From 78525cef45d0ec8b3cd30f0fa77f9c69f7ccd2ee Mon Sep 17 00:00:00 2001
From: Andras Schmelczer <andras@schmelczer.dev>
Date: Sun, 13 Apr 2025 22:21:19 +0100
Subject: [PATCH] Fix tests ignoring overflowing cursors

---
 backend/reconcile/tests/example_document.rs  | 7 +++++++
 backend/reconcile/tests/examples/deletes.yml | 6 ++++++
 2 files changed, 13 insertions(+)

diff --git a/backend/reconcile/tests/example_document.rs b/backend/reconcile/tests/example_document.rs
index 66a56f65..10790c8b 100644
--- a/backend/reconcile/tests/example_document.rs
+++ b/backend/reconcile/tests/example_document.rs
@@ -63,6 +63,13 @@ impl ExampleDocument {
     fn text_with_cursors_to_string(text: &TextWithCursors<'_>) -> String {
         let mut result = text.text.clone().into_owned();
         for (i, cursor) in text.cursors.iter().enumerate() {
+            assert!(
+                cursor.char_index <= result.len(), // equals in case of insert at the end
+                "Cursor index out of bounds: {} > {}",
+                cursor.char_index,
+                result.len()
+            );
+
             result.insert(
                 result
                     .char_indices()
diff --git a/backend/reconcile/tests/examples/deletes.yml b/backend/reconcile/tests/examples/deletes.yml
index 59eb9337..c4c145b8 100644
--- a/backend/reconcile/tests/examples/deletes.yml
+++ b/backend/reconcile/tests/examples/deletes.yml
@@ -23,3 +23,9 @@ parent: long text with one big delete and many small
 left: long small
 right: long with big and small
 expected: long small
+
+---
+parent: long text where the cursor has to be clamped after delete
+left: long text where the cursor has to be clamped after delete|
+right: long text where the cursor
+expected: long text where the cursor|