src/Form.test.ts

   1 import { ComputedLine, Line } from './Line';
   2 import TaxReturn from './TaxReturn';
   3 import Form from './Form';
   4 import { InconsistencyError, NotFoundError } from './Errors';
   5
   6 test('add and get line', () => {
   7   const l = new ComputedLine<number>('1', () => 42);
   8
   9   class TestForm extends Form {
  10     get name(): string {
  11       return 'Test Form';
  12     }
  13
  14     protected getLines() {
  15       return [l];
  16     }
  17   };
  18
  19   const f = new TestForm();
  20   expect(f.getLine('1')).toBe(l);
  21 });
  22
  23 test('get non-existent line', () => {
  24   class TestForm extends Form {
  25     get name(): string {
  26       return 'Test Form';
  27     }
  28
  29     protected getLines() {
  30       return [];
  31     }
  32   };
  33
  34   const f = new TestForm();
  35   expect(() => f.getLine('1')).toThrow(NotFoundError);
  36 });
  37
  38 test('add duplicate line', () => {
  39   const l1 = new ComputedLine<number>('1', () => 42);
  40   const l2 = new ComputedLine<number>('1', () => 36);
  41
  42   class TestForm extends Form {
  43     get name(): string {
  44       return 'Test Form';
  45     }
  46
  47     protected getLines() {
  48       return [l1, l2];
  49     }
  50   };
  51
  52   expect(() => new TestForm()).toThrow(InconsistencyError);
  53 });