apphouse/dist/utils/obj/fromArray.test.ts

Component library for React that uses observable state management and theme-able components.

import { fromArray } from './fromArray';

describe('fromArray', () => {
  test('should convert an array of objects with idKey to an object', () => {
    const arr = [
      { id: '1', name: 'John' },
      { id: '2', name: 'Jane' }
    ];

    const result = fromArray(arr);

    expect(result).toEqual({
      '1': { id: '1', name: 'John' },
      '2': { id: '2', name: 'Jane' }
    });
  });

  test('should convert an array of objects with custom idKey to an object', () => {
    const arr = [
      { _id: '1', name: 'John' },
      { _id: '2', name: 'Jane' }
    ];

    const result = fromArray(arr, '_id');

    expect(result).toEqual({
      '1': { _id: '1', name: 'John' },
      '2': { _id: '2', name: 'Jane' }
    });
  });

  test('should convert an array of objects with custom valueKey to an object', () => {
    const arr = [
      { id: '1', title: 'Title 1' },
      { id: '2', title: 'Title 2' }
    ];

    const result = fromArray(arr, 'id', 'title');

    expect(result).toEqual({
      '1': 'Title 1',
      '2': 'Title 2'
    });
  });

  test('should convert an array of objects to an object using "all" valueKey', () => {
    const arr = [
      { id: '1', name: 'John' },
      { id: '2', name: 'Jane' }
    ];

    const result = fromArray(arr, 'id', 'all');

    expect(result).toEqual({
      '1': { id: '1', name: 'John' },
      '2': { id: '2', name: 'Jane' }
    });
  });

  test('should convert an array of strings to an object', () => {
    const arr = ['foo', 'bar', 'baz'];

    const result = fromArray(arr);

    expect(result).toEqual({
      foo: 'foo',
      bar: 'bar',
      baz: 'baz'
    });
  });

  test('should convert an array of non-string values to an object', () => {
    const arr = [42, true, { key: 'value' }];

    const result = fromArray(arr);

    expect(result).toEqual(expect.any(Object));
    expect(Object.keys(result)).toHaveLength(arr.length);
  });
});