.instance_of? ex
      end
    }

    assert expected, proc {
      flunk(message(msg) {"#{mu_pp(exp)} exception expected, not #{mu_pp(e)}"})
    }

    return e
  ensure
    unless e
      exp = exp.first if exp.size == 1

      flunk(message(msg) {"#{mu_pp(exp)} expected but nothing was raised"})
    end
  end
end

#assert_raise_kind_of(*exp, &b) ⇒ Object

:call-seq:

assert_raise_kind_of(*args, &block)

Tests if the given block raises one of the given exceptions or sub exceptions of the given exceptions. If the last argument is a String, it will be used as the error message.

assert_raise do #Fails, no Exceptions are raised
end

assert_raise SystemCallErr do
 Dir.chdir(__FILE__) #Raises Errno::ENOTDIR, so assertion succeeds
end


581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
 
# File 'lib/core_assertions.rb', line 581

def assert_raise_kind_of(*exp, &b)
  case exp.last
  when String, Proc
    msg = exp.pop
  end

  begin
    yield
  rescue Test::Unit::PendedError => e
    raise e unless exp.include? Test::Unit::PendedError
  rescue *exp => e
    pass
  rescue Exception => e
    flunk(message(msg) {"#{mu_pp(exp)} family exception expected, not #{mu_pp(e)}"})
  ensure
    unless e
      exp = exp.first if exp.size == 1

      flunk(message(msg) {"#{mu_pp(exp)} family expected but nothing was raised"})
    end
  end
  e
end

#assert_raise_with_message(exception, expected, msg = nil, &block) ⇒ Object

:call-seq:

assert_raise_with_message(exception, expected, msg = nil, &block)

Tests if the given block raises an exception with the expected message.

assert_raise_with_message(RuntimeError, "foo") do
 nil #Fails, no Exceptions are raised
end

assert_raise_with_message(RuntimeError, "foo") do
 raise ArgumentError, "foo" #Fails, different Exception is raised
end

assert_raise_with_message(RuntimeError, "foo") do
 raise "bar" #Fails, RuntimeError is raised but the message differs
end

assert_raise_with_message(RuntimeError, "foo") do
 raise "foo" #Raises RuntimeError with the message, so assertion succeeds
end


543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
 
# File 'lib/core_assertions.rb', line 543

def assert_raise_with_message(exception, expected, msg = nil, &block)
  case expected
  when String
    assert = :assert_equal
  else
    assert_respond_to(expected, :===)
    assert = :assert_match
  end

  ex = assert_raise(exception, msg || proc {"Exception(#{exception}) with message matches to #{expected.inspect}"}) do
    yield
  end
  m = ex.message
  msg = message(msg, "") {"Expected Exception(#{exception}) was raised, but the message doesn't match"}

  if assert == :assert_equal
    assert_equal(expected, m, msg)
  else
    msg = message(msg) { "Expected #{mu_pp expected} to match #{mu_pp m}" }
    assert expected =~ m, msg
    block.binding.eval("proc{|_|$~=_}").call($~)
  end
  ex
end

#assert_respond_to(obj, meth, *priv, msg = nil) ⇒ Object

:call-seq:

assert_respond_to( object, method, failure_message = nil )

Tests if the given Object responds to method.

An optional failure message may be provided as the final argument.

assert_respond_to("hello", :reverse)  #Succeeds
assert_respond_to("hello", :does_not_exist)  #Fails


640
641
642
643
644
645
646
647
648
649
650
651
652
 
# File 'lib/core_assertions.rb', line 640

def assert_respond_to(obj, (meth, *priv), msg = nil)
  unless priv.empty?
    msg = message(msg) {
      "Expected #{mu_pp(obj)} (#{obj.class}) to respond to ##{meth}#{" privately" if priv[0]}"
    }
    return assert obj.respond_to?(meth, *priv), msg
  end
  #get rid of overcounting
  if caller_locations(1, 1)[0].path.start_with?(TEST_DIR)
    return if obj.respond_to?(meth)
  end
  super(obj, meth, msg)
end

#assert_ruby_status(args, test_stdin = "", message = nil, **opt) ⇒ Object 



294
295
296
297
298
299
300
 
# File 'lib/core_assertions.rb', line 294

def assert_ruby_status(args, test_stdin="", message=nil, **opt)
  out, _, status = EnvUtil.invoke_ruby(args, test_stdin, true, :merge_to_stdout, **opt)
  desc = FailDesc[status, message, out]
  assert(!status.signaled?, desc)
  message ||= "ruby exit status is not success:"
  assert(status.success?, desc)
end

#assert_separately(args, file = nil, line = nil, src, ignore_stderr: nil, **opt) ⇒ Object 



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
 
# File 'lib/core_assertions.rb', line 342

def assert_separately(args, file = nil, line = nil, src, ignore_stderr: nil, **opt)
  unless file and line
    loc, = caller_locations(1,1)
    file ||= loc.path
    line ||= loc.lineno
  end
  capture_stdout = true
  unless /mswin|mingw/ =~ RbConfig::CONFIG['host_os']
    capture_stdout = false
    opt[:out] = Test::Unit::Runner.output if defined?(Test::Unit::Runner)
    res_p, res_c = IO.pipe
    opt[:ios] = [res_c]
  end
  token_dump, token_re = new_test_token
  src = <<eom
# -*- coding: #{line += __LINE__; src.encoding}; -*-
BEGIN {
  require "test/unit";include Test::Unit::Assertions;require #{__FILE__.dump};include Test::Unit::CoreAssertions
  separated_runner #{token_dump}, #{res_c&.fileno || 'nil'}
}
#{line -= __LINE__; src}
eom
  args = args.dup
  args.insert((Hash === args.first ? 1 : 0), "-w", "--disable=gems", *$:.map {|l| "-I#{l}"})
  args << "--debug" if RUBY_ENGINE == 'jruby' # warning: tracing (e.g. set_trace_func) will not capture all events without --debug flag
  stdout, stderr, status = EnvUtil.invoke_ruby(args, src, capture_stdout, true, **opt)

  if sanitizers&.lsan_enabled?
    # LSAN may output messages like the following line into stderr. We should ignore it.
    #   ==276855==Running thread 276851 was not suspended. False leaks are possible.
    # See https://github.com/google/sanitizers/issues/1479
    stderr.gsub!(/==\d+==Running thread \d+ was not suspended\. False leaks are possible\.\n/, "")
  end
ensure
  if res_c
    res_c.close
    res = res_p.read
    res_p.close
  else
    res = stdout
  end
  raise if $!
  abort = status.coredump? || (status.signaled? && ABORT_SIGNALS.include?(status.termsig))
  marshal_error = nil
  assert(!abort, FailDesc[status, nil, stderr])
  res.scan(/^<error id="#{token_re}" assertions=(\d+)>\n(.*?)\n(?=<\/error id="#{token_re}">$)/m) do
    self._assertions += $1.to_i
    res = Marshal.load($2.unpack1("m")) or next
  rescue => marshal_error
    ignore_stderr = nil
    res = nil
  else
    next if SystemExit === res
    if bt = res.backtrace
      bt.each do |l|
        l.sub!(/\A-:(\d+)/){"#{file}:#{line + $1.to_i}"}
      end
      bt.concat(caller)
    else
      res.set_backtrace(caller)
    end
    raise res
  end

  # really did it succeed?
  unless ignore_stderr
    # the body of assert_separately must not output anything to detect error
    assert(stderr.empty?, FailDesc[status, "assert_separately failed with error message", stderr])
  end
  assert(status.success?, FailDesc[status, "assert_separately failed", stderr])
  raise marshal_error if marshal_error
end

#assert_throw(tag, msg = nil) ⇒ Object

:call-seq:

assert_throw( tag, failure_message = nil, &block )

Fails unless the given block throws tag, returns the caught value otherwise.

An optional failure message may be provided as the final argument.

tag = Object.new
assert_throw(tag, "#{tag} was not thrown!") do
 throw tag
end


458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
 
# File 'lib/core_assertions.rb', line 458

def assert_throw(tag, msg = nil)
  ret = catch(tag) do
    begin
      yield(tag)
    rescue UncaughtThrowError => e
      thrown = e.tag
    end
    msg = message(msg) {
      "Expected #{mu_pp(tag)} to have been thrown"\
      "#{%Q[, not #{thrown}] if thrown}"
    }
    assert(false, msg)
  end
  assert(true)
  ret
end

#assert_valid_syntax(code, *args, **opt) ⇒ Object 



274
275
276
277
278
279
280
281
 
# File 'lib/core_assertions.rb', line 274

def assert_valid_syntax(code, *args, **opt)
  prepare_syntax_check(code, *args, **opt) do |src, fname, line, mesg|
    yield if defined?(yield)
    assert_nothing_raised(SyntaxError, mesg) do
      assert_equal(:ok, syntax_check(src, fname, line), mesg)
    end
  end
end

#assert_warn(*args) ⇒ Object 



734
735
736
 
# File 'lib/core_assertions.rb', line 734

def assert_warn(*args)
  assert_warning(*args) {$VERBOSE = false; yield}
end

#assert_warning(pat, msg = nil) ⇒ Object 



722
723
724
725
726
727
728
729
730
731
732
 
# File 'lib/core_assertions.rb', line 722

def assert_warning(pat, msg = nil)
  result = nil
  stderr = EnvUtil.with_default_internal(of: pat) {
    EnvUtil.verbose_warning {
      result = yield
    }
  }
  msg = message(msg) {diff pat, stderr}
  assert(pat === stderr, msg)
  result
end

#diff(exp, act) ⇒ Object 



934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
 
# File 'lib/core_assertions.rb', line 934

def diff(exp, act)
  require 'pp'
  q = PP.new(+"")
  q.guard_inspect_key do
    q.group(2, "expected: ") do
      q.pp exp
    end
    q.text q.newline
    q.group(2, "actual: ") do
      q.pp act
    end
    q.flush
  end
  q.output
end

#mu_pp(obj) ⇒ Object

Signature:

  • nodoc:



93
94
95
 
# File 'lib/core_assertions.rb', line 93

def mu_pp(obj) #:nodoc:
  obj.pretty_inspect.chomp
end

#new_test_token ⇒ Object 



950
951
952
953
 
# File 'lib/core_assertions.rb', line 950

def new_test_token
  token = "\e[7;1m#{$$.to_s}:#{Time.now.strftime('%s.%L')}:#{rand(0x10000).to_s(16)}:\e[m"
  return token.dump, Regexp.quote(token)
end

#prepare_syntax_check(code, fname = nil, mesg = nil, verbose: nil) ⇒ Object 



251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
 
# File 'lib/core_assertions.rb', line 251

def prepare_syntax_check(code, fname = nil, mesg = nil, verbose: nil)
  fname ||= caller_locations(2, 1)[0]
  mesg ||= fname.to_s
  verbose, $VERBOSE = $VERBOSE, verbose
  case
  when Array === fname
    fname, line = *fname
  when defined?(fname.path) && defined?(fname.lineno)
    fname, line = fname.path, fname.lineno
  else
    line = 1
  end
  yield(code, fname, line, message(mesg) {
          if code.end_with?("\n")
            "```\n#{code}```\n"
          else
            "```\n#{code}\n```\n""no-newline"
          end
        })
ensure
  $VERBOSE = verbose
end

#separated_runner(token, out = nil) ⇒ Object 



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/core_assertions.rb', line 304

def separated_runner(token, out = nil)
  include(*Test::Unit::TestCase.ancestors.select {|c| !c.is_a?(Class) })

  out = out ? IO.new(out, 'w') : STDOUT

  # avoid method redefinitions
  out_write = out.method(:write)
  integer_to_s = Integer.instance_method(:to_s)
  array_pack = Array.instance_method(:pack)
  marshal_dump = Marshal.method(:dump)
  assertions_ivar_set = Test::Unit::Assertions.method(:instance_variable_set)
  assertions_ivar_get = Test::Unit::Assertions.method(:instance_variable_get)
  Test::Unit::Assertions.module_eval do
    @_assertions = 0

    undef _assertions=
    define_method(:_assertions=, ->(n) {assertions_ivar_set.call(:@_assertions, n)})

    undef _assertions
    define_method(:_assertions, -> {assertions_ivar_get.call(:@_assertions)})
  end
  # assume Method#call and UnboundMethod#bind_call need to work as the original

  at_exit {
    assertions = assertions_ivar_get.call(:@_assertions)
    out_write.call <<~OUT
    <error id="#{token}" assertions=#{integer_to_s.bind_call(assertions)}>
    #{array_pack.bind_call([marshal_dump.call($!)], 'm0')}
    </error id="#{token}">
    OUT
  }
  if defined?(Test::Unit::Runner)
    Test::Unit::Runner.class_variable_set(:@@stop_auto_run, true)
  elsif defined?(Test::Unit::AutoRunner)
    Test::Unit::AutoRunner.need_auto_run = false
  end
end

#syntax_check(code, fname, line) ⇒ Object 



149
150
151
152
153
154
155
 
# File 'lib/core_assertions.rb', line 149

def syntax_check(code, fname, line)
  code = code.dup.force_encoding(Encoding::UTF_8)
  RubyVM::InstructionSequence.compile(code, fname, fname, line)
  :ok
ensure
  raise if SyntaxError === $!
end