Module: RespondsToParent::SelectorAssertion

Included in:
ActionController::Assertions::SelectorAssertions
Defined in:
lib/responds_to_parent/selector_assertion.rb

Instance Method Summary collapse

Instance Method Details

#assert_select_parent(*args, &block) ⇒ Object

:call-seq:

assert_select_parent()
assert_select_parent() { |script| ... }

Selects JavaScript that is generated for the ‘parent’ window.

Without a block, #assert_select_parent asserts that the response is generated by responds_to_parent.

With a block, #assert_select_parent selects script that is supposed to be evaluated in the parent window and passes it to the block. Typically #assert_select_rjs is used in the block.



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# File 'lib/responds_to_parent/selector_assertion.rb', line 15

def assert_select_parent(*args, &block)
  wrapper_re_str = Regexp.escape("with(window.parent) { setTimeout(function() { window.eval('") +
                 "(.*)" +
                 Regexp.escape("'); window.loc && loc.replace('about:blank'); }, 1) }")
  match = @response.body.match(Regexp.new(wrapper_re_str))

  if match
    escaped_js = match[1]
    unescaped_js = escaped_js.
      gsub(%r!</scr"\+"ipt>!, '</script>').
      gsub(/\\(\'|\")/, '\1').
      gsub(/((?:^|[^\\])(?:\\\\)*)\\n/, "\\1\n"). # replace `n' with odd number of backslash.
      gsub(/\\\\/, '\\')
    @response.body = unescaped_js # assert_select_rjs refers @response.body.

    if block_given?
      begin
        in_scope, @selected = @selected, unescaped_js
        yield unescaped_js
      ensure
        @selected = in_scope
      end
    end
    unescaped_js
  else
    # doesn't seem a responds_to_parent content.
    flunk args.shift || "No content for the parent window."
  end
end