jest/prefer-toStrictEqual

ESLint plugin / jest/prefer-toStrictEqual

Requires “toStrictEqual” matcher instead of “toBe” for non-primitive argument types.

module.exports = {
  plugins: ["misc"],
  rules: {
    "misc/jest/prefer-toStrictEqual": "error"
  }
};

Examples of incorrect code

const x = {};
expect(y).toStrictEqual(x);

Examples of correct code

const x = 1;
expect(y).toStrictEqual(x);