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require 'test_helper'
require 'barby/barcode/ean_8'
class EAN8Test < Barby::TestCase
describe 'validations' do
before do
@valid = EAN8.new('1234567')
end
it "should be valid with 7 digits" do
assert @valid.valid?
end
it "should not be valid with less than 7 digits" do
@valid.data = '123456'
refute @valid.valid?
end
it "should not be valid with more than 7 digits" do
@valid.data = '12345678'
refute @valid.valid?
end
it "should not be valid with non-digits" do
@valid.data = 'abcdefg'
refute @valid.valid?
end
end
describe 'checksum' do
before :each do
@code = EAN8.new('5512345')
end
it "should have the expected weighted_sum" do
@code.weighted_sum.must_equal 53
end
it "should have the expected checksum" do
@code.checksum.must_equal 7
end
end
describe 'data' do
before :each do
@data = '5512345'
@code = EAN8.new(@data)
end
it "should have the expected data" do
@code.data.must_equal @data
end
it "should have the expected odd_and_even_numbers" do
@code.odd_and_even_numbers.must_equal [[5,3,1,5],[4,2,5]]
end
it "should have the expected left_numbers" do
#EAN-8 includes the first character in the left-hand encoding, unlike EAN-13
@code.left_numbers.must_equal [5,5,1,2]
end
it "should have the expected right_numbers" do
@code.right_numbers.must_equal [3,4,5,7]
end
it "should return the data with checksum on to_s" do
@code.to_s.must_equal '55123457'
end
end
describe 'encoding' do
before :each do
@code = EAN8.new('5512345')
end
it "should have the expected left_parity_map" do
@code.left_parity_map.must_equal [:odd, :odd, :odd, :odd]
end
it "should have the expected left_encoding" do
@code.left_encoding.must_equal '0110001011000100110010010011'
end
it "should have the expected right_encoding" do
@code.right_encoding.must_equal '1000010101110010011101000100'
end
end
end
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