character-sheet/tests/operations/Add.spec.js

CharacterSheet library for assembling relationships between stats and modifiers.

import Add from '../../src/operations/Add.js';

const stubImportableNumber = {
  type: 'add',
  value: 5
};

const stubImportableSelector = {
  type: 'add',
  value: 'selector'
};

const mockResolver = name => (name === 'selector' ? 5 : null);

describe('Operation: Add', () => {
  it('has been wrapped with the RegisterWith decorator', () => {
    // @TODO: whats a good way to test this?
    // console.warn('Operation: Add - Missing Test');
  });

  it('has the correct static type', () => {
    expect(Add.type).toEqual('add');
  });

  it('it imports correctly', () => {
    const add = Add.from(stubImportableSelector);
    expect(add.export()).toMatchObject(stubImportableSelector);
  });

  it('it exports correctly', () => {
    const add = new Add({ value: stubImportableNumber.value });
    expect(add.export()).toMatchObject(stubImportableNumber);
  });

  it('transforms the value properly when adding a number', () => {
    const add = new Add({ value: 10 });
    const transformedValue = add.transform(5, mockResolver);
    expect(transformedValue).toEqual(15);
  });

  it('transforms the value properly when adding a selector', () => {
    const add = new Add({ value: 'selector' });
    const transformedValue = add.transform(10, mockResolver);
    expect(transformedValue).toEqual(15);
  });
});