Verify nested fold opening

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/run.lua b/tests/run.lua
index 345f146..1906c6d 100644
--- a/tests/run.lua
+++ b/tests/run.lua
@@ -7129,6 +7129,30 @@ test("Primary preflight opens folds for horizontal and all policies", function()
   same(2, host:read_fold_state().closed_levels)
 end)
 
+test("Primary preflight repeats fold opening until the line is visible", function()
+  local host = MemoryHost.new({
+    fold_open_policy = { "horizontal" },
+    closed_fold_levels = 3,
+  })
+  sequence_coordinator.new({ host = host }):primary("t")
+
+  local fold_operations = {}
+  for _, operation in ipairs(host:operations()) do
+    if operation.operation == "read_fold_state"
+      or operation.operation == "open_fold"
+    then
+      fold_operations[#fold_operations + 1] = operation.operation
+    end
+  end
+  list_same({
+    "read_fold_state",
+    "open_fold", "read_fold_state",
+    "open_fold", "read_fold_state",
+    "open_fold", "read_fold_state",
+  }, fold_operations)
+  same(0, host:read_fold_state().closed_levels)
+end)
+
 for _, item in ipairs(tests) do
   local ok, failure = xpcall(item.body, debug.traceback)
   if not ok then