eslint-plugin-mocha
ESLint rules for mocha.
Install and configure
This plugin requires ESLint 9.0.0 or later.
npm install --save-dev eslint-plugin-mocha
Configuration via eslint.config.js
To use this plugin with eslint flat configuration format:
import mochaPlugin from "eslint-plugin-mocha";
export default [
mochaPlugin.configs.recommended, // or `mochaPlugin.configs.all` to enable all
// ... Your configurations here
];
Plugin Settings
This plugin supports the following settings, which are used by multiple rules:
additionalCustomNames: This allows rules to check additional function names when looking for suites or test cases. This might be used with a custom Mocha extension, such asember-mochaormocha-each.Example:
{ "rules": { "mocha/no-pending-tests": "error", "mocha/no-exclusive-tests": "error" }, "settings": { "mocha/additionalCustomNames": [ { "name": "describeModule", "type": "suite", "interface": "BDD" }, { "name": "testModule", "type": "testCase", "interface": "TDD" } ] } }The
nameproperty can be in any of the following forms:A plain name e.g.
describeModule, which allows:describeModule("example", function() { ... });A dotted name, e.g.
describe.modifier, which allows:describe.modifier("example", function() { ... });A name with parentheses, e.g.
forEach().describe, which allows:forEach([ 1, 2, 3 ]) .describe("example", function(n) { ... });Any combination of the above, e.g.
forEach().describeModule.modifier, which allows:forEach([ 1, 2, 3 ]) .describeModule.modifier("example", function(n) { ... });
interface: This allows to select eitherTDD,BDD(default) orexports. When usingexportsmocha variables are resolved from namedimportstatements instead of global variables.
Rules
Configurations enabled in.
Configurations set to warn in.
Configurations disabled in.
Set in the recommended configuration.
Automatically fixable by the --fix CLI option.
| Name | Description | ||||
|---|---|---|---|---|---|
| consistent-interface | Enforces consistent use of mocha interfaces | ||||
| consistent-spacing-between-blocks | Require consistent spacing between blocks | ||||
| handle-done-callback | Enforces handling of callbacks for async tests | ||||
| max-top-level-suites | Enforce the number of top-level suites in a single file | ||||
| no-async-suite | Disallow async functions passed to a suite | ||||
| no-empty-title | Disallow empty test descriptions | ||||
| no-exclusive-tests | Disallow exclusive tests | ||||
| no-exports | Disallow exports from test files | ||||
| no-global-tests | Disallow global tests | ||||
| no-hooks | Disallow hooks | ||||
| no-hooks-for-single-case | Disallow hooks for a single test or test suite | ||||
| no-identical-title | Disallow identical titles | ||||
| no-mocha-arrows | Disallow arrow functions as arguments to mocha functions | ||||
| no-nested-tests | Disallow tests to be nested within other tests | ||||
| no-pending-tests | Disallow pending tests | ||||
| no-return-and-callback | Disallow returning in a test or hook function that uses a callback | ||||
| no-return-from-async | Disallow returning from an async test or hook | ||||
| no-setup-in-describe | Disallow setup in describe blocks | ||||
| no-sibling-hooks | Disallow duplicate uses of a hook at the same level inside a suite | ||||
| no-synchronous-tests | Disallow synchronous tests | ||||
| no-top-level-hooks | Disallow top-level hooks | ||||
| prefer-arrow-callback | Require using arrow functions for callbacks | ||||
| valid-suite-title | Require suite descriptions to match a pre-configured regular expression | ||||
| valid-test-title | Require test descriptions to match a pre-configured regular expression |