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# 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
context 'when to is -1' do
let(:params) { { full: false, since: 2, to: -1, bottom: true, offset: 1, indent: 1 } }
it 'sets other attributes' do
result = subject
expect(result.full?).to eq(false)
expect(result.since).to eq(2)
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
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|
line_number = index + 1
expect(line.text).to eq(line_number.to_s)
expect(line.rich_text).to include("LC#{line_number}")
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(:default_params) { { since: 5, to: 10, offset: 10 } }
let(:params) { default_params }
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
context '"to" is higher than blob size' do
let(:params) { default_params.merge(to: total_lines + 10, bottom: true) }
it 'does not add bottom match line' do
line = subject.diff_lines.last
expect(line.type).to be_nil
end
end
context '"to" is equal to blob size' do
let(:params) { default_params.merge(to: total_lines, bottom: true) }
it 'does not add bottom match line' do
line = subject.diff_lines.last
expect(line.type).to be_nil
end
end
context '"to" is less than blob size' do
let(:params) { default_params.merge(to: total_lines - 3, 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(total_lines - 3 - params[:offset])
expect(line.new_pos).to eq(total_lines - 3)
end
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
context 'when "to" is "-1"' do
let(:params) { { since: 10, to: -1, offset: 10, bottom: true } }
it 'does not add bottom match line' do
line = subject.diff_lines.last
expect(line.type).to be_nil
end
it 'last line is the latest blob line' do
line = subject.diff_lines.last
expect(line.text).to eq(total_lines.to_s)
end
end
end
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
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