Function generateData

src/cdk/tree/control/flat-tree-control.spec.ts:210–231

(
  dataLength: number,
  childLength: number,
  grandChildLength: number = 0,
)

}

function generateData(
  dataLength: number,
  childLength: number,
  grandChildLength: number = 0,
): TestData[] {
  let data = <any>[];
  let nextIndex = 0;
  for (let i = 0; i < dataLength; i++) {
    let children = <any>[];
    for (let j = 0; j < childLength; j++) {
      let grandChildren = <any>[];
      for (let k = 0; k < grandChildLength; k++) {
        grandChildren.push(new TestData(`a_${nextIndex}`, `b_${nextIndex}`, `c_${nextIndex++}`, 3));
      }
      children.push(
        new TestData(`a_${nextIndex}`, `b_${nextIndex}`, `c_${nextIndex++}`, 2, grandChildren),
      );
    }
    data.push(new TestData(`a_${nextIndex}`, `b_${nextIndex}`, `c_${nextIndex++}`, 1, children));
  }
  return data;
}

function flatten(nodes: TestData[], data: TestData[]) {
  for (let node of nodes) {