435 lines
16 KiB
Ruby
435 lines
16 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe DiffHelper do
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include RepoHelpers
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let(:project) { create(:project, :repository) }
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let(:repository) { project.repository }
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let(:commit) { project.commit(sample_commit.id) }
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let(:diffs) { commit.raw_diffs }
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let(:diff) { diffs.first }
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let(:diff_refs) { commit.diff_refs }
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let(:diff_file) { Gitlab::Diff::File.new(diff, diff_refs: diff_refs, repository: repository) }
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describe 'diff_view' do
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it 'uses the view param over the cookie' do
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controller.params[:view] = 'parallel'
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helper.request.cookies[:diff_view] = 'inline'
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expect(helper.diff_view).to eq :parallel
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end
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it 'returns the default value when the view param is invalid' do
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controller.params[:view] = 'invalid'
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expect(helper.diff_view).to eq :inline
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end
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it 'returns a valid value when cookie is set' do
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helper.request.cookies[:diff_view] = 'parallel'
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expect(helper.diff_view).to eq :parallel
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end
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it 'returns the default value when cookie is invalid' do
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helper.request.cookies[:diff_view] = 'invalid'
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expect(helper.diff_view).to eq :inline
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end
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it 'returns the default value when cookie is nil' do
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expect(helper.request.cookies).to be_empty
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expect(helper.diff_view).to eq :inline
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end
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end
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describe 'diff_options' do
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it 'returns no collapse false' do
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expect(diff_options).to include(expanded: false)
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end
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it 'returns no collapse true if expanded' do
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allow(controller).to receive(:params) { { expanded: true } }
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expect(diff_options).to include(expanded: true)
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end
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it 'returns no collapse true if action name diff_for_path' do
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allow(controller).to receive(:action_name) { 'diff_for_path' }
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expect(diff_options).to include(expanded: true)
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end
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it 'returns paths if action name diff_for_path and param old path' do
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allow(controller).to receive(:params) { { old_path: 'lib/wadus.rb' } }
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allow(controller).to receive(:action_name) { 'diff_for_path' }
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expect(diff_options[:paths]).to include('lib/wadus.rb')
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end
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it 'returns paths if action name diff_for_path and param new path' do
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allow(controller).to receive(:params) { { new_path: 'lib/wadus.rb' } }
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allow(controller).to receive(:action_name) { 'diff_for_path' }
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expect(diff_options[:paths]).to include('lib/wadus.rb')
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end
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end
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describe '#diff_line_content' do
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context 'when the line is empty' do
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it 'returns a non breaking space' do
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expect(diff_line_content(nil)).to eq(' ')
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end
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it 'returns an HTML-safe string' do
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expect(diff_line_content(nil)).to be_html_safe
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end
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end
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context 'when the line is not empty' do
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context 'when the line starts with +, -, or a space' do
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it 'strips the first character' do
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expect(diff_line_content('+new line')).to eq('new line')
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expect(diff_line_content('-new line')).to eq('new line')
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expect(diff_line_content(' new line')).to eq('new line')
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end
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context 'when the line is HTML-safe' do
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it 'returns an HTML-safe string' do
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expect(diff_line_content('+new line'.html_safe)).to be_html_safe
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expect(diff_line_content('-new line'.html_safe)).to be_html_safe
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expect(diff_line_content(' new line'.html_safe)).to be_html_safe
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end
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end
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context 'when the line is not HTML-safe' do
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it 'returns a non-HTML-safe string' do
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expect(diff_line_content('+new line')).not_to be_html_safe
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expect(diff_line_content('-new line')).not_to be_html_safe
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expect(diff_line_content(' new line')).not_to be_html_safe
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end
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end
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end
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context 'when the line does not start with a +, -, or a space' do
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it 'returns the string' do
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expect(diff_line_content('@@ -6,12 +6,18 @@ module Popen')).to eq('@@ -6,12 +6,18 @@ module Popen')
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end
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context 'when the line is HTML-safe' do
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it 'returns an HTML-safe string' do
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expect(diff_line_content('@@ -6,12 +6,18 @@ module Popen'.html_safe)).to be_html_safe
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end
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end
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context 'when the line is not HTML-safe' do
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it 'returns a non-HTML-safe string' do
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expect(diff_line_content('@@ -6,12 +6,18 @@ module Popen')).not_to be_html_safe
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end
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end
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end
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end
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end
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describe "#diff_link_number" do
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using RSpec::Parameterized::TableSyntax
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let(:line) do
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double(:line, type: line_type)
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end
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# This helper is used to generate the line numbers on the
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# diff lines. It essentially just returns a blank string
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# on the old/new lines. The following table tests all the
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# possible permutations for clarity.
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where(:line_type, :match, :line_number, :expected_return_value) do
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"new" | "new" | 1 | " "
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"new" | "old" | 2 | 2
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"old" | "new" | 3 | 3
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"old" | "old" | 4 | " "
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"new-nonewline" | "new" | 5 | 5
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"new-nonewline" | "old" | 6 | 6
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"old-nonewline" | "new" | 7 | 7
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"old-nonewline" | "old" | 8 | 8
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"match" | "new" | 9 | 9
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"match" | "old" | 10 | 10
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end
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with_them do
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it "returns the expected value" do
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expect(helper.diff_link_number(line.type, match, line_number)).to eq(expected_return_value)
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end
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end
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end
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describe "#mark_inline_diffs" do
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let(:old_line) { %{abc 'def'} }
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let(:new_line) { %{abc "def"} }
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it "returns strings with marked inline diffs" do
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marked_old_line, marked_new_line = mark_inline_diffs(old_line, new_line)
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expect(marked_old_line).to eq(%q{abc <span class="idiff left deletion">'</span>def<span class="idiff right deletion">'</span>})
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expect(marked_old_line).to be_html_safe
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expect(marked_new_line).to eq(%q{abc <span class="idiff left addition">"</span>def<span class="idiff right addition">"</span>})
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expect(marked_new_line).to be_html_safe
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end
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context 'when given HTML' do
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it 'sanitizes it' do
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old_line = %{test.txt}
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new_line = %{<img src=x onerror=alert(document.domain)>}
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marked_old_line, marked_new_line = mark_inline_diffs(old_line, new_line)
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expect(marked_old_line).to eq(%q{<span class="idiff left right deletion">test.txt</span>})
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expect(marked_old_line).to be_html_safe
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expect(marked_new_line).to eq(%q{<span class="idiff left right addition"><img src=x onerror=alert(document.domain)></span>})
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expect(marked_new_line).to be_html_safe
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end
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it 'sanitizes the entire line, not just the changes' do
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old_line = %{<img src=x onerror=alert(document.domain)>}
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new_line = %{<img src=y onerror=alert(document.domain)>}
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marked_old_line, marked_new_line = mark_inline_diffs(old_line, new_line)
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expect(marked_old_line).to eq(%q{<img src=<span class="idiff left right deletion">x</span> onerror=alert(document.domain)>})
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expect(marked_old_line).to be_html_safe
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expect(marked_new_line).to eq(%q{<img src=<span class="idiff left right addition">y</span> onerror=alert(document.domain)>})
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expect(marked_new_line).to be_html_safe
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end
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end
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end
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describe '#parallel_diff_discussions' do
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let(:discussion) { { 'abc_3_3' => 'comment' } }
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let(:diff_file) { double(line_code: 'abc_3_3') }
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before do
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helper.instance_variable_set(:@grouped_diff_discussions, discussion)
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end
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it 'does not put comments on nonewline lines' do
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left = Gitlab::Diff::Line.new('\\nonewline', 'old-nonewline', 3, 3, 3)
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right = Gitlab::Diff::Line.new('\\nonewline', 'new-nonewline', 3, 3, 3)
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result = helper.parallel_diff_discussions(left, right, diff_file)
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expect(result).to eq([nil, nil])
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end
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it 'puts comments on added lines' do
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left = Gitlab::Diff::Line.new('\\nonewline', 'old-nonewline', 3, 3, 3)
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right = Gitlab::Diff::Line.new('new line', 'new', 3, 3, 3)
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result = helper.parallel_diff_discussions(left, right, diff_file)
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expect(result).to eq([nil, 'comment'])
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end
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it 'puts comments on unchanged lines' do
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left = Gitlab::Diff::Line.new('unchanged line', nil, 3, 3, 3)
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right = Gitlab::Diff::Line.new('unchanged line', nil, 3, 3, 3)
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result = helper.parallel_diff_discussions(left, right, diff_file)
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expect(result).to eq(['comment', nil])
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end
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end
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describe "#diff_match_line" do
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let(:old_pos) { 40 }
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let(:new_pos) { 50 }
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let(:text) { 'some_text' }
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it "generates foldable top match line for inline view with empty text by default" do
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output = diff_match_line old_pos, new_pos
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expect(output).to be_html_safe
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expect(output).to have_css "td:nth-child(1):not(.js-unfold-bottom).diff-line-num.unfold.js-unfold.old_line[data-linenumber='#{old_pos}']", text: '...'
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expect(output).to have_css "td:nth-child(2):not(.js-unfold-bottom).diff-line-num.unfold.js-unfold.new_line[data-linenumber='#{new_pos}']", text: '...'
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expect(output).to have_css 'td:nth-child(3):not(.parallel).line_content.match', text: ''
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end
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it "allows to define text and bottom option" do
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output = diff_match_line old_pos, new_pos, text: text, bottom: true
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expect(output).to be_html_safe
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expect(output).to have_css "td:nth-child(1).diff-line-num.unfold.js-unfold.js-unfold-bottom.old_line[data-linenumber='#{old_pos}']", text: '...'
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expect(output).to have_css "td:nth-child(2).diff-line-num.unfold.js-unfold.js-unfold-bottom.new_line[data-linenumber='#{new_pos}']", text: '...'
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expect(output).to have_css 'td:nth-child(3):not(.parallel).line_content.match', text: text
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end
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it "generates match line for parallel view" do
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output = diff_match_line old_pos, new_pos, text: text, view: :parallel
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expect(output).to be_html_safe
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expect(output).to have_css "td:nth-child(1):not(.js-unfold-bottom).diff-line-num.unfold.js-unfold.old_line[data-linenumber='#{old_pos}']", text: '...'
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expect(output).to have_css 'td:nth-child(2).line_content.match.parallel', text: text
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expect(output).to have_css "td:nth-child(3):not(.js-unfold-bottom).diff-line-num.unfold.js-unfold.new_line[data-linenumber='#{new_pos}']", text: '...'
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expect(output).to have_css 'td:nth-child(4).line_content.match.parallel', text: text
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end
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it "allows to generate only left match line for parallel view" do
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output = diff_match_line old_pos, nil, text: text, view: :parallel
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expect(output).to be_html_safe
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expect(output).to have_css "td:nth-child(1):not(.js-unfold-bottom).diff-line-num.unfold.js-unfold.old_line[data-linenumber='#{old_pos}']", text: '...'
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expect(output).to have_css 'td:nth-child(2).line_content.match.parallel', text: text
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expect(output).not_to have_css 'td:nth-child(3)'
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end
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it "allows to generate only right match line for parallel view" do
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output = diff_match_line nil, new_pos, text: text, view: :parallel
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expect(output).to be_html_safe
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expect(output).to have_css "td:nth-child(1):not(.js-unfold-bottom).diff-line-num.unfold.js-unfold.new_line[data-linenumber='#{new_pos}']", text: '...'
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expect(output).to have_css 'td:nth-child(2).line_content.match.parallel', text: text
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expect(output).not_to have_css 'td:nth-child(3)'
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end
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end
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describe '#render_overflow_warning?' do
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using RSpec::Parameterized::TableSyntax
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let(:diffs_collection) { instance_double(Gitlab::Diff::FileCollection::MergeRequestDiff, raw_diff_files: diff_files, overflow?: false) }
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let(:diff_files) { Gitlab::Git::DiffCollection.new(files) }
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let(:safe_file) { { too_large: false, diff: '' } }
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let(:large_file) { { too_large: true, diff: '' } }
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let(:files) { [safe_file, safe_file] }
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context 'when no limits are hit' do
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before do
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allow(diff_files).to receive(:overflow_max_bytes?).and_return(false)
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allow(diff_files).to receive(:overflow_max_files?).and_return(false)
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allow(diff_files).to receive(:overflow_max_lines?).and_return(false)
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allow(diff_files).to receive(:collapsed_safe_bytes?).and_return(false)
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allow(diff_files).to receive(:collapsed_safe_files?).and_return(false)
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allow(diff_files).to receive(:collapsed_safe_lines?).and_return(false)
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end
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it 'returns false and does not log any overflow events' do
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expect(Gitlab::Metrics).not_to receive(:add_event).with(:diffs_overflow_collection_limits)
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expect(Gitlab::Metrics).not_to receive(:add_event).with(:diffs_overflow_single_file_limits)
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expect(Gitlab::Metrics).not_to receive(:add_event).with(:diffs_overflow_max_bytes_limits)
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expect(Gitlab::Metrics).not_to receive(:add_event).with(:diffs_overflow_max_files_limits)
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expect(Gitlab::Metrics).not_to receive(:add_event).with(:diffs_overflow_max_lines_limits)
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expect(Gitlab::Metrics).not_to receive(:add_event).with(:diffs_overflow_collapsed_bytes_limits)
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expect(Gitlab::Metrics).not_to receive(:add_event).with(:diffs_overflow_collapsed_files_limits)
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expect(Gitlab::Metrics).not_to receive(:add_event).with(:diffs_overflow_collapsed_lines_limits)
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expect(render_overflow_warning?(diffs_collection)).to be false
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end
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end
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where(:overflow_method, :event_name) do
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:overflow_max_bytes? | :diffs_overflow_max_bytes_limits
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:overflow_max_files? | :diffs_overflow_max_files_limits
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:overflow_max_lines? | :diffs_overflow_max_lines_limits
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:collapsed_safe_bytes? | :diffs_overflow_collapsed_bytes_limits
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:collapsed_safe_files? | :diffs_overflow_collapsed_files_limits
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:collapsed_safe_lines? | :diffs_overflow_collapsed_lines_limits
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end
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with_them do
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it 'returns false and only logs the correct collection overflow event' do
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allow(diff_files).to receive(overflow_method).and_return(true)
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expect(Gitlab::Metrics).to receive(:add_event).with(event_name).once
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expect(render_overflow_warning?(diffs_collection)).to be false
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end
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end
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context 'when the file collection has an overflow' do
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before do
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allow(diffs_collection).to receive(:overflow?).and_return(true)
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end
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it 'returns true and only logs all the correct collection overflow event' do
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expect(Gitlab::Metrics).to receive(:add_event).with(:diffs_overflow_collection_limits).once
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expect(render_overflow_warning?(diffs_collection)).to be true
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end
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end
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context 'when two individual files are too big' do
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let(:files) { [safe_file, large_file, large_file] }
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it 'returns false and only logs single file overflow events' do
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expect(Gitlab::Metrics).to receive(:add_event).with(:diffs_overflow_single_file_limits).exactly(:once)
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expect(Gitlab::Metrics).not_to receive(:add_event).with(:diffs_overflow_collection_limits)
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expect(render_overflow_warning?(diffs_collection)).to be false
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end
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end
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end
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describe '#diff_file_html_data' do
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let(:project) { build(:project) }
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let(:path) { 'path/to/file' }
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let(:sha) { '1234567890' }
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subject do
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helper.diff_file_html_data(project, path, sha)
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end
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it 'returns data for project files' do
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expect(subject).to include(blob_diff_path: helper.project_blob_diff_path(project, "#{sha}/#{path}"))
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end
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end
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describe '#diff_file_path_text' do
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it 'returns full path by default' do
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expect(diff_file_path_text(diff_file)).to eq(diff_file.new_path)
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end
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it 'returns truncated path' do
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expect(diff_file_path_text(diff_file, max: 10)).to eq("...open.rb")
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end
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end
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describe "#collapsed_diff_url" do
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let(:params) do
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{
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controller: "projects/commit",
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action: "show",
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namespace_id: "foo",
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project_id: "bar",
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id: commit.sha
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}
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end
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subject { helper.collapsed_diff_url(diff_file) }
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it "returns a valid URL" do
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allow(helper).to receive(:safe_params).and_return(params)
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expect(subject).to match(%r{foo/bar/-/commit/#{commit.sha}/diff_for_path})
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end
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end
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describe "#render_fork_suggestion" do
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subject { helper.render_fork_suggestion }
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before do
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allow(helper).to receive(:current_user).and_return(current_user)
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end
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context "user signed in" do
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let(:current_user) { build(:user) }
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it "renders the partial" do
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expect(helper).to receive(:render).with(partial: "projects/fork_suggestion").exactly(:once)
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5.times { subject }
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end
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end
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context "guest" do
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let(:current_user) { nil }
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it { is_expected.to be_nil }
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end
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end
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end
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