discourse/spec/lib/backup_restore/meta_data_handler_spec.rb

105 lines
3.5 KiB
Ruby

# frozen_string_literal: true
require_relative "shared_context_for_backup_restore"
RSpec.describe BackupRestore::MetaDataHandler do
include_context "with shared backup restore context"
let!(:backup_filename) { "discourse-2019-11-18-143242-v20191108000414.tar.gz" }
def with_metadata_file(content)
Dir.mktmpdir do |directory|
if !content.nil?
path = File.join(directory, BackupRestore::MetaDataHandler::METADATA_FILE)
File.write(path, content)
end
yield(directory)
end
end
def validate_metadata(filename, tmp_directory)
BackupRestore::MetaDataHandler.new(logger, filename, tmp_directory).validate
end
describe "metadata file" do
it "extracts metadata from file when metadata file exists" do
metadata = '{"source":"discourse","version":20160329101122}'
with_metadata_file(metadata) do |dir|
expect(validate_metadata(backup_filename, dir)).to include(version: 20_160_329_101_122)
end
end
it "raises an exception when the metadata file contains invalid JSON" do
corrupt_metadata = '{"version":20160329101122'
with_metadata_file(corrupt_metadata) do |dir|
expect { validate_metadata(backup_filename, dir) }.to raise_error(
BackupRestore::MetaDataError,
)
end
end
it "raises an exception when the metadata file is empty" do
with_metadata_file("") do |dir|
expect { validate_metadata(backup_filename, dir) }.to raise_error(
BackupRestore::MetaDataError,
)
end
end
it "raises an exception when the metadata file contains an invalid version number" do
metadata = '{"source":"discourse","version":"1abcdefghijklm"}'
with_metadata_file(metadata) do |dir|
expect { validate_metadata(backup_filename, dir) }.to raise_error(
BackupRestore::MetaDataError,
)
end
end
it "raises an exception when the metadata file contains an empty version number" do
metadata = '{"source":"discourse","version":""}'
with_metadata_file(metadata) do |dir|
expect { validate_metadata(backup_filename, dir) }.to raise_error(
BackupRestore::MetaDataError,
)
end
end
end
describe "filename" do
it "extracts metadata from filename when metadata file does not exist" do
with_metadata_file(nil) do |dir|
expect(validate_metadata(backup_filename, dir)).to include(version: 20_191_108_000_414)
end
end
it "raises an exception when the filename contains no version number" do
filename = "discourse-2019-11-18-143242.tar.gz"
expect { validate_metadata(filename, nil) }.to raise_error(BackupRestore::MetaDataError)
end
it "raises an exception when the filename contains an invalid version number" do
filename = "discourse-2019-11-18-143242-v123456789.tar.gz"
expect { validate_metadata(filename, nil) }.to raise_error(BackupRestore::MetaDataError)
filename = "discourse-2019-11-18-143242-v1abcdefghijklm.tar.gz"
expect { validate_metadata(filename, nil) }.to raise_error(BackupRestore::MetaDataError)
end
end
it "raises an exception when the backup's version is newer than the current version" do
new_backup_filename = "discourse-2019-11-18-143242-v20191113193141.sql.gz"
BackupRestore.expects(:current_version).returns(20_191_025_005_204).once
expect { validate_metadata(new_backup_filename, nil) }.to raise_error(
BackupRestore::MigrationRequiredError,
)
end
end