add test

[handeyeco]

Summary:

Issue: LEMS-3800

Test plan:

[github-actions]

🗄️ Schema Change: No Changes ✅

[github-actions]

Size Change: +1 B (0%)

Total Size: 498 kB

Filename	Size	Change
packages/perseus-core/dist/es/index.js	25.6 kB	+1 B (0%)

ℹ️ View Unchanged

Filename	Size
packages/kas/dist/es/index.js	20.8 kB
packages/keypad-context/dist/es/index.js	1 kB
packages/kmath/dist/es/index.js	5.98 kB
packages/math-input/dist/es/index.js	98.3 kB
packages/math-input/dist/es/strings.js	1.61 kB
packages/perseus-core/dist/es/index.item-splitting.js	13.1 kB
packages/perseus-editor/dist/es/index.js	97.5 kB
packages/perseus-linter/dist/es/index.js	8.65 kB
packages/perseus-score/dist/es/index.js	9.3 kB
packages/perseus-utils/dist/es/index.js	403 B
packages/perseus/dist/es/index.js	200 kB
packages/perseus/dist/es/strings.js	7.78 kB
packages/pure-markdown/dist/es/index.js	1.39 kB
packages/simple-markdown/dist/es/index.js	6.72 kB

_{compressed-size-action}

[github-actions]

🛠️ Item Splitting: No Changes ✅