From 80206387c712c2ef78eb1ce6546aa3d3969d7bb8 Mon Sep 17 00:00:00 2001
From: Jackson Moore <jacksonmoore@tuta.io>
Date: Fri, 4 Sep 2026 10:48:45 +0200
Subject: Preserve history after incomplete moves

---
 tests/run.lua | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

(limited to 'tests')

diff --git a/tests/run.lua b/tests/run.lua
index 65d831b..02f5e2d 100644
--- a/tests/run.lua
+++ b/tests/run.lua
@@ -3193,6 +3193,44 @@ test("Command execution applies the last reached count endpoint", function()
   same(domain.Position.new(1, 5), outcome.position)
 end)
 
+test("Incomplete command execution preserves successful history", function()
+  local state, transitions = fresh_sequence_state()
+  local previous_target = target("a")
+  local previous_landing = domain.Position.new(1, 1)
+  transitions:BeginAcquisition("n", "f")
+  transitions:CommitAcquiredTarget("n", previous_target, 25)
+  transitions:CommitCommandSuccess("n", previous_landing, false)
+
+  local host = MemoryHost.new({
+    buffer_lines = { "axaxa" },
+    cursor = previous_landing,
+  })
+  local executor = motion_executor.new(host)
+  local plan = motion_plan.build(
+    target_plan.build(previous_target, matching_policy()),
+    "f"
+  )
+  local descriptor_before = state:get_previous_descriptor("n")
+  local first_move_before = state:get_first_move("n")
+  local direction_before = state.moved_forward
+
+  local outcome = executor:execute(
+    text_topology.from_host(host),
+    "n",
+    plan,
+    3,
+    false
+  )
+  same(domain.ActionKind.FAILED_SEARCH, outcome.kind)
+  same(domain.Position.new(1, 5), host:read_cursor())
+  same(previous_landing, state:get_previous_landing("n"))
+  same(descriptor_before, state:get_previous_descriptor("n"))
+  same(first_move_before, state:get_first_move("n"))
+  same(previous_target, state:get_previous_target("n"))
+  same(direction_before, state.moved_forward)
+  same(25, state.repeat_timestamp_ms)
+end)
+
 for _, item in ipairs(tests) do
   local ok, failure = xpcall(item.body, debug.traceback)
   if not ok then
-- 
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