securityos/node_modules/eslint-plugin-jest/docs/rules/prefer-to-have-length.md

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# Suggest using `toHaveLength()` (`prefer-to-have-length`)
💼 This rule is enabled in the 🎨 `style`
[config](https://github.com/jest-community/eslint-plugin-jest/blob/main/README.md#shareable-configurations).
🔧 This rule is automatically fixable by the
[`--fix` CLI option](https://eslint.org/docs/latest/user-guide/command-line-interface#--fix).
<!-- end auto-generated rule header -->
In order to have a better failure message, `toHaveLength()` should be used upon
asserting expectations on objects length property.
## Rule details
This rule triggers a warning if `toBe()`, `toEqual()` or `toStrictEqual()` is
used to assert objects length property.
```js
expect(files.length).toBe(1);
```
This rule is enabled by default.
The following patterns are considered warnings:
```js
expect(files.length).toBe(1);
expect(files.length).toEqual(1);
expect(files.length).toStrictEqual(1);
```
The following pattern is not warning:
```js
expect(files).toHaveLength(1);
```