ReferenceError: test is not defined with Jest

ReferenceError: test is not defined with Jest

我正在尝试 运行 Jest 的最基本示例,但我似乎做不到。 按照此处的说明进行操作:https://jestjs.io/docs/en/getting-started.html

砰,引用错误。我在这里错过了什么?

这是我的控制台输出:

FAIL  ./sum.test.js
  ● Test suite failed to run
    ReferenceError: test is not defined
      1 | const sum = require('./sum');
      2 |
    > 3 | test('adds 1 + 2 to equal 3', () => {
        | ^
      4 |   expect(sum(1, 2)).toBe(3);
      5 | });
      at Object.<anonymous> (sum.test.js:3:1)
    Test Suites: 1 failed, 1 total
Tests:       0 total
Snapshots:   0 total
Time:        0.957 s
Ran all test suites.
(node:21384) ExperimentalWarning: The fs.promises API is experimental
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! test@1.0.0 test: `jest`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the test@1.0.0 test script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

似乎与此问题相关:https://github.com/facebook/jest/issues/9538

尝试将您的节点版本升级到至少 v10.14.2 或将 jest 降级到最多 v25.2.2。