From a3f321a531554b51160f3fe7e6da1c269030f3b6 Mon Sep 17 00:00:00 2001
From: Michael Davis
Date: Wed, 23 Nov 2022 13:02:00 -0600
Subject: Follow parent links when calculating changes since a revision

The 'revisions' field on History can't be treated as linear: each
Revision in the revisions Vec has a parent link and an optional child
link. We can follow those to unroll the recent history.
---
 helix-term/tests/test/commands.rs | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'helix-term/tests')

diff --git a/helix-term/tests/test/commands.rs b/helix-term/tests/test/commands.rs
index 01295704..95bd95b7 100644
--- a/helix-term/tests/test/commands.rs
+++ b/helix-term/tests/test/commands.rs
@@ -306,5 +306,8 @@ async fn test_undo_redo() -> anyhow::Result<()> {
     // * <C-i>       Jump forward to line 1.
     test(("#[|]#", "[<space><C-s>kduU<C-o><C-i>", "#[|]#")).await?;
 
+    // In this case we 'redo' manually to ensure that the transactions are composing correctly.
+    test(("#[|]#", "[<space>u[<space>u", "#[|]#")).await?;
+
     Ok(())
 }
-- 
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