strengthen /nf/markdown_syntax test, also avoid errors showing up on that page in dev mode

Author: brondsem

Allura/allura/lib/markdown_extensions.py

@@ -25,6 +25,7 @@
 from urllib.parse import urljoin
 
 from tg import config
+from tg import tmpl_context as c
 from bs4 import BeautifulSoup, MarkupResemblesLocatorWarning
 import html5lib
 import html5lib.serializer
@@ -383,7 +384,7 @@ def handleMatch(self, m: re.Match[str], data: str) -> tuple[etree.Element | None
         if href:
             if href == 'TOC':
                 return None, None, None
-            if self.artifact_re.match(href):
+            if self.artifact_re.match(href) and c.project:
                 href, classes = self._expand_alink(href, is_link_with_brackets)
             el.set('href', self.unescape(href.strip()))
             el.set('class', classes)

Allura/allura/tests/functional/test_newforge.py

@@ -48,6 +48,7 @@ def test_markdown_syntax(self):
             r = self.app.get('/nf/markdown_syntax')
         r.mustcontain('Markdown Syntax')
         r.mustcontain('href="http://someurl"')
+        r.mustcontain(no='ERROR')
 
         markdown_invalid_classes = [log[2] for log in logs if 'invalid class' in log[2]]
         assert not markdown_invalid_classes
@@ -56,3 +57,4 @@ def test_markdown_syntax_dialog(self):
         r = self.app.get('/nf/markdown_syntax_dialog')
         r.mustcontain('<h1>Markdown Syntax Guide</h1>')
         r.mustcontain('href="http://someurl"')
+        r.mustcontain(no='ERROR')