Make test_full_label assert the visible Label property

The previous assertion searched the whole page for the full label, which
is already present in the "Underlying data", "All stored data" and
"Coefficients" download URLs regardless of what the properties box shows.
It therefore passed even with ('Label', short_label(self.label)) restored.

Match the Label row rendered by templates/homepage.html instead, and check
that both URL forms return 200 so an error page cannot satisfy the content
assertion. Also assert the title still uses the short label, documenting
the intended distinction between the two formats.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Author: roed314

lmfdb/maass_forms/test_maass.py

@@ -2,6 +2,8 @@
 Tests for Maass waveforms.
 
 """
+import re
+
 from lmfdb.tests import LmfdbTest
 
 
@@ -51,11 +53,18 @@ def test_form_1234_long_label(self):
         assert "coefficients" in L.get_data(as_text=True) and "-1.236693" in L.get_data(as_text=True) and "1.858211" in L.get_data(as_text=True)
 
     def test_full_label(self):
-        # the full 5-component label should be displayed on the homepage,
-        # whether it is reached via the short or the long form of the label
+        # the full 5-component label should be visible in the properties box,
+        # whether the page is reached via the short or the long form of the
+        # label; the title keeps using the short form
         for url_label in ["2.32", "2.0.1.32.1"]:
             L = self.tc.get("/ModularForm/GL2/Q/Maass/" + url_label)
-            assert "2.0.1.32.1" in L.get_data(as_text=True)
+            assert L.status_code == 200
+            page = L.get_data(as_text=True)
+            assert re.search(
+                r'<td class="label">\s*Label\s*</td>\s*<td>\s*2\.0\.1\.32\.1\s*</td>',
+                page,
+            )
+            assert "Maass form 2.32" in page
 
     def test_underlying_data(self):
         data = self.tc.get("/ModularForm/GL2/Q/Maass/data/42.42").get_data(as_text=True)