Function genOpts

tests/Select.test.tsx:116–128

(OptLabelName, groupLabel)

    it('should support fieldName', () => {
      // groupLabel > fieldNames > self-label
      function genOpts(OptLabelName, groupLabel) {
        return [
          {
            [groupLabel]: 'groupLabel',
            options: [
              {
                value: 'value',
                [OptLabelName]: 'label',
              },
            ],
          },
        ];
      }

      const { container: containerFirst } = testingRender(
        <Select