assert_equals(Element node <input type="text" id="input_id"></input>, Element node <input type="text" id="input_id"></input>, "Elements in shadow DOM must be accessible from shadow document label.for attribute")
    at Test.<anonymous> ( /shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-007.html:32:5)

assert_equals(Element node <form id="form_id"></form>, Element node <form id="form_id"></form>, "Elements in shadow DOM must be accessible from shadow document button.form attribute")
    at  /shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-007.html:59:9

assert_equals(Element node <form id="form_id"></form>, Element node <form id="form_id"></form>, "Elements in shadow DOM must be accessible from shadow document fieldset.form attribute")
    at  /shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-007.html:59:9

assert_equals(Element node <form id="form_id"></form>, Element node <form id="form_id"></form>, "Elements in shadow DOM must be accessible from shadow document input.form attribute")
    at  /shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-007.html:59:9

assert_equals(Element node <form id="form_id"></form>, Element node <form id="form_id"></form>, "Elements in shadow DOM must be accessible from shadow document object.form attribute")
    at  /shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-007.html:59:9

assert_equals(Element node <form id="form_id"></form>, Element node <form id="form_id"></form>, "Elements in shadow DOM must be accessible from shadow document output.form attribute")
    at  /shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-007.html:59:9

assert_equals(Element node <form id="form_id"></form>, Element node <form id="form_id"></form>, "Elements in shadow DOM must be accessible from shadow document select.form attribute")
    at  /shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-007.html:59:9

assert_equals(Element node <form id="form_id"></form>, Element node <form id="form_id"></form>, "Elements in shadow DOM must be accessible from shadow document textarea.form attribute")
    at  /shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-007.html:59:9