Module: SimpleCov::Configuration

Included 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 collapse

SUPPORTED_COVERAGE_CRITERIA = 
%i[line branch].freeze
DEFAULT_COVERAGE_CRITERION = 
:line

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#filters ⇒ Object

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



73
74
75
 
# File 'lib/simplecov/configuration.rb', line 73

def filters
  @filters ||= []
end

#formatter(formatter = nil) ⇒ Object

Gets or sets the configured formatter.

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



97
98
99
100
101
102
103
104
 
# 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

#groups ⇒ Object

Returns the configured groups. Add groups using SimpleCov.add_group



149
150
151
 
# File 'lib/simplecov/configuration.rb', line 149

def groups
  @groups ||= {}
end

#print_error_status ⇒ Object

Whether we should print non-success status codes. This can be configured with the #print_error_status= method.



128
129
130
 
# File 'lib/simplecov/configuration.rb', line 128

def print_error_status
  defined?(@print_error_status) ? @print_error_status : true
end

Instance Method Details

#adapters ⇒ Object 



160
161
162
163
 
# 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) ⇒ Object

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 sorce 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 SimpleCov::Filter. See the documentation there on how to define your own filter classes



350
351
352
 
# File 'lib/simplecov/configuration.rb', line 350

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) ⇒ Object

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).



359
360
361
 
# File 'lib/simplecov/configuration.rb', line 359

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

#at_exit(&block) ⇒ Object

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



192
193
194
195
196
197
 
# File 'lib/simplecov/configuration.rb', line 192

def at_exit(&block)
  return proc {} unless running || block_given?

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

#at_fork(&block) ⇒ Object

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



231
232
233
234
235
236
237
238
239
240
241
242
243
 
# File 'lib/simplecov/configuration.rb', line 231

def at_fork(&block)
  @at_fork = block if block_given?
  @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

#branch_coverage? ⇒ Boolean

Returns:

  • (Boolean) 


402
403
404
 
# File 'lib/simplecov/configuration.rb', line 402

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

#clear_coverage_criteria ⇒ Object 



398
399
400
 
# File 'lib/simplecov/configuration.rb', line 398

def clear_coverage_criteria
  @coverage_criteria = nil
end

#command_name(name = nil) ⇒ Object

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



86
87
88
89
90
 
# 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) ⇒ Object

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.



176
177
178
 
# File 'lib/simplecov/configuration.rb', line 176

def configure(&block)
  Docile.dsl_eval(self, &block)
end

#coverage_criteria ⇒ Object 



390
391
392
 
# File 'lib/simplecov/configuration.rb', line 390

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

#coverage_criterion(criterion = nil) ⇒ Object

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) 


376
377
378
379
380
381
382
 
# File 'lib/simplecov/configuration.rb', line 376

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

  raise_if_criterion_unsupported(criterion)

  @coverage_criterion = criterion
end

#coverage_criterion_enabled?(criterion) ⇒ Boolean

Returns:

  • (Boolean) 


394
395
396
 
# File 'lib/simplecov/configuration.rb', line 394

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

#coverage_dir(dir = nil) ⇒ Object

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

Configure with SimpleCov.coverage_dir(‘cov’)



33
34
35
36
37
38
 
# 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 ⇒ Object

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



45
46
47
48
49
50
51
 
# 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

#coverage_start_arguments_supported? ⇒ Boolean Also known as: branch_coverage_supported?

Returns:

  • (Boolean) 


406
407
408
409
410
411
412
413
414
415
 
# File 'lib/simplecov/configuration.rb', line 406

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

#enable_coverage(criterion) ⇒ Object 



384
385
386
387
388
 
# File 'lib/simplecov/configuration.rb', line 384

def enable_coverage(criterion)
  raise_if_criterion_unsupported(criterion)

  coverage_criteria << criterion
end

#enable_for_subprocesses(value = nil) ⇒ Object

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



201
202
203
204
 
# File 'lib/simplecov/configuration.rb', line 201

def enable_for_subprocesses(value = nil)
  @enable_for_subprocesses = value unless value.nil?
  @enable_for_subprocesses || false
end

#enabled_for_subprocesses? ⇒ Boolean

gets the enabled_for_subprocess configuration

Returns:

  • (Boolean) 


207
208
209
 
# File 'lib/simplecov/configuration.rb', line 207

def enabled_for_subprocesses?
  enable_for_subprocesses
end

#formatters ⇒ Object

Gets the configured formatters.



116
117
118
119
120
121
122
 
# 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) ⇒ Object

Sets the configured formatters.



109
110
111
 
# File 'lib/simplecov/configuration.rb', line 109

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

#maximum_coverage_drop(coverage_drop = nil) ⇒ Object

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)



309
310
311
 
# File 'lib/simplecov/configuration.rb', line 309

def maximum_coverage_drop(coverage_drop = nil)
  @maximum_coverage_drop ||= (coverage_drop || 100).to_f.round(2)
end

#merge_timeout(seconds = nil) ⇒ Object

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



277
278
279
280
 
# File 'lib/simplecov/configuration.rb', line 277

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

#minimum_coverage(coverage = nil) ⇒ Object

rubocop:disable Metrics/CyclomaticComplexity



290
291
292
293
294
295
296
297
298
299
300
 
# File 'lib/simplecov/configuration.rb', line 290

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

  coverage = {DEFAULT_COVERAGE_CRITERION => coverage} if coverage.is_a?(Numeric)
  coverage.each_key { |criterion| raise_if_criterion_disabled(criterion) }
  coverage.each_value do |percent|
    minimum_possible_coverage_exceeded("minimum_coverage") if percent && percent > 100
  end

  @minimum_coverage = coverage
end

#minimum_coverage_by_file(coverage = nil) ⇒ Object

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)



320
321
322
323
 
# File 'lib/simplecov/configuration.rb', line 320

def minimum_coverage_by_file(coverage = nil)
  minimum_possible_coverage_exceeded("minimum_coverage_by_file") if coverage && coverage > 100
  @minimum_coverage_by_file ||= (coverage || 0).to_f.round(2)
end

#nocov_token(nocov_token = nil) ⇒ Object 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’)



139
140
141
142
143
 
# 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

#profiles ⇒ Object

Returns the hash of available profiles



156
157
158
 
# File 'lib/simplecov/configuration.rb', line 156

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

#project_name(new_name = nil) ⇒ Object

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



249
250
251
252
253
254
 
# File 'lib/simplecov/configuration.rb', line 249

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

#refuse_coverage_drop ⇒ Object

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



329
330
331
 
# File 'lib/simplecov/configuration.rb', line 329

def refuse_coverage_drop
  maximum_coverage_drop 0
end

#root(root = nil) ⇒ Object

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

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



22
23
24
25
26
 
# File 'lib/simplecov/configuration.rb', line 22

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

  @root = File.expand_path(root || Dir.getwd)
end

#track_files(glob) ⇒ Object

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.



58
59
60
 
# File 'lib/simplecov/configuration.rb', line 58

def track_files(glob)
  @tracked_files = glob
end

#tracked_files ⇒ Object

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



66
67
68
 
# File 'lib/simplecov/configuration.rb', line 66

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

#use_merging(use = nil) ⇒ Object

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



260
261
262
263
 
# File 'lib/simplecov/configuration.rb', line 260

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