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vitest/no-conditional-in-test Pedantic

作用

禁止在测试中使用条件语句。

为什么这不好?

测试中的条件语句会让测试更难阅读和理解。 每个测试函数最好只包含一个测试用例。

示例

以下是此规则的错误代码示例:

js
it("foo", () => {
  if (true) {
    doTheThing();
  }
});

it("bar", () => {
  switch (mode) {
    case "none":
      generateNone();
    case "single":
      generateOne();
    case "multiple":
      generateMany();
  }

  expect(fixtures.length).toBeGreaterThan(-1);
});

it("baz", async () => {
  const promiseValue = () => {
    return something instanceof Promise ? something : Promise.resolve(something);
  };

  await expect(promiseValue()).resolves.toBe(1);
});

以下是此规则的正确代码示例:

js
describe("my tests", () => {
  if (true) {
    it("foo", () => {
      doTheThing();
    });
  }
});

beforeEach(() => {
  switch (mode) {
    case "none":
      generateNone();
    case "single":
      generateOne();
    case "multiple":
      generateMany();
  }
});

it("bar", () => {
  expect(fixtures.length).toBeGreaterThan(-1);
});

const promiseValue = (something) => {
  return something instanceof Promise ? something : Promise.resolve(something);
};

it("baz", async () => {
  await expect(promiseValue()).resolves.toBe(1);
});

如何使用

To enable this rule using the config file or in the CLI, you can use:

json
{
  "plugins": ["vitest"],
  "rules": {
    "vitest/no-conditional-in-test": "error"
  }
}
ts
import { defineConfig } from "oxlint";

export default defineConfig({
  plugins: ["vitest"],
  rules: {
    "vitest/no-conditional-in-test": "error",
  },
});
bash
oxlint --deny vitest/no-conditional-in-test --vitest-plugin

版本

此规则添加于 v0.8.0。

参考资料