diff options
Diffstat (limited to 'helix-term/tests/test/splits.rs')
| -rw-r--r-- | helix-term/tests/test/splits.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/helix-term/tests/test/splits.rs b/helix-term/tests/test/splits.rs index 5807413a..a51de365 100644 --- a/helix-term/tests/test/splits.rs +++ b/helix-term/tests/test/splits.rs @@ -127,3 +127,29 @@ async fn test_split_write_quit_same_file() -> anyhow::Result<()> { Ok(()) } + +#[tokio::test(flavor = "multi_thread")] +async fn test_changes_in_splits_apply_to_all_views() -> anyhow::Result<()> { + // See <https://github.com/helix-editor/helix/issues/4732>. + // Transactions must be applied to any view that has the changed document open. + // This sequence would panic since the jumplist entry would be modified in one + // window but not the other. Attempting to update the changelist in the other + // window would cause a panic since it would point outside of the document. + + // The key sequence here: + // * <C-w>v Create a vertical split of the current buffer. + // Both views look at the same doc. + // * [<space> Add a line ending to the beginning of the document. + // The cursor is now at line 2 in window 2. + // * <C-s> Save that selection to the jumplist in window 2. + // * <C-w>w Switch to window 1. + // * kd Delete line 1 in window 1. + // * <C-w>q Close window 1, focusing window 2. + // * d Delete line 1 in window 2. + // + // This panicked in the past because the jumplist entry on line 2 of window 2 + // was not updated and after the `kd` step, pointed outside of the document. + test(("#[|]#", "<C-w>v[<space><C-s><C-w>wkd<C-w>qd", "#[|]#")).await?; + + Ok(()) +} |