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Module: RSpec::Expectations::Syntax Private

Do not use. This module is for internal use only.
Relationships & Source Files
Defined in: rspec-expectations/lib/rspec/expectations/syntax.rb

Overview

Provides methods for enabling and disabling the available syntaxes provided by rspec-expectations.

Class Method Summary

Class Method Details

.default_should_host (mod_func)

Determines where we add ‘should` and should_not.

[ GitHub ] 

  


# File 'rspec-expectations/lib/rspec/expectations/syntax.rb', line 11



def default_should_host
  @default_should_host ||= ::Object.ancestors.last
end


  








  

    .disable_expect(syntax_host = ::RSpec::Matchers)   (mod_func)
  



  

    

Disables the ‘expect` syntax.


  





  


  [ GitHub ]


  

  


# File 'rspec-expectations/lib/rspec/expectations/syntax.rb', line 80



def disable_expect(syntax_host=::RSpec::Matchers)
  return unless expect_enabled?(syntax_host)

  syntax_host.module_exec do
    undef expect
  end
end


  








  

    .disable_should(syntax_host = default_should_host)   (mod_func)
  



  

    

Disables the ‘should` syntax.


  





  


  [ GitHub ]


  

  


# File 'rspec-expectations/lib/rspec/expectations/syntax.rb', line 57



def disable_should(syntax_host=default_should_host)
  return unless should_enabled?(syntax_host)

  syntax_host.module_exec do
    undef should
    undef should_not
  end
end


  








  

    .enable_expect(syntax_host = ::RSpec::Matchers)   (mod_func)
  



  

    

Enables the ‘expect` syntax.


  





  


  [ GitHub ]


  

  


# File 'rspec-expectations/lib/rspec/expectations/syntax.rb', line 68



def enable_expect(syntax_host=::RSpec::Matchers)
  return if expect_enabled?(syntax_host)

  syntax_host.module_exec do
    def expect(value=::RSpec::Expectations::ExpectationTarget::UndefinedValue, &block)
      ::RSpec::Expectations::ExpectationTarget.for(value, block)
    end
  end
end


  








  

    .enable_should(syntax_host = default_should_host)   (mod_func)
  



  

    

Enables the ‘should` syntax.


  





  


  [ GitHub ]


  

  


# File 'rspec-expectations/lib/rspec/expectations/syntax.rb', line 38



def enable_should(syntax_host=default_should_host)
  @warn_about_should = false if syntax_host == default_should_host
  return if should_enabled?(syntax_host)

  syntax_host.module_exec do
    def should(matcher=nil, message=nil, &block)
      ::RSpec::Expectations::Syntax.warn_about_should_unless_configured(::Kernel.__method__)
      ::RSpec::Expectations::PositiveExpectationHandler.handle_matcher(self, matcher, message, &block)
    end

    def should_not(matcher=nil, message=nil, &block)
      ::RSpec::Expectations::Syntax.warn_about_should_unless_configured(::Kernel.__method__)
      ::RSpec::Expectations::NegativeExpectationHandler.handle_matcher(self, matcher, message, &block)
    end
  end
end


  








  

    .expect_enabled?(syntax_host = ::RSpec::Matchers)  ⇒ Boolean  (mod_func)
  



  

    

Indicates whether or not the ‘expect` syntax is enabled.


  





  


  [ GitHub ]


  

  


# File 'rspec-expectations/lib/rspec/expectations/syntax.rb', line 96



def expect_enabled?(syntax_host=::RSpec::Matchers)
  syntax_host.method_defined?(:expect)
end


  








  

    .should_enabled?(syntax_host = default_should_host)  ⇒ Boolean  (mod_func)
  



  

    

Indicates whether or not the ‘should` syntax is enabled.


  





  


  [ GitHub ]


  

  


# File 'rspec-expectations/lib/rspec/expectations/syntax.rb', line 90



def should_enabled?(syntax_host=default_should_host)
  syntax_host.method_defined?(:should)
end


  








  

    .warn_about_should!   (mod_func)
  



  

    

Instructs rspec-expectations to warn on first usage of ‘should` or should_not. Enabled by default. This is largely here to facilitate testing.


  





  


  [ GitHub ]


  

  


# File 'rspec-expectations/lib/rspec/expectations/syntax.rb', line 18



def warn_about_should!
  @warn_about_should = true
end


  








  

    .warn_about_should_unless_configured(method_name)   (mod_func)
  



  

    

Generates a deprecation warning for the given method if no warning has already been issued.


  





  


  [ GitHub ]


  

  


# File 'rspec-expectations/lib/rspec/expectations/syntax.rb', line 25



def warn_about_should_unless_configured(method_name)
  return unless @warn_about_should

  RSpec.deprecate(
    "Using `#{method_name}` from rspec-expectations' old `:should` syntax without explicitly enabling the syntax",
    :replacement => "the new `:expect` syntax or explicitly enable `:should` with `config.expect_with(:rspec) { |c| c.syntax = :should }`"
  )

  @warn_about_should = false
end