block23.ts

describe("actions", () => {
  const mockContext = (foundTask: Task) => {
    return {
      getters: {  taskByTitle:(s) => foundTask },
      commit: jest.fn()
    };
  };

  it("adds tasks if they cannot be found", () => {
    const context = mockContext(undefined);
    const taskTitle = "title";

    actions.addTask(context, {
      type: Actions.AddTask,
      title: taskTitle
    });

    expect(context.commit).toHaveBeenCalledWith({
      type:  Mutations.TaskAdded,
      task: new Task(taskTitle)
    });
  });

  it("does not add tasks if they can be found", () => {
    const taskTitle = "title";
    const context = mockContext(new Task(taskTitle));

    actions.addTask(context, {
      type: Actions.AddTask,
      title: taskTitle
    });
    expect(context.commit).toHaveBeenCalledTimes(0);
  });
});