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# frozen_string_literal: true
# Load the builder class
require_relative '../../../lib/rley/lexical/token'
# Mixin module implementing expectation helper methods.
module ExpectationHelper
# Helper method. Compare the data from all the parse entries
# of a given ParseEntrySet with an array of expectation strings.
def compare_entry_texts(anEntrySet, expectations)
raise StandardError, 'Nil entry set' if anEntrySet.nil?
(0...expectations.size).each do |i|
expect(anEntrySet.entries[i].to_s).to eq(expectations[i])
end
end
# Helper method. Compare the antecedents from all the parse entries
# of a given ParseEntrySet at given position with a Hash of the form:
# consequent label => [ antecedent label(s) ]
def check_antecedence(aParsing, aPosition, expectations)
entry_set = aParsing.chart[aPosition]
expectations.each do |consequent_label, antecedent_labels|
consequent = entry_set.entries.find do |entry|
entry.to_s == consequent_label
end
actual_antecedents = aParsing.antecedence.fetch(consequent)
expect(actual_antecedents.map(&:to_s)).to eq(antecedent_labels)
end
end
def expected_terminals(anEntrySet, termNames)
terminals = anEntrySet.expected_terminals
actual_names = terminals.map(&:name)
expect(actual_names.sort).to eq(termNames.sort)
end
end # module
# End of file
Version data entries
15 entries across 15 versions & 1 rubygems