This page tests DeduplicateReferences.

When this page is loaded with the script active, a test panel appears in the top-right corner showing pass/fail for each unit test. The tests run against synthetic inputs inside the script itself and are independent of the wikicode below.

When this page is opened in the editor, the script also deduplicates the ref tags below, so you can verify the live wikicode behaviour.

Each section describes one scenario. The Expected line states what the script should do. Reset the page to its saved state between test runs by using Ctrl+Z in the editor or by closing and reopening it.

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First citation.^[1] Second citation, same source.^[2]

Expected: Both refs share a name derived from the title (e.g. bbc_test_article). The second becomes <ref name="bbc_test_article" />.

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First use.^[3] Second use (back-reference).^[3]

Expected: No change. Both tags remain exactly as written.

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Claim A.^[4] Claim B.^[5] Claim C.^[6]

Expected: The first ref becomes <ref name="reuters_report_on">…</ref>; the second and third become <ref name="reuters_report_on" />. Deduplication count = 2.

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First source.^[7] Second source, different content.^[8]

Expected: No change. The refs have different content and must stay separate.

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Body text.^{[note 1]} More body text.^{[note 2]}

Expected: After deduplication both refs still carry group="note".

Alternatively, with raw ref tags:

Body text.^{[note 3]} More body text.^{[note 4]}

Expected: Same — group="note" preserved on both the named and self-closing ref.

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Source.^[9] Same source again.^[10]

Expected: Name derived from the domain: theguardian_com.

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DOI ref one.^[11] DOI ref two.^[12]

Expected: doi.org is blacklisted, so the name falls through to the title: some_journal_article. The name must not start with doi.

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This ref already uses the name that the generator would pick.^[13] This unnamed duplicate would normally get the name "example_com".^[14] Second unnamed duplicate.^[15]

Expected: The two unnamed refs get a variant name such as example_site_2 (not example_com, which is already taken). The pre-existing named ref is untouched.

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