Test for zero division exception

src/tokens/tests/test_views.py

@@ -189,3 +189,17 @@ def test_token_submit_form_view(self) -> None:
         rows = soup.select("div.alert.alert-warning")
         matches = [s for s in rows if "This token is not valid yet" in str(s)]
         self.assertEqual(len(matches), 1, "inactive token find does not return the not valid yet.")
+
+    def test_total_finds_pct_with_no_tokens(self) -> None:
+        """Test calculating percentage with no tokens."""
+        self.client.force_login(self.users[0])
+        Token.objects.all().delete()
+
+        response = self.client.get(self.url_dashboard)
+        result = response.context["widgets"]["total_finds"]["no_js"]["Unique finds"]["pct"]
+
+        assert result == 0.0
+
+        result = response.context["widgets"]["total_finds"]["no_js"]["Not found"]["pct"]
+
+        assert result == 0.0

src/tokens/views.py

@@ -139,11 +139,11 @@ def get_total_finds_metrics(self, camp_finds: QuerySet) -> dict:
             "no_js": {
                 "Unique finds": {
                     "value": total_finds_count,
-                    "pct": (total_finds_count / token_count) * 100 if token_count else 0,
+                    "pct": (total_finds_count / token_count) * 100 if token_count else 0.0,
                 },
                 "Not found": {
                     "value": (token_count - total_finds_count),
-                    "pct": (token_count - total_finds_count) / token_count * 100 if token_count else 0,
+                    "pct": (token_count - total_finds_count) / token_count * 100 if token_count else 0.0,
                 },
             },
             "chart": {