Function IsNWidgetTreeClosed

src/tests/test_window_desc.cpp:68–76

* Test if a NWidgetTree is properly closed, meaning the number of container-type parts matches the number of * EndContainer() parts. * @param nwid_parts Span of nested widget parts. * @return True iff nested tree is properly closed. */

 * @return True iff nested tree is properly closed.
 */
static bool IsNWidgetTreeClosed(std::span<const NWidgetPart> nwid_parts)
{
	int depth = 0;
	for (const auto nwid : nwid_parts) {
		if (IsContainerWidgetType(nwid.type)) ++depth;
		if (nwid.type == WPT_ENDCONTAINER) --depth;
	}
	return depth == 0;
}

TEST_CASE("WindowDesc - NWidgetParts properly closed")
{