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Contents
module Cucumber
module StepMatchSearch
def self.new(search, configuration)
CachesStepMatch.new(
AssertUnambiguousMatch.new(
configuration.guess? ? AttemptToGuessAmbiguousMatch.new(search) : search,
configuration
)
)
end
class AssertUnambiguousMatch
def initialize(search, configuration)
@search, @configuration = search, configuration
end
def call(step_name)
result = @search.call(step_name)
raise Cucumber::Ambiguous.new(step_name, result, @configuration.guess?) if result.length > 1
result
end
end
class AttemptToGuessAmbiguousMatch
def initialize(search)
@search = search
end
def call(step_name)
best_matches(step_name, @search.call(step_name))
end
private
def best_matches(step_name, step_matches) #:nodoc:
no_groups = step_matches.select {|step_match| step_match.args.length == 0}
max_arg_length = step_matches.map {|step_match| step_match.args.length }.max
top_groups = step_matches.select {|step_match| step_match.args.length == max_arg_length }
if no_groups.any?
longest_regexp_length = no_groups.map {|step_match| step_match.text_length }.max
no_groups.select {|step_match| step_match.text_length == longest_regexp_length }
elsif top_groups.any?
shortest_capture_length = top_groups.map {|step_match| step_match.args.inject(0) {|sum, c| sum + c.to_s.length } }.min
top_groups.select {|step_match| step_match.args.inject(0) {|sum, c| sum + c.to_s.length } == shortest_capture_length }
else
top_groups
end
end
end
require 'delegate'
class CachesStepMatch < SimpleDelegator
def call(step_name) #:nodoc:
@match_cache ||= {}
matches = @match_cache[step_name]
return matches if matches
@match_cache[step_name] = super(step_name)
end
end
end
end
Version data entries
10 entries across 10 versions & 2 rubygems