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configuration.rb
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configuration.rb
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require 'fileutils'
RSpec::Support.require_rspec_core "backtrace_formatter"
RSpec::Support.require_rspec_core "ruby_project"
RSpec::Support.require_rspec_core "formatters/deprecation_formatter"
module RSpec
module Core
# Stores runtime configuration information.
#
# Configuration options are loaded from `~/.rspec`, `.rspec`,
# `.rspec-local`, command line switches, and the `SPEC_OPTS` environment
# variable (listed in lowest to highest precedence; for example, an option
# in `~/.rspec` can be overridden by an option in `.rspec-local`).
#
# @example Standard settings
# RSpec.configure do |c|
# c.drb = true
# c.drb_port = 1234
# c.default_path = 'behavior'
# end
#
# @example Hooks
# RSpec.configure do |c|
# c.before(:suite) { establish_connection }
# c.before(:example) { log_in_as :authorized }
# c.around(:example) { |ex| Database.transaction(&ex) }
# end
#
# @see RSpec.configure
# @see Hooks
class Configuration
include RSpec::Core::Hooks
# @private
class MustBeConfiguredBeforeExampleGroupsError < StandardError; end
# @private
def self.define_reader(name)
define_method(name) do
variable = instance_variable_defined?("@#{name}") ? instance_variable_get("@#{name}") : nil
value_for(name, variable)
end
end
# @private
def self.define_aliases(name, alias_name)
alias_method alias_name, name
alias_method "#{alias_name}=", "#{name}="
define_predicate_for alias_name
end
# @private
def self.define_predicate_for(*names)
names.each {|name| alias_method "#{name}?", name}
end
# @private
#
# Invoked by the `add_setting` instance method. Use that method on a
# `Configuration` instance rather than this class method.
def self.add_setting(name, opts={})
raise "Use the instance add_setting method if you want to set a default" if opts.has_key?(:default)
attr_writer name
add_read_only_setting name
Array(opts[:alias_with]).each do |alias_name|
define_aliases(name, alias_name)
end
end
# @private
#
# As `add_setting` but only add the reader
def self.add_read_only_setting(name, opts={})
raise "Use the instance add_setting method if you want to set a default" if opts.has_key?(:default)
define_reader name
define_predicate_for name
end
# @macro [attach] add_setting
# @!attribute [rw] $1
# @!method $1=(value)
#
# @macro [attach] define_reader
# @!attribute [r] $1
# @macro add_setting
# Path to use if no path is provided to the `rspec` command (default:
# `"spec"`). Allows you to just type `rspec` instead of `rspec spec` to
# run all the examples in the `spec` directory.
add_setting :default_path
# @macro add_setting
# Run examples over DRb (default: `false`). RSpec doesn't supply the DRb
# server, but you can use tools like spork.
add_setting :drb
# @macro add_setting
# The drb_port (default: nil).
add_setting :drb_port
# @macro add_setting
# Default: `$stderr`.
add_setting :error_stream
# Indicates if the DSL has been exposed off of modules and `main`.
# Default: true
def expose_dsl_globally?
Core::DSL.exposed_globally?
end
# Use this to expose the core RSpec DSL via `Module` and the `main`
# object. It will be set automatically but you can override it to
# remove the DSL.
# Default: true
def expose_dsl_globally=(value)
if value
Core::DSL.expose_globally!
Core::SharedExampleGroup::TopLevelDSL.expose_globally!
else
Core::DSL.remove_globally!
Core::SharedExampleGroup::TopLevelDSL.remove_globally!
end
end
# Determines where deprecation warnings are printed.
# Defaults to `$stderr`.
# @return [IO, String] IO to write to or filename to write to
define_reader :deprecation_stream
# Determines where deprecation warnings are printed.
# @param value [IO, String] IO to write to or filename to write to
def deprecation_stream=(value)
if @reporter && !value.equal?(@deprecation_stream)
warn "RSpec's reporter has already been initialized with " +
"#{deprecation_stream.inspect} as the deprecation stream, so your change to "+
"`deprecation_stream` will be ignored. You should configure it earlier for " +
"it to take effect, or use the `--deprecation-out` CLI option. " +
"(Called from #{CallerFilter.first_non_rspec_line})"
else
@deprecation_stream = value
end
end
# @macro add_setting
# Clean up and exit after the first failure (default: `false`).
add_setting :fail_fast
# @macro add_setting
# Prints the formatter output of your suite without running any
# examples or hooks.
add_setting :dry_run
# @macro add_setting
# The exit code to return if there are any failures (default: 1).
add_setting :failure_exit_code
# @macro define_reader
# Indicates files configured to be required
define_reader :requires
# @macro define_reader
# Returns dirs that have been prepended to the load path by the `-I` command line option
define_reader :libs
# @macro add_setting
# Determines where RSpec will send its output.
# Default: `$stdout`.
define_reader :output_stream
# Set the output stream for reporter
# @attr value [IO] value for output, defaults to $stdout
def output_stream=(value)
if @reporter && !value.equal?(@output_stream)
warn "RSpec's reporter has already been initialized with " +
"#{output_stream.inspect} as the output stream, so your change to "+
"`output_stream` will be ignored. You should configure it earlier for " +
"it to take effect. (Called from #{CallerFilter.first_non_rspec_line})"
else
@output_stream = value
end
end
# @macro define_reader
# Load files matching this pattern (default: `'**/*_spec.rb'`)
define_reader :pattern
# Set pattern to match files to load
# @attr value [String] the filename pattern to filter spec files by
def pattern=(value)
if @spec_files_loaded
RSpec.warning "Configuring `pattern` to #{value} has no effect since RSpec has already loaded the spec files."
end
@pattern = value
@files_to_run = nil
end
# @macro add_setting
# Report the times for the slowest examples (default: `false`).
# Use this to specify the number of examples to include in the profile.
add_setting :profile_examples
# @macro add_setting
# Run all examples if none match the configured filters (default: `false`).
add_setting :run_all_when_everything_filtered
# @macro add_setting
# Color to use to indicate success.
# @param color [Symbol] defaults to `:green` but can be set to one of the
# following: `[:black, :white, :red, :green, :yellow,
# :blue, :magenta, :cyan]`
add_setting :success_color
# @macro add_setting
# Color to use to print pending examples.
# @param color [Symbol] defaults to `:yellow` but can be set to one of the
# following: `[:black, :white, :red, :green, :yellow,
# :blue, :magenta, :cyan]`
add_setting :pending_color
# @macro add_setting
# Color to use to indicate failure.
# @param color [Symbol] defaults to `:red` but can be set to one of the
# following: `[:black, :white, :red, :green, :yellow,
# :blue, :magenta, :cyan]`
add_setting :failure_color
# @macro add_setting
# The default output color.
# @param color [Symbol] defaults to `:white` but can be set to one of the
# following:`[:black, :white, :red, :green, :yellow,
# :blue, :magenta, :cyan]`
add_setting :default_color
# @macro add_setting
# Color used when a pending example is fixed.
# @param color [Symbol] defaults to `:blue` but can be set to one of the
# following: `[:black, :white, :red, :green, :yellow,
# :blue, :magenta, :cyan]`
add_setting :fixed_color
# @macro add_setting
# Color used to print details.
# @param color [Symbol] defaults to `:cyan` but can be set to one of the
# following: `[:black, :white, :red, :green, :yellow,
# :blue, :magenta, :cyan]`
add_setting :detail_color
# Deprecated. This config option was added in RSpec 2 to pave the way
# for this being the default behavior in RSpec 3. Now this option is
# a no-op.
def treat_symbols_as_metadata_keys_with_true_values=(value)
RSpec.deprecate("RSpec::Core::Configuration#treat_symbols_as_metadata_keys_with_true_values=",
:message => "RSpec::Core::Configuration#treat_symbols_as_metadata_keys_with_true_values= " +
"is deprecated, it is now set to true as default and setting it to false has no effect.")
end
# Record the start time of the spec suite to measure load time
add_setting :start_time
# @private
add_setting :tty
# @private
add_setting :include_or_extend_modules
# @private
attr_writer :files_to_run
# @private
add_setting :expecting_with_rspec
# @private
attr_accessor :filter_manager
# @private
attr_reader :backtrace_formatter, :ordering_manager
def initialize
@start_time = $_rspec_core_load_started_at || ::RSpec::Core::Time.now
@expectation_frameworks = []
@include_or_extend_modules = []
@mock_framework = nil
@files_or_directories_to_run = []
@color = false
@pattern = '**/*_spec.rb'
@failure_exit_code = 1
@spec_files_loaded = false
@backtrace_formatter = BacktraceFormatter.new
@default_path = 'spec'
@deprecation_stream = $stderr
@output_stream = $stdout
@reporter = nil
@reporter_buffer = nil
@filter_manager = FilterManager.new
@ordering_manager = Ordering::ConfigurationManager.new
@preferred_options = {}
@failure_color = :red
@success_color = :green
@pending_color = :yellow
@default_color = :white
@fixed_color = :blue
@detail_color = :cyan
@profile_examples = false
@requires = []
@libs = []
@derived_metadata_blocks = []
end
# @private
#
# Used to set higher priority option values from the command line.
def force(hash)
ordering_manager.force(hash)
@preferred_options.merge!(hash)
end
# @private
def reset
@spec_files_loaded = false
@reporter = nil
@formatter_loader = nil
end
# @overload add_setting(name)
# @overload add_setting(name, opts)
# @option opts [Symbol] :default
#
# set a default value for the generated getter and predicate methods:
#
# add_setting(:foo, :default => "default value")
#
# @option opts [Symbol] :alias_with
#
# Use `:alias_with` to alias the setter, getter, and predicate to another
# name, or names:
#
# add_setting(:foo, :alias_with => :bar)
# add_setting(:foo, :alias_with => [:bar, :baz])
#
# Adds a custom setting to the RSpec.configuration object.
#
# RSpec.configuration.add_setting :foo
#
# Used internally and by extension frameworks like rspec-rails, so they
# can add config settings that are domain specific. For example:
#
# RSpec.configure do |c|
# c.add_setting :use_transactional_fixtures,
# :default => true,
# :alias_with => :use_transactional_examples
# end
#
# `add_setting` creates three methods on the configuration object, a
# setter, a getter, and a predicate:
#
# RSpec.configuration.foo=(value)
# RSpec.configuration.foo
# RSpec.configuration.foo? # returns true if foo returns anything but nil or false
def add_setting(name, opts={})
default = opts.delete(:default)
(class << self; self; end).class_exec do
add_setting(name, opts)
end
__send__("#{name}=", default) if default
end
# Returns the configured mock framework adapter module
def mock_framework
mock_with :rspec unless @mock_framework
@mock_framework
end
# Delegates to mock_framework=(framework)
def mock_framework=(framework)
mock_with framework
end
# Regexps used to exclude lines from backtraces.
#
# Excludes lines from ruby (and jruby) source, installed gems, anything
# in any "bin" directory, and any of the rspec libs (outside gem
# installs) by default.
#
# You can modify the list via the getter, or replace it with the setter.
#
# To override this behaviour and display a full backtrace, use
# `--backtrace`on the command line, in a `.rspec` file, or in the
# `rspec_options` attribute of RSpec's rake task.
def backtrace_exclusion_patterns
@backtrace_formatter.exclusion_patterns
end
# Set regular expressions used to exclude lines in backtrace
# @param patterns [Regexp] set the backtrace exlusion pattern
def backtrace_exclusion_patterns=(patterns)
@backtrace_formatter.exclusion_patterns = patterns
end
# Regexps used to include lines in backtraces.
#
# Defaults to [Regexp.new Dir.getwd].
#
# Lines that match an exclusion _and_ an inclusion pattern
# will be included.
#
# You can modify the list via the getter, or replace it with the setter.
def backtrace_inclusion_patterns
@backtrace_formatter.inclusion_patterns
end
# Set regular expressions used to include lines in backtrace
# @attr patterns [Regexp] set backtrace_formatter inclusion_patterns
def backtrace_inclusion_patterns=(patterns)
@backtrace_formatter.inclusion_patterns = patterns
end
# @private
MOCKING_ADAPTERS = {
:rspec => :RSpec,
:flexmock => :Flexmock,
:rr => :RR,
:mocha => :Mocha,
:nothing => :Null
}
# Sets the mock framework adapter module.
#
# `framework` can be a Symbol or a Module.
#
# Given any of `:rspec`, `:mocha`, `:flexmock`, or `:rr`, configures the
# named framework.
#
# Given `:nothing`, configures no framework. Use this if you don't use
# any mocking framework to save a little bit of overhead.
#
# Given a Module, includes that module in every example group. The module
# should adhere to RSpec's mock framework adapter API:
#
# setup_mocks_for_rspec
# - called before each example
#
# verify_mocks_for_rspec
# - called after each example if the example hasn't yet failed.
# Framework should raise an exception when expectations fail
#
# teardown_mocks_for_rspec
# - called after verify_mocks_for_rspec (even if there are errors)
#
# If the module responds to `configuration` and `mock_with` receives a block,
# it will yield the configuration object to the block e.g.
#
# config.mock_with OtherMockFrameworkAdapter do |mod_config|
# mod_config.custom_setting = true
# end
def mock_with(framework)
framework_module = if framework.is_a?(Module)
framework
else
const_name = MOCKING_ADAPTERS.fetch(framework) do
raise ArgumentError,
"Unknown mocking framework: #{framework.inspect}. " +
"Pass a module or one of #{MOCKING_ADAPTERS.keys.inspect}"
end
RSpec::Support.require_rspec_core "mocking_adapters/#{const_name.to_s.downcase}"
RSpec::Core::MockingAdapters.const_get(const_name)
end
new_name, old_name = [framework_module, @mock_framework].map do |mod|
mod.respond_to?(:framework_name) ? mod.framework_name : :unnamed
end
unless new_name == old_name
assert_no_example_groups_defined(:mock_framework)
end
if block_given?
raise "#{framework_module} must respond to `configuration` so that mock_with can yield it." unless framework_module.respond_to?(:configuration)
yield framework_module.configuration
end
@mock_framework = framework_module
end
# Returns the configured expectation framework adapter module(s)
def expectation_frameworks
expect_with :rspec if @expectation_frameworks.empty?
@expectation_frameworks
end
# Delegates to expect_with(framework)
def expectation_framework=(framework)
expect_with(framework)
end
# Sets the expectation framework module(s) to be included in each example
# group.
#
# `frameworks` can be `:rspec`, `:test_unit`, `:minitest`, a custom
# module, or any combination thereof:
#
# config.expect_with :rspec
# config.expect_with :test_unit
# config.expect_with :minitest
# config.expect_with :rspec, :minitest
# config.expect_with OtherExpectationFramework
#
# RSpec will translate `:rspec`, `:minitest`, and `:test_unit` into the
# appropriate modules.
#
# ## Configuration
#
# If the module responds to `configuration`, `expect_with` will
# yield the `configuration` object if given a block:
#
# config.expect_with OtherExpectationFramework do |custom_config|
# custom_config.custom_setting = true
# end
def expect_with(*frameworks)
modules = frameworks.map do |framework|
case framework
when Module
framework
when :rspec
require 'rspec/expectations'
self.expecting_with_rspec = true
::RSpec::Matchers
when :test_unit
require 'rspec/core/test_unit_assertions_adapter'
::RSpec::Core::TestUnitAssertionsAdapter
when :minitest
require 'rspec/core/minitest_assertions_adapter'
::RSpec::Core::MinitestAssertionsAdapter
else
raise ArgumentError, "#{framework.inspect} is not supported"
end
end
if (modules - @expectation_frameworks).any?
assert_no_example_groups_defined(:expect_with)
end
if block_given?
raise "expect_with only accepts a block with a single argument. Call expect_with #{modules.length} times, once with each argument, instead." if modules.length > 1
raise "#{modules.first} must respond to `configuration` so that expect_with can yield it." unless modules.first.respond_to?(:configuration)
yield modules.first.configuration
end
@expectation_frameworks.push(*modules)
end
# Check if full backtrace is enabled
# @return [Boolean] is full backtrace enabled
def full_backtrace?
@backtrace_formatter.full_backtrace?
end
# Toggle full backtrace
# @attr true_or_false [Boolean] toggle full backtrace display
def full_backtrace=(true_or_false)
@backtrace_formatter.full_backtrace = true_or_false
end
# Returns the configuration option for color, but should not
# be used to check if color is supported.
#
# @see color_enabled?
# @return [Boolean]
def color
value_for(:color, @color)
end
# Check if color is enabled for a particular output
# @param output [IO] an output stream to use, defaults to the current
# `output_stream`
# @return [Boolean]
def color_enabled?(output = output_stream)
output_to_tty?(output) && color
end
# Toggle output color
# @attr true_or_false [Boolean] toggle color enabled
def color=(true_or_false)
if true_or_false
if RSpec.world.windows_os? and not ENV['ANSICON']
RSpec.warning "You must use ANSICON 1.31 or later (http://adoxa.3eeweb.com/ansicon/) to use colour on Windows"
@color = false
else
@color = true
end
end
end
# @private
def libs=(libs)
libs.map do |lib|
@libs.unshift lib
$LOAD_PATH.unshift lib
end
end
# Run examples matching on `description` in all files to run.
# @param description [String, Regexp] the pattern to filter on
def full_description=(description)
filter_run :full_description => Regexp.union(*Array(description).map {|d| Regexp.new(d) })
end
# @return [Array] full description filter
def full_description
filter.fetch :full_description, nil
end
# @overload add_formatter(formatter)
#
# Adds a formatter to the formatters collection. `formatter` can be a
# string representing any of the built-in formatters (see
# `built_in_formatter`), or a custom formatter class.
#
# ### Note
#
# For internal purposes, `add_formatter` also accepts the name of a class
# and paths to use for output streams, but you should consider that a
# private api that may change at any time without notice.
def add_formatter(formatter_to_use, *paths)
paths << output_stream if paths.empty?
formatter_loader.add formatter_to_use, *paths
end
alias_method :formatter=, :add_formatter
# The formatter that will be used if no formatter has been set.
# Defaults to 'progress'.
def default_formatter
formatter_loader.default_formatter
end
# Sets a fallback formatter to use if none other has been set.
#
# @example
#
# RSpec.configure do |rspec|
# rspec.default_formatter = 'doc'
# end
def default_formatter=(value)
formatter_loader.default_formatter = value
end
# Returns a duplicate of the formatters currently loaded in
# the `FormatterLoader` for introspection.
#
# Note as this is a duplicate, any mutations will be disregarded.
#
# @return [Array] the formatters currently loaded
def formatters
formatter_loader.formatters.dup
end
# @private
def formatter_loader
@formatter_loader ||= Formatters::Loader.new(Reporter.new(self))
end
# @private
#
# This buffer is used to capture all messages sent to the reporter during
# reporter initialization. It can then replay those messages after the
# formatter is correctly initialized. Otherwise, deprecation warnings
# during formatter initialization can cause an infinite loop.
class DeprecationReporterBuffer
def initialize
@calls = []
end
def deprecation(*args)
@calls << args
end
def play_onto(reporter)
@calls.each do |args|
reporter.deprecation(*args)
end
end
end
# @private
def reporter
# @reporter_buffer should only ever be set in this method to cover
# initialization of @reporter.
@reporter_buffer || @reporter ||=
begin
@reporter_buffer = DeprecationReporterBuffer.new
formatter_loader.setup_default output_stream, deprecation_stream
@reporter_buffer.play_onto(formatter_loader.reporter)
@reporter_buffer = nil
formatter_loader.reporter
end
end
# @api private
#
# Defaults `profile_examples` to 10 examples when `@profile_examples` is `true`.
#
def profile_examples
profile = value_for(:profile_examples, @profile_examples)
if profile && !profile.is_a?(Integer)
10
else
profile
end
end
# @private
def files_or_directories_to_run=(*files)
files = files.flatten
files << default_path if (command == 'rspec' || Runner.running_in_drb?) && default_path && files.empty?
@files_or_directories_to_run = files
@files_to_run = nil
end
# The spec files RSpec will run
# @return [Array] specified files about to run
def files_to_run
@files_to_run ||= get_files_to_run(@files_or_directories_to_run)
end
# Creates a method that delegates to `example` including the submitted
# `args`. Used internally to add variants of `example` like `pending`:
# @param name [String] example name alias
# @param args [Array<Symbol>, Hash] metadata for the generated example
#
# @note The specific example alias below (`pending`) is already
# defined for you.
# @note Use with caution. This extends the language used in your
# specs, but does not add any additional documentation. We use this
# in rspec to define methods like `focus` and `xit`, but we also add
# docs for those methods.
#
# @example
# RSpec.configure do |config|
# config.alias_example_to :pending, :pending => true
# end
#
# # This lets you do this:
#
# describe Thing do
# pending "does something" do
# thing = Thing.new
# end
# end
#
# # ... which is the equivalent of
#
# describe Thing do
# it "does something", :pending => true do
# thing = Thing.new
# end
# end
def alias_example_to(name, *args)
extra_options = Metadata.build_hash_from(args)
RSpec::Core::ExampleGroup.define_example_method(name, extra_options)
end
# Creates a method that defines an example group with the provided
# metadata. Can be used to define example group/metadata shortcuts.
#
# @example
# RSpec.configure do |config|
# config.alias_example_group_to :describe_model, :type => :model
# end
#
# shared_context_for "model tests", :type => :model do
# # define common model test helper methods, `let` declarations, etc
# end
#
# # This lets you do this:
#
# RSpec.describe_model User do
# end
#
# # ... which is the equivalent of
#
# RSpec.describe User, :type => :model do
# end
#
# @note The defined aliased will also be added to the top level
# (e.g. `main` and from within modules) if
# `expose_dsl_globally` is set to true.
# @see #alias_example_to
# @see #expose_dsl_globally=
def alias_example_group_to(new_name, *args)
extra_options = Metadata.build_hash_from(args)
RSpec::Core::ExampleGroup.define_example_group_method(new_name, extra_options)
end
# Define an alias for it_should_behave_like that allows different
# language (like "it_has_behavior" or "it_behaves_like") to be
# employed when including shared examples.
#
# @example
# RSpec.configure do |config|
# config.alias_it_behaves_like_to(:it_has_behavior, 'has behavior:')
# end
#
# # allows the user to include a shared example group like:
#
# describe Entity do
# it_has_behavior 'sortability' do
# let(:sortable) { Entity.new }
# end
# end
#
# # which is reported in the output as:
# # Entity
# # has behavior: sortability
# # ...sortability examples here
#
# @note Use with caution. This extends the language used in your
# specs, but does not add any additional documentation. We use this
# in rspec to define `it_should_behave_like` (for backward
# compatibility), but we also add docs for that method.
def alias_it_behaves_like_to(new_name, report_label = '')
RSpec::Core::ExampleGroup.define_nested_shared_group_method(new_name, report_label)
end
alias_method :alias_it_should_behave_like_to, :alias_it_behaves_like_to
# Adds key/value pairs to the `inclusion_filter`. If `args`
# includes any symbols that are not part of the hash, each symbol
# is treated as a key in the hash with the value `true`.
#
# ### Note
#
# Filters set using this method can be overridden from the command line
# or config files (e.g. `.rspec`).
#
# @example
# # given this declaration
# describe "something", :foo => 'bar' do
# # ...
# end
#
# # any of the following will include that group
# config.filter_run_including :foo => 'bar'
# config.filter_run_including :foo => /^ba/
# config.filter_run_including :foo => lambda {|v| v == 'bar'}
# config.filter_run_including :foo => lambda {|v,m| m[:foo] == 'bar'}
#
# # given a proc with an arity of 1, the lambda is passed the value related to the key, e.g.
# config.filter_run_including :foo => lambda {|v| v == 'bar'}
#
# # given a proc with an arity of 2, the lambda is passed the value related to the key,
# # and the metadata itself e.g.
# config.filter_run_including :foo => lambda {|v,m| m[:foo] == 'bar'}
#
# filter_run_including :foo # same as filter_run_including :foo => true
def filter_run_including(*args)
meta = Metadata.build_hash_from(args, :warn_about_example_group_filtering)
filter_manager.include_with_low_priority meta
end
alias_method :filter_run, :filter_run_including
# Clears and reassigns the `inclusion_filter`. Set to `nil` if you don't
# want any inclusion filter at all.
#
# ### Warning
#
# This overrides any inclusion filters/tags set on the command line or in
# configuration files.
def inclusion_filter=(filter)
meta = Metadata.build_hash_from([filter], :warn_about_example_group_filtering)
filter_manager.include_only meta
end
alias_method :filter=, :inclusion_filter=
# Returns the `inclusion_filter`. If none has been set, returns an empty
# hash.
def inclusion_filter
filter_manager.inclusions
end
alias_method :filter, :inclusion_filter
# Adds key/value pairs to the `exclusion_filter`. If `args`
# includes any symbols that are not part of the hash, each symbol
# is treated as a key in the hash with the value `true`.
#
# ### Note
#
# Filters set using this method can be overridden from the command line
# or config files (e.g. `.rspec`).
#
# @example
# # given this declaration
# describe "something", :foo => 'bar' do
# # ...
# end
#
# # any of the following will exclude that group
# config.filter_run_excluding :foo => 'bar'
# config.filter_run_excluding :foo => /^ba/
# config.filter_run_excluding :foo => lambda {|v| v == 'bar'}
# config.filter_run_excluding :foo => lambda {|v,m| m[:foo] == 'bar'}
#
# # given a proc with an arity of 1, the lambda is passed the value related to the key, e.g.
# config.filter_run_excluding :foo => lambda {|v| v == 'bar'}
#
# # given a proc with an arity of 2, the lambda is passed the value related to the key,
# # and the metadata itself e.g.
# config.filter_run_excluding :foo => lambda {|v,m| m[:foo] == 'bar'}
#
# filter_run_excluding :foo # same as filter_run_excluding :foo => true
def filter_run_excluding(*args)
meta = Metadata.build_hash_from(args, :warn_about_example_group_filtering)
filter_manager.exclude_with_low_priority meta
end
# Clears and reassigns the `exclusion_filter`. Set to `nil` if you don't
# want any exclusion filter at all.
#
# ### Warning
#
# This overrides any exclusion filters/tags set on the command line or in
# configuration files.
def exclusion_filter=(filter)
meta = Metadata.build_hash_from([filter], :warn_about_example_group_filtering)
filter_manager.exclude_only meta
end
# Returns the `exclusion_filter`. If none has been set, returns an empty
# hash.
def exclusion_filter
filter_manager.exclusions
end
# Tells RSpec to include `mod` in example groups. Methods defined in
# `mod` are exposed to examples (not example groups). Use `filters` to
# constrain the groups in which to include the module.
#
# @example
#
# module AuthenticationHelpers
# def login_as(user)
# # ...
# end
# end
#
# module UserHelpers
# def users(username)
# # ...
# end
# end
#
# RSpec.configure do |config|
# config.include(UserHelpers) # included in all modules
# config.include(AuthenticationHelpers, :type => :request)
# end
#
# describe "edit profile", :type => :request do
# it "can be viewed by owning user" do
# login_as users(:jdoe)
# get "/profiles/jdoe"
# assert_select ".username", :text => 'jdoe'
# end
# end
#
# @see #extend
def include(mod, *filters)
meta = Metadata.build_hash_from(filters, :warn_about_example_group_filtering)
include_or_extend_modules << [:include, mod, meta]
end
# Tells RSpec to extend example groups with `mod`. Methods defined in
# `mod` are exposed to example groups (not examples). Use `filters` to
# constrain the groups to extend.
#
# Similar to `include`, but behavior is added to example groups, which
# are classes, rather than the examples, which are instances of those
# classes.
#
# @example
#
# module UiHelpers
# def run_in_browser
# # ...
# end
# end
#
# RSpec.configure do |config|
# config.extend(UiHelpers, :type => :request)
# end
#
# describe "edit profile", :type => :request do
# run_in_browser
#
# it "does stuff in the client" do
# # ...
# end
# end
#
# @see #include
def extend(mod, *filters)