unfold_presenter_spec.rb 4.18 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
# frozen_string_literal: true

require 'spec_helper'

describe Blobs::UnfoldPresenter do
  include FakeBlobHelpers

  let(:project) { create(:project, :repository) }
  let(:blob) { fake_blob(path: 'foo', data: "1\n2\n3") }
  let(:subject) { described_class.new(blob, params) }

  describe '#initialize' do
    context 'when full is false' do
      let(:params) { { full: false, since: 2, to: 3, bottom: false, offset: 1, indent: 1 } }

      it 'sets attributes' do
        result = subject

        expect(result.full?).to eq(false)
        expect(result.since).to eq(2)
        expect(result.to).to eq(3)
        expect(result.bottom).to eq(false)
        expect(result.offset).to eq(1)
        expect(result.indent).to eq(1)
      end
    end

    context 'when full is true' do
      let(:params) { { full: true, since: 2, to: 3, bottom: false, offset: 1, indent: 1 } }

      it 'sets other attributes' do
        result = subject

        expect(result.full?).to eq(true)
        expect(result.since).to eq(1)
        expect(result.to).to eq(blob.lines.size)
        expect(result.bottom).to eq(false)
        expect(result.offset).to eq(0)
        expect(result.indent).to eq(0)
      end
    end
  end

44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118
  describe '#diff_lines' do
    let(:total_lines) { 50 }
    let(:blob) { fake_blob(path: 'foo', data: (1..total_lines).to_a.join("\n")) }

    context 'when "full" is true' do
      let(:params) { { full: true } }

      it 'returns all lines' do
        lines = subject.diff_lines

        expect(lines.size).to eq(total_lines)

        lines.each.with_index do |line, index|
          expect(line.text).to include("LC#{index + 1}")
          expect(line.text).to eq(line.rich_text)
          expect(line.type).to be_nil
        end
      end

      context 'when last line is empty' do
        let(:blob) { fake_blob(path: 'foo', data: "1\n2\n") }

        it 'disregards last line' do
          lines = subject.diff_lines

          expect(lines.size).to eq(2)
        end
      end
    end

    context 'when "since" is equal to 1' do
      let(:params) { { since: 1, to: 10, offset: 10 } }

      it 'does not add top match line' do
        line = subject.diff_lines.first

        expect(line.type).to be_nil
      end
    end

    context 'when since is greater than 1' do
      let(:params) { { since: 5, to: 10, offset: 10 } }

      it 'adds top match line' do
        line = subject.diff_lines.first

        expect(line.type).to eq('match')
        expect(line.old_pos).to eq(5)
        expect(line.new_pos).to eq(5)
      end
    end

    context 'when "to" is less than blob size' do
      let(:params) { { since: 1, to: 5, offset: 10, bottom: true } }

      it 'adds bottom match line' do
        line = subject.diff_lines.last

        expect(line.type).to eq('match')
        expect(line.old_pos).to eq(-5)
        expect(line.new_pos).to eq(5)
      end
    end

    context 'when "to" is equal to blob size' do
      let(:params) { { since: 1, to: total_lines, offset: 10, bottom: true } }

      it 'does not add bottom match line' do
        line = subject.diff_lines.last

        expect(line.type).to be_nil
      end
    end
  end

119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159
  describe '#lines' do
    context 'when scope is specified' do
      let(:params) { { since: 2, to: 3 } }

      it 'returns lines cropped by params' do
        expect(subject.lines.size).to eq(2)
        expect(subject.lines[0]).to include('LC2')
        expect(subject.lines[1]).to include('LC3')
      end
    end

    context 'when full is true' do
      let(:params) { { full: true } }

      it 'returns all lines' do
        expect(subject.lines.size).to eq(3)
        expect(subject.lines[0]).to include('LC1')
        expect(subject.lines[1]).to include('LC2')
        expect(subject.lines[2]).to include('LC3')
      end
    end
  end

  describe '#match_line_text' do
    context 'when bottom is true' do
      let(:params) { { since: 2, to: 3, bottom: true } }

      it 'returns empty string' do
        expect(subject.match_line_text).to eq('')
      end
    end

    context 'when bottom is false' do
      let(:params) { { since: 2, to: 3, bottom: false } }

      it 'returns match line string' do
        expect(subject.match_line_text).to eq("@@ -2,1+2,1 @@")
      end
    end
  end
end