Function checkAction

packages/compiler/test/expression_parser/parser_spec.ts:1822–1827

(exp: string, expected?: string)

}

function checkAction(exp: string, expected?: string) {
  const ast = parseAction(exp);
  if (expected == null) expected = exp;
  expect(unparse(ast)).toEqual(expected);
  validate(ast);
}

function expectError(ast: {errors: ParseError[]}, message: string, errorCount?: number) {
  if (errorCount != null) {