done adding search-list related tests for 'dN' motion

test/normal-delete-tests.sml

@@ -5986,7 +5986,6 @@ struct
                (actualString = expectedString
                 andalso cursorIdx = expectedCursorIdx)
            end)
-
     , test
         "decrements subsequent matches in search list \
         \when we delete prior to last match"
@@ -6019,6 +6018,103 @@ struct
              val expectedNewSearchList =
                [{start = 5, finish = 9}, {start = 11, finish = 15}]
 
+             val assertion =
+               oldSearchList = expectedOldSearchList
+               andalso newSearchList = expectedNewSearchList
+           in
+             Expect.isTrue assertion
+           end)
+    , test "recognises new match when there is a match after deletion" (fn _ =>
+        let
+          (* arrange *)
+          val originalIdx = 8
+          val originalString = "hhello, ello\n"
+
+          val app = TestUtils.init originalString
+          val app = AppWith.idx (app, originalIdx)
+
+          val app = TestUtils.updateMany (app, "/hello")
+          val app = AppUpdate.update (app, InputMsg.KEY_ENTER, Time.now ())
+
+          (* act *)
+          val newApp = TestUtils.updateMany (app, "dN")
+
+          (* assert *)
+          val oldSearchList = #searchList app
+          val oldSearchList = PersistentVector.toList oldSearchList
+          val newSearchList = #searchList newApp
+          val newSearchList = PersistentVector.toList newSearchList
+
+          val expectedOldSearchList = [{start = 1, finish = 5}]
+          val expectedNewSearchList = [{start = 0, finish = 4}]
+
+          val assertion =
+            oldSearchList = expectedOldSearchList
+            andalso newSearchList = expectedNewSearchList
+        in
+          Expect.isTrue assertion
+        end)
+    , test
+        "shortens existing match when existing match should shorten after deletion"
+        (fn _ =>
+           let
+             (* arrange *)
+             val originalIdx = 7
+             val originalString = "test ooooooo hi there\n"
+
+             val app = TestUtils.init originalString
+             val app = AppWith.idx (app, originalIdx)
+
+             val app = TestUtils.updateMany (app, "/o+")
+             val app = AppUpdate.update (app, InputMsg.KEY_ENTER, Time.now ())
+
+             (* act *)
+             val newApp = TestUtils.updateMany (app, "dN")
+
+             (* assert *)
+             val oldSearchList = #searchList app
+             val oldSearchList = PersistentVector.toList oldSearchList
+
+             val newSearchList = #searchList newApp
+             val newSearchList = PersistentVector.toList newSearchList
+
+             val expectedOldSearchList = [{start = 5, finish = 11}]
+             val expectedNewSearchList = [{start = 5, finish = 9}]
+
+             val assertion =
+               oldSearchList = expectedOldSearchList
+               andalso newSearchList = expectedNewSearchList
+           in
+             Expect.isTrue assertion
+           end)
+    , test
+        "deletes match in search list \
+        \when match no longer exists in buffer after deletion"
+        (fn _ =>
+           let
+             (* arrange *)
+             val originalIdx = 9
+             val originalString = "hello world test again\n"
+
+             val app = TestUtils.init originalString
+             val app = AppWith.idx (app, originalIdx)
+
+             val app = TestUtils.updateMany (app, "/o")
+             val app = AppUpdate.update (app, InputMsg.KEY_ENTER, Time.now ())
+
+             (* act *)
+             val newApp = TestUtils.updateMany (app, "dN")
+
+             (* assert *)
+             val oldSearchList = #searchList app
+             val oldSearchList = PersistentVector.toList oldSearchList
+             val newSearchList = #searchList newApp
+             val newSearchList = PersistentVector.toList newSearchList
+
+             val expectedOldSearchList =
+               [{start = 4, finish = 4}, {start = 7, finish = 7}]
+             val expectedNewSearchList = [{start = 4, finish = 4}]
+
              val assertion =
                oldSearchList = expectedOldSearchList
                andalso newSearchList = expectedNewSearchList