Sha256: 8b26b6094e324c8ba58cc7c77cf102564262e968bc2a21d4754697b522eee024
Contents?: true
Size: 1.39 KB
Versions: 7
Compression:
Stored size: 1.39 KB
Contents
require 'spec_helper'
module Sexpr::Matcher
describe Many, "eat" do
let(:term){ Terminal.new(/^[a-z]+$/) }
let(:rule){ Many.new term, min, max }
context "when set for *" do
let(:min){ 0 }
let(:max){ nil }
it 'returns the subarray when zero match' do
rule.eat([nil, "world", "then"]).should eq([nil, "world", "then"])
end
it 'returns the subarray when one match' do
rule.eat(["world", nil, "then"]).should eq([nil, "then"])
end
it 'returns the subarray when multiple matches' do
rule.eat(["world", "then"]).should eq([])
end
end # *
context "when set for +" do
let(:min){ 1 }
let(:max){ nil }
it 'returns nil zero match' do
rule.eat([nil, "world", "then"]).should be_nil
end
it 'returns the subarray when one match' do
rule.eat(["world", nil, "then"]).should eq([nil, "then"])
end
it 'returns the subarray when multiple matches' do
rule.eat(["world", "then"]).should eq([])
end
end # +
context "when set for ?" do
let(:min){ 0 }
let(:max){ 1 }
it 'returns the subarray when zero match' do
rule.eat([nil, "world", "then"]).should eq([nil, "world", "then"])
end
it 'returns the subarray when one match' do
rule.eat(["world", "then"]).should eq(["then"])
end
end # ?
end
end
Version data entries
7 entries across 7 versions & 1 rubygems