Class: Riot::RespondToMacro

Inherits:
AssertionMacro show all
Defined in:
lib/riot/assertion_macros/respond_to.rb

Overview

Asserts that the result of the test is an object that responds to the given method

asserts("test") { "foo" }.respond_to(:to_s)
should("test") { "foo" }.respond_to(:to_s)

If you want to test that the result does not respond to something:

denies("test") { "foo" }.responds_to(:harassment)

Instance Attribute Summary

Attributes inherited from AssertionMacro

#file, #line

Instance Method Summary (collapse)

Methods inherited from AssertionMacro

#error, #expected_message, expects_exception!, #expects_exception?, #fail, #new_message, #pass, register, #should_have_message

Instance Method Details

- (Array) devaluate(actual, expected)

Supports negative/converse assertion testing. This is also where magic happens.

Parameters:

  • actual (Object)

    the value returned from evaling the Assertion block

  • expected (Symbol, String)

    the method name that actual should not respond to

Returns:



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# File 'lib/riot/assertion_macros/respond_to.rb', line 26

def devaluate(actual, expected)
  if actual.respond_to?(expected)
    fail(expected_message.method(expected).is_defined)
  else
    pass new_message.responds_to(expected)
  end
end

- (Array) evaluate(actual, expected)

Supports positive assertion testing. This is where magic happens.

Parameters:

  • actual (Object)

    the value returned from evaling the Assertion block

  • expected (Symbol, String)

    the method name that actual should respond to

Returns:



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# File 'lib/riot/assertion_macros/respond_to.rb', line 16

def evaluate(actual, expected)
  if actual.respond_to?(expected)
    pass(new_message.responds_to(expected))
  else
    fail(expected_message.method(expected).is_not_defined)
  end
end