metamask-extension/ui/components/component-library/button-link/button-link.test.js

/* eslint-disable jest/require-top-level-describe */
import { render } from '@testing-library/react';
import React from 'react';
import { Size } from '../../../helpers/constants/design-system';
import { ICON_NAMES } from '..';
import { ButtonLink } from './button-link';
import { BUTTON_LINK_SIZES } from './button-link.constants';

describe('ButtonLink', () => {
  it('should render button element correctly', () => {
    const { getByText, getByTestId, container } = render(
      <ButtonLink data-testid="button-link">Button Link</ButtonLink>,
    );
    expect(getByText('Button Link')).toBeDefined();
    expect(container.querySelector('button')).toBeDefined();
    expect(getByTestId('button-link')).toHaveClass('mm-button-base');
    expect(container).toMatchSnapshot();
  });

  it('should render anchor element correctly', () => {
    const { getByTestId, container } = render(
      <ButtonLink as="a" data-testid="button-link" />,
    );
    expect(getByTestId('button-link')).toHaveClass('mm-button-base');
    const anchor = container.getElementsByTagName('a').length;
    expect(anchor).toBe(1);
  });

  it('should render button as block', () => {
    const { getByTestId } = render(<ButtonLink block data-testid="block" />);
    expect(getByTestId('block')).toHaveClass(`mm-button-base--block`);
  });

  it('should render with added classname', () => {
    const { getByTestId } = render(
      <ButtonLink data-testid="classname" className="mm-button--test" />,
    );
    expect(getByTestId('classname')).toHaveClass('mm-button--test');
  });

  it('should render with different size classes', () => {
    const { getByTestId } = render(
      <>
        <ButtonLink size={Size.SM} data-testid={Size.SM} />
        <ButtonLink size={Size.MD} data-testid={Size.MD} />
        <ButtonLink size={Size.LG} data-testid={Size.LG} />
      </>,
    );

    expect(getByTestId(Size.SM)).toHaveClass(`mm-button-base--size-${Size.SM}`);
    expect(getByTestId(Size.MD)).toHaveClass(`mm-button-base--size-${Size.MD}`);
    expect(getByTestId(Size.LG)).toHaveClass(`mm-button-base--size-${Size.LG}`);
  });

  it('should render ButtonLink inherit size', () => {
    const { getByTestId } = render(
      <ButtonLink size={BUTTON_LINK_SIZES.INHERIT} data-testid="inherit" />,
    );
    // Different size classname compared to Size.SM, Size.MD, Size.LG
    expect(getByTestId('inherit')).toHaveClass(`mm-button-link--size-inherit`);
  });

  it('should render as danger', () => {
    const { getByTestId } = render(
      <>
        <ButtonLink danger data-testid="danger" />
      </>,
    );

    expect(getByTestId('danger')).toHaveClass('mm-button-link--type-danger');
  });

  it('should render with different button states', () => {
    const { getByTestId } = render(
      <>
        <ButtonLink loading data-testid="loading" />
        <ButtonLink disabled data-testid="disabled" />
      </>,
    );
    expect(getByTestId('loading')).toHaveClass(`mm-button-base--loading`);
    expect(getByTestId('disabled')).toHaveClass(`mm-button-base--disabled`);
  });
  it('should render with icon', () => {
    const { container } = render(
      <ButtonLink data-testid="icon" startIconName={ICON_NAMES.ADD_SQUARE} />,
    );

    const icons = container.getElementsByClassName('mm-icon').length;
    expect(icons).toBe(1);
  });
});