Split wxPersistenceManager-related tests and actually build them

It seems better to organize the tests in different files and just
provide a common fixture-like class to reuse functionality.

Also use this as an opportunity to rewrite the tests to use Catch
directly instead of using CppUnit-compatible macros.

Finally, actually build these tests as part of the test suite.

tests/persistence/dataview.cpp

@@ -0,0 +1,123 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        tests/persistence/dataview.cpp
+// Purpose:     wxDataViewCtrl persistence support unit tests
+// Author:      wxWidgets Team
+// Created:     2017-08-23
+// Copyright:   (c) 2017 wxWidgets Team
+///////////////////////////////////////////////////////////////////////////////
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#include "testprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#include "testpersistence.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/dataview.h"
+#endif // WX_PRECOMP
+
+#include "wx/persist/dataview.h"
+
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
+
+#define DVC_PREFIX         PO_PREFIX "/DataView/dvc"
+#define DVC_COL            "Column #"
+#define DVC_COL_PREFIX     DVC_PREFIX "/Columns/" DVC_COL
+#define DVC_SORT_PREFIX    DVC_PREFIX "/Sorting"
+
+// --------------------------------------------------------------------------
+// tests themselves
+// --------------------------------------------------------------------------
+
+// Note: The wxDataViewCtrl test currently uses the derivative class
+// wxDataViewListCtrl for convenience.
+TEST_CASE_METHOD(PersistenceTests, "wxPersistDVC", "[persist][wxDataViewCtrl]")
+{
+    // We can't just destroy the control itself directly, we need to destroy
+    // its parent as only this will ensure that it gets wxWindowDestroyEvent
+    // from which its state will be saved.
+    wxWindow* const parent = new wxWindow(wxTheApp->GetTopWindow(), wxID_ANY);
+    wxDataViewListCtrl* const list = new wxDataViewListCtrl(parent, wxID_ANY);
+    list->SetName("dvc");
+
+    // Add some columns to the DVC.
+    list->AppendTextColumn(DVC_COL "1",
+                                wxDATAVIEW_CELL_INERT, -1, wxALIGN_LEFT,
+                                wxDATAVIEW_COL_RESIZABLE |
+                                wxDATAVIEW_COL_REORDERABLE |
+                                wxDATAVIEW_COL_SORTABLE);
+    list->AppendTextColumn(DVC_COL "2",
+                                wxDATAVIEW_CELL_INERT, -1, wxALIGN_LEFT,
+                                wxDATAVIEW_COL_RESIZABLE |
+                                wxDATAVIEW_COL_REORDERABLE |
+                                wxDATAVIEW_COL_SORTABLE);
+
+    // Populate with DVC data.
+    wxVector<wxVariant> data;
+
+    data.push_back("AAAA");
+    data.push_back("BBBB");
+    list->AppendItem(data);
+
+    data.clear();
+    data.push_back("CCCC");
+    data.push_back("DDDD");
+    list->AppendItem(data);
+
+    data.clear();
+    data.push_back("EEEE");
+    data.push_back("FFFF");
+    list->AppendItem(data);
+
+    SECTION("Save")
+    {
+        // Adjust the initial settings.
+        list->GetColumn(0)->SetWidth(150);
+        list->GetColumn(1)->SetWidth(250);
+        list->GetColumn(1)->SetSortOrder(false);
+
+        wxPersistenceManager::Get().Register(list);
+
+        delete parent;
+
+        // Test that the relevant keys have been stored correctly.
+        int val;
+        wxString text;
+
+        const wxConfigBase* const conf = wxConfig::Get();
+
+        CHECK(conf->Read(DVC_COL_PREFIX "1/Width", &val));
+        CHECK(150 == val);
+
+        CHECK(conf->Read(DVC_COL_PREFIX "2/Width", &val));
+        CHECK(250 == val);
+
+        CHECK(conf->Read(DVC_SORT_PREFIX "/Column", &text));
+        CHECK(text == "Column #2");
+
+        CHECK(conf->Read(DVC_SORT_PREFIX "/Asc", &val));
+        CHECK(0 == val);
+    }
+
+    SECTION("Restore")
+    {
+        EnableCleanup();
+
+        // Test that the object was registered and restored.
+        CHECK(wxPersistenceManager::Get().RegisterAndRestore(list));
+
+        // Test that the correct values were restored.
+        CHECK(150 == list->GetColumn(0)->GetWidth());
+        CHECK(250 == list->GetColumn(1)->GetWidth());
+        CHECK(list->GetColumn(1)->IsSortKey());
+        CHECK(!list->GetColumn(1)->IsSortOrderAscending());
+    }
+}