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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Backup::Dump::Postgres, feature_category: :backup_restore do
let(:pg_database) { 'gitlabhq_test' }
let(:pg_dump) { ::Gitlab::Backup::Cli::Utils::PgDump.new(database_name: pg_database) }
let(:default_compression_cmd) { 'gzip -c -1' }
subject(:postgres) { described_class.new }
describe '#compress_cmd' do
it 'returns default compression command' do
expect(postgres.compress_cmd).to eq(default_compression_cmd)
end
end
describe '#dump' do
let(:pipes) { IO.pipe }
let(:destination_dir) { Dir.mktmpdir }
let(:dump_file_name) { File.join(destination_dir, 'output.gz') }
before do
allow(IO).to receive(:pipe).and_return(pipes)
end
after do
FileUtils.remove_entry destination_dir
end
context 'with default compression method' do
it 'creates a dump file' do
postgres.dump(dump_file_name, pg_dump)
expect(File.exist?(dump_file_name)).to eq(true)
end
it 'default compression command is used' do
compressor_pid = spawn(default_compression_cmd, in: pipes[0], out: [dump_file_name, 'w', 0o600])
expect(postgres).to receive(:spawn).with(
default_compression_cmd,
in: pipes.first,
out: [dump_file_name, 'w', 0o600]).and_return(compressor_pid)
postgres.dump(dump_file_name, pg_dump)
expect(File.exist?(dump_file_name)).to eq(true)
end
end
context 'when COMPRESS_CMD is set to tee' do
let(:tee_pid) { spawn('tee', in: pipes[0], out: [dump_file_name, 'w', 0o600]) }
before do
stub_env('COMPRESS_CMD', 'tee')
end
it 'creates a dump file' do
postgres.dump(dump_file_name, pg_dump)
expect(File.exist?(dump_file_name)).to eq(true)
end
it 'passes through tee instead of gzip' do
custom_compression_command = 'tee'
compressor_pid = spawn(custom_compression_command, in: pipes[0], out: [dump_file_name, 'w', 0o600])
expect(postgres).to receive(:spawn).with(
custom_compression_command,
in: pipes.first,
out: [dump_file_name, 'w', 0o600]).and_return(compressor_pid)
expect do
postgres.dump(dump_file_name, pg_dump)
end.to output(/Using custom COMPRESS_CMD 'tee'/).to_stdout
expect(File.exist?(dump_file_name)).to eq(true)
end
end
end
end
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