element-web-Github/test/unit-tests/components/views/voip/DialPad-test.tsx

/*
Copyright 2024 New Vector Ltd.
Copyright 2023 The Matrix.org Foundation C.I.C.

SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
Please see LICENSE files in the repository root for full details.
*/

import React from "react";
import { render, screen } from "jest-matrix-react";
import userEvent from "@testing-library/user-event";

import DialPad, { BUTTONS, BUTTON_LETTERS } from "../../../../../src/components/views/voip/DialPad";

it("when hasDial is true, displays all expected numbers and letters", () => {
    render(<DialPad onDigitPress={jest.fn()} hasDial={true} onDialPress={jest.fn()} />);

    // check that we have the expected number of buttons + 1 for the dial button
    expect(screen.getAllByRole("button")).toHaveLength(BUTTONS.length + 1);

    // BUTTONS represents the numbers and symbols
    BUTTONS.forEach((button) => {
        expect(screen.getByText(button)).toBeInTheDocument();
    });

    // BUTTON_LETTERS represents the `ABC` type strings you see on the keypad, but also contains
    // some empty strings, so we filter them out prior to tests
    BUTTON_LETTERS.filter(Boolean).forEach((letterSet) => {
        expect(screen.getByText(letterSet)).toBeInTheDocument();
    });

    // check for the dial button
    expect(screen.getByRole("button", { name: "Dial" })).toBeInTheDocument();
});

it("clicking a digit button calls the correct function", async () => {
    const mockOnDigitPress = jest.fn();
    render(<DialPad onDigitPress={mockOnDigitPress} hasDial={true} onDialPress={jest.fn()} />);

    // click the `1` button
    const buttonText = "1";
    await userEvent.click(screen.getByText(buttonText, { exact: false }));
    expect(mockOnDigitPress).toHaveBeenCalledTimes(1);
    expect(mockOnDigitPress.mock.calls[0][0]).toBe(buttonText);
});

it("clicking the dial button calls the correct function", async () => {
    const mockOnDial = jest.fn();
    render(<DialPad onDigitPress={jest.fn()} hasDial={true} onDialPress={mockOnDial} />);

    // click the `1` button
    const buttonText = "Dial";
    await userEvent.click(screen.getByRole("button", { name: buttonText }));
    expect(mockOnDial).toHaveBeenCalledTimes(1);
    expect(mockOnDial).toHaveBeenCalledWith(); // represents no arguments in the call
});