From 759484940cab09c774b3bc99bc16ce8fed111283 Mon Sep 17 00:00:00 2001
From: MrSubidubi <finn@zed.dev>
Date: Mon, 10 Nov 2025 13:30:17 +0100
Subject: [PATCH] Add failing test

---
 crates/editor/src/bracket_colorization.rs | 38 +++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/crates/editor/src/bracket_colorization.rs b/crates/editor/src/bracket_colorization.rs
index 10a8ff5c9d4fae000c01e383353a64ebc135393a..cba48402be0c81650a2a1e12af6fbbbbb744f2c4 100644
--- a/crates/editor/src/bracket_colorization.rs
+++ b/crates/editor/src/bracket_colorization.rs
@@ -111,6 +111,7 @@ mod tests {
 
     use super::*;
     use crate::{
+        DisplayPoint,
         display_map::{DisplayRow, ToDisplayPoint},
         editor_tests::init_test,
         test::{
@@ -122,6 +123,7 @@ mod tests {
     use language::{BracketPair, BracketPairConfig, Language, LanguageConfig, LanguageMatcher};
     use multi_buffer::AnchorRangeExt as _;
     use rope::Point;
+    use text::OffsetRangeExt;
 
     #[gpui::test]
     async fn test_rainbow_bracket_highlights(cx: &mut gpui::TestAppContext) {
@@ -489,6 +491,42 @@ mod tests {
                     "Should not lose highlights while scrolling in the visible range!"
                 );
             }
+
+            let buffer_snapshot = snapshot.buffer().as_singleton().unwrap().2;
+            for (start, end) in snapshot
+                .bracket_ranges(
+                    DisplayPoint::new(visible_range.start, Default::default()).to_point(&snapshot)
+                        ..DisplayPoint::new(
+                            visible_range.end,
+                            snapshot.line_len(visible_range.end),
+                        )
+                        .to_point(&snapshot),
+                )
+                .into_iter()
+                .flatten()
+            {
+                let start_bracket = colored_brackets
+                    .iter()
+                    .find(|(_, range)| range.to_offset(buffer_snapshot) == start);
+                assert!(
+                    start_bracket.is_some(),
+                    "Existing bracket start in the visible range should be highlighted"
+                );
+
+                let end_bracket = colored_brackets
+                    .iter()
+                    .find(|(_, range)| range.to_offset(buffer_snapshot) == end);
+                assert!(
+                    end_bracket.is_some(),
+                    "Existing bracket end in the visible range should be highlighted"
+                );
+
+                assert_eq!(
+                    start_bracket.unwrap().0,
+                    end_bracket.unwrap().0,
+                    "Bracket pair should be highlighted the same color!"
+                )
+            }
         }
 
         // todo! more tests, check no brackets missing in range, settings toggle