TESTS: Add unit tests for PtrList

tests/common/ptrlist.cpp

@@ -0,0 +1,222 @@
+/* xoreos - A reimplementation of BioWare's Aurora engine
+ *
+ * xoreos is the legal property of its developers, whose names
+ * can be found in the AUTHORS file distributed with this source
+ * distribution.
+ *
+ * xoreos 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.
+ *
+ * xoreos 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 xoreos. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file
+ *  Unit tests for our PtrList templates.
+ */
+
+#include "gtest/gtest.h"
+
+#include "src/common/system.h"
+#include "src/common/ptrlist.h"
+
+static unsigned int kConstructorCalled = 0;
+static unsigned int kDestructorCalled  = 0;
+
+class TestClass {
+public:
+	TestClass () { kConstructorCalled++; }
+	~TestClass() { kDestructorCalled++; }
+};
+
+class PtrList : public ::testing::Test {
+protected:
+	void SetUp() {
+		kConstructorCalled = 0;
+		kDestructorCalled = 0;
+	}
+};
+
+GTEST_TEST_F(PtrList, createAndDestroy) {
+	{
+		Common::PtrList<TestClass> ptrList;
+
+		ptrList.push_back(new TestClass);
+		ptrList.push_back(new TestClass);
+		ptrList.push_front(new TestClass);
+		ptrList.push_front(new TestClass);
+
+		EXPECT_EQ(kConstructorCalled, 4);
+		EXPECT_EQ(kDestructorCalled , 0);
+	}
+
+	EXPECT_EQ(kConstructorCalled, 4);
+	EXPECT_EQ(kDestructorCalled , 4);
+}
+
+GTEST_TEST_F(PtrList, clear) {
+	Common::PtrList<TestClass> ptrList;
+
+	ptrList.push_back(new TestClass);
+	ptrList.clear();
+
+	EXPECT_EQ(kConstructorCalled, 1);
+	EXPECT_EQ(kDestructorCalled , 1);
+}
+
+GTEST_TEST_F(PtrList, resize) {
+	Common::PtrList<TestClass> ptrList;
+
+	ptrList.push_back(new TestClass);
+	ptrList.push_back(new TestClass);
+	ptrList.push_back(new TestClass);
+
+	ptrList.resize(1);
+
+	EXPECT_EQ(ptrList.size(), 1);
+	EXPECT_EQ(kConstructorCalled, 3);
+	EXPECT_EQ(kDestructorCalled , 2);
+
+	ptrList.resize(3);
+
+	EXPECT_EQ(ptrList.size(), 3);
+	EXPECT_EQ(kConstructorCalled, 3);
+	EXPECT_EQ(kDestructorCalled , 2);
+
+	ptrList.clear();
+
+	EXPECT_EQ(ptrList.size(), 0);
+	EXPECT_EQ(kConstructorCalled, 3);
+	EXPECT_EQ(kDestructorCalled , 3);
+
+	ptrList.resize(1);
+	EXPECT_EQ(ptrList.size(), 1);
+	EXPECT_EQ(kConstructorCalled, 3);
+	EXPECT_EQ(kDestructorCalled , 3);
+
+	EXPECT_EQ(ptrList.front(), static_cast<TestClass *>(0));
+}
+
+GTEST_TEST_F(PtrList, popFront) {
+	Common::PtrList<TestClass> ptrList;
+
+	ptrList.push_back(new TestClass);
+	ptrList.pop_front();
+
+	EXPECT_EQ(kConstructorCalled, 1);
+	EXPECT_EQ(kDestructorCalled , 1);
+}
+
+GTEST_TEST_F(PtrList, popBack) {
+	Common::PtrList<TestClass> ptrList;
+
+	ptrList.push_back(new TestClass);
+	ptrList.pop_back();
+
+	EXPECT_EQ(kConstructorCalled, 1);
+	EXPECT_EQ(kDestructorCalled , 1);
+}
+
+GTEST_TEST_F(PtrList, erasePosition) {
+	Common::PtrList<TestClass> ptrList;
+
+	ptrList.push_back(new TestClass);
+	ptrList.erase(ptrList.begin());
+
+	EXPECT_EQ(kConstructorCalled, 1);
+	EXPECT_EQ(kDestructorCalled , 1);
+}
+
+GTEST_TEST_F(PtrList, eraseRange) {
+	Common::PtrList<TestClass> ptrList;
+
+	ptrList.push_back(new TestClass);
+	ptrList.push_back(new TestClass);
+	ptrList.push_back(new TestClass);
+	ptrList.erase(ptrList.begin(), ptrList.end());
+
+	EXPECT_EQ(kConstructorCalled, 3);
+	EXPECT_EQ(kDestructorCalled , 3);
+}
+
+GTEST_TEST_F(PtrList, remove) {
+	Common::PtrList<TestClass> ptrList;
+
+	TestClass *testClass = new TestClass;
+
+	ptrList.push_back(new TestClass);
+	ptrList.push_back(testClass);
+	ptrList.push_back(new TestClass);
+
+	ptrList.remove(testClass);
+
+	EXPECT_EQ(kConstructorCalled, 3);
+	EXPECT_EQ(kDestructorCalled , 1);
+}
+
+static bool testPred(const TestClass * const UNUSED(x)) {
+	return true;
+}
+
+GTEST_TEST_F(PtrList, removeIf) {
+	Common::PtrList<TestClass> ptrList;
+
+	ptrList.push_back(new TestClass);
+	ptrList.push_back(new TestClass);
+	ptrList.push_back(new TestClass);
+
+	ptrList.remove_if(testPred);
+
+	EXPECT_EQ(kConstructorCalled, 3);
+	EXPECT_EQ(kDestructorCalled , 3);
+}
+
+GTEST_TEST_F(PtrList, assign) {
+	Common::PtrList<TestClass> ptrList;
+	ptrList.push_back(new TestClass);
+	ptrList.push_back(new TestClass);
+	ptrList.push_back(new TestClass);
+
+	std::list<TestClass *> list;
+	list.push_back(new TestClass);
+	list.push_back(new TestClass);
+	list.push_back(new TestClass);
+
+	EXPECT_EQ(kConstructorCalled, 6);
+	EXPECT_EQ(kDestructorCalled , 0);
+
+	ptrList.assign(list.begin(), list.end());
+	list.clear();
+
+	EXPECT_EQ(kConstructorCalled, 6);
+	EXPECT_EQ(kDestructorCalled , 3);
+
+	ptrList.clear();
+
+	EXPECT_EQ(kConstructorCalled, 6);
+	EXPECT_EQ(kDestructorCalled , 6);
+}
+
+GTEST_TEST_F(PtrList, assignN) {
+	Common::PtrList<TestClass> ptrList;
+	ptrList.push_back(new TestClass);
+	ptrList.push_back(new TestClass);
+	ptrList.push_back(new TestClass);
+
+	ptrList.assign(1, new TestClass);
+
+	EXPECT_EQ(kConstructorCalled, 4);
+	EXPECT_EQ(kDestructorCalled , 3);
+
+	ptrList.clear();
+
+	EXPECT_EQ(kConstructorCalled, 4);
+	EXPECT_EQ(kDestructorCalled , 4);
+}

tests/common/rules.mk

@@ -39,3 +39,8 @@ check_PROGRAMS                          += tests/common/test_disposableptr
 tests_common_test_disposableptr_SOURCES  = tests/common/disposableptr.cpp
 tests_common_test_disposableptr_LDADD    = $(common_LIBS)
 tests_common_test_disposableptr_CXXFLAGS = $(test_CXXFLAGS)
+
+check_PROGRAMS                    += tests/common/test_ptrlist
+tests_common_test_ptrlist_SOURCES  = tests/common/ptrlist.cpp
+tests_common_test_ptrlist_LDADD    = $(common_LIBS)
+tests_common_test_ptrlist_CXXFLAGS = $(test_CXXFLAGS)