212 lines
7.4 KiB
Ruby
212 lines
7.4 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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describe MergeRequests::SquashService do
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include GitHelpers
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let(:service) { described_class.new(project, user, { merge_request: merge_request }) }
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let(:user) { project.owner }
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let(:project) { create(:project, :repository) }
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let(:repository) { project.repository.raw }
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let(:log_error) { "Failed to squash merge request #{merge_request.to_reference(full: true)}:" }
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let(:squash_dir_path) do
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File.join(Gitlab.config.shared.path, 'tmp/squash', repository.gl_repository, merge_request.id.to_s)
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end
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let(:merge_request_with_one_commit) do
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create(:merge_request,
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source_branch: 'feature', source_project: project,
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target_branch: 'master', target_project: project)
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end
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let(:merge_request_with_only_new_files) do
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create(:merge_request,
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source_branch: 'video', source_project: project,
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target_branch: 'master', target_project: project)
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end
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let(:merge_request_with_large_files) do
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create(:merge_request,
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source_branch: 'squash-large-files', source_project: project,
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target_branch: 'master', target_project: project)
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end
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shared_examples 'the squash succeeds' do
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it 'returns the squashed commit SHA' do
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result = service.execute
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expect(result).to match(status: :success, squash_sha: a_string_matching(/\h{40}/))
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expect(result[:squash_sha]).not_to eq(merge_request.diff_head_sha)
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end
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it 'cleans up the temporary directory' do
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service.execute
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expect(File.exist?(squash_dir_path)).to be(false)
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end
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it 'does not keep the branch push event' do
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expect { service.execute }.not_to change { Event.count }
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end
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context 'when there is a single commit in the merge request' do
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before do
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expect(merge_request).to receive(:commits_count).at_least(:once).and_return(1)
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end
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it 'will skip performing the squash, as the outcome would be the same' do
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expect(merge_request.target_project.repository).not_to receive(:squash)
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service.execute
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end
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it 'will still perform the squash when a custom squash commit message has been provided' do
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service = described_class.new(project, user, { merge_request: merge_request, squash_commit_message: 'A custom commit message' })
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expect(merge_request.target_project.repository).to receive(:squash).and_return('sha')
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service.execute
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end
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end
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context 'the squashed commit' do
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let(:squash_sha) { service.execute[:squash_sha] }
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let(:squash_commit) { project.repository.commit(squash_sha) }
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it 'copies the author info from the merge request' do
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expect(squash_commit.author_name).to eq(merge_request.author.name)
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expect(squash_commit.author_email).to eq(merge_request.author.email)
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end
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it 'sets the current user as the committer' do
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expect(squash_commit.committer_name).to eq(user.name.chomp('.'))
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expect(squash_commit.committer_email).to eq(user.email)
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end
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it 'has the same diff as the merge request, but a different SHA' do
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rugged = rugged_repo(project.repository)
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mr_diff = rugged.diff(merge_request.diff_base_sha, merge_request.diff_head_sha)
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squash_diff = rugged.diff(merge_request.diff_start_sha, squash_sha)
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expect(squash_diff.patch.length).to eq(mr_diff.patch.length)
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expect(squash_commit.sha).not_to eq(merge_request.diff_head_sha)
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end
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it 'has a default squash commit message if no message was provided' do
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expect(squash_commit.message.chomp).to eq(merge_request.default_squash_commit_message.chomp)
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end
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context 'if a message was provided' do
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let(:service) { described_class.new(project, user, { merge_request: merge_request, squash_commit_message: message }) }
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let(:message) { 'My custom message' }
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let(:squash_sha) { service.execute[:squash_sha] }
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it 'has the same message as the message provided' do
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expect(squash_commit.message.chomp).to eq(message)
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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 '#execute' do
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context 'when there is only one commit in the merge request' do
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let(:merge_request) { merge_request_with_one_commit }
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it 'returns that commit SHA' do
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result = service.execute
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expect(result).to match(status: :success, squash_sha: merge_request.diff_head_sha)
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end
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it 'does not perform any git actions' do
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expect(repository).not_to receive(:popen)
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service.execute
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end
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end
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context 'when squashing only new files' do
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let(:merge_request) { merge_request_with_only_new_files }
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include_examples 'the squash succeeds'
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end
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context 'when squashing with files too large to display' do
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let(:merge_request) { merge_request_with_large_files }
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include_examples 'the squash succeeds'
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end
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context 'git errors' do
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let(:merge_request) { merge_request_with_only_new_files }
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let(:error) { 'A test error' }
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context 'with an error in Gitaly UserSquash RPC' do
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before do
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allow(repository.gitaly_operation_client).to receive(:user_squash)
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.and_raise(Gitlab::Git::Repository::GitError, error)
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end
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it 'logs the error' do
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expect(service).to receive(:log_error).with(exception: an_instance_of(Gitlab::Git::Repository::GitError), message: 'Failed to squash merge request')
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service.execute
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end
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it 'returns an error' do
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expect(service.execute).to match(status: :error, message: a_string_including('squash'))
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end
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end
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context 'with an error in squash in progress check' do
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before do
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allow(repository).to receive(:squash_in_progress?)
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.and_raise(Gitlab::Git::Repository::GitError, error)
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end
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it 'logs the stage and output' do
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expect(service).to receive(:log_error).with(exception: an_instance_of(Gitlab::Git::Repository::GitError), message: 'Failed to check squash in progress')
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service.execute
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end
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it 'returns an error' do
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expect(service.execute).to match(status: :error, message: 'An error occurred while checking whether another squash is in progress.')
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end
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end
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end
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context 'when any other exception is thrown' do
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let(:merge_request) { merge_request_with_only_new_files }
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let(:merge_request_ref) { merge_request.to_reference(full: true) }
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let(:exception) { RuntimeError.new('A test error') }
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before do
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allow(merge_request.target_project.repository).to receive(:squash).and_raise(exception)
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end
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it 'logs the error' do
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expect(service).to receive(:log_error).with(exception: exception, message: 'Failed to squash merge request').and_call_original
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expect(Gitlab::ErrorTracking).to receive(:track_exception).with(exception,
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class: described_class.to_s,
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merge_request: merge_request_ref,
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merge_request_id: merge_request.id,
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message: 'Failed to squash merge request',
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save_message_on_model: false).and_call_original
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service.execute
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end
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it 'returns an error' do
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expect(service.execute).to match(status: :error, message: a_string_including('squash'))
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end
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it 'cleans up the temporary directory' do
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service.execute
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expect(File.exist?(squash_dir_path)).to be(false)
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end
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end
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end
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end
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