Allow running backup against the test environment

gems/gitlab-backup-cli/lib/gitlab/backup/cli/source_context.rb

@@ -71,6 +71,11 @@ def upload_path
           # TODO: Use configuration solver
           File.join(Gitlab.config.uploads.storage_path, 'uploads')
         end
+
+        def env
+          @env ||= ActiveSupport::EnvironmentInquirer.new(
+            ENV["RAILS_ENV"].presence || ENV["RACK_ENV"].presence || "development")
+        end
       end
     end
   end

gems/gitlab-backup-cli/lib/gitlab/backup/cli/tasks/task.rb

@@ -24,6 +24,9 @@ def initialize(context:, options:)
           def backup!(backup_path, backup_id)
             backup_output = backup_path.join(destination_path)
 
+            # During test, we ensure storage exists so we can run against `RAILS_ENV=test` environment
+            FileUtils.mkdir_p(storage_path) if context.env.test? && respond_to?(:storage_path, true)
+
             target.dump(backup_output, backup_id)
           end
 

gems/gitlab-backup-cli/spec/support/helpers.rb

 # frozen_string_literal: true
 
-FakeContext = Struct.new(:gitlab_version, :backup_basedir, keyword_init: true)
+FakeContext = Struct.new(:gitlab_version, :backup_basedir, :env, keyword_init: true)
 
 def spec_path
   Pathname.new(__dir__).join('..').expand_path
@@ -15,5 +15,9 @@ def stub_env(var, return_value)
 end
 
 def build_fake_context
-  FakeContext.new(gitlab_version: '16.10', backup_basedir: temp_path.join('backups'))
+  FakeContext.new(
+    gitlab_version: '16.10',
+    backup_basedir: temp_path.join('backups'),
+    env: ActiveSupport::EnvironmentInquirer.new('test')
+  )
 end