Svelte Kit using Testing Library not recognising href value

I am setting up some tests for a Svelte Kit project using Testing Library which are checking for the presence of HTML elements and subsequent values. At the moment I am writing these tests for my application, looking for specific <a> tags and checking they contain an href with a given value.

The problem I am having is that whilst tests work against elements which do not not display a text value (Twitter links with icons), they do not work against text values. For example, this elements and associated test work fine. I have used aria-label to give the test suite a target.

<a aria-label="Follow us on Twitter" class="icon-item bg-white text-twitter" href="https://twitter.com/Foo" target="_blank" rel="noreferrer"><span class="fa-brands fa-twitter"></span></a>test('footer contains Twitter link', async () => {    render(Footer);    const link = screen.getByRole('link', { name: 'Follow us on Twitter' });    expect(link).toHaveProperty("href", "https://twitter.com/Foo");});

But this combination do not.

<div class="col ps-lg-6 ps-xl-8"><div class="row mt-5 mt-lg-0"><div class="col-6 col-md-3"><h5 class="text-uppercase text-white opacity-85 mb-3">Company</h5><ul class="list-unstyled"><li class="mb-1"><a class="link-600" href="/services">Services</a></li><li class="mb-1"><a class="link-600" href="/about">About</a></li><li class="mb-1"><a class="link-600" href="/blog">Blog</a></li><li class="mb-1"><a class="link-600" href="/contact">Contact</a></li></ul></div>...SNIP...</ul></div></div></div>

Test case

test("footer contains a link to '/services'", async () => {    render(Footer);    const link = screen.getByRole('link', { name: 'Services' });    expect(link).toHaveProperty("href", "/services");});

What I don't understand is why the matching to Services won't work. When I set this line in the test suite and break on expect(), the value of a is true.

let a = link.hasAttribute("href")

When I change it to a non-existent value, I get the following output from the test suite.

FAIL  src/lib/components/footer.test.js > footer contains a link to '/services'TestingLibraryElementError: Unable to find an accessible element with the role "link" and name "Servicesa"Here are the accessible roles:  heading:  Name "Our Mission":<h5    class="text-uppercase text-white opacity-85 mb-3 s-1erdp_PvG-Jl"  /> ...SNIP...  --------------------------------------------------  link:...SNIP...  Name "Follow us on Twitter":<a    aria-label="Follow us on Twitter"    class="icon-item bg-white text-twitter s-1erdp_PvG-Jl"    href="https://twitter.com/Foo"    rel="noreferrer"    target="_blank"  />  Name "Services":<a    class="link-600 s-1erdp_PvG-Jl"    href="/services"  />

What am I missing here about this test case that is making it break?