Merge branch 'settings'

1 files changed, 135 insertions, 0 deletions

diff --git a/test/atomictest.cc b/test/atomictest.cc
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--- /dev/null
+++ b/test/atomictest.cc
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            atomic.cc
+ *
+ *  Wed Mar 23 09:17:12 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 <atomic.h>
+
+class AtomicTest
+	: public CppUnit::TestFixture {
+		
+	CPPUNIT_TEST_SUITE(AtomicTest);
+	CPPUNIT_TEST(podAtomicsUseStandardImpl);
+	CPPUNIT_TEST(nonPodAtomicsUseOwnImpl);
+	CPPUNIT_TEST(podAtomicCanBeDefaultInitialized);
+	CPPUNIT_TEST(nonPodAtomicCanBeDefaultInitialized);
+	CPPUNIT_TEST(podAtomicCanBeValueInitialized);
+	CPPUNIT_TEST(nonPodAtomicCanBeValueInitialized);
+	CPPUNIT_TEST(podAtomicCanBeValueAssigned);
+	CPPUNIT_TEST(nonPodAtomicCanBeValueAssigned);
+	CPPUNIT_TEST(podAtomicsAreLockFree);
+	CPPUNIT_TEST_SUITE_END();
+	
+	public:
+		void setUp() {}
+		void tearDown() {}
+		
+		void podAtomicsUseStandardImpl() {
+			CPPUNIT_ASSERT(isUsingStandardImpl<bool>());
+			CPPUNIT_ASSERT(isUsingStandardImpl<unsigned short int>());
+			CPPUNIT_ASSERT(isUsingStandardImpl<short int>());
+			CPPUNIT_ASSERT(isUsingStandardImpl<unsigned int>());
+			CPPUNIT_ASSERT(isUsingStandardImpl<int>());
+			CPPUNIT_ASSERT(isUsingStandardImpl<unsigned long int>());
+			CPPUNIT_ASSERT(isUsingStandardImpl<long int>());
+			CPPUNIT_ASSERT(isUsingStandardImpl<unsigned long long int>());
+			CPPUNIT_ASSERT(isUsingStandardImpl<long long int>());
+			CPPUNIT_ASSERT(isUsingStandardImpl<float>());
+			CPPUNIT_ASSERT(isUsingStandardImpl<double>());
+			CPPUNIT_ASSERT(isUsingStandardImpl<long double>());
+		}
+		
+		void nonPodAtomicsUseOwnImpl() {
+			CPPUNIT_ASSERT(!isUsingStandardImpl<std::string>());
+		}
+		
+		void podAtomicCanBeDefaultInitialized() {
+			Atomic<int> i;
+			// note: i is initialized with garbage
+		}
+		
+		void nonPodAtomicCanBeDefaultInitialized() {
+			Atomic<std::string> s;
+			CPPUNIT_ASSERT_EQUAL(s.load(), std::string{});
+		}
+		
+		void podAtomicCanBeValueInitialized() {
+			Atomic<int> i{5};
+			CPPUNIT_ASSERT_EQUAL(i.load(), 5);
+		}
+		
+		void nonPodAtomicCanBeValueInitialized() {
+			Atomic<std::string> s{"hello world"};
+			CPPUNIT_ASSERT_EQUAL(s.load(), std::string{"hello world"});
+		}
+		
+		void podAtomicCanBeValueAssigned() {
+			Atomic<int> i;
+			i = 5;
+			CPPUNIT_ASSERT_EQUAL(i.load(), 5);
+		}
+		
+		void nonPodAtomicCanBeValueAssigned() {
+			Atomic<std::string> s;
+			s = "hello world";
+			CPPUNIT_ASSERT_EQUAL(s.load(), std::string{"hello world"});
+		}
+		
+		void podAtomicsAreLockFree() {
+			CPPUNIT_ASSERT(isLockFree<bool>());
+			CPPUNIT_ASSERT(isLockFree<unsigned short int>());
+			CPPUNIT_ASSERT(isLockFree<short int>());
+			CPPUNIT_ASSERT(isLockFree<unsigned int>());
+			CPPUNIT_ASSERT(isLockFree<int>());
+			CPPUNIT_ASSERT(isLockFree<unsigned long int>());
+			CPPUNIT_ASSERT(isLockFree<long int>());
+			CPPUNIT_ASSERT(isLockFree<unsigned long long int>());
+			CPPUNIT_ASSERT(isLockFree<long long int>());
+			CPPUNIT_ASSERT(isLockFree<float>());
+			CPPUNIT_ASSERT(isLockFree<double>());
+			
+			// compile error: undefined reference to `__atomic_is_lock_free'
+			//CPPUNIT_ASSERT(isLockFree<long double>());
+		}
+		
+		// todo: further testing
+		
+	private:
+		template <typename T>
+		bool isUsingStandardImpl() {
+			return std::is_base_of<std::atomic<T>, Atomic<T>>::value;
+		}
+		
+		template <typename T>
+		bool isLockFree() {
+			Atomic<T> a;
+			return a.is_lock_free();
+		}
+};
+
+// Registers the fixture into the 'registry'
+CPPUNIT_TEST_SUITE_REGISTRATION(AtomicTest);
+