Remove broken git storage for testing

Broken storage used to be used to test situations where the Git storage
wasn't being reached. These days we can just mock the Gitaly response.

But given the broken storage is removed now, Gitaly can take over
control of the storage being reachable. If it's not, Gitaly won't boot.
That's nice for situations where a disk wasn't mounted for instance.

Gitaly MR: https://gitlab.com/gitlab-org/gitaly/merge_requests/675

config/gitlab.yml.example

@@ -772,9 +772,6 @@ test:
       default:
         path: tmp/tests/repositories/
         gitaly_address: unix:tmp/tests/gitaly/gitaly.socket
-      broken:
-        path: tmp/tests/non-existent-repositories
-        gitaly_address: unix:tmp/tests/gitaly/gitaly.socket
 
   gitaly:
     client_path: tmp/tests/gitaly

lib/gitlab/setup_helper.rb

@@ -32,7 +32,10 @@ module Gitlab
         end
 
         if Rails.env.test?
-          storages << { name: 'test_second_storage', path: Rails.root.join('tmp', 'tests', 'second_storage').to_s }
+          storage_path = Rails.root.join('tmp', 'tests', 'second_storage').to_s
+
+          FileUtils.mkdir(storage_path) unless File.exist?(storage_path)
+          storages << { name: 'test_second_storage', path: storage_path }
         end
 
         config = { socket_path: address.sub(/\Aunix:/, ''), storage: storages }

spec/lib/gitaly/server_spec.rb

@@ -26,9 +26,7 @@ describe Gitaly::Server do
       end
     end
 
-    context 'when the storage is not readable' do
-      let(:server) { described_class.new('broken') }
-
+    context 'when the storage is not readable', :broken_storage do
       it 'returns false' do
         expect(server).not_to be_readable
       end
@@ -42,9 +40,7 @@ describe Gitaly::Server do
       end
     end
 
-    context 'when the storage is not writeable' do
-      let(:server) { described_class.new('broken') }
-
+    context 'when the storage is not writeable', :broken_storage do
       it 'returns false' do
         expect(server).not_to be_writeable
       end

spec/support/helpers/test_env.rb

@@ -70,7 +70,6 @@ module TestEnv
 
   TMP_TEST_PATH = Rails.root.join('tmp', 'tests', '**')
   REPOS_STORAGE = 'default'.freeze
-  BROKEN_STORAGE = 'broken'.freeze
 
   # Test environment
   #
@@ -159,10 +158,6 @@ module TestEnv
       version: Gitlab::GitalyClient.expected_server_version,
       task: "gitlab:gitaly:install[#{gitaly_dir},#{repos_path}]") do
 
-      # Re-create config, to specify the broken storage path
-      storage_paths = { 'default' => repos_path, 'broken' => broken_path }
-      Gitlab::SetupHelper.create_gitaly_configuration(gitaly_dir, storage_paths, force: true)
-
       start_gitaly(gitaly_dir)
     end
   end
@@ -257,10 +252,6 @@ module TestEnv
     @repos_path ||= Gitlab.config.repositories.storages[REPOS_STORAGE].legacy_disk_path
   end
 
-  def broken_path
-    @broken_path ||= Gitlab.config.repositories.storages[BROKEN_STORAGE].legacy_disk_path
-  end
-
   def backup_path
     Gitlab.config.backup.path
   end

spec/support/stored_repositories.rb

 RSpec.configure do |config|
-  config.before(:all, :broken_storage) do
-    FileUtils.rm_rf Gitlab.config.repositories.storages.broken.legacy_disk_path
-  end
-
   config.before(:each, :broken_storage) do
     allow(Gitlab::GitalyClient).to receive(:call) do
       raise GRPC::Unavailable.new('Gitaly broken in this spec')

spec/workers/repository_check/batch_worker_spec.rb

@@ -51,7 +51,7 @@ describe RepositoryCheck::BatchWorker do
 
   it 'does nothing when shard is unhealthy' do
     shard_name = 'broken'
-    create(:project, created_at: 1.week.ago, repository_storage: shard_name)
+    create(:project, :broken_storage, created_at: 1.week.ago)
 
     expect(subject.perform(shard_name)).to eq(nil)
   end