🧪 test: Allow CommonJS tests to run.

Author: make-github-pseudonymous-again

src/index.js

@@ -6,3 +6,9 @@ export {default as SingleElementDeque} from './implementation/SingleElementDeque
 export {default as UnboundedDeque} from './implementation/UnboundedDeque.js';
 export {default as _deque} from './_deque.js';
 export {default as deque} from './deque.js';
+
+export {
+	IndexError,
+	ValueError,
+	NotImplementedError,
+} from '@failure-abstraction/error';

test/src/_fixtures.js

@@ -0,0 +1,3 @@
+import * as mod from '#module';
+
+export const {IndexError, ValueError, NotImplementedError} = mod.default ?? mod;

test/src/deque.js

@@ -1,15 +1,12 @@
 import test from 'ava';
 
-import {
-	IndexError,
-	ValueError,
-	NotImplementedError,
-} from '@failure-abstraction/error';
 import {_chain as c} from '@iterable-iterator/chain';
 import {list as l} from '@iterable-iterator/list';
 import {map as m} from '@iterable-iterator/map';
 import {range as r} from '@iterable-iterator/range';
 
+import {IndexError, ValueError, NotImplementedError} from './_fixtures.js';
+
 import {deque, Deque, SingleElementDeque, EmptyDeque} from '#module';
 
 test('Deque base class', (t) => {