Jest 中的“it"和“test"有什么区别? [英] What is the difference between 'it' and 'test' in Jest?

问题描述

我的测试组中有两个测试.一个测试使用it，另一个测试使用test.他们两个的工作方式似乎非常相似.它们有什么区别?

I have two tests in my test group. One of the tests use it and the other one uses test. Both of them seem to be working very similarly. What is the difference between them?

describe('updateAll', () => {
  it('no force', () => {
    return updateAll(TableName, ["fileName"], {compandId: "test"})
        .then(updatedItems => {
          let undefinedCount = 0;
          for (let item of updatedItems) {
            undefinedCount += item === undefined ? 1 : 0;
          }
          // console.log("result", result);
          expect(undefinedCount).toBe(updatedItems.length);
        })
  });

  test('force update', () => {
    return updateAll(TableName, ["fileName"], {compandId: "test"}, true)
        .then(updatedItems => {
          let undefinedCount = 0;
          for (let item of updatedItems) {
            undefinedCount += item === undefined ? 1 : 0;
          }
          // console.log("result", result);
          expect(undefinedCount).toBe(0);
        })
  });
});

---

似乎test在Jest的官方API中，但 it 不是.

推荐答案

Jest docs 状态 it 是 test.因此，从功能的角度来看，它们完全相同.它们的存在都是为了能够从您的测试中生成可读的英语句子.

The Jest docs state it is an alias of test. So they are exactly the same from a functional point of view. They exist both to enable to make a readable English sentence from your test.

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