diff --git a/tests/phpunit/tests/functions.php b/tests/phpunit/tests/functions.php
index d3c7abbef0b6e..60f43b5f9c595 100644
--- a/tests/phpunit/tests/functions.php
+++ b/tests/phpunit/tests/functions.php
@@ -1794,6 +1794,18 @@ public function test_wp_is_stream( $path, $expected ) {
 		$this->assertSame( $expected, wp_is_stream( $path ) );
 	}
 
+	/**
+	 * Test current_datetime.
+	 *
+	 * @ticket 53484
+	 *
+	 * @covers ::current_datetime
+	 */
+	public function test_current_datetime() {
+
+		$this->assertInstanceOf( 'DateTimeImmutable', current_datetime() );
+	}
+
 	/**
 	 * Data provider for stream URL validation.
 	 *