From 67f1440e0a384000e337ab54bd9cc01804aec201 Mon Sep 17 00:00:00 2001
From: Ned Batchelder <ned@nedbatchelder.com>
Date: Tue, 24 Dec 2024 11:00:30 -0500
Subject: [PATCH] debug: this condition is never true. really?

---
 coverage/results.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/coverage/results.py b/coverage/results.py
index 43e5b523c..a9bde97c3 100644
--- a/coverage/results.py
+++ b/coverage/results.py
@@ -219,8 +219,7 @@ def executed_branch_arcs(self) -> dict[TLineNo, list[TLineNo]]:
         branch_lines = set(self._branch_lines())
         eba = collections.defaultdict(list)
         for l1, l2 in self.arcs_executed:
-            if l1 == l2:
-                continue
+            assert l1 != l2, f"Oops: Didn't think this could happen: {l1 = }, {l2 = }"
             if (l1, l2) not in self.arc_possibilities_set:
                 continue
             if l1 in branch_lines: