@angular-devkit/schematics-cli/blank/schematic-files/src/__name@dasherize__/index_spec.ts

import { Tree } from '@angular-devkit/schematics';
import { SchematicTestRunner } from '@angular-devkit/schematics/testing';
import * as path from 'path';

const collectionPath = path.join(__dirname, '../collection.json');

describe('<%= dasherize(name) %>', () => {
  it('works', async () => {
    const runner = new SchematicTestRunner('schematics', collectionPath);
    const tree = await runner
      .runSchematicAsync('<%= dasherize(name) %>', {}, Tree.empty())
      .toPromise();

    expect(tree.files).toEqual([]);
  });
});