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59097b207f
Over the years we accrued many spelling mistakes in the code base. This PR attempts to fix spelling mistakes and typos in all areas of the code that are extremely safe to change - comments - test descriptions - other low risk areas
77 lines
2.2 KiB
Ruby
77 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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require 'rails_helper'
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require 'onpdiff'
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describe ONPDiff do
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describe "diff" do
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it "returns an empty array when there is no content to diff" do
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expect(ONPDiff.new("", "").diff).to eq([])
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end
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it "returns an array with the operation code for each element" do
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expect(ONPDiff.new("abcd", "abef").diff).to eq([["a", :common], ["b", :common], ["e", :add], ["f", :add], ["c", :delete], ["d", :delete]])
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end
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it "bails out on large diffs" do
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a = SecureRandom.alphanumeric(5_000)
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b = SecureRandom.alphanumeric(5_000)
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expect(ONPDiff.new(a, b).diff).to eq([])
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end
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end
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describe "short_diff" do
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it "returns an empty array when there is no content to diff" do
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expect(ONPDiff.new("", "").short_diff).to eq([])
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end
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it "returns an array with the operation code for each element" do
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expect(ONPDiff.new("abc", "acd").short_diff).to eq([["a", :common], ["b", :delete], ["c", :common], ["d", :add]])
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end
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it "returns an array with sequentially similar operations merged" do
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expect(ONPDiff.new("abcd", "abef").short_diff).to eq([["ab", :common], ["ef", :add], ["cd", :delete]])
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end
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end
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describe "paragraph_diff" do
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it "returns an empty array when there is no content to diff" do
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expect(ONPDiff.new("", "").paragraph_diff).to eq([])
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end
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it "returns an array with the operation code for each element" do
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expect(ONPDiff.new("abc", "acd").paragraph_diff).to eq([["a", :common], ["b", :delete], ["c", :common], ["d", :add]])
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end
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it "pairs as many elements as possible" do
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expect(ONPDiff.new("abcd", "abef").paragraph_diff).to eq([
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["a", :common], ["b", :common],
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["e", :add], ["c", :delete],
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["f", :add], ["d", :delete]
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])
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expect(ONPDiff.new("abcde", "abfg").paragraph_diff).to eq([
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["a", :common], ["b", :common],
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["c", :delete],
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["d", :delete], ["f", :add],
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["e", :delete], ["g", :add]
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])
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expect(ONPDiff.new("abcd", "abefg").paragraph_diff).to eq([
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["a", :common], ["b", :common],
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["e", :add],
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["f", :add], ["c", :delete],
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["g", :add], ["d", :delete]
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])
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end
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end
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end
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