Transform forward TILL destinations

1 files changed, 36 insertions, 0 deletions

diff --git a/tests/run.lua b/tests/run.lua
index 183c9af..e11bf1f 100644
--- a/tests/run.lua
+++ b/tests/run.lua
@@ -2347,6 +2347,42 @@ test("FIND destinations use matching target positions", function()
   )
 end)
 
+test("Forward TILL destinations use target predecessors", function()
+  local view = text_topology.new({
+    "poge huga hiyo poyo",
+    "x",
+  }, "utf-8")
+  local engine = destination_engine.new()
+  local till_h = motion_plan.build(
+    target_plan.build(target("h"), matching_policy()),
+    "t"
+  )
+  same(
+    domain.Position.new(1, 5),
+    engine:calculate(
+      view,
+      domain.Position.new(1, 1),
+      till_h,
+      1,
+      true
+    ).endpoint
+  )
+
+  local till_x = motion_plan.build(
+    target_plan.build(target("x"), matching_policy()),
+    "t"
+  )
+  local cross_line = engine:calculate(
+    view,
+    domain.Position.new(1, 18),
+    till_x,
+    1,
+    true
+  )
+  same(domain.Position.new(1, 19), cross_line.endpoint)
+  truthy(view:is_valid_cursor_position(cross_line.endpoint))
+end)
+
 for _, item in ipairs(tests) do
   local ok, failure = xpcall(item.body, debug.traceback)
   if not ok then