unflatten object with number as key replaces object with an array of n number length about flat HOT 1 OPEN

// Define `window` to fake browser env
global.window = {};
const {describe, it, expect, run} = require("jest-lite");

const flat = require("flat")


describe('unflatten', () => {
  describe('overwrite:true', () => {
      it('number keys dont result in an array', () => {
        const expectedId = 'imagine-a-uuid-here'
        const source = `{ "foo": { "12": { "id": "${expectedId}"  } } }`
        
        const output = flat.unflatten(JSON.parse(source), { 
            delimiter: '__',
            overwrite: true
        })
        expect(Array.isArray(output.foo)).toBeFalsy()
        expect(output).toHaveProperty('foo.12.id', expectedId)
      });
      
      it('alphanumber keys dont result in an array', () => {
        const expectedId = 'imagine-a-uuid-here'
        const source = `{ "foo": { "a12": { "id": "${expectedId}"  } } }`
        
        const output = flat.unflatten(JSON.parse(source), { 
            delimiter: '__',
            overwrite: true
        })
        expect(Array.isArray(output.foo)).toBeFalsy()
        expect(output).toHaveProperty('foo.a12.id', expectedId)
      });
  });
  describe('overwrite:false', () => {
      
      it('number keys dont result in an array', () => {
        const expectedId = 'imagine-a-uuid-here'
        const source = `{ "foo": { "12": { "id": "${expectedId}"  } } }`
        
        const output = flat.unflatten(JSON.parse(source), { 
            delimiter: '__',
            overwrite: false
        })
        expect(Array.isArray(output.foo)).toBeFalsy()
        expect(output).toHaveProperty('foo.12.id', expectedId)
      });
      
  });
});

const results = await run();
results.forEach((result, index) => {
    const [ root, ...testPath ] = result.testPath
    const passes = result.status === 'pass'
    console.log(`${passes ? ':)' : ':<' } ${testPath.join(' > ')}`)
    if(result.status === 'fail'){ 
        result.errors.forEach(error => console.dir(error))
    }
})