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require "isolation/abstract_unit"
begin
require "pty"
rescue LoadError
end
module ApplicationTests
class DBConsoleTest < ActiveSupport::TestCase
include ActiveSupport::Testing::Isolation
def setup
build_app
end
def teardown
teardown_app
end
def test_use_value_defined_in_environment_file_in_database_yml
skip "PTY unavailable" unless available_pty?
Dir.chdir(app_path) do
app_file "config/database.yml", <<-YAML
development:
database: <%= Rails.application.config.database %>
adapter: sqlite3
pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
timeout: 5000
YAML
app_file "config/environments/development.rb", <<-RUBY
Rails.application.configure do
config.database = "db/development.sqlite3"
end
RUBY
end
master, slave = PTY.open
spawn_dbconsole(slave)
assert_output("sqlite>", master)
ensure
master.puts ".exit"
end
private
def spawn_dbconsole(fd)
Process.spawn("#{app_path}/bin/rails dbconsole", in: fd, out: fd, err: fd)
end
def assert_output(expected, io, timeout = 5)
timeout = Time.now + timeout
output = ""
until output.include?(expected) || Time.now > timeout
if IO.select([io], [], [], 0.1)
output << io.read(1)
end
end
assert_includes output, expected, "#{expected.inspect} expected, but got:\n\n#{output}"
end
def available_pty?
defined?(PTY) && PTY.respond_to?(:open)
end
end
end
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