grafana/public/app/core/specs/flatten.test.ts

import flatten from 'app/core/utils/flatten';

describe('flatten', () => {
  it('should return flatten object', () => {
    const flattened = flatten({
      level1: 'level1-value',
      deeper: {
        level2: 'level2-value',
        deeper: {
          level3: 'level3-value',
        },
      },
    });

    expect(flattened['level1']).toBe('level1-value');
    expect(flattened['deeper.level2']).toBe('level2-value');
    expect(flattened['deeper.deeper.level3']).toBe('level3-value');
  });
});