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Contents
module OrigenTesters
module SmartestBasedTester
class Base
module Processors
class EmptyBranchCleaner < ATP::Processor
# Delete any on-fail child if it's 'empty'
def on_test(node)
on_pass = node.find(:on_pass)
on_fail = node.find(:on_fail)
unless on_fail.nil?
n = node.remove(on_fail) if branch_is_empty?(on_fail)
return n
end
node
end
# Returns true if:
# - node is completely empty
# - only child is (continue) node
# - only two children, one continue and one set-result
def branch_is_empty?(node)
children = node.children.dup
return true if children.nil?
# test for only-child situation
first_born = children.shift
if children.empty?
if first_born == n0(:continue)
return true
else
return false
end
end
# if only 2 children, check qualificataions, else done and return false
next_born = children.shift
if children.empty?
if (first_born.type == :continue && next_born.type == :set_result) ||
(first_born.type == :set_result && next_born.type == :continue)
return true
end
end
false
end
end
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems