A Ruby Step Definition holds a Regexp and a Proc, and is created by calling
Given
, When
or Then
in the
step_definitions
ruby files. See also RbDsl.
Example:
Given /I have (\d+) cucumbers in my belly/ do # some code here end
# File lib/cucumber/rb_support/rb_step_definition.rb, line 26 def initialize(rb_language, regexp, proc_or_sym, options) raise MissingProc if proc_or_sym.nil? if String === regexp p = Regexp.escape(regexp) p = p.gsub(%r\\\$\w+/, '(.*)') # Replace $var with (.*) regexp = Regexp.new("^#{p}$") end @rb_language, @regexp, @proc = rb_language, regexp, proc_or_sym if @proc.kind_of? Symbol @proc = lambda do |*args| target = options[:on] ? instance_exec(&options[:on]) : self target.send(proc_or_sym, *args) end end @rb_language.available_step_definition(regexp_source, file_colon_line) end
# File lib/cucumber/rb_support/rb_step_definition.rb, line 56 def ==(step_definition) regexp_source == step_definition.regexp_source end
# File lib/cucumber/rb_support/rb_step_definition.rb, line 60 def arguments_from(step_name) args = RegexpArgumentMatcher.arguments_from(@regexp, step_name) @rb_language.invoked_step_definition(regexp_source, file_colon_line) if args args end
# File lib/cucumber/rb_support/rb_step_definition.rb, line 76 def backtrace_line @proc.backtrace_line(regexp_source) end
# File lib/cucumber/rb_support/rb_step_definition.rb, line 89 def file @file ||= file_colon_line.split(':')[0] end
# File lib/cucumber/rb_support/rb_step_definition.rb, line 80 def file_colon_line case @proc when Proc @proc.file_colon_line when Symbol ":#{@proc}" end end
# File lib/cucumber/rb_support/rb_step_definition.rb, line 66 def invoke(args) begin args = @rb_language.execute_transforms(args) @rb_language.current_world.cucumber_instance_exec(true, regexp_source, *args, &@proc) rescue Cucumber::ArityMismatchError => e e.backtrace.unshift(self.backtrace_line) raise e end end
# File lib/cucumber/rb_support/rb_step_definition.rb, line 44 def regexp_source @regexp.inspect end
# File lib/cucumber/rb_support/rb_step_definition.rb, line 48 def to_hash flags = '' flags += 'm' if (@regexp.options & Regexp::MULTILINE) != 0 flags += 'i' if (@regexp.options & Regexp::IGNORECASE) != 0 flags += 'x' if (@regexp.options & Regexp::EXTENDED) != 0 {'source' => @regexp.source, 'flags' => flags} end