🧪 test: Do not pull source in fixtures.

Author: make-github-pseudonymous-again

test/src/_fixtures.js

@@ -4,8 +4,6 @@ import {reversed} from '@iterable-iterator/reversed';
 
 import {Measures} from '@functional-abstraction/measure';
 
-import {empty} from '../../src/index.js';
-
 export const ABSTRACT_COUNTER = Measures.COUNTER;
 
 export const FAST_COUNTER = {
@@ -45,14 +43,12 @@ export const fromLeftToString = (measure, iterable) =>
 export const fromRightToString = (measure, iterable) =>
 	`fromRight(${measureToString(measure)}, ${iterableToString(iterable)})`;
 
-export const fromLeft = (M, iterable) => {
-	let tree = empty(M);
+export const fromLeft = (tree, iterable) => {
 	for (const x of iterable) tree = tree.push(x);
 	return tree;
 };
 
-export const fromRight = (M, iterable) => {
-	let tree = empty(M);
+export const fromRight = (tree, iterable) => {
 	for (const x of reversed(iterable)) tree = tree.cons(x);
 	return tree;
 };

test/src/regression/digit/nodes/generated.js

@@ -11,9 +11,11 @@ import {
 	fromRightToString as fr,
 } from '../../../_fixtures.js';
 
+import {empty} from '../../../../../src/index.js';
+
 const flfr = (t, M, A, B) => {
-	const left = fromLeft(M, A);
-	const right = fromRight(M, B);
+	const left = fromLeft(empty(M), A);
+	const right = fromRight(empty(M), B);
 	const tree = left.concat(right);
 	const expected = Array.from(A).concat(Array.from(B));
 	t.is(tree.measure(), expected.length);
@@ -23,8 +25,8 @@ const flfr = (t, M, A, B) => {
 flfr.title = (title, M, A, B) => title ?? `${fl(M, A)}.concat(${fr(M, B)})`;
 
 const flifrt = (t, M, A, B) => {
-	const left = fromLeft(M, A).init();
-	const right = fromRight(M, B).tail();
+	const left = fromLeft(empty(M), A).init();
+	const right = fromRight(empty(M), B).tail();
 	const tree = left.concat(right);
 	const expected = Array.from(A).slice(0, -1).concat(Array.from(B).slice(1));
 	t.is(tree.measure(), expected.length);