Function assertElements

test/browser/virtualization.test.ts:38–48

(
  elements: Element[],
  attribute: string,
  count: number,
  startIdx: number,
  endIdx: number
)

}

function assertElements(
  elements: Element[],
  attribute: string,
  count: number,
  startIdx: number,
  endIdx: number
) {
  expect(elements).toHaveLength(count);
  expect(elements[0]).toHaveAttribute(attribute, String(startIdx));
  expect(elements[elements.length - 1]).toHaveAttribute(attribute, String(endIdx));
}

function assertIndexes(
  cells: Element[],