Bound target start enumeration

1 files changed, 71 insertions, 0 deletions

diff --git a/tests/run.lua b/tests/run.lua
index e84c12a..d657870 100644
--- a/tests/run.lua
+++ b/tests/run.lua
@@ -2238,6 +2238,77 @@ test("DestinationEngine enumerates target starts in motion order", function()
   list_same({ "b:(1,2)", "a:(1,1)" }, visits)
 end)
 
+test("DestinationEngine stops target starts at selected boundaries", function()
+  local view = text_topology.new({ "axa", "", "axa" }, "utf-8")
+  local target_match = target_plan.build(target("a"), matching_policy())
+  local engine = destination_engine.new()
+  local line_forward = motion_plan.build(target_match, "f", "current_line")
+  local buffer_forward = motion_plan.build(target_match, "f", "buffer")
+  local line_backward = motion_plan.build(target_match, "F", "current_line")
+  local buffer_backward = motion_plan.build(target_match, "F", "buffer")
+
+  same(
+    domain.Position.new(1, 3),
+    engine:calculate(
+      view,
+      domain.Position.new(1, 1),
+      line_forward,
+      1,
+      true
+    ).endpoint
+  )
+  same(
+    domain.SearchStatus.BOUNDARY_BEFORE_ANY,
+    engine:calculate(
+      view,
+      domain.Position.new(1, 3),
+      line_forward,
+      1,
+      false
+    ).status
+  )
+  same(
+    domain.Position.new(3, 1),
+    engine:calculate(
+      view,
+      domain.Position.new(1, 3),
+      buffer_forward,
+      1,
+      false
+    ).endpoint
+  )
+  same(
+    domain.Position.new(3, 1),
+    engine:calculate(
+      view,
+      domain.Position.new(3, 3),
+      line_backward,
+      1,
+      true
+    ).endpoint
+  )
+  same(
+    domain.Position.new(1, 3),
+    engine:calculate(
+      view,
+      domain.Position.new(3, 1),
+      buffer_backward,
+      1,
+      false
+    ).endpoint
+  )
+  same(
+    domain.Position.new(3, 1),
+    engine:calculate(
+      view,
+      domain.Position.new(2, 1),
+      buffer_forward,
+      1,
+      true
+    ).endpoint
+  )
+end)
+
 for _, item in ipairs(tests) do
   local ok, failure = xpcall(item.body, debug.traceback)
   if not ok then