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class-wp-navigation-block-renderer-test.php
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class-wp-navigation-block-renderer-test.php
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<?php
/**
* Test the block WP_Navigation_Block_Renderer class.
*
* @package Gutenberg
*/
class WP_Navigation_Block_Renderer_Test extends WP_UnitTestCase {
/**
* Test that navigation links are wrapped in list items to preserve accessible markup
*
* @group navigation-renderer
*
* @covers WP_Navigation_Block_Renderer::get_markup_for_inner_block
*/
public function test_gutenberg_default_block_is_enclosed_in_li_tags() {
$parsed_blocks = parse_blocks(
'<!-- wp:navigation-link {"label":"Sample Page","type":"page","kind":"post-type","url":"/hello-world"} /-->'
);
$parsed_block = $parsed_blocks[0];
$context = array();
$navigation_link_block = new WP_Block( $parsed_block, $context );
// Setup an empty testing instance of `WP_Navigation_Block_Renderer` and save the original.
$reflection = new ReflectionClass( 'WP_Navigation_Block_Renderer_Gutenberg' );
$method = $reflection->getMethod( 'get_markup_for_inner_block' );
$method->setAccessible( true );
// Invoke the private method.
$result = $method->invoke( $reflection, $navigation_link_block );
$expected = '<li class=" wp-block-navigation-item wp-block-navigation-link"><a class="wp-block-navigation-item__content" href="/hello-world"><span class="wp-block-navigation-item__label">Sample Page</span></a></li>';
$this->assertEquals( $expected, $result );
}
/**
* Test that the site-title block is wrapped in a list item to preserve accessible markup
*
* @group navigation-renderer
*
* @covers WP_Navigation_Block_Renderer::get_markup_for_inner_block
*/
public function test_gutenberg_get_markup_for_inner_block_site_title() {
// We are testing the site title block because we manually add list items around it.
$parsed_blocks = parse_blocks(
'<!-- wp:site-title /-->'
);
$parsed_block = $parsed_blocks[0];
$context = array();
$site_title_block = new WP_Block( $parsed_block, $context );
// Setup an empty testing instance of `WP_Navigation_Block_Renderer` and save the original.
$reflection = new ReflectionClass( 'WP_Navigation_Block_Renderer_Gutenberg' );
$method = $reflection->getMethod( 'get_markup_for_inner_block' );
$method->setAccessible( true );
// Invoke the private method.
$result = $method->invoke( $reflection, $site_title_block );
$expected = '<li class="wp-block-navigation-item"><h1 class="wp-block-site-title"><a href="http://' . WP_TESTS_DOMAIN . '" target="_self" rel="home">Test Blog</a></h1></li>';
$this->assertEquals( $expected, $result );
}
/**
* Test that a given block will not be automatically wrapped in a list item by default.
*
* @group navigation-renderer
*
* @covers WP_Navigation_Block_Renderer::get_markup_for_inner_block
*/
public function test_gutenberg_block_not_automatically_wrapped_with_li_tag() {
register_block_type(
'testsuite/sample-block',
array(
'api_version' => 2,
'render_callback' => function ( $attributes ) {
return '<div class="wp-block-testsuite-sample-block">' . $attributes['content'] . '</div>';
},
)
);
// We are testing the site title block because we manually add list items around it.
$parsed_blocks = parse_blocks(
'<!-- wp:testsuite/sample-block {"content":"Hello World"} /-->'
);
$parsed_block = $parsed_blocks[0];
$context = array();
$heading_block = new WP_Block( $parsed_block, $context );
// Setup an empty testing instance of `WP_Navigation_Block_Renderer` and save the original.
$reflection = new ReflectionClass( 'WP_Navigation_Block_Renderer_Gutenberg' );
$method = $reflection->getMethod( 'get_markup_for_inner_block' );
$method->setAccessible( true );
// Invoke the private method.
$result = $method->invoke( $reflection, $heading_block );
$expected = '<div class="wp-block-testsuite-sample-block">Hello World</div>';
$this->assertEquals( $expected, $result );
unregister_block_type( 'testsuite/sample-block' );
}
/**
* Test that a block can be added to the list of blocks which require a wrapping list item.
* This allows extenders to opt in to the rendering behavior of the Navigation block
* which helps to preserve accessible markup.
*
* @group navigation-renderer
*
* @covers WP_Navigation_Block_Renderer::get_markup_for_inner_block
*/
public function test_gutenberg_block_is_automatically_wrapped_with_li_tag_when_filtered() {
register_block_type(
'testsuite/sample-block',
array(
'api_version' => 2,
'render_callback' => function ( $attributes ) {
return '<div class="wp-block-testsuite-sample-block">' . $attributes['content'] . '</div>';
},
)
);
$filter_needs_list_item_wrapper_function = static function ( $needs_list_item_wrapper ) {
$needs_list_item_wrapper[] = 'testsuite/sample-block';
return $needs_list_item_wrapper;
};
add_filter(
'block_core_navigation_listable_blocks',
$filter_needs_list_item_wrapper_function,
10,
1
);
// We are testing the site title block because we manually add list items around it.
$parsed_blocks = parse_blocks(
'<!-- wp:testsuite/sample-block {"content":"Hello World"} /-->'
);
$parsed_block = $parsed_blocks[0];
$context = array();
$heading_block = new WP_Block( $parsed_block, $context );
// Setup an empty testing instance of `WP_Navigation_Block_Renderer` and save the original.
$reflection = new ReflectionClass( 'WP_Navigation_Block_Renderer_Gutenberg' );
$method = $reflection->getMethod( 'get_markup_for_inner_block' );
$method->setAccessible( true );
// Invoke the private method.
$result = $method->invoke( $reflection, $heading_block );
$expected = '<li class="wp-block-navigation-item"><div class="wp-block-testsuite-sample-block">Hello World</div></li>';
$this->assertEquals( $expected, $result );
remove_filter( 'block_core_navigation_listable_blocks', $filter_needs_list_item_wrapper_function, 10, 1 );
unregister_block_type( 'testsuite/sample-block' );
}
/**
* Test that the `get_inner_blocks_from_navigation_post` method returns an empty block list for a non-existent post.
*
* @group navigation-renderer
*
* @covers WP_Navigation_Block_Renderer::get_inner_blocks_from_navigation_post
*/
public function test_gutenberg_get_inner_blocks_from_navigation_post_returns_empty_block_list() {
$reflection = new ReflectionClass( 'WP_Navigation_Block_Renderer_Gutenberg' );
$method = $reflection->getMethod( 'get_inner_blocks_from_navigation_post' );
$method->setAccessible( true );
$attributes = array( 'ref' => 0 );
$actual = $method->invoke( $reflection, $attributes );
$expected = new WP_Block_List( array(), $attributes );
$this->assertEquals( $actual, $expected );
$this->assertCount( 0, $actual );
}
}