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Module: SimpleCov::Configuration

Relationships & Source Files
Extension / Inclusion / Inheritance Descendants
Extended In:
::SimpleCov
Defined in: lib/simplecov/configuration.rb

Overview

Bundles the configuration options used for ::SimpleCov. All methods defined here are usable from ::SimpleCov directly. Please check out ::SimpleCov documentation for further info.

Constant Summary

Instance Attribute Summary

Instance Method Summary

Instance Attribute Details

#branch_coverage? ⇒ Boolean (readonly)

[ GitHub ] 

  


# File 'lib/simplecov/configuration.rb', line 460



def branch_coverage?
  branch_coverage_supported? && coverage_criterion_enabled?(:branch)
end


  








  

    #branch_coverage_supported?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 475



def branch_coverage_supported?
  coverage_start_arguments_supported? && RUBY_ENGINE != "jruby"
end


  








  

    #coverage_for_eval_enabled?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 492



def coverage_for_eval_enabled?
  @coverage_for_eval_enabled ||= false
end


  








  

    #coverage_for_eval_supported?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 487



def coverage_for_eval_supported?
  require "coverage"
  defined?(Coverage.supported?) && Coverage.supported?(:eval)
end


  








  

    #coverage_start_arguments_supported?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 464



def coverage_start_arguments_supported?
  # safe to cache as within one process this value should never
  # change
  return @coverage_start_arguments_supported if defined?(@coverage_start_arguments_supported)

  @coverage_start_arguments_supported = begin
    require "coverage"
    !Coverage.method(:start).arity.zero?
  end
end


  








  

    #enabled_for_subprocesses?  ⇒ Boolean  (readonly)
  



  

    

gets the enabled_for_subprocess configuration


  





  


  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 218



def enabled_for_subprocesses?
  enable_for_subprocesses
end


  








  

    #filters   (rw)
  



  

    

Returns the list of configured filters. Add filters using SimpleCov.add_filter.


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 73



def filters
  @filters ||= []
end


  








  

    #filters=(value)   (rw)
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 13



attr_writer :filters, :groups, :formatter, :print_error_status


  








  

    #formatter(formatter = nil)   (rw)
  



  

    

Gets or sets the configured formatter.



Configure with: SimpleCov.formatter(SimpleCov::Formatter::SimpleFormatter)


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 97



def formatter(formatter = nil)
  return @formatter if defined?(@formatter) && formatter.nil?

  @formatter = formatter
  raise "No formatter configured. Please specify a formatter using SimpleCov.formatter = SimpleCov::Formatter::SimpleFormatter" unless @formatter

  @formatter
end


  








  

    #formatter=(value)   (rw)
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 13



attr_writer :filters, :groups, :formatter, :print_error_status


  








  

    #formatters   (rw)
  



  

    

Gets the configured formatters.


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 116



def formatters
  if @formatter.is_a?(SimpleCov::Formatter::MultiFormatter)
    @formatter.formatters
  else
    Array(formatter)
  end
end


  








  

    #formatters=(formatters)   (rw)
  



  

    

Sets the configured formatters.


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 109



def formatters=(formatters)
  @formatter = SimpleCov::Formatter::MultiFormatter.new(formatters)
end


  








  

    #groups   (rw)
  



  

    

Returns the configured groups. Add groups using SimpleCov.add_group


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 149



def groups
  @groups ||= {}
end


  








  

    #groups=(value)   (rw)
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 13



attr_writer :filters, :groups, :formatter, :print_error_status


  








  

    #method_coverage?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 479



def method_coverage?
  method_coverage_supported? && coverage_criterion_enabled?(:method)
end


  








  

    #method_coverage_supported?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 483



def method_coverage_supported?
  coverage_start_arguments_supported? && RUBY_ENGINE != "jruby"
end


  











Instance Method Details



  

    #adapters  
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 160



def adapters
  warn "#{Kernel.caller.first}: [DEPRECATION] #adapters is deprecated. Use #profiles instead."
  profiles
end


  








  

    #add_filter(filter_argument = nil, &filter_proc)  
  



  

    

Add a filter to the processing chain. There are four ways to define a filter:


  • 

    as a String that will then be matched against all source files’ file paths,
    


    SimpleCov.add_filter 'app/models' # will reject all your models
    

  • 

    as a block which will be passed the source file in question and should either return a true or false value, depending on whether the file should be removed
    


    SimpleCov.add_filter do |src_file|
  File.basename(src_file.filename) == 'environment.rb'
end # Will exclude environment.rb files from the results
    

  • 

    as an array of strings that are matched against all source files’ file paths and then ignored (basically string filter multiple times)
    


    SimpleCov.add_filter ['app/models', 'app/helpers'] # ignores both dirs
    

  • 

    as an instance of a subclass of Filter. See the documentation there on how to define your own filter classes
    



  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 395



def add_filter(filter_argument = nil, &filter_proc)
  filters << parse_filter(filter_argument, &filter_proc)
end


  








  

    #add_group(group_name, filter_argument = nil, &filter_proc)  
  



  

    

Define a group for files. Works similar to add_filter, only that the first argument is the desired group name and files PASSING the filter end up in the group (while filters exclude when the filter is applicable).


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 404



def add_group(group_name, filter_argument = nil, &filter_proc)
  groups[group_name] = parse_filter(filter_argument, &filter_proc)
end


  








  

    #at_exit(&block)  
  



  

    

Gets or sets the behavior to process coverage results.



By default, it will call SimpleCov.result.format!



Configure with:



SimpleCov.at_exit do
  puts "Coverage done"
  SimpleCov.result.format!
end


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 202



def at_exit(&block)
  return Proc.new unless running || block

  @at_exit = block if block
  @at_exit ||= proc { SimpleCov.result.format! }
end


  








  

    #at_fork(&block)  
  



  

    

Gets or sets the behavior to start a new forked ::Process.



By default, it will add “ (Process #SimpleCov.pid)” to the command_name, and start ::SimpleCov in quiet mode



Configure with:



SimpleCov.at_fork do |pid|
  SimpleCov.start do
    # This needs a unique name so it won't be ovewritten
    SimpleCov.command_name "#{SimpleCov.command_name} (subprocess: #{pid})"
    # be quiet, the parent process will be in charge of using the regular formatter and checking coverage totals
    SimpleCov.print_error_status = false
    SimpleCov.formatter SimpleCov::Formatter::SimpleFormatter
    SimpleCov.minimum_coverage 0
    # start
    SimpleCov.start
  end
end


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 242



def at_fork(&block)
  @at_fork = block if block
  @at_fork ||= lambda { |pid|
    # This needs a unique name so it won't be ovewritten
    SimpleCov.command_name "#{SimpleCov.command_name} (subprocess: #{pid})"
    # be quiet, the parent process will be in charge of using the regular formatter and checking coverage totals
    SimpleCov.print_error_status = false
    SimpleCov.formatter SimpleCov::Formatter::SimpleFormatter
    SimpleCov.minimum_coverage 0
    # start
    SimpleCov.start
  }
end


  








  

    #clear_coverage_criteria  
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 456



def clear_coverage_criteria
  @coverage_criteria = nil
end


  








  

    #command_name(name = nil)  
  



  

    

The name of the command (a.k.a. Test Suite) currently running. Used for result merging and caching. It first tries to make a guess based upon the command line arguments the current test suite is running on and should automatically detect unit tests, functional tests, integration tests, rpsec and cucumber and label them properly. If it fails to recognize the current command, the command name is set to the shell command that the current suite is running on.



You can specify it manually with SimpleCov.command_name(“test:units”) - please also check out the corresponding section in README.rdoc


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 86



def command_name(name = nil)
  @name = name unless name.nil?
  @name ||= SimpleCov::CommandGuesser.guess
  @name
end


  








  

    #configure(&block)  
  



  

    

Allows you to configure simplecov in a block instead of prepending ::SimpleCov to all config methods you’re calling.



SimpleCov.configure do
  add_filter 'foobar'
end



This is equivalent to SimpleCov.add_filter ‘foobar’ and thus makes it easier to set a bunch of configure options at once.


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 176



def configure(&block)
  block_context = block.binding.receiver

  # If the block was defined in our own context, instance_exec is sufficient
  return instance_exec(&block) if equal?(block_context)

  # Copy the caller's instance variables in so that references like @filter
  # inside the block resolve to the caller's values, not ours.
  saved = swap_ivars_from(block_context)
  instance_exec(&block)
ensure
  restore_ivars(block_context, saved) if defined?(saved) && saved
end


  








  

    #coverage_criteria  
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 448



def coverage_criteria
  @coverage_criteria ||= Set[primary_coverage]
end


  








  

    #coverage_criterion(criterion = nil)  
  



  

    

Define which coverage criterion should be evaluated.



Possible coverage criteria:


  • 

    :line - coverage based on lines aka has this line been executed?
    

  • 

    :branch - coverage based on branches aka has this branch (think conditions) been executed?
    




If not set the default is :line


  





  
Parameters:


    
  
  • 
    criterion
    (Symbol)
    (defaults to: nil)
  
    • 





  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 422



def coverage_criterion(criterion = nil)
  return @coverage_criterion ||= primary_coverage unless criterion

  raise_if_criterion_unsupported(criterion)

  @coverage_criterion = criterion
end


  








  

    #coverage_criterion_enabled?(criterion)  ⇒ Boolean 
  



  

    
  





  


  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 452



def coverage_criterion_enabled?(criterion)
  coverage_criteria.member?(criterion)
end


  








  

    #coverage_dir(dir = nil)  
  



  

    

The name of the output and cache directory. Defaults to ‘coverage’



Configure with SimpleCov.coverage_dir(‘cov’)


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 33



def coverage_dir(dir = nil)
  return @coverage_dir if defined?(@coverage_dir) && dir.nil?

  @coverage_path = nil # invalidate cache
  @coverage_dir = dir || "coverage"
end


  








  

    #coverage_path  
  



  

    

Returns the full path to the output directory using SimpleCov.root and SimpleCov.coverage_dir, so you can adjust this by configuring those values. Will create the directory if it’s missing


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 45



def coverage_path
  @coverage_path ||= begin
    coverage_path = File.expand_path(coverage_dir, root)
    FileUtils.mkdir_p coverage_path
    coverage_path
  end
end


  








  

    #enable_coverage(criterion)  
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 430



def enable_coverage(criterion)
  raise_if_criterion_unsupported(criterion)

  # :oneshot_lines can not be combined with :lines
  coverage_criteria.delete(DEFAULT_COVERAGE_CRITERION) if criterion == ONESHOT_LINE_COVERAGE_CRITERION

  coverage_criteria << criterion
end


  








  

    #enable_coverage_for_eval  
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 496



def enable_coverage_for_eval
  if coverage_for_eval_supported?
    @coverage_for_eval_enabled = true
  else
    warn "Coverage for eval is not available; Use Ruby 3.2.0 or later"
  end
end


  








  

    #enable_for_subprocesses(value = nil)  
  



  

    

gets or sets the enabled_for_subprocess configuration when true, this will inject ::SimpleCov code into Process.fork


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 211



def enable_for_subprocesses(value = nil)
  return @enable_for_subprocesses if defined?(@enable_for_subprocesses) && value.nil?

  @enable_for_subprocesses = value || false
end


  








  

    #maximum_coverage_drop(coverage_drop = nil)  
  



  

    

Defines the maximum coverage drop at once allowed for the testsuite to pass. ::SimpleCov will return non-zero if the coverage decreases by more than this threshold.



Default is 100% (disabled)


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 322



def maximum_coverage_drop(coverage_drop = nil)
  return @maximum_coverage_drop ||= {} unless coverage_drop

  coverage_drop = {primary_coverage => coverage_drop} if coverage_drop.is_a?(Numeric)

  raise_on_invalid_coverage(coverage_drop, "maximum_coverage_drop")

  @maximum_coverage_drop = coverage_drop
end


  








  

    #merge_timeout(seconds = nil)  
  



  

    

Defines the maximum age (in seconds) of a resultset to still be included in merged results. i.e. If you run cucumber features, then later rake test, if the stored cucumber resultset is more seconds ago than specified here, it won’t be taken into account when merging (and is also purged from the resultset cache)



Of course, this only applies when merging is active (e.g. SimpleCov.use_merging is not false!)



Default is 600 seconds (10 minutes)



Configure with SimpleCov.merge_timeout(3600) # 1hr


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 288



def merge_timeout(seconds = nil)
  @merge_timeout = seconds if seconds.is_a?(Integer)
  @merge_timeout ||= 600
end


  








  

    #minimum_coverage(coverage = nil)  
  



  

    

Defines the minimum overall coverage required for the testsuite to pass. ::SimpleCov will return non-zero if the current coverage is below this threshold.



Default is 0% (disabled)


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 299



def minimum_coverage(coverage = nil)
  return @minimum_coverage ||= {} unless coverage

  coverage = {primary_coverage => coverage} if coverage.is_a?(Numeric)

  raise_on_invalid_coverage(coverage, "minimum_coverage")

  @minimum_coverage = coverage
end


  








  

    #minimum_coverage_by_file(coverage = nil)  
  



  

    

Defines the minimum coverage per file required for the testsuite to pass. ::SimpleCov will return non-zero if the current coverage of the least covered file is below this threshold.



Default is 0% (disabled)


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 339



def minimum_coverage_by_file(coverage = nil)
  return @minimum_coverage_by_file ||= {} unless coverage

  coverage = {primary_coverage => coverage} if coverage.is_a?(Numeric)

  raise_on_invalid_coverage(coverage, "minimum_coverage_by_file")

  @minimum_coverage_by_file = coverage
end


  








  

    #minimum_coverage_by_group(coverage = nil)  
  



  

    

Defines the minimum coverage per group required for the testsuite to pass. ::SimpleCov will return non-zero if the current coverage of the least covered group is below this threshold.



Default is 0% (disabled)


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 356



def minimum_coverage_by_group(coverage = nil)
  return @minimum_coverage_by_group ||= {} unless coverage

  @minimum_coverage_by_group = coverage.dup.transform_values do |group_coverage|
    group_coverage = {primary_coverage => group_coverage} if group_coverage.is_a?(Numeric)

    raise_on_invalid_coverage(group_coverage, "minimum_coverage_by_group")

    group_coverage
  end
end


  








  

    #minimum_possible_coverage_exceeded(coverage_option)   (private)
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 523



def minimum_possible_coverage_exceeded(coverage_option)
  warn "The coverage you set for #{coverage_option} is greater than 100%"
end


  








  

    #nocov_token(nocov_token = nil)  
    Also known as: #skip_token
  



  

    

Certain code blocks (i.e. Ruby-implementation specific code) can be excluded from the coverage metrics by wrapping it inside # :nocov: comment blocks. The nocov token can be configured to be any other string using this.



Configure with SimpleCov.nocov_token(‘skip’) or it’s alias SimpleCov.skip_token(‘skip’)


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 139



def nocov_token(nocov_token = nil)
  return @nocov_token if defined?(@nocov_token) && nocov_token.nil?

  @nocov_token = nocov_token || "nocov"
end


  








  

    #parse_filter(filter_argument = nil, &filter_proc)   (private)
  



  

    

The actual filter processor. Not meant for direct use


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 550



def parse_filter(filter_argument = nil, &filter_proc)
  filter = filter_argument || filter_proc

  if filter
    SimpleCov::Filter.build_filter(filter)
  else
    raise ArgumentError, "Please specify either a filter or a block to filter with"
  end
end


  








  

    #primary_coverage(criterion = nil)  
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 439



def primary_coverage(criterion = nil)
  if criterion.nil?
    @primary_coverage ||= DEFAULT_COVERAGE_CRITERION
  else
    raise_if_criterion_disabled(criterion)
    @primary_coverage = criterion
  end
end


  








  

    #profiles  
  



  

    

Returns the hash of available profiles


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 156



def profiles
  @profiles ||= SimpleCov::Profiles.new
end


  








  

    #project_name(new_name = nil)  
  



  

    

Returns the project name - currently assuming the last dirname in the SimpleCov.root is this.


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 260



def project_name(new_name = nil)
  return @project_name if defined?(@project_name) && @project_name && new_name.nil?

  @project_name = new_name if new_name.is_a?(String)
  @project_name ||= File.basename(root.split("/").last).capitalize.tr("_", " ")
end


  








  

    #raise_if_criterion_disabled(criterion)   (private)
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 506



def raise_if_criterion_disabled(criterion)
  raise_if_criterion_unsupported(criterion)
  # rubocop:disable Style/IfUnlessModifier
  unless coverage_criterion_enabled?(criterion)
    raise "Coverage criterion #{criterion}, is disabled! Please enable it first through enable_coverage #{criterion} (if supported)"
  end
  # rubocop:enable Style/IfUnlessModifier
end


  








  

    #raise_if_criterion_unsupported(criterion)   (private)
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 515



def raise_if_criterion_unsupported(criterion)
  # rubocop:disable Style/IfUnlessModifier
  unless SUPPORTED_COVERAGE_CRITERIA.member?(criterion)
    raise "Unsupported coverage criterion #{criterion}, supported values are #{SUPPORTED_COVERAGE_CRITERIA}"
  end
  # rubocop:enable Style/IfUnlessModifier
end


  








  

    #raise_on_invalid_coverage(coverage, coverage_setting)  
  

  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 309



def raise_on_invalid_coverage(coverage, coverage_setting)
  coverage.each_key { |criterion| raise_if_criterion_disabled(criterion) }
  coverage.each_value do |percent|
    minimum_possible_coverage_exceeded(coverage_setting) if percent && percent > 100
  end
end


  








  

    #refuse_coverage_drop(*criteria)  
  



  

    

Refuses any coverage drop. That is, coverage is only allowed to increase. ::SimpleCov will return non-zero if the coverage decreases.


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 372



def refuse_coverage_drop(*criteria)
  criteria = coverage_criteria if criteria.empty?

  maximum_coverage_drop(criteria.to_h { |c| [c, 0] })
end


  








  

    #restore_ivars(block_context, saved)   (private)
  



  

    

Copy instance variables back to block_context and restore our saved values.


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 540



def restore_ivars(block_context, saved)
  block_context.instance_variables.each do |ivar|
    block_context.instance_variable_set(ivar, instance_variable_get(ivar))
  end
  saved.each { |ivar, value| instance_variable_set(ivar, value) }
end


  








  

    #root(root = nil)  
  



  

    

The root for the project. This defaults to the current working directory.



Configure with SimpleCov.root(‘/my/project/path’)


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 21



def root(root = nil)
  return @root if defined?(@root) && root.nil?

  @coverage_path = nil # invalidate cache
  @root = File.expand_path(root || Dir.getwd)
end


  








  

    #skip_token(nocov_token = nil)  
  



  

    

Alias for #nocov_token.


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 144



alias skip_token nocov_token


  








  

    #swap_ivars_from(block_context)   (private)
  



  

    

Copy instance variables from block_context into self, saving any of ours that would be clobbered. Returns the saved values for later restoration.


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 529



def swap_ivars_from(block_context)
  saved = {}
  our_ivars = instance_variables
  block_context.instance_variables.each do |ivar|
    saved[ivar] = instance_variable_get(ivar) if our_ivars.include?(ivar)
    instance_variable_set(ivar, block_context.instance_variable_get(ivar))
  end
  saved
end


  








  

    #track_files(glob)  
  



  

    

Coverage results will always include files matched by this glob, whether or not they were explicitly required. Without this, un-required files will not be present in the final report.


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 58



def track_files(glob)
  @tracked_files = glob
end


  








  

    #tracked_files  
  



  

    

Returns the glob that will be used to include files that were not explicitly required.


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 66



def tracked_files
  @tracked_files if defined?(@tracked_files)
end


  








  

    #use_merging(use = nil)  
  



  

    

Defines whether to use result merging so all your test suites (test:units, test:functionals, cucumber, …) are joined and combined into a single coverage report


  



  [ GitHub ]


  

  


# File 'lib/simplecov/configuration.rb', line 271



def use_merging(use = nil)
  @use_merging = use unless use.nil?
  @use_merging = true unless defined?(@use_merging) && @use_merging == false
end