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require 'spec_helper'
describe DiffHelper do
include RepoHelpers
let(:project) { create(:project) }
let(:repository) { project.repository }
let(:commit) { project.commit(sample_commit.id) }
let(:diffs) { commit.diffs }
let(:diff) { diffs.first }
let(:diff_refs) { [commit.parent, commit] }
let(:diff_file) { Gitlab::Diff::File.new(diff, diff_refs) }
describe 'diff_view' do
it 'returns a valid value when cookie is set' do
helper.request.cookies[:diff_view] = 'parallel'
expect(helper.diff_view).to eq 'parallel'
end
it 'returns a default value when cookie is invalid' do
helper.request.cookies[:diff_view] = 'invalid'
expect(helper.diff_view).to eq 'inline'
end
it 'returns a default value when cookie is nil' do
expect(helper.request.cookies).to be_empty
expect(helper.diff_view).to eq 'inline'
end
end
describe 'diff_hard_limit_enabled?' do
it 'should return true if param is provided' do
allow(controller).to receive(:params) { { force_show_diff: true } }
expect(diff_hard_limit_enabled?).to be_truthy
end
it 'should return false if param is not provided' do
expect(diff_hard_limit_enabled?).to be_falsey
end
end
describe 'diff_options' do
it 'should return hard limit for a diff if force diff is true' do
allow(controller).to receive(:params) { { force_show_diff: true } }
expect(diff_options).to include(Commit.max_diff_options)
end
it 'should return safe limit for a diff if force diff is false' do
expect(diff_options).not_to include(:max_lines, :max_files)
end
end
describe 'unfold_bottom_class' do
it 'should return empty string when bottom line shouldnt be unfolded' do
expect(unfold_bottom_class(false)).to eq('')
end
it 'should return js class when bottom lines should be unfolded' do
expect(unfold_bottom_class(true)).to eq('js-unfold-bottom')
end
end
describe 'unfold_class' do
it 'returns empty on false' do
expect(unfold_class(false)).to eq('')
end
it 'returns a class on true' do
expect(unfold_class(true)).to eq('unfold js-unfold')
end
end
describe '#diff_line_content' do
it 'should return non breaking space when line is empty' do
expect(diff_line_content(nil)).to eq(' ')
end
it 'should return the line itself' do
expect(diff_line_content(diff_file.diff_lines.first.text)).
to eq('@@ -6,12 +6,18 @@ module Popen')
expect(diff_line_content(diff_file.diff_lines.first.type)).to eq('match')
expect(diff_file.diff_lines.first.new_pos).to eq(6)
end
end
describe "#mark_inline_diffs" do
let(:old_line) { %{abc 'def'} }
let(:new_line) { %{abc "def"} }
it "returns strings with marked inline diffs" do
marked_old_line, marked_new_line = mark_inline_diffs(old_line, new_line)
expect(marked_old_line).to eq("abc <span class='idiff left right deletion'>'def'</span>")
expect(marked_old_line).to be_html_safe
expect(marked_new_line).to eq("abc <span class='idiff left right addition'>"def"</span>")
expect(marked_new_line).to be_html_safe
end
end
end