function assert(condition: unknown, message = "assertion failed"): void { if (!condition) throw new Error(message); } import { renderToStaticMarkup } from "react-dom/server"; import SelectionList, { SelectionListItem } from "../src/components/SelectionList"; import { PlatformLanguageProvider } from "../src/i18n/LanguageContext"; function noop() {} const markup = renderToStaticMarkup( Primary content Supporting content Disabled content ); assert(markup.includes('role="listbox"'), "the root exposes listbox semantics"); assert(markup.includes('class="selection-list domain-list"'), "root caller classes are preserved"); assert(markup.includes('data-source="inbox"'), "root native properties pass through"); assert(markup.includes('aria-label="Notifications"'), "the accessible label is translated"); assert(markup.includes('role="option"'), "items expose option semantics"); assert(markup.includes('aria-selected="true"'), "selected state is exposed accessibly"); assert(markup.includes('class="selection-list-item is-selected domain-row"'), "selected and domain classes are composed"); assert(markup.includes('draggable="true"'), "native draggable properties pass through"); assert(markup.includes('data-record-id="record-1"'), "native data properties pass through"); assert(markup.includes("Primary contentSupporting content"), "React node content is preserved"); assert(markup.includes('type="button"'), "items default to non-submitting buttons"); assert(markup.includes('aria-selected="false"'), "unselected state is exposed accessibly"); assert(markup.includes('aria-disabled="true"'), "disabled state is exposed accessibly"); assert(markup.includes('disabled=""'), "disabled state uses the native button contract"); const nativeLabelMarkup = renderToStaticMarkup( Content ); assert(nativeLabelMarkup.includes('aria-label="Already translated"'), "native accessible labels pass through unchanged");