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# -*- ruby encoding: utf-8 -*-
require 'spec_helper'
describe Diff::LCS::Change do
describe "an add" do
subject { described_class.new('+', 0, 'element') }
it { should_not be_deleting }
it { should be_adding }
it { should_not be_unchanged }
it { should_not be_changed }
it { should_not be_finished_a }
it { should_not be_finished_b }
end
describe "a delete" do
subject { described_class.new('-', 0, 'element') }
it { should be_deleting }
it { should_not be_adding }
it { should_not be_unchanged }
it { should_not be_changed }
it { should_not be_finished_a }
it { should_not be_finished_b }
end
describe "an unchanged" do
subject { described_class.new('=', 0, 'element') }
it { should_not be_deleting }
it { should_not be_adding }
it { should be_unchanged }
it { should_not be_changed }
it { should_not be_finished_a }
it { should_not be_finished_b }
end
describe "a changed" do
subject { described_class.new('!', 0, 'element') }
it { should_not be_deleting }
it { should_not be_adding }
it { should_not be_unchanged }
it { should be_changed }
it { should_not be_finished_a }
it { should_not be_finished_b }
end
describe "a finished_a" do
subject { described_class.new('>', 0, 'element') }
it { should_not be_deleting }
it { should_not be_adding }
it { should_not be_unchanged }
it { should_not be_changed }
it { should be_finished_a }
it { should_not be_finished_b }
end
describe "a finished_b" do
subject { described_class.new('<', 0, 'element') }
it { should_not be_deleting }
it { should_not be_adding }
it { should_not be_unchanged }
it { should_not be_changed }
it { should_not be_finished_a }
it { should be_finished_b }
end
describe "as array" do
it "should be converted" do
action, position, element = described_class.new('!', 0, 'element')
expect(action).to eq '!'
expect(position).to eq 0
expect(element).to eq 'element'
end
end
end
describe Diff::LCS::ContextChange do
describe "as array" do
it "should be converted" do
action, (old_position, old_element), (new_position, new_element) =
described_class.new('!', 1, 'old_element', 2, 'new_element')
expect(action).to eq '!'
expect(old_position).to eq 1
expect(old_element).to eq 'old_element'
expect(new_position).to eq 2
expect(new_element).to eq 'new_element'
end
end
end
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