Test actions

Actions can be tested by calling NgStateTestBed.createActions method. createActions has required param actions and two params with default values: initialState with value {} and statePath with value []. This means that for most of situations we can pass just actions type and test application in localized state. But for more complex scenarios we can pass initial state and path.

it('should return actions', () => {
    const initialState = { todos: [] };
    initialState.todos.push({ description: 'test description' });

    const actions = NgStateTestBed.createActions<TestActions>(TestActions); // in this case actions will be created with state = {};
    // OR
    const actions = NgStateTestBed.createActions(TestActions, initialState, ['todos', 0]);
    // OR
    const actions = NgStateTestBed.createSignalActions(TestActions, initialState, ['todos', 0]);
    expect(actions.todoDescription).toEqual('test description');
});

where

• first param is initialState is object or class

• second param is statePath to bind actions to

• third param is actions class

createActions as well as createSignalActions takes into consideration injectable actions. Dependenices are mocked and injected according to Angular TestBed.