add initial persistence tests

tests/test_persistence.rb

@@ -0,0 +1,65 @@
+# Copyright (c) 2023 M.J.N. Corino, The Netherlands
+#
+# This software is released under the MIT license.
+
+require_relative './lib/wxframe_runner'
+
+class TopLevelPersistenceTests < WxRuby::Test::GUITests
+
+  PERSIST_ROOT = 'Persistent_Options'
+
+  def run_frame_props_tests
+    Wx.persistent_register_and_restore(frame_win, 'TestFrame')
+
+    frame_win.size = [333, 666]
+    frame_win.position = [111, 444]
+
+    Wx::PersistenceManager.get.save_and_unregister(frame_win)
+
+    cfg = Wx::ConfigBase.get
+    assert_kind_of(Wx::ConfigBase, cfg)
+    grp = cfg.get(PERSIST_ROOT)
+    assert_kind_of(cfg.class::Group, grp)
+    grp = grp.get('Window')
+    assert_kind_of(cfg.class::Group, grp)
+    grp = grp.get('TestFrame')
+    assert_kind_of(cfg.class::Group, grp)
+
+    assert_equal(111, Integer(grp['x']))
+    assert_equal(444, Integer(grp['y']))
+    assert_equal(333, Integer(grp.w))
+    assert_equal(666, Integer(grp.h))
+
+    grp.x = 444
+    grp.y = 111
+    grp['w'] = 666
+    grp['h'] = 333
+
+    Wx.persistent_register_and_restore(frame_win, 'TestFrame')
+
+    assert_equal(Wx::Size.new(666, 333), frame_win.size)
+    assert_equal(Wx::Point.new(444, 111), frame_win.position)
+
+    Wx::PersistenceManager.get.unregister(frame_win)
+  end
+
+  def test_frame_props_ruby_config
+    # force creation of hash based Wx::Config instance
+    Wx::ConfigBase.create(true, use_hash_config: true)
+
+    run_frame_props_tests
+
+    Wx::ConfigBase.get.clear
+  end
+
+  def test_frame_props_default_config
+    # force creation of default C++ config instance
+    Wx::ConfigBase.create(true)
+
+    run_frame_props_tests
+
+    Wx::ConfigBase.get.clear
+  end
+
+
+end