export enum Category {
    NotDefined,
    RealTime,
    BackData,
    Testing,
    Simulated
}

Type 'Category.Testing' is not comparable to type 'Category.BackData'

import { Category } from '@app/model/Enums.ts';

public async SubmitForm(): Promise<Boolean> {
    var category: Category;
    category = Category.BackData;

    switch (category) {
      case (Category.Testing): {
        this.workRequest.RangeStart == 0.1;
        this.workRequest.RangeEnd == 0.3;
        this.workRequest.RangeStep = 0.1;
      }
      default: {
        this.workRequest.RangeStart == 0.00;
        this.workRequest.RangeEnd == 1.00;
        this.workRequest.RangeStep = 0.01;
      }
    }

    if (category == Category.Testing) {
      this.workRequest.RangeStart == 0.1;
      this.workRequest.RangeEnd == 0.3;
      this.workRequest.RangeStep = 0.1;
    } else {
      this.workRequest.RangeStart == 0.00;
      this.workRequest.RangeEnd == 1.00;
      this.workRequest.RangeStep = 0.01;
    }
}