Fix buffer-scoped event delivery

1 files changed, 16 insertions, 0 deletions

diff --git a/tests/run.lua b/tests/run.lua
index 38edcda..99674a5 100644
--- a/tests/run.lua
+++ b/tests/run.lua
@@ -6998,6 +6998,22 @@ test("Enabled eager events remove overlays and cancel timers", function()
   end
 end)
 
+test("MemoryHost limits scoped events to their buffer", function()
+  local host = MemoryHost.new({ buffer = "buffer-1" })
+  local deliveries = 0
+  host:register_events("TextChanged", function()
+    deliveries = deliveries + 1
+  end, { buffer = "buffer-1" })
+
+  host:deliver_event("TextChanged", {})
+  same(1, deliveries)
+  host:set_buffer("buffer-2")
+  host:deliver_event("TextChanged", {})
+  same(1, deliveries)
+  host:deliver_event("TextChanged", { buffer = "buffer-1" })
+  same(2, deliveries)
+end)
+
 for _, item in ipairs(tests) do
   local ok, failure = xpcall(item.body, debug.traceback)
   if not ok then