getMultipliers example

$this->pluginDefinition['mediaQuery'] = 'only screen and (min-width: 1220px)';
    $this->setupBreakpoint();
    $this->assertEquals('only screen and (min-width: 1220px)', $this->breakpoint->getMediaQuery());
  }

  /** * @covers ::getMultipliers */
  public function testGetMultipliers() {
    $this->pluginDefinition['multipliers'] = ['1x', '2x'];
    $this->setupBreakpoint();
    $this->assertSame(['1x', '2x'], $this->breakpoint->getMultipliers());
  }

  /** * @covers ::getProvider */
  public function testGetProvider() {
    $this->pluginDefinition['provider'] = 'Breakpoint';
    $this->setupBreakpoint();
    $this->assertEquals('Breakpoint', $this->breakpoint->getProvider());
  }

  

    ];

    // By default, breakpoints are ordered from smallest weight to largest:     // the smallest weight is expected to have the smallest breakpoint width,     // while the largest weight is expected to have the largest breakpoint     // width. For responsive images, we need largest breakpoint widths first, so     // we need to reverse the order of these breakpoints.     $breakpoints = array_reverse($this->breakpointManager->getBreakpointsByGroup($responsive_image_style->getBreakpointGroup()));

    foreach ($breakpoints as $breakpoint_id => $breakpoint) {
      foreach ($breakpoint->getMultipliers() as $multiplier) {
        $label = $multiplier . ' ' . $breakpoint->getLabel() . ' [' . $breakpoint->getMediaQuery() . ']';
        $form['keyed_styles'][$breakpoint_id][$multiplier] = [
          '#type' => 'details',
          '#title' => $label,
        ];
        $image_style_mapping = $responsive_image_style->getImageStyleMapping($breakpoint_id, $multiplier);
        if (\Drupal::moduleHandler()->moduleExists('help')) {
          $description = $this->t('See the <a href=":responsive_image_help">Responsive Image help page</a> for information on the sizes attribute.', [':responsive_image_help' => Url::fromRoute('help.page', ['name' => 'responsive_image'])->toString()]);
        }
        else {
          $description = $this->t('Enable the Help module for more information on the sizes attribute.');
        }