From 59b996be7556495e151ace6441a10ab8e381c761 Mon Sep 17 00:00:00 2001
From: Maxime Coste <frrrwww@gmail.com>
Date: Thu, 6 Jun 2013 19:54:13 +0200
Subject: [PATCH] add an UndoGroupOptimizer test

---
 src/unit_tests.cc | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/src/unit_tests.cc b/src/unit_tests.cc
index 00f54eb3..e0537123 100644
--- a/src/unit_tests.cc
+++ b/src/unit_tests.cc
@@ -48,6 +48,26 @@ void test_buffer()
     kak_assert(buffer.string(buffer.advance(buffer.end_coord(), -6), buffer.end_coord()) == "mutch\n");
 }
 
+void test_undo_group_optimizer()
+{
+    std::vector<String> lines = { "allo ?\n", "mais que fais la police\n",  " hein ?\n", " youpi\n" };
+    Buffer buffer("test", Buffer::Flags::None, lines);
+    auto pos = buffer.insert(buffer.end(), "kanaky\n");
+    buffer.erase(pos, buffer.end());
+    buffer.insert(buffer.iterator_at(2_line), "tchou\n");
+    buffer.insert(buffer.iterator_at(2_line), "mutch\n");
+    buffer.erase(buffer.iterator_at({2, 1}), buffer.iterator_at({2, 5}));
+    buffer.erase(buffer.iterator_at(2_line), buffer.end());
+    buffer.insert(buffer.end(), "youpi");
+    buffer.undo();
+    buffer.redo();
+    buffer.undo();
+
+    kak_assert((int)buffer.line_count() == lines.size());
+    for (size_t i = 0; i < lines.size(); ++i)
+        kak_assert(lines[i] == buffer[LineCount((int)i)]);
+}
+
 void test_editor()
 {
     using namespace std::placeholders;
@@ -128,6 +148,7 @@ void run_unit_tests()
     test_string();
     test_keys();
     test_buffer();
+    test_undo_group_optimizer();
     test_editor();
     test_incremental_inserter();
 }