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- import { ButtonInteraction } from "discord.js";
- import { PaginationSent } from "djs-button-pages";
- import { PreviousPageButton } from "../src/Presets";
- describe("PreviousPageButton: button that switches pagination to the previous page.", () => {
- test("action should switch pagination's page and call an update method.", async () => {
- const switchPageMock = jest.fn(),
- updateMock = jest.fn(),
- pagesMock = ({
- update: updateMock,
- setPage:switchPageMock,
- page: 1,
- } as unknown) as PaginationSent,
- interactionMock = ({} as unknown) as ButtonInteraction;
- const button = new PreviousPageButton();
- await button.action(pagesMock, interactionMock);
-
- expect(switchPageMock).toHaveBeenCalledWith(0);
- expect(updateMock).toHaveBeenCalled();
- });
- test("switch should be disabled only when pagination is set to the first page.", async () => {
- const pagesMock1 = ({
- page: 1
- } as unknown) as PaginationSent;
-
- const button = new PreviousPageButton();
- expect(await button.switch(pagesMock1)).toBeFalsy();
- const pagesMock2 = ({
- page: 0
- } as unknown) as PaginationSent;
- expect(await button.switch(pagesMock2)).toBeTruthy();
- });
- });
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