Class CompiledServerHarness

test/test_sockets.py:159–187

class CompiledServerHarness:
  def __init__(self, filename, args, listen_port):
    self.process = None
    self.filename = filename
    self.listen_port = listen_port
    self.args = args or []

  def __enter__(self):
    # assuming this is only used for WebSocket tests at the moment, validate that
    # the ws module is installed
    global npm_checked
    if not npm_checked:
      child = run_process([*config.NODE_JS, '-e', 'require("ws");'], check=False)
      assert child.returncode == 0, '"ws" node module not found. Run "npm install" to obtain Node.js dev dependencies, or set environment variable EMTEST_SKIP_NODE_DEV_PACKAGES=1 to skip this test.'
      npm_checked = True

    # compile the server
    suffix = '.mjs' if '-sEXPORT_ES6' in self.args else '.js'
    proc = run_process([EMCC, '-Werror', test_file(self.filename), '-o', 'server' + suffix, f'-DSOCKK={self.listen_port}', *self.args])
    print('Socket server build: out:', proc.stdout or '', '/ err:', proc.stderr or '')

    self.process = Popen([*config.NODE_JS, 'server' + suffix])
    return self

  def __exit__(self, *args, **kwargs):
    clean_process(self.process)

    # always run these tests last
    # make sure to use different ports in each one because it takes a while for the processes to be cleaned up


# Executes a native executable server process