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# frozen_string_literal: true
require_relative '../../spec_helper'
# Load the class under test
require_relative '../../../lib/rley/gfg/vertex'
module Rley # Open this namespace to avoid module qualifier prefixes
module GFG # Open this namespace to avoid module qualifier prefixes
describe Vertex do
subject { Vertex.new }
context 'Initialization:' do
it 'should be created without argument' do
expect { Vertex.new }.not_to raise_error
end
it "shouldn't have edges at start" do
expect(subject.edges.empty?).to eq(true)
end
end # context
context 'Provided services:' do
it 'should know whether it has a dot at the end of the rhs' do
expect(subject).not_to be_complete
end
it 'should know the previous symbol (if any) in the rhs' do
expect(subject.prev_symbol).to be_nil
end
it 'should know the next symbol (if any) in the rhs' do
expect(subject.next_symbol).to be_nil
end
it 'should accept at most one new edge' do
edge1 = double('fake-edge1')
edge2 = double('fake-edge2')
expect { subject.add_edge(edge1) }.not_to raise_error
expect(subject.edges.size).to eq(1)
expect(subject.edges.last).to eq(edge1)
err = StandardError
msg = 'At most one edge accepted'
expect { subject.add_edge(edge2) }.to raise_error err, msg
expect(subject.edges.size).to eq(1)
expect(subject.edges.last).to eq(edge1)
end
end # context
end # describe
end # module
end # module
# End of file
Version data entries
11 entries across 11 versions & 1 rubygems