Class: RSpec::Core::Configuration

Inherits:
Object
  • Object
show all
Defined in:
lib/rspec-gc-control/configuration.rb

Overview

Extensions to RSpec::Core::Configuration to allow configuration of desired GC behavior.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Configuration

Overridden constructor to initialize ‘gc_every_n_examples` to 0. This disables the explicit GC control.



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# File 'lib/rspec-gc-control/configuration.rb', line 16

def initialize
  initialize_without_gc
  @gc_every_n_examples = 0
end

Instance Method Details

#gc_every_n_examples=(n) ⇒ Object

If set to a value above 0, turns automatic GC off and runs it only every N tests, which can result in higher peak memory usage but lower total execution time.



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# File 'lib/rspec-gc-control/configuration.rb', line 43

def gc_every_n_examples=(n)
  if(defined?(JRuby))
    warn "Ignoring gc_every_n_examples because JRuby doesn't support GC control."
    return
  end
  if(!GC.respond_to?(:count))
    warn "Ignoring gc_every_n_examples because this Ruby implementation doesn't implement GC.count."
    return
  end
  @gc_every_n_examples = n
  if(@gc_every_n_examples > 0)
    GC.disable
  else
    GC.enable
  end
end

#gc_if_needed ⇒ Object 



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# File 'lib/rspec-gc-control/configuration.rb', line 22

def gc_if_needed
  gc_time = 0
  if(@gc_every_n_examples > 0)
    @test_counter = -1 if(!defined?(@test_counter))
    @test_counter += 1
    if(@test_counter >= (@gc_every_n_examples - 1))
      t_before = Time.now
      GC.enable
      GC.start
      GC.disable
      gc_time = Time.now - t_before

      @test_counter = 0
    end
  end
  return gc_time
end

#initialize_without_gc ⇒ Object 



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# File 'lib/rspec-gc-control/configuration.rb', line 12

alias_method :initialize_without_gc, :initialize