diff --git a/tests/phpunit/tests/functions/wpAdminNotice.php b/tests/phpunit/tests/functions/wpAdminNotice.php
index fd0ef6c44f..e2b694d726 100644
--- a/tests/phpunit/tests/functions/wpAdminNotice.php
+++ b/tests/phpunit/tests/functions/wpAdminNotice.php
@@ -1,326 +1,326 @@
-<?php
-
-/**
- * Tests for `wp_admin_notice()`.
- *
- * @group functions
- *
- * @covers ::wp_admin_notice
- */
-class Tests_Functions_WpAdminNotice extends WP_UnitTestCase {
-
-	/**
-	 * Tests that `wp_admin_notice()` outputs the expected admin notice markup.
-	 *
-	 * @ticket 57791
-	 *
-	 * @dataProvider data_should_output_admin_notice
-	 *
-	 * @param string $message  The message to output.
-	 * @param array  $args     Arguments for the admin notice.
-	 * @param string $expected The expected admin notice markup.
-	 */
-	public function test_should_output_admin_notice( $message, $args, $expected ) {
-		ob_start();
-		wp_admin_notice( $message, $args );
-		$actual = ob_get_clean();
-
-		$this->assertSame( $expected, $actual );
-	}
-
-	/**
-	 * Data provider.
-	 *
-	 * @return array[]
-	 */
-	public function data_should_output_admin_notice() {
-		return array(
-			'defaults'                                  => array(
-				'message'  => 'A notice with defaults.',
-				'args'     => array(),
-				'expected' => '<div class="notice"><p>A notice with defaults.</p></div>',
-			),
-			'an empty message (used for templates)'     => array(
-				'message'  => '',
-				'args'     => array(
-					'type'               => 'error',
-					'dismissible'        => true,
-					'id'                 => 'message',
-					'additional_classes' => array( 'inline', 'hidden' ),
-				),
-				'expected' => '<div id="message" class="notice notice-error is-dismissible inline hidden"><p></p></div>',
-			),
-			'an empty message (used for templates) without paragraph wrapping' => array(
-				'message'  => '',
-				'args'     => array(
-					'type'               => 'error',
-					'dismissible'        => true,
-					'id'                 => 'message',
-					'additional_classes' => array( 'inline', 'hidden' ),
-					'paragraph_wrap'     => false,
-				),
-				'expected' => '<div id="message" class="notice notice-error is-dismissible inline hidden"></div>',
-			),
-			'an "error" notice'                         => array(
-				'message'  => 'An "error" notice.',
-				'args'     => array(
-					'type' => 'error',
-				),
-				'expected' => '<div class="notice notice-error"><p>An "error" notice.</p></div>',
-			),
-			'a "success" notice'                        => array(
-				'message'  => 'A "success" notice.',
-				'args'     => array(
-					'type' => 'success',
-				),
-				'expected' => '<div class="notice notice-success"><p>A "success" notice.</p></div>',
-			),
-			'a "warning" notice'                        => array(
-				'message'  => 'A "warning" notice.',
-				'args'     => array(
-					'type' => 'warning',
-				),
-				'expected' => '<div class="notice notice-warning"><p>A "warning" notice.</p></div>',
-			),
-			'an "info" notice'                          => array(
-				'message'  => 'An "info" notice.',
-				'args'     => array(
-					'type' => 'info',
-				),
-				'expected' => '<div class="notice notice-info"><p>An "info" notice.</p></div>',
-			),
-			'a type that already starts with "notice-"' => array(
-				'message'  => 'A type that already starts with "notice-".',
-				'args'     => array(
-					'type' => 'notice-info',
-				),
-				'expected' => '<div class="notice notice-notice-info"><p>A type that already starts with "notice-".</p></div>',
-			),
-			'a dismissible notice'                      => array(
-				'message'  => 'A dismissible notice.',
-				'args'     => array(
-					'dismissible' => true,
-				),
-				'expected' => '<div class="notice is-dismissible"><p>A dismissible notice.</p></div>',
-			),
-			'no type and an ID'                         => array(
-				'message'  => 'A notice with an ID.',
-				'args'     => array(
-					'id' => 'message',
-				),
-				'expected' => '<div id="message" class="notice"><p>A notice with an ID.</p></div>',
-			),
-			'a type and an ID'                          => array(
-				'message'  => 'A warning notice with an ID.',
-				'args'     => array(
-					'type' => 'warning',
-					'id'   => 'message',
-				),
-				'expected' => '<div id="message" class="notice notice-warning"><p>A warning notice with an ID.</p></div>',
-			),
-			'no type and additional classes'            => array(
-				'message'  => 'A notice with additional classes.',
-				'args'     => array(
-					'additional_classes' => array( 'error', 'notice-alt' ),
-				),
-				'expected' => '<div class="notice error notice-alt"><p>A notice with additional classes.</p></div>',
-			),
-			'a type and additional classes'             => array(
-				'message'  => 'A warning notice with additional classes.',
-				'args'     => array(
-					'type'               => 'warning',
-					'additional_classes' => array( 'error', 'notice-alt' ),
-				),
-				'expected' => '<div class="notice notice-warning error notice-alt"><p>A warning notice with additional classes.</p></div>',
-			),
-			'a dismissible notice with a type and additional classes' => array(
-				'message'  => 'A dismissible warning notice with a type and additional classes.',
-				'args'     => array(
-					'type'               => 'warning',
-					'dismissible'        => true,
-					'additional_classes' => array( 'error', 'notice-alt' ),
-				),
-				'expected' => '<div class="notice notice-warning is-dismissible error notice-alt"><p>A dismissible warning notice with a type and additional classes.</p></div>',
-			),
-			'a notice without paragraph wrapping'       => array(
-				'message'  => '<span>A notice without paragraph wrapping.</span>',
-				'args'     => array(
-					'paragraph_wrap' => false,
-				),
-				'expected' => '<div class="notice"><span>A notice without paragraph wrapping.</span></div>',
-			),
-			'an unsafe type'                            => array(
-				'message'  => 'A notice with an unsafe type.',
-				'args'     => array(
-					'type' => '"><script>alert("Howdy,admin!");</script>',
-				),
-				'expected' => '<div class="notice notice-">alert("Howdy,admin!");"&gt;<p>A notice with an unsafe type.</p></div>',
-			),
-			'an unsafe ID'                              => array(
-				'message'  => 'A notice with an unsafe ID.',
-				'args'     => array(
-					'id' => '"><script>alert( "Howdy, admin!" );</script> <div class="notice',
-				),
-				'expected' => '<div id="">alert( "Howdy, admin!" ); <div class="notice"><p>A notice with an unsafe ID.</p></div>',
-			),
-			'unsafe additional classes'                 => array(
-				'message'  => 'A notice with unsafe additional classes.',
-				'args'     => array(
-					'additional_classes' => array( '"><script>alert( "Howdy, admin!" );</script> <div class="notice' ),
-				),
-				'expected' => '<div class="notice ">alert( "Howdy, admin!" ); <div class="notice"><p>A notice with unsafe additional classes.</p></div>',
-			),
-			'a type that is not a string'               => array(
-				'message'  => 'A notice with a type that is not a string.',
-				'args'     => array(
-					'type' => array(),
-				),
-				'expected' => '<div class="notice"><p>A notice with a type that is not a string.</p></div>',
-			),
-			'a type with only empty space'              => array(
-				'message'  => 'A notice with a type with only empty space.',
-				'args'     => array(
-					'type' => " \t\r\n",
-				),
-				'expected' => '<div class="notice"><p>A notice with a type with only empty space.</p></div>',
-			),
-			'an ID that is not a string'                => array(
-				'message'  => 'A notice with an ID that is not a string.',
-				'args'     => array(
-					'id' => array( 'message' ),
-				),
-				'expected' => '<div class="notice"><p>A notice with an ID that is not a string.</p></div>',
-			),
-			'an ID with only empty space'               => array(
-				'message'  => 'A notice with an ID with only empty space.',
-				'args'     => array(
-					'id' => " \t\r\n",
-				),
-				'expected' => '<div class="notice"><p>A notice with an ID with only empty space.</p></div>',
-			),
-			'dismissible as a truthy value rather than (bool) true' => array(
-				'message'  => 'A notice with dismissible as a truthy value rather than (bool) true.',
-				'args'     => array(
-					'dismissible' => 1,
-				),
-				'expected' => '<div class="notice"><p>A notice with dismissible as a truthy value rather than (bool) true.</p></div>',
-			),
-			'additional classes that are not an array'  => array(
-				'message'  => 'A notice with additional classes that are not an array.',
-				'args'     => array(
-					'additional_classes' => 'class-1 class-2 class-3',
-				),
-				'expected' => '<div class="notice"><p>A notice with additional classes that are not an array.</p></div>',
-			),
-			'additional attribute with a value'         => array(
-				'message'  => 'A notice with an additional attribute with a value.',
-				'args'     => array(
-					'attributes' => array( 'aria-live' => 'assertive' ),
-				),
-				'expected' => '<div class="notice" aria-live="assertive"><p>A notice with an additional attribute with a value.</p></div>',
-			),
-			'additional hidden attribute'               => array(
-				'message'  => 'A notice with the hidden attribute.',
-				'args'     => array(
-					'attributes' => array( 'hidden' => true ),
-				),
-				'expected' => '<div class="notice" hidden><p>A notice with the hidden attribute.</p></div>',
-			),
-			'additional attribute no associative keys'  => array(
-				'message'  => 'A notice with a boolean attribute without an associative key.',
-				'args'     => array(
-					'attributes' => array( 'hidden' ),
-				),
-				'expected' => '<div class="notice" hidden><p>A notice with a boolean attribute without an associative key.</p></div>',
-			),
-			'additional attribute with role'            => array(
-				'message'  => 'A notice with an additional attribute role.',
-				'args'     => array(
-					'attributes' => array( 'role' => 'alert' ),
-				),
-				'expected' => '<div class="notice" role="alert"><p>A notice with an additional attribute role.</p></div>',
-			),
-			'multiple additional attributes'            => array(
-				'message'  => 'A notice with multiple additional attributes.',
-				'args'     => array(
-					'attributes' => array(
-						'role'      => 'alert',
-						'data-test' => -1,
-					),
-				),
-				'expected' => '<div class="notice" role="alert" data-test="-1"><p>A notice with multiple additional attributes.</p></div>',
-			),
-			'data attribute with unsafe value'          => array(
-				'message'  => 'A notice with an additional attribute with an unsafe value.',
-				'args'     => array(
-					'attributes' => array( 'data-unsafe' => '<script>alert( "Howdy, admin!" );</script>' ),
-				),
-				'expected' => '<div class="notice" data-unsafe="&lt;script&gt;alert( &quot;Howdy, admin!&quot; );&lt;/script&gt;"><p>A notice with an additional attribute with an unsafe value.</p></div>',
-			),
-			'additional invalid attribute'              => array(
-				'message'  => 'A notice with an additional attribute that is invalid.',
-				'args'     => array(
-					'attributes' => array( 'not-valid' => 'not-valid' ),
-				),
-				'expected' => '<div class="notice"><p>A notice with an additional attribute that is invalid.</p></div>',
-			),
-			'multiple attributes with "role", invalid, data-*, numeric, and boolean' => array(
-				'message'  => 'A notice with multiple attributes with "role", invalid, "data-*", numeric, and boolean.',
-				'args'     => array(
-					'attributes' => array(
-						'role'      => 'alert',
-						'disabled'  => 'disabled',
-						'data-name' => 'my-name',
-						'data-id'   => 1,
-						'hidden',
-					),
-				),
-				'expected' => '<div class="notice" role="alert" data-name="my-name" data-id="1" hidden><p>A notice with multiple attributes with "role", invalid, "data-*", numeric, and boolean.</p></div>',
-			),
-			'paragraph wrapping as a falsy value rather than (bool) false' => array(
-				'message'  => 'A notice with paragraph wrapping as a falsy value rather than (bool) false.',
-				'args'     => array(
-					'paragraph_wrap' => 0,
-				),
-				'expected' => '<div class="notice"><p>A notice with paragraph wrapping as a falsy value rather than (bool) false.</p></div>',
-			),
-		);
-	}
-
-	/**
-	 * Tests that `_doing_it_wrong()` is thrown when a 'type' containing spaces is passed.
-	 *
-	 * @ticket 57791
-	 *
-	 * @expectedIncorrectUsage wp_get_admin_notice
-	 */
-	public function test_should_throw_doing_it_wrong_with_a_type_containing_spaces() {
-		ob_start();
-		wp_admin_notice(
-			'A type containing spaces.',
-			array( 'type' => 'first second third fourth' )
-		);
-		$actual = ob_get_clean();
-
-		$this->assertSame(
-			'<div class="notice notice-first second third fourth"><p>A type containing spaces.</p></div>',
-			$actual
-		);
-	}
-
-	/**
-	 * Tests that `wp_admin_notice()` fires the 'wp_admin_notice' action.
-	 *
-	 * @ticket 57791
-	 */
-	public function test_should_fire_wp_admin_notice_action() {
-		$action = new MockAction();
-		add_action( 'wp_admin_notice', array( $action, 'action' ) );
-
-		ob_start();
-		wp_admin_notice( 'A notice.', array( 'type' => 'success' ) );
-		ob_end_clean();
-
-		$this->assertSame( 1, $action->get_call_count() );
-	}
-}
+<?php
+
+/**
+ * Tests for `wp_admin_notice()`.
+ *
+ * @group functions
+ *
+ * @covers ::wp_admin_notice
+ */
+class Tests_Functions_WpAdminNotice extends WP_UnitTestCase {
+
+	/**
+	 * Tests that `wp_admin_notice()` outputs the expected admin notice markup.
+	 *
+	 * @ticket 57791
+	 *
+	 * @dataProvider data_should_output_admin_notice
+	 *
+	 * @param string $message  The message to output.
+	 * @param array  $args     Arguments for the admin notice.
+	 * @param string $expected The expected admin notice markup.
+	 */
+	public function test_should_output_admin_notice( $message, $args, $expected ) {
+		ob_start();
+		wp_admin_notice( $message, $args );
+		$actual = ob_get_clean();
+
+		$this->assertSame( $expected, $actual );
+	}
+
+	/**
+	 * Data provider.
+	 *
+	 * @return array[]
+	 */
+	public function data_should_output_admin_notice() {
+		return array(
+			'defaults'                                  => array(
+				'message'  => 'A notice with defaults.',
+				'args'     => array(),
+				'expected' => '<div class="notice"><p>A notice with defaults.</p></div>',
+			),
+			'an empty message (used for templates)'     => array(
+				'message'  => '',
+				'args'     => array(
+					'type'               => 'error',
+					'dismissible'        => true,
+					'id'                 => 'message',
+					'additional_classes' => array( 'inline', 'hidden' ),
+				),
+				'expected' => '<div id="message" class="notice notice-error is-dismissible inline hidden"><p></p></div>',
+			),
+			'an empty message (used for templates) without paragraph wrapping' => array(
+				'message'  => '',
+				'args'     => array(
+					'type'               => 'error',
+					'dismissible'        => true,
+					'id'                 => 'message',
+					'additional_classes' => array( 'inline', 'hidden' ),
+					'paragraph_wrap'     => false,
+				),
+				'expected' => '<div id="message" class="notice notice-error is-dismissible inline hidden"></div>',
+			),
+			'an "error" notice'                         => array(
+				'message'  => 'An "error" notice.',
+				'args'     => array(
+					'type' => 'error',
+				),
+				'expected' => '<div class="notice notice-error"><p>An "error" notice.</p></div>',
+			),
+			'a "success" notice'                        => array(
+				'message'  => 'A "success" notice.',
+				'args'     => array(
+					'type' => 'success',
+				),
+				'expected' => '<div class="notice notice-success"><p>A "success" notice.</p></div>',
+			),
+			'a "warning" notice'                        => array(
+				'message'  => 'A "warning" notice.',
+				'args'     => array(
+					'type' => 'warning',
+				),
+				'expected' => '<div class="notice notice-warning"><p>A "warning" notice.</p></div>',
+			),
+			'an "info" notice'                          => array(
+				'message'  => 'An "info" notice.',
+				'args'     => array(
+					'type' => 'info',
+				),
+				'expected' => '<div class="notice notice-info"><p>An "info" notice.</p></div>',
+			),
+			'a type that already starts with "notice-"' => array(
+				'message'  => 'A type that already starts with "notice-".',
+				'args'     => array(
+					'type' => 'notice-info',
+				),
+				'expected' => '<div class="notice notice-notice-info"><p>A type that already starts with "notice-".</p></div>',
+			),
+			'a dismissible notice'                      => array(
+				'message'  => 'A dismissible notice.',
+				'args'     => array(
+					'dismissible' => true,
+				),
+				'expected' => '<div class="notice is-dismissible"><p>A dismissible notice.</p></div>',
+			),
+			'no type and an ID'                         => array(
+				'message'  => 'A notice with an ID.',
+				'args'     => array(
+					'id' => 'message',
+				),
+				'expected' => '<div id="message" class="notice"><p>A notice with an ID.</p></div>',
+			),
+			'a type and an ID'                          => array(
+				'message'  => 'A warning notice with an ID.',
+				'args'     => array(
+					'type' => 'warning',
+					'id'   => 'message',
+				),
+				'expected' => '<div id="message" class="notice notice-warning"><p>A warning notice with an ID.</p></div>',
+			),
+			'no type and additional classes'            => array(
+				'message'  => 'A notice with additional classes.',
+				'args'     => array(
+					'additional_classes' => array( 'error', 'notice-alt' ),
+				),
+				'expected' => '<div class="notice error notice-alt"><p>A notice with additional classes.</p></div>',
+			),
+			'a type and additional classes'             => array(
+				'message'  => 'A warning notice with additional classes.',
+				'args'     => array(
+					'type'               => 'warning',
+					'additional_classes' => array( 'error', 'notice-alt' ),
+				),
+				'expected' => '<div class="notice notice-warning error notice-alt"><p>A warning notice with additional classes.</p></div>',
+			),
+			'a dismissible notice with a type and additional classes' => array(
+				'message'  => 'A dismissible warning notice with a type and additional classes.',
+				'args'     => array(
+					'type'               => 'warning',
+					'dismissible'        => true,
+					'additional_classes' => array( 'error', 'notice-alt' ),
+				),
+				'expected' => '<div class="notice notice-warning is-dismissible error notice-alt"><p>A dismissible warning notice with a type and additional classes.</p></div>',
+			),
+			'a notice without paragraph wrapping'       => array(
+				'message'  => '<span>A notice without paragraph wrapping.</span>',
+				'args'     => array(
+					'paragraph_wrap' => false,
+				),
+				'expected' => '<div class="notice"><span>A notice without paragraph wrapping.</span></div>',
+			),
+			'an unsafe type'                            => array(
+				'message'  => 'A notice with an unsafe type.',
+				'args'     => array(
+					'type' => '"><script>alert("Howdy,admin!");</script>',
+				),
+				'expected' => '<div class="notice notice-">alert("Howdy,admin!");"&gt;<p>A notice with an unsafe type.</p></div>',
+			),
+			'an unsafe ID'                              => array(
+				'message'  => 'A notice with an unsafe ID.',
+				'args'     => array(
+					'id' => '"><script>alert( "Howdy, admin!" );</script> <div class="notice',
+				),
+				'expected' => '<div id="">alert( "Howdy, admin!" ); <div class="notice"><p>A notice with an unsafe ID.</p></div>',
+			),
+			'unsafe additional classes'                 => array(
+				'message'  => 'A notice with unsafe additional classes.',
+				'args'     => array(
+					'additional_classes' => array( '"><script>alert( "Howdy, admin!" );</script> <div class="notice' ),
+				),
+				'expected' => '<div class="notice ">alert( "Howdy, admin!" ); <div class="notice"><p>A notice with unsafe additional classes.</p></div>',
+			),
+			'a type that is not a string'               => array(
+				'message'  => 'A notice with a type that is not a string.',
+				'args'     => array(
+					'type' => array(),
+				),
+				'expected' => '<div class="notice"><p>A notice with a type that is not a string.</p></div>',
+			),
+			'a type with only empty space'              => array(
+				'message'  => 'A notice with a type with only empty space.',
+				'args'     => array(
+					'type' => " \t\r\n",
+				),
+				'expected' => '<div class="notice"><p>A notice with a type with only empty space.</p></div>',
+			),
+			'an ID that is not a string'                => array(
+				'message'  => 'A notice with an ID that is not a string.',
+				'args'     => array(
+					'id' => array( 'message' ),
+				),
+				'expected' => '<div class="notice"><p>A notice with an ID that is not a string.</p></div>',
+			),
+			'an ID with only empty space'               => array(
+				'message'  => 'A notice with an ID with only empty space.',
+				'args'     => array(
+					'id' => " \t\r\n",
+				),
+				'expected' => '<div class="notice"><p>A notice with an ID with only empty space.</p></div>',
+			),
+			'dismissible as a truthy value rather than (bool) true' => array(
+				'message'  => 'A notice with dismissible as a truthy value rather than (bool) true.',
+				'args'     => array(
+					'dismissible' => 1,
+				),
+				'expected' => '<div class="notice"><p>A notice with dismissible as a truthy value rather than (bool) true.</p></div>',
+			),
+			'additional classes that are not an array'  => array(
+				'message'  => 'A notice with additional classes that are not an array.',
+				'args'     => array(
+					'additional_classes' => 'class-1 class-2 class-3',
+				),
+				'expected' => '<div class="notice"><p>A notice with additional classes that are not an array.</p></div>',
+			),
+			'additional attribute with a value'         => array(
+				'message'  => 'A notice with an additional attribute with a value.',
+				'args'     => array(
+					'attributes' => array( 'aria-live' => 'assertive' ),
+				),
+				'expected' => '<div class="notice" aria-live="assertive"><p>A notice with an additional attribute with a value.</p></div>',
+			),
+			'additional hidden attribute'               => array(
+				'message'  => 'A notice with the hidden attribute.',
+				'args'     => array(
+					'attributes' => array( 'hidden' => true ),
+				),
+				'expected' => '<div class="notice" hidden><p>A notice with the hidden attribute.</p></div>',
+			),
+			'additional attribute no associative keys'  => array(
+				'message'  => 'A notice with a boolean attribute without an associative key.',
+				'args'     => array(
+					'attributes' => array( 'hidden' ),
+				),
+				'expected' => '<div class="notice" hidden><p>A notice with a boolean attribute without an associative key.</p></div>',
+			),
+			'additional attribute with role'            => array(
+				'message'  => 'A notice with an additional attribute role.',
+				'args'     => array(
+					'attributes' => array( 'role' => 'alert' ),
+				),
+				'expected' => '<div class="notice" role="alert"><p>A notice with an additional attribute role.</p></div>',
+			),
+			'multiple additional attributes'            => array(
+				'message'  => 'A notice with multiple additional attributes.',
+				'args'     => array(
+					'attributes' => array(
+						'role'      => 'alert',
+						'data-test' => -1,
+					),
+				),
+				'expected' => '<div class="notice" role="alert" data-test="-1"><p>A notice with multiple additional attributes.</p></div>',
+			),
+			'data attribute with unsafe value'          => array(
+				'message'  => 'A notice with an additional attribute with an unsafe value.',
+				'args'     => array(
+					'attributes' => array( 'data-unsafe' => '<script>alert( "Howdy, admin!" );</script>' ),
+				),
+				'expected' => '<div class="notice" data-unsafe="&lt;script&gt;alert( &quot;Howdy, admin!&quot; );&lt;/script&gt;"><p>A notice with an additional attribute with an unsafe value.</p></div>',
+			),
+			'additional invalid attribute'              => array(
+				'message'  => 'A notice with an additional attribute that is invalid.',
+				'args'     => array(
+					'attributes' => array( 'not-valid' => 'not-valid' ),
+				),
+				'expected' => '<div class="notice"><p>A notice with an additional attribute that is invalid.</p></div>',
+			),
+			'multiple attributes with "role", invalid, data-*, numeric, and boolean' => array(
+				'message'  => 'A notice with multiple attributes with "role", invalid, "data-*", numeric, and boolean.',
+				'args'     => array(
+					'attributes' => array(
+						'role'      => 'alert',
+						'disabled'  => 'disabled',
+						'data-name' => 'my-name',
+						'data-id'   => 1,
+						'hidden',
+					),
+				),
+				'expected' => '<div class="notice" role="alert" data-name="my-name" data-id="1" hidden><p>A notice with multiple attributes with "role", invalid, "data-*", numeric, and boolean.</p></div>',
+			),
+			'paragraph wrapping as a falsy value rather than (bool) false' => array(
+				'message'  => 'A notice with paragraph wrapping as a falsy value rather than (bool) false.',
+				'args'     => array(
+					'paragraph_wrap' => 0,
+				),
+				'expected' => '<div class="notice"><p>A notice with paragraph wrapping as a falsy value rather than (bool) false.</p></div>',
+			),
+		);
+	}
+
+	/**
+	 * Tests that `_doing_it_wrong()` is thrown when a 'type' containing spaces is passed.
+	 *
+	 * @ticket 57791
+	 *
+	 * @expectedIncorrectUsage wp_get_admin_notice
+	 */
+	public function test_should_throw_doing_it_wrong_with_a_type_containing_spaces() {
+		ob_start();
+		wp_admin_notice(
+			'A type containing spaces.',
+			array( 'type' => 'first second third fourth' )
+		);
+		$actual = ob_get_clean();
+
+		$this->assertSame(
+			'<div class="notice notice-first second third fourth"><p>A type containing spaces.</p></div>',
+			$actual
+		);
+	}
+
+	/**
+	 * Tests that `wp_admin_notice()` fires the 'wp_admin_notice' action.
+	 *
+	 * @ticket 57791
+	 */
+	public function test_should_fire_wp_admin_notice_action() {
+		$action = new MockAction();
+		add_action( 'wp_admin_notice', array( $action, 'action' ) );
+
+		ob_start();
+		wp_admin_notice( 'A notice.', array( 'type' => 'success' ) );
+		ob_end_clean();
+
+		$this->assertSame( 1, $action->get_call_count() );
+	}
+}
diff --git a/tests/phpunit/tests/functions/wpGetAdminNotice.php b/tests/phpunit/tests/functions/wpGetAdminNotice.php
index 2aacdba7fe..41b24a122b 100644
--- a/tests/phpunit/tests/functions/wpGetAdminNotice.php
+++ b/tests/phpunit/tests/functions/wpGetAdminNotice.php
@@ -1,326 +1,326 @@
-<?php
-
-/**
- * Tests for `wp_get_admin_notice()`.
- *
- * @group functions
- *
- * @covers ::wp_get_admin_notice
- */
-class Tests_Functions_WpGetAdminNotice extends WP_UnitTestCase {
-
-	/**
-	 * Tests that `wp_get_admin_notice()` returns the expected admin notice markup.
-	 *
-	 * @ticket 57791
-	 *
-	 * @dataProvider data_should_return_admin_notice
-	 *
-	 * @param string $message  The message.
-	 * @param array  $args     Arguments for the admin notice.
-	 * @param string $expected The expected admin notice markup.
-	 */
-	public function test_should_return_admin_notice( $message, $args, $expected ) {
-		$this->assertSame( $expected, wp_get_admin_notice( $message, $args ) );
-	}
-
-	/**
-	 * Data provider.
-	 *
-	 * @return array[]
-	 */
-	public function data_should_return_admin_notice() {
-		return array(
-			'defaults'                                  => array(
-				'message'  => 'A notice with defaults.',
-				'args'     => array(),
-				'expected' => '<div class="notice"><p>A notice with defaults.</p></div>',
-			),
-			'an empty message (used for templates)'     => array(
-				'message'  => '',
-				'args'     => array(
-					'type'               => 'error',
-					'dismissible'        => true,
-					'id'                 => 'message',
-					'additional_classes' => array( 'inline', 'hidden' ),
-				),
-				'expected' => '<div id="message" class="notice notice-error is-dismissible inline hidden"><p></p></div>',
-			),
-			'an empty message (used for templates) without paragraph wrapping' => array(
-				'message'  => '',
-				'args'     => array(
-					'type'               => 'error',
-					'dismissible'        => true,
-					'id'                 => 'message',
-					'additional_classes' => array( 'inline', 'hidden' ),
-					'paragraph_wrap'     => false,
-				),
-				'expected' => '<div id="message" class="notice notice-error is-dismissible inline hidden"></div>',
-			),
-			'an "error" notice'                         => array(
-				'message'  => 'An "error" notice.',
-				'args'     => array(
-					'type' => 'error',
-				),
-				'expected' => '<div class="notice notice-error"><p>An "error" notice.</p></div>',
-			),
-			'a "success" notice'                        => array(
-				'message'  => 'A "success" notice.',
-				'args'     => array(
-					'type' => 'success',
-				),
-				'expected' => '<div class="notice notice-success"><p>A "success" notice.</p></div>',
-			),
-			'a "warning" notice'                        => array(
-				'message'  => 'A "warning" notice.',
-				'args'     => array(
-					'type' => 'warning',
-				),
-				'expected' => '<div class="notice notice-warning"><p>A "warning" notice.</p></div>',
-			),
-			'an "info" notice'                          => array(
-				'message'  => 'An "info" notice.',
-				'args'     => array(
-					'type' => 'info',
-				),
-				'expected' => '<div class="notice notice-info"><p>An "info" notice.</p></div>',
-			),
-			'a type that already starts with "notice-"' => array(
-				'message'  => 'A type that already starts with "notice-".',
-				'args'     => array(
-					'type' => 'notice-info',
-				),
-				'expected' => '<div class="notice notice-notice-info"><p>A type that already starts with "notice-".</p></div>',
-			),
-			'a dismissible notice'                      => array(
-				'message'  => 'A dismissible notice.',
-				'args'     => array(
-					'dismissible' => true,
-				),
-				'expected' => '<div class="notice is-dismissible"><p>A dismissible notice.</p></div>',
-			),
-			'no type and an ID'                         => array(
-				'message'  => 'A notice with an ID.',
-				'args'     => array(
-					'id' => 'message',
-				),
-				'expected' => '<div id="message" class="notice"><p>A notice with an ID.</p></div>',
-			),
-			'a type and an ID'                          => array(
-				'message'  => 'A warning notice with an ID.',
-				'args'     => array(
-					'type' => 'warning',
-					'id'   => 'message',
-				),
-				'expected' => '<div id="message" class="notice notice-warning"><p>A warning notice with an ID.</p></div>',
-			),
-			'no type and additional classes'            => array(
-				'message'  => 'A notice with additional classes.',
-				'args'     => array(
-					'additional_classes' => array( 'error', 'notice-alt' ),
-				),
-				'expected' => '<div class="notice error notice-alt"><p>A notice with additional classes.</p></div>',
-			),
-			'a type and additional classes'             => array(
-				'message'  => 'A warning notice with additional classes.',
-				'args'     => array(
-					'type'               => 'warning',
-					'additional_classes' => array( 'error', 'notice-alt' ),
-				),
-				'expected' => '<div class="notice notice-warning error notice-alt"><p>A warning notice with additional classes.</p></div>',
-			),
-			'a dismissible notice with a type and additional classes' => array(
-				'message'  => 'A dismissible warning notice with a type and additional classes.',
-				'args'     => array(
-					'type'               => 'warning',
-					'dismissible'        => true,
-					'additional_classes' => array( 'error', 'notice-alt' ),
-				),
-				'expected' => '<div class="notice notice-warning is-dismissible error notice-alt"><p>A dismissible warning notice with a type and additional classes.</p></div>',
-			),
-			'a notice without paragraph wrapping'       => array(
-				'message'  => '<span>A notice without paragraph wrapping.</span>',
-				'args'     => array(
-					'paragraph_wrap' => false,
-				),
-				'expected' => '<div class="notice"><span>A notice without paragraph wrapping.</span></div>',
-			),
-			'an unsafe type'                            => array(
-				'message'  => 'A notice with an unsafe type.',
-				'args'     => array(
-					'type' => '"><script>alert("Howdy,admin!");</script>',
-				),
-				'expected' => '<div class="notice notice-"><script>alert("Howdy,admin!");</script>"><p>A notice with an unsafe type.</p></div>',
-			),
-			'an unsafe ID'                              => array(
-				'message'  => 'A notice with an unsafe ID.',
-				'args'     => array(
-					'id' => '"><script>alert( "Howdy, admin!" );</script> <div class="notice',
-				),
-				'expected' => '<div id=""><script>alert( "Howdy, admin!" );</script> <div class="notice" class="notice"><p>A notice with an unsafe ID.</p></div>',
-			),
-			'unsafe additional classes'                 => array(
-				'message'  => 'A notice with unsafe additional classes.',
-				'args'     => array(
-					'additional_classes' => array( '"><script>alert( "Howdy, admin!" );</script> <div class="notice' ),
-				),
-				'expected' => '<div class="notice "><script>alert( "Howdy, admin!" );</script> <div class="notice"><p>A notice with unsafe additional classes.</p></div>',
-			),
-			'a type that is not a string'               => array(
-				'message'  => 'A notice with a type that is not a string.',
-				'args'     => array(
-					'type' => array(),
-				),
-				'expected' => '<div class="notice"><p>A notice with a type that is not a string.</p></div>',
-			),
-			'a type with only empty space'              => array(
-				'message'  => 'A notice with a type with only empty space.',
-				'args'     => array(
-					'type' => " \t\r\n",
-				),
-				'expected' => '<div class="notice"><p>A notice with a type with only empty space.</p></div>',
-			),
-			'an ID that is not a string'                => array(
-				'message'  => 'A notice with an ID that is not a string.',
-				'args'     => array(
-					'id' => array( 'message' ),
-				),
-				'expected' => '<div class="notice"><p>A notice with an ID that is not a string.</p></div>',
-			),
-			'an ID with only empty space'               => array(
-				'message'  => 'A notice with an ID with only empty space.',
-				'args'     => array(
-					'id' => " \t\r\n",
-				),
-				'expected' => '<div class="notice"><p>A notice with an ID with only empty space.</p></div>',
-			),
-			'dismissible as a truthy value rather than (bool) true' => array(
-				'message'  => 'A notice with dismissible as a truthy value rather than (bool) true.',
-				'args'     => array(
-					'dismissible' => 1,
-				),
-				'expected' => '<div class="notice"><p>A notice with dismissible as a truthy value rather than (bool) true.</p></div>',
-			),
-			'additional classes that are not an array'  => array(
-				'message'  => 'A notice with additional classes that are not an array.',
-				'args'     => array(
-					'additional_classes' => 'class-1 class-2 class-3',
-				),
-				'expected' => '<div class="notice"><p>A notice with additional classes that are not an array.</p></div>',
-			),
-			'additional attribute with a value'         => array(
-				'message'  => 'A notice with an additional attribute with a value.',
-				'args'     => array(
-					'attributes' => array( 'aria-live' => 'assertive' ),
-				),
-				'expected' => '<div class="notice" aria-live="assertive"><p>A notice with an additional attribute with a value.</p></div>',
-			),
-			'additional hidden attribute'               => array(
-				'message'  => 'A notice with the hidden attribute.',
-				'args'     => array(
-					'attributes' => array( 'hidden' => true ),
-				),
-				'expected' => '<div class="notice" hidden><p>A notice with the hidden attribute.</p></div>',
-			),
-			'additional attribute no associative keys'  => array(
-				'message'  => 'A notice with a boolean attribute without an associative key.',
-				'args'     => array(
-					'attributes' => array( 'hidden' ),
-				),
-				'expected' => '<div class="notice" hidden><p>A notice with a boolean attribute without an associative key.</p></div>',
-			),
-			'additional attribute with role'            => array(
-				'message'  => 'A notice with an additional attribute role.',
-				'args'     => array(
-					'attributes' => array( 'role' => 'alert' ),
-				),
-				'expected' => '<div class="notice" role="alert"><p>A notice with an additional attribute role.</p></div>',
-			),
-			'multiple additional attributes'            => array(
-				'message'  => 'A notice with multiple additional attributes.',
-				'args'     => array(
-					'attributes' => array(
-						'role'      => 'alert',
-						'data-test' => -1,
-					),
-				),
-				'expected' => '<div class="notice" role="alert" data-test="-1"><p>A notice with multiple additional attributes.</p></div>',
-			),
-			'data attribute with unsafe value'          => array(
-				'message'  => 'A notice with an additional attribute with an unsafe value.',
-				'args'     => array(
-					'attributes' => array( 'data-unsafe' => '<script>alert( "Howdy, admin!" );</script>' ),
-				),
-				'expected' => '<div class="notice" data-unsafe="&lt;script&gt;alert( &quot;Howdy, admin!&quot; );&lt;/script&gt;"><p>A notice with an additional attribute with an unsafe value.</p></div>',
-			),
-			'multiple attributes with "role", invalid, data-*, numeric, and boolean' => array(
-				'message'  => 'A notice with multiple attributes with "role", invalid, "data-*", numeric, and boolean.',
-				'args'     => array(
-					'attributes' => array(
-						'role'      => 'alert',
-						'disabled'  => 'disabled',
-						'data-name' => 'my-name',
-						'data-id'   => 1,
-						'hidden',
-					),
-				),
-				'expected' => '<div class="notice" role="alert" disabled="disabled" data-name="my-name" data-id="1" hidden><p>A notice with multiple attributes with "role", invalid, "data-*", numeric, and boolean.</p></div>',
-			),
-			'paragraph wrapping as a falsy value rather than (bool) false' => array(
-				'message'  => 'A notice with paragraph wrapping as a falsy value rather than (bool) false.',
-				'args'     => array(
-					'paragraph_wrap' => 0,
-				),
-				'expected' => '<div class="notice"><p>A notice with paragraph wrapping as a falsy value rather than (bool) false.</p></div>',
-			),
-		);
-	}
-
-	/**
-	 * Tests that `wp_get_admin_notice()` throws a `_doing_it_wrong()` when
-	 * a 'type' containing spaces is passed.
-	 *
-	 * @ticket 57791
-	 *
-	 * @expectedIncorrectUsage wp_get_admin_notice
-	 */
-	public function test_should_throw_doing_it_wrong_with_a_type_containing_spaces() {
-		$this->assertSame(
-			'<div class="notice notice-first second third fourth"><p>A type containing spaces.</p></div>',
-			wp_get_admin_notice(
-				'A type containing spaces.',
-				array( 'type' => 'first second third fourth' )
-			)
-		);
-	}
-
-	/**
-	 * Tests that `wp_get_admin_notice()` applies filters.
-	 *
-	 * @ticket 57791
-	 *
-	 * @dataProvider data_should_apply_filters
-	 *
-	 * @param string $hook_name The name of the filter hook.
-	 */
-	public function test_should_apply_filters( $hook_name ) {
-		$filter = new MockAction();
-		add_filter( $hook_name, array( $filter, 'filter' ) );
-
-		wp_get_admin_notice( 'A notice.', array( 'type' => 'success' ) );
-
-		$this->assertSame( 1, $filter->get_call_count() );
-	}
-
-	/**
-	 * Data provider.
-	 *
-	 * @return array[]
-	 */
-	public function data_should_apply_filters() {
-		return array(
-			'wp_admin_notice_args'   => array( 'hook_name' => 'wp_admin_notice_args' ),
-			'wp_admin_notice_markup' => array( 'hook_name' => 'wp_admin_notice_markup' ),
-		);
-	}
-}
+<?php
+
+/**
+ * Tests for `wp_get_admin_notice()`.
+ *
+ * @group functions
+ *
+ * @covers ::wp_get_admin_notice
+ */
+class Tests_Functions_WpGetAdminNotice extends WP_UnitTestCase {
+
+	/**
+	 * Tests that `wp_get_admin_notice()` returns the expected admin notice markup.
+	 *
+	 * @ticket 57791
+	 *
+	 * @dataProvider data_should_return_admin_notice
+	 *
+	 * @param string $message  The message.
+	 * @param array  $args     Arguments for the admin notice.
+	 * @param string $expected The expected admin notice markup.
+	 */
+	public function test_should_return_admin_notice( $message, $args, $expected ) {
+		$this->assertSame( $expected, wp_get_admin_notice( $message, $args ) );
+	}
+
+	/**
+	 * Data provider.
+	 *
+	 * @return array[]
+	 */
+	public function data_should_return_admin_notice() {
+		return array(
+			'defaults'                                  => array(
+				'message'  => 'A notice with defaults.',
+				'args'     => array(),
+				'expected' => '<div class="notice"><p>A notice with defaults.</p></div>',
+			),
+			'an empty message (used for templates)'     => array(
+				'message'  => '',
+				'args'     => array(
+					'type'               => 'error',
+					'dismissible'        => true,
+					'id'                 => 'message',
+					'additional_classes' => array( 'inline', 'hidden' ),
+				),
+				'expected' => '<div id="message" class="notice notice-error is-dismissible inline hidden"><p></p></div>',
+			),
+			'an empty message (used for templates) without paragraph wrapping' => array(
+				'message'  => '',
+				'args'     => array(
+					'type'               => 'error',
+					'dismissible'        => true,
+					'id'                 => 'message',
+					'additional_classes' => array( 'inline', 'hidden' ),
+					'paragraph_wrap'     => false,
+				),
+				'expected' => '<div id="message" class="notice notice-error is-dismissible inline hidden"></div>',
+			),
+			'an "error" notice'                         => array(
+				'message'  => 'An "error" notice.',
+				'args'     => array(
+					'type' => 'error',
+				),
+				'expected' => '<div class="notice notice-error"><p>An "error" notice.</p></div>',
+			),
+			'a "success" notice'                        => array(
+				'message'  => 'A "success" notice.',
+				'args'     => array(
+					'type' => 'success',
+				),
+				'expected' => '<div class="notice notice-success"><p>A "success" notice.</p></div>',
+			),
+			'a "warning" notice'                        => array(
+				'message'  => 'A "warning" notice.',
+				'args'     => array(
+					'type' => 'warning',
+				),
+				'expected' => '<div class="notice notice-warning"><p>A "warning" notice.</p></div>',
+			),
+			'an "info" notice'                          => array(
+				'message'  => 'An "info" notice.',
+				'args'     => array(
+					'type' => 'info',
+				),
+				'expected' => '<div class="notice notice-info"><p>An "info" notice.</p></div>',
+			),
+			'a type that already starts with "notice-"' => array(
+				'message'  => 'A type that already starts with "notice-".',
+				'args'     => array(
+					'type' => 'notice-info',
+				),
+				'expected' => '<div class="notice notice-notice-info"><p>A type that already starts with "notice-".</p></div>',
+			),
+			'a dismissible notice'                      => array(
+				'message'  => 'A dismissible notice.',
+				'args'     => array(
+					'dismissible' => true,
+				),
+				'expected' => '<div class="notice is-dismissible"><p>A dismissible notice.</p></div>',
+			),
+			'no type and an ID'                         => array(
+				'message'  => 'A notice with an ID.',
+				'args'     => array(
+					'id' => 'message',
+				),
+				'expected' => '<div id="message" class="notice"><p>A notice with an ID.</p></div>',
+			),
+			'a type and an ID'                          => array(
+				'message'  => 'A warning notice with an ID.',
+				'args'     => array(
+					'type' => 'warning',
+					'id'   => 'message',
+				),
+				'expected' => '<div id="message" class="notice notice-warning"><p>A warning notice with an ID.</p></div>',
+			),
+			'no type and additional classes'            => array(
+				'message'  => 'A notice with additional classes.',
+				'args'     => array(
+					'additional_classes' => array( 'error', 'notice-alt' ),
+				),
+				'expected' => '<div class="notice error notice-alt"><p>A notice with additional classes.</p></div>',
+			),
+			'a type and additional classes'             => array(
+				'message'  => 'A warning notice with additional classes.',
+				'args'     => array(
+					'type'               => 'warning',
+					'additional_classes' => array( 'error', 'notice-alt' ),
+				),
+				'expected' => '<div class="notice notice-warning error notice-alt"><p>A warning notice with additional classes.</p></div>',
+			),
+			'a dismissible notice with a type and additional classes' => array(
+				'message'  => 'A dismissible warning notice with a type and additional classes.',
+				'args'     => array(
+					'type'               => 'warning',
+					'dismissible'        => true,
+					'additional_classes' => array( 'error', 'notice-alt' ),
+				),
+				'expected' => '<div class="notice notice-warning is-dismissible error notice-alt"><p>A dismissible warning notice with a type and additional classes.</p></div>',
+			),
+			'a notice without paragraph wrapping'       => array(
+				'message'  => '<span>A notice without paragraph wrapping.</span>',
+				'args'     => array(
+					'paragraph_wrap' => false,
+				),
+				'expected' => '<div class="notice"><span>A notice without paragraph wrapping.</span></div>',
+			),
+			'an unsafe type'                            => array(
+				'message'  => 'A notice with an unsafe type.',
+				'args'     => array(
+					'type' => '"><script>alert("Howdy,admin!");</script>',
+				),
+				'expected' => '<div class="notice notice-"><script>alert("Howdy,admin!");</script>"><p>A notice with an unsafe type.</p></div>',
+			),
+			'an unsafe ID'                              => array(
+				'message'  => 'A notice with an unsafe ID.',
+				'args'     => array(
+					'id' => '"><script>alert( "Howdy, admin!" );</script> <div class="notice',
+				),
+				'expected' => '<div id=""><script>alert( "Howdy, admin!" );</script> <div class="notice" class="notice"><p>A notice with an unsafe ID.</p></div>',
+			),
+			'unsafe additional classes'                 => array(
+				'message'  => 'A notice with unsafe additional classes.',
+				'args'     => array(
+					'additional_classes' => array( '"><script>alert( "Howdy, admin!" );</script> <div class="notice' ),
+				),
+				'expected' => '<div class="notice "><script>alert( "Howdy, admin!" );</script> <div class="notice"><p>A notice with unsafe additional classes.</p></div>',
+			),
+			'a type that is not a string'               => array(
+				'message'  => 'A notice with a type that is not a string.',
+				'args'     => array(
+					'type' => array(),
+				),
+				'expected' => '<div class="notice"><p>A notice with a type that is not a string.</p></div>',
+			),
+			'a type with only empty space'              => array(
+				'message'  => 'A notice with a type with only empty space.',
+				'args'     => array(
+					'type' => " \t\r\n",
+				),
+				'expected' => '<div class="notice"><p>A notice with a type with only empty space.</p></div>',
+			),
+			'an ID that is not a string'                => array(
+				'message'  => 'A notice with an ID that is not a string.',
+				'args'     => array(
+					'id' => array( 'message' ),
+				),
+				'expected' => '<div class="notice"><p>A notice with an ID that is not a string.</p></div>',
+			),
+			'an ID with only empty space'               => array(
+				'message'  => 'A notice with an ID with only empty space.',
+				'args'     => array(
+					'id' => " \t\r\n",
+				),
+				'expected' => '<div class="notice"><p>A notice with an ID with only empty space.</p></div>',
+			),
+			'dismissible as a truthy value rather than (bool) true' => array(
+				'message'  => 'A notice with dismissible as a truthy value rather than (bool) true.',
+				'args'     => array(
+					'dismissible' => 1,
+				),
+				'expected' => '<div class="notice"><p>A notice with dismissible as a truthy value rather than (bool) true.</p></div>',
+			),
+			'additional classes that are not an array'  => array(
+				'message'  => 'A notice with additional classes that are not an array.',
+				'args'     => array(
+					'additional_classes' => 'class-1 class-2 class-3',
+				),
+				'expected' => '<div class="notice"><p>A notice with additional classes that are not an array.</p></div>',
+			),
+			'additional attribute with a value'         => array(
+				'message'  => 'A notice with an additional attribute with a value.',
+				'args'     => array(
+					'attributes' => array( 'aria-live' => 'assertive' ),
+				),
+				'expected' => '<div class="notice" aria-live="assertive"><p>A notice with an additional attribute with a value.</p></div>',
+			),
+			'additional hidden attribute'               => array(
+				'message'  => 'A notice with the hidden attribute.',
+				'args'     => array(
+					'attributes' => array( 'hidden' => true ),
+				),
+				'expected' => '<div class="notice" hidden><p>A notice with the hidden attribute.</p></div>',
+			),
+			'additional attribute no associative keys'  => array(
+				'message'  => 'A notice with a boolean attribute without an associative key.',
+				'args'     => array(
+					'attributes' => array( 'hidden' ),
+				),
+				'expected' => '<div class="notice" hidden><p>A notice with a boolean attribute without an associative key.</p></div>',
+			),
+			'additional attribute with role'            => array(
+				'message'  => 'A notice with an additional attribute role.',
+				'args'     => array(
+					'attributes' => array( 'role' => 'alert' ),
+				),
+				'expected' => '<div class="notice" role="alert"><p>A notice with an additional attribute role.</p></div>',
+			),
+			'multiple additional attributes'            => array(
+				'message'  => 'A notice with multiple additional attributes.',
+				'args'     => array(
+					'attributes' => array(
+						'role'      => 'alert',
+						'data-test' => -1,
+					),
+				),
+				'expected' => '<div class="notice" role="alert" data-test="-1"><p>A notice with multiple additional attributes.</p></div>',
+			),
+			'data attribute with unsafe value'          => array(
+				'message'  => 'A notice with an additional attribute with an unsafe value.',
+				'args'     => array(
+					'attributes' => array( 'data-unsafe' => '<script>alert( "Howdy, admin!" );</script>' ),
+				),
+				'expected' => '<div class="notice" data-unsafe="&lt;script&gt;alert( &quot;Howdy, admin!&quot; );&lt;/script&gt;"><p>A notice with an additional attribute with an unsafe value.</p></div>',
+			),
+			'multiple attributes with "role", invalid, data-*, numeric, and boolean' => array(
+				'message'  => 'A notice with multiple attributes with "role", invalid, "data-*", numeric, and boolean.',
+				'args'     => array(
+					'attributes' => array(
+						'role'      => 'alert',
+						'disabled'  => 'disabled',
+						'data-name' => 'my-name',
+						'data-id'   => 1,
+						'hidden',
+					),
+				),
+				'expected' => '<div class="notice" role="alert" disabled="disabled" data-name="my-name" data-id="1" hidden><p>A notice with multiple attributes with "role", invalid, "data-*", numeric, and boolean.</p></div>',
+			),
+			'paragraph wrapping as a falsy value rather than (bool) false' => array(
+				'message'  => 'A notice with paragraph wrapping as a falsy value rather than (bool) false.',
+				'args'     => array(
+					'paragraph_wrap' => 0,
+				),
+				'expected' => '<div class="notice"><p>A notice with paragraph wrapping as a falsy value rather than (bool) false.</p></div>',
+			),
+		);
+	}
+
+	/**
+	 * Tests that `wp_get_admin_notice()` throws a `_doing_it_wrong()` when
+	 * a 'type' containing spaces is passed.
+	 *
+	 * @ticket 57791
+	 *
+	 * @expectedIncorrectUsage wp_get_admin_notice
+	 */
+	public function test_should_throw_doing_it_wrong_with_a_type_containing_spaces() {
+		$this->assertSame(
+			'<div class="notice notice-first second third fourth"><p>A type containing spaces.</p></div>',
+			wp_get_admin_notice(
+				'A type containing spaces.',
+				array( 'type' => 'first second third fourth' )
+			)
+		);
+	}
+
+	/**
+	 * Tests that `wp_get_admin_notice()` applies filters.
+	 *
+	 * @ticket 57791
+	 *
+	 * @dataProvider data_should_apply_filters
+	 *
+	 * @param string $hook_name The name of the filter hook.
+	 */
+	public function test_should_apply_filters( $hook_name ) {
+		$filter = new MockAction();
+		add_filter( $hook_name, array( $filter, 'filter' ) );
+
+		wp_get_admin_notice( 'A notice.', array( 'type' => 'success' ) );
+
+		$this->assertSame( 1, $filter->get_call_count() );
+	}
+
+	/**
+	 * Data provider.
+	 *
+	 * @return array[]
+	 */
+	public function data_should_apply_filters() {
+		return array(
+			'wp_admin_notice_args'   => array( 'hook_name' => 'wp_admin_notice_args' ),
+			'wp_admin_notice_markup' => array( 'hook_name' => 'wp_admin_notice_markup' ),
+		);
+	}
+}