Add BibTeX tests

tests/bibtex.rb

@@ -19,3 +19,19 @@ Repubmark::References::Item
       ref.authors[0].last == 'Cohen' &&
       ref.authors[0].first == 'P. J.'
   end
+
+Repubmark::References::Item
+  .from_bibtex('citekey-techreport', bib[:CitekeyTechreport])
+  .tap do |ref|
+    p ref
+    raise unless
+      ref.title == 'Wasatch Solar Project Final Report' &&
+      ref.year == 2018 &&
+      ref.authors.size == 3 &&
+      ref.authors[0].last == 'Bennett' &&
+      ref.authors[0].first == 'Vicki' &&
+      ref.authors[1].last == 'Bowman' &&
+      ref.authors[1].first == 'Kate' &&
+      ref.authors[2].last == 'Wright' &&
+      ref.authors[2].first == 'Sarah'
+  end