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# Enforces unbound methods are called with their expected scope (`unbound-method`)
## Rule Details
This rule extends the base [`@typescript-eslint/unbound-method`][original-rule]
rule, meaning you must depend on `@typescript-eslint/eslint-plugin` for it to
work. It adds support for understanding when it's ok to pass an unbound method
to `expect` calls.
See the [`@typescript-eslint` documentation][original-rule] for more details on
the `unbound-method` rule.
Note that while this rule requires type information to work, it will fail
silently when not available allowing you to safely enable it on projects that
are not using TypeScript.
## How to use
```json5
{
parser: '@typescript-eslint/parser',
parserOptions: {
project: 'tsconfig.json',
ecmaVersion: 2020,
sourceType: 'module',
},
overrides: [
{
files: ['test/**'],
plugins: ['jest'],
rules: {
// you should turn the original rule off *only* for test files
'@typescript-eslint/unbound-method': 'off',
'jest/unbound-method': 'error',
},
},
],
rules: {
'@typescript-eslint/unbound-method': 'error',
},
}
```
This rule should be applied to your test files in place of the original rule,
which should be applied to the rest of your codebase.
## Options
See [`@typescript-eslint/unbound-method`][original-rule] options.
<sup>Taken with ❤ [from `@typescript-eslint` core][original-rule]</sup>
[original-rule]:
https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/unbound-method.md