Function failure

src/keyboard/vim_test.js:126–131

(message, root)

  if (!a) throw failure("Expected " + a +  " to be truthy", is);
}
function failure(message, root) {
  var error = new Error(message);
  if (Error.captureStackTrace)
    Error.captureStackTrace(error, root);
  return error;
}

var Pos = CodeMirror.Pos;
CodeMirror.Vim.suppressErrorLogging = true;