require 'spec_helper' require 'onpdiff' describe ONPDiff do describe "diff" do it "returns an empty array when there is no content to diff" do expect(ONPDiff.new("", "").diff).to eq([]) end it "returns an array with the operation code for each element" do expect(ONPDiff.new("abcd", "abef").diff).to eq([["a", :common], ["b", :common], ["e", :add], ["f", :add], ["c", :delete], ["d", :delete]]) end end describe "short_diff" do it "returns an empty array when there is no content to diff" do expect(ONPDiff.new("", "").short_diff).to eq([]) end it "returns an array with the operation code for each element" do expect(ONPDiff.new("abc", "acd").short_diff).to eq([["a", :common], ["b", :delete], ["c", :common], ["d", :add]]) end it "returns an array with sequencially similar operations merged" do expect(ONPDiff.new("abcd", "abef").short_diff).to eq([["ab", :common], ["ef", :add], ["cd", :delete]]) end end end