Function createMockFiber

package/src/utils/react-detection.test.ts:22–33

(
  name: string,
  parent?: MockFiber,
  options: { tag?: number } = {},
)

// Helper to create a mock fiber
function createMockFiber(
  name: string,
  parent?: MockFiber,
  options: { tag?: number } = {},
): MockFiber {
  return {
    tag: options.tag ?? 0, // FunctionComponent
    type: { name, displayName: name },
    elementType: { name, displayName: name },
    return: parent || null,
  };
}

// Helper to attach fiber to an element
function attachFiber(element: HTMLElement, fiber: unknown) {