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Contents
require_relative '../spec_helper'
# Load the class under test
require_relative '../../lib/sequitur/digram'
module Sequitur # Re-open the module to get rid of qualified names
describe Digram do
let(:two_symbols) { [:b, :c] }
let(:production) { double('sample-production') }
context 'Standard creation & initialization:' do
it 'should be created with 3 arguments' do
instance = Digram.new(:b, :c, production)
expect(instance.symbols).to eq(two_symbols)
expect(instance.production).to eq(production)
end
it 'should return the production that it refers to' do
instance = Digram.new(:b, :c, production)
expect(instance.production).to eq(production)
end
it 'should whether its symbols are the same' do
instance1 = Digram.new(:a, :a, production)
expect(instance1).to be_repeating
instance1 = Digram.new(:a, :b, production)
expect(instance1).not_to be_repeating
end
end # context
context 'Provided services:' do
it 'should compare itself to another digram' do
instance1 = Digram.new(:a, :b, production)
same = Digram.new(:a, :b, production)
different = Digram.new(:b, :c, production)
expect(instance1).to eq(instance1)
expect(instance1).to eq(same)
expect(instance1).not_to eq(different)
expect(same).not_to eq(different)
end
end # context
end # describe
end # module
# End of file
Version data entries
8 entries across 8 versions & 1 rubygems