Merge branch 'settings'

1 files changed, 203 insertions, 0 deletions

diff --git a/test/syncedsettings.cc b/test/syncedsettings.cc
new file mode 100644
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--- /dev/null
+++ b/test/syncedsettings.cc
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            syncedsettings.cc
+ *
+ *  Wed Mar 31 09:32:12 CET 2016
+ *  Copyright 2016 Christian Glöckner
+ *  cgloeckner@freenet.de
+ ****************************************************************************/
+
+/*
+ *  This file is part of DrumGizmo.
+ *
+ *  DrumGizmo is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  DrumGizmo is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with DrumGizmo; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include <cppunit/extensions/HelperMacros.h>
+
+#include <syncedsettings.h>
+
+class SyncedSettingsTest
+	: public CppUnit::TestFixture {
+		
+	CPPUNIT_TEST_SUITE(SyncedSettingsTest);
+	CPPUNIT_TEST(groupCanBeDefaultInitialized);
+	CPPUNIT_TEST(groupDataCanBeCopied);
+	
+	CPPUNIT_TEST(accessorCanGetFields);
+	CPPUNIT_TEST(accessorCanSetFields);
+	
+	CPPUNIT_TEST(groupHasCopyCtor);
+	CPPUNIT_TEST(groupHasMoveCtor);
+	CPPUNIT_TEST(groupHasCopyAssignOp);
+	CPPUNIT_TEST(groupHasMoveAssignOp);
+	
+	CPPUNIT_TEST(mimicRealUse);
+	CPPUNIT_TEST_SUITE_END();
+	
+	private:
+		struct TestData {
+			float foo;
+			bool bar;
+			std::string msg;
+		};
+	
+	public:
+		void setUp() {}
+		void tearDown() {}
+		
+		void groupCanBeDefaultInitialized() {
+			Group<TestData> data;
+		}
+		
+		void groupDataCanBeCopied() {
+			Group<TestData> data;
+			(TestData)data; // copies
+		}
+		
+		void accessorCanSetFields() {
+			Group<TestData> data;
+			{
+				Accessor<TestData> a{data};
+				a.data.foo = 3.f;
+				a.data.bar = false;
+				a.data.msg = "hello";
+			}
+			TestData copy = data;
+			CPPUNIT_ASSERT_EQUAL(copy.foo, 3.f);
+			CPPUNIT_ASSERT_EQUAL(copy.bar, false);
+			CPPUNIT_ASSERT_EQUAL(copy.msg, std::string{"hello"});
+		}
+		
+		void accessorCanGetFields() {
+			Group<TestData> data;
+			{
+				Accessor<TestData> a{data};
+				a.data.foo = 3.f;
+				a.data.bar = false;
+				a.data.msg = "hello";
+			}
+			// now read
+			{
+				Accessor<TestData> a{data};
+				CPPUNIT_ASSERT_EQUAL(a.data.foo, 3.f);
+				CPPUNIT_ASSERT_EQUAL(a.data.bar, false);
+				CPPUNIT_ASSERT_EQUAL(a.data.msg, std::string{"hello"});
+			}
+		}
+		
+		void groupHasCopyCtor() {
+			Group<TestData> tmp;
+			{
+				Accessor<TestData> a{tmp};
+				a.data.foo = 3.f;
+				a.data.bar = false;
+				a.data.msg = "hello";
+			}
+			Group<TestData> data{tmp};
+			TestData copy = data;
+			CPPUNIT_ASSERT_EQUAL(copy.foo, 3.f);
+			CPPUNIT_ASSERT_EQUAL(copy.bar, false);
+			CPPUNIT_ASSERT_EQUAL(copy.msg, std::string{"hello"});
+		}
+		
+		void groupHasMoveCtor() {
+			Group<TestData> tmp;
+			{
+				Accessor<TestData> a{tmp};
+				a.data.foo = 3.f;
+				a.data.bar = false;
+				a.data.msg = "hello";
+			}
+			Group<TestData> data{std::move(tmp)};
+			TestData copy = data;
+			CPPUNIT_ASSERT_EQUAL(copy.foo, 3.f);
+			CPPUNIT_ASSERT_EQUAL(copy.bar, false);
+			CPPUNIT_ASSERT_EQUAL(copy.msg, std::string{"hello"});
+		}
+		
+		void groupHasCopyAssignOp() {
+			Group<TestData> tmp;
+			{
+				Accessor<TestData> a{tmp};
+				a.data.foo = 3.f;
+				a.data.bar = false;
+				a.data.msg = "hello";
+			}
+			Group<TestData> data = tmp;
+			TestData copy = data;
+			CPPUNIT_ASSERT_EQUAL(copy.foo, 3.f);
+			CPPUNIT_ASSERT_EQUAL(copy.bar, false);
+			CPPUNIT_ASSERT_EQUAL(copy.msg, std::string{"hello"});
+		}
+		
+		void groupHasMoveAssignOp() {
+			Group<TestData> tmp;
+			{
+				Accessor<TestData> a{tmp};
+				a.data.foo = 3.f;
+				a.data.bar = false;
+				a.data.msg = "hello";
+			}
+			Group<TestData> data = std::move(tmp);
+			TestData copy = data;
+			CPPUNIT_ASSERT_EQUAL(copy.foo, 3.f);
+			CPPUNIT_ASSERT_EQUAL(copy.bar, false);
+			CPPUNIT_ASSERT_EQUAL(copy.msg, std::string{"hello"});
+		}
+		
+		void mimicRealUse() {
+			struct Settings {
+				struct Foo {
+					float a{5};
+					float b{3};
+					bool enabled{true};
+				};
+				struct Bar {
+					std::string label{"empty"};
+					float bla{0.f};
+				};
+				
+				Group<Foo> foo;
+				Group<Bar> bar;
+			};
+			
+			Settings s;
+			
+			// set bar settings
+			{
+				Accessor<Settings::Bar> tmp{s.bar};
+				tmp.data.label = "hello world";
+				tmp.data.bla = 3.14f;
+			}
+			
+			// read foo settings
+			{
+				Accessor<Settings::Foo> tmp{s.foo};
+				if (tmp.data.enabled) {
+					// do some while locked
+				}
+			}
+			// or:
+			Settings::Foo copy = s.foo;
+			if (copy.enabled) {
+				// do some stuff without locking
+			}
+			CPPUNIT_ASSERT(copy.enabled);
+		}
+};
+
+// Registers the fixture into the 'registry'
+CPPUNIT_TEST_SUITE_REGISTRATION(SyncedSettingsTest);
+