from flask import template_rendered from contextlib import contextmanager @contextmanager def captured_templates(app): recorded = [] def record(sender, template, context, **extra): recorded.append((template, context)) template_rendered.connect(record, app) try: yield recorded finally: template_rendered.disconnect(record, app) class FakeLogger: def __init__(self): self.messages = [] self.extras = [] def log(self, _lvl, msg, *args, **kwargs): self._log(_lvl, msg, *args, **kwargs) def info(self, msg, *args, **kwargs): self._log("info", msg, *args, **kwargs) def warning(self, msg, *args, **kwargs): self._log("warning", msg, *args, **kwargs) def error(self, msg, *args, **kwargs): self._log("error", msg, *args, **kwargs) def _log(self, _lvl, msg, *args, **kwargs): self.messages.append(msg) if "extra" in kwargs: self.extras.append(kwargs["extra"])