fix(core/biblio): avoid double-period if author name ends with period (#4780)

Author: sidvishnoi

src/core/render-biblio.js

@@ -232,7 +232,7 @@ function stringifyReference(ref) {
   if (ref.authors && ref.authors.length) {
     output += ref.authors.join("; ");
     if (ref.etAl) output += " et al";
-    output += ". ";
+    if (!output.endsWith(".")) output += ". ";
   }
   if (ref.publisher) {
     output = `${output} ${endWithDot(ref.publisher)} `;

tests/spec/core/biblio-spec.js

@@ -18,7 +18,7 @@ describe("W3C — Bibliographic References", () => {
     TestRef1: {
       title: "Test ref title",
       href: "http://test.com",
-      authors: ["William Shakespeare"],
+      authors: ["William Shakespeare Jr."],
       publisher: "Publishers Inc.",
     },
     TestRef2: {
@@ -79,6 +79,11 @@ describe("W3C — Bibliographic References", () => {
     expect(ref.textContent.trim()).toBe(
       "evercookie - virtually irrevocable persistent cookies. Samy Kamkar. September 2010. URL: https://samy.pl/evercookie/"
     );
+
+    const refWithPeriodInEnd = doc.querySelector("#bib-testref1 + dd");
+    expect(refWithPeriodInEnd.textContent.trim()).toBe(
+      "Test ref title. William Shakespeare Jr. Publishers Inc. URL: http://test.com"
+    );
   });
 
   it("pings biblio service to see if it's running", () => {