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require 'rspec/expectations/syntax'
module RSpec
module Matchers
# Provides configuration options for rspec-expectations.
class Configuration
# Configures the supported syntax.
# @param [Array<Symbol>, Symbol] values the syntaxes to enable
# @example
# RSpec.configure do |rspec|
# rspec.expect_with :rspec do |c|
# c.syntax = :should
# # or
# c.syntax = :expect
# # or
# c.syntax = [:should, :expect]
# end
# end
def syntax=(values)
if Array(values).include?(:expect)
Expectations::Syntax.enable_expect
else
Expectations::Syntax.disable_expect
end
if Array(values).include?(:should)
Expectations::Syntax.enable_should
else
Expectations::Syntax.disable_should
end
end
# The list of configured syntaxes.
# @return [Array<Symbol>] the list of configured syntaxes.
def syntax
syntaxes = []
syntaxes << :should if Expectations::Syntax.should_enabled?
syntaxes << :expect if Expectations::Syntax.expect_enabled?
syntaxes
end
# color config for expectations
# fallback if rspec core not available
if ::RSpec.respond_to?(:configuration)
def color?
::RSpec.configuration.color_enabled?
end
else
attr_writer :color
def color?
@color
end
end
# Adds `should` and `should_not` to the given classes
# or modules. This can be used to ensure `should` works
# properly on things like proxy objects (particular
# `Delegator`-subclassed objects on 1.8).
#
# @param [Array<Module>] modules the list of classes or modules
# to add `should` and `should_not` to.
def add_should_and_should_not_to(*modules)
modules.each do |mod|
Expectations::Syntax.enable_should(mod)
end
end
# Sets or gets the backtrace formatter. The backtrace formatter should
# implement `#format_backtrace(Array<String>)`. This is used
# to format backtraces of errors handled by the `raise_error`
# matcher.
#
# If you are using rspec-core, rspec-core's backtrace formatting
# will be used (including respecting the presence or absence of
# the `--backtrace` option).
#
# @overload backtrace_formatter
# @return [#format_backtrace] the backtrace formatter
# @overload backtrace_formatter=
# @param value [#format_backtrace] sets the backtrace formatter
attr_writer :backtrace_formatter
def backtrace_formatter
@backtrace_formatter ||= if defined?(::RSpec::Core::BacktraceFormatter)
::RSpec::Core::BacktraceFormatter
else
NullBacktraceFormatter
end
end
# @api private
NullBacktraceFormatter = Module.new do
def self.format_backtrace(backtrace)
backtrace
end
end
end
# The configuration object
# @return [RSpec::Matchers::Configuration] the configuration object
def self.configuration
@configuration ||= Configuration.new
end
# set default syntax
configuration.syntax = [:expect, :should]
end
end
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