Initial commit of glContainer

A std::vector like container backed by an OpenGL buffer.

1 files changed, 223 insertions, 0 deletions

diff --git a/test/test-glContainer.cpp b/test/test-glContainer.cpp
new file mode 100644
index 0000000..efb8f71
--- /dev/null
+++ b/test/test-glContainer.cpp
@@ -0,0 +1,223 @@
+#define BOOST_TEST_MODULE glContainer
+
+#include "testHelpers.h"
+#include "testMainWindow.h"
+#include "ui/applicationBase.h"
+#include <boost/test/data/test_case.hpp>
+#include <boost/test/unit_test.hpp>
+
+#include "glContainer.h"
+
+BOOST_TEST_DONT_PRINT_LOG_VALUE(glContainer<int>::iterator);
+BOOST_TEST_DONT_PRINT_LOG_VALUE(glContainer<int>::const_iterator);
+BOOST_TEST_DONT_PRINT_LOG_VALUE(glContainer<int>::reserve_iterator);
+BOOST_TEST_DONT_PRINT_LOG_VALUE(glContainer<int>::const_reserve_iterator);
+
+BOOST_GLOBAL_FIXTURE(ApplicationBase);
+BOOST_GLOBAL_FIXTURE(TestMainWindow);
+
+BOOST_FIXTURE_TEST_SUITE(i, glContainer<int>)
+
+BOOST_AUTO_TEST_CASE(createDestroy, *boost::unit_test::timeout(1))
+{
+	BOOST_CHECK(!data_);
+	BOOST_CHECK_NO_THROW(map());
+	BOOST_REQUIRE(data_);
+	BOOST_CHECK_NO_THROW(unmap());
+	BOOST_CHECK(!data_);
+}
+
+BOOST_AUTO_TEST_CASE(push_back_test, *boost::unit_test::timeout(1))
+{
+	BOOST_CHECK_EQUAL(capacity_, 1);
+	BOOST_CHECK_EQUAL(size_, 0);
+	BOOST_CHECK_NO_THROW(push_back(1));
+	BOOST_CHECK_NO_THROW(push_back(2));
+	BOOST_CHECK_NO_THROW(push_back(3));
+	BOOST_CHECK_NO_THROW(push_back(4));
+	BOOST_CHECK_EQUAL(capacity_, 4);
+	BOOST_CHECK_EQUAL(size_, 4);
+	{
+		std::array expected1 {1, 2, 3, 4};
+		BOOST_CHECK_EQUAL_COLLECTIONS(begin(), end(), expected1.begin(), expected1.end());
+		BOOST_CHECK_EQUAL_COLLECTIONS(rbegin(), rend(), expected1.rbegin(), expected1.rend());
+	}
+}
+
+BOOST_AUTO_TEST_CASE(emplace_back_test, *boost::unit_test::timeout(1))
+{
+	BOOST_CHECK_EQUAL(capacity_, 1);
+	BOOST_CHECK_EQUAL(size_, 0);
+
+	BOOST_CHECK_NO_THROW(emplace_back(1));
+	BOOST_CHECK_NO_THROW(emplace_back(2));
+	BOOST_CHECK_EQUAL(capacity_, 2);
+	BOOST_CHECK_EQUAL(size_, 2);
+
+	BOOST_CHECK_NO_THROW(reserve(5));
+	BOOST_CHECK_EQUAL(capacity_, 5);
+	BOOST_CHECK_EQUAL(size_, 2);
+
+	BOOST_CHECK_NO_THROW(emplace_back(3));
+	BOOST_CHECK_NO_THROW(emplace_back(4));
+	BOOST_CHECK_EQUAL(capacity_, 5);
+	BOOST_CHECK_EQUAL(size_, 4);
+
+	{
+		std::array expected1 {1, 2, 3, 4};
+		BOOST_CHECK_EQUAL_COLLECTIONS(begin(), end(), expected1.begin(), expected1.end());
+		BOOST_CHECK_EQUAL_COLLECTIONS(rbegin(), rend(), expected1.rbegin(), expected1.rend());
+	}
+
+	BOOST_CHECK_NO_THROW(emplace_back(5));
+	BOOST_CHECK_EQUAL(capacity_, 5);
+	BOOST_CHECK_EQUAL(size_, 5);
+	BOOST_CHECK_NO_THROW(emplace_back(6));
+	BOOST_CHECK_NO_THROW(emplace_back(7));
+	BOOST_CHECK_EQUAL(capacity_, 7);
+	BOOST_CHECK_EQUAL(size_, 7);
+
+	{
+		std::array expected2 {1, 2, 3, 4, 5, 6, 7};
+		BOOST_CHECK_EQUAL_COLLECTIONS(begin(), end(), expected2.begin(), expected2.end());
+		BOOST_CHECK_EQUAL_COLLECTIONS(rbegin(), rend(), expected2.rbegin(), expected2.rend());
+	}
+
+	BOOST_CHECK_EQUAL(7, end() - begin());
+	BOOST_CHECK_EQUAL(7, rend() - rbegin());
+}
+
+BOOST_AUTO_TEST_CASE(resize_test)
+{
+	BOOST_CHECK_NO_THROW(push_back(1));
+	BOOST_CHECK_NO_THROW(emplace_back(2));
+	BOOST_CHECK_NO_THROW(resize(4));
+	BOOST_CHECK_EQUAL(capacity_, 4);
+	BOOST_CHECK_EQUAL(size_, 4);
+	{
+		std::array expected1 {1, 2, 0, 0};
+		BOOST_CHECK_EQUAL_COLLECTIONS(begin(), end(), expected1.begin(), expected1.end());
+	}
+
+	BOOST_CHECK_NO_THROW(resize(1));
+	BOOST_CHECK_EQUAL(capacity_, 1);
+	BOOST_CHECK_EQUAL(size_, 1);
+	{
+		std::array expected2 {1};
+		BOOST_CHECK_EQUAL_COLLECTIONS(begin(), end(), expected2.begin(), expected2.end());
+	}
+
+	BOOST_CHECK_NO_THROW(resize(1));
+	BOOST_CHECK_EQUAL(capacity_, 1);
+	BOOST_CHECK_EQUAL(size_, 1);
+
+	BOOST_CHECK_NO_THROW(resize(0));
+	BOOST_CHECK_EQUAL(capacity_, 1);
+	BOOST_CHECK_EQUAL(size_, 0);
+	BOOST_CHECK_EQUAL(begin(), end());
+	BOOST_CHECK_EQUAL(rbegin(), rend());
+}
+
+BOOST_AUTO_TEST_CASE(shrink_to_fit_test)
+{
+	BOOST_CHECK_NO_THROW(reserve(4));
+	BOOST_CHECK_NO_THROW(emplace_back(1));
+	BOOST_CHECK_NO_THROW(emplace_back(2));
+	BOOST_CHECK_EQUAL(capacity_, 4);
+	BOOST_CHECK_EQUAL(size_, 2);
+	{
+		std::array expected1 {1, 2};
+		BOOST_CHECK_EQUAL_COLLECTIONS(begin(), end(), expected1.begin(), expected1.end());
+	}
+	BOOST_CHECK_NO_THROW(shrink_to_fit());
+	BOOST_CHECK_EQUAL(capacity_, 2);
+	BOOST_CHECK_EQUAL(size_, 2);
+	{
+		std::array expected1 {1, 2};
+		BOOST_CHECK_EQUAL_COLLECTIONS(begin(), end(), expected1.begin(), expected1.end());
+	}
+
+	BOOST_CHECK_NO_THROW(shrink_to_fit());
+	BOOST_CHECK_EQUAL(capacity(), 2);
+	BOOST_CHECK_EQUAL(size(), 2);
+
+	BOOST_CHECK_NO_THROW(clear());
+	BOOST_CHECK_EQUAL(capacity(), 2);
+	BOOST_CHECK_EQUAL(size(), 0);
+}
+
+BOOST_AUTO_TEST_CASE(getters)
+{
+	BOOST_CHECK(empty());
+	BOOST_CHECK_NO_THROW(emplace_back(1));
+	BOOST_CHECK(!empty());
+	BOOST_CHECK_NO_THROW(emplace_back(2));
+	BOOST_CHECK_EQUAL(1, front());
+	BOOST_CHECK_EQUAL(2, back());
+	BOOST_CHECK_EQUAL(1, at(0));
+	BOOST_CHECK_EQUAL(2, at(1));
+	BOOST_CHECK_EQUAL(1, (*this)[0]);
+	BOOST_CHECK_EQUAL(2, (*this)[1]);
+	BOOST_CHECK_EQUAL(data_, data());
+	BOOST_CHECK_THROW(std::ignore = at(2), std::out_of_range);
+
+	const auto & constCont {*this};
+	BOOST_CHECK_EQUAL(1, constCont.front());
+	BOOST_CHECK_EQUAL(2, constCont.back());
+	{
+		std::array expected1 {1, 2};
+		BOOST_CHECK_EQUAL_COLLECTIONS(constCont.begin(), constCont.end(), expected1.begin(), expected1.end());
+		BOOST_CHECK_EQUAL_COLLECTIONS(constCont.rbegin(), constCont.rend(), expected1.rbegin(), expected1.rend());
+		BOOST_CHECK_EQUAL_COLLECTIONS(constCont.cbegin(), constCont.cend(), expected1.cbegin(), expected1.cend());
+		BOOST_CHECK_EQUAL_COLLECTIONS(constCont.crbegin(), constCont.crend(), expected1.crbegin(), expected1.crend());
+	}
+	BOOST_CHECK_EQUAL(1, constCont.at(0));
+	BOOST_CHECK_EQUAL(2, constCont.at(1));
+	BOOST_CHECK_EQUAL(1, constCont[0]);
+	BOOST_CHECK_EQUAL(2, constCont[1]);
+	BOOST_CHECK_EQUAL(data_, constCont.data());
+	BOOST_CHECK_THROW(std::ignore = constCont.at(2), std::out_of_range);
+}
+
+BOOST_AUTO_TEST_CASE(random_access)
+{
+	BOOST_CHECK_NO_THROW(emplace_back(1));
+	BOOST_CHECK_NO_THROW(emplace_back(2));
+	BOOST_CHECK_NO_THROW(emplace_back(3));
+
+	auto i = begin();
+	BOOST_CHECK_EQUAL(1, *i);
+	BOOST_CHECK_EQUAL(2, *++i);
+	BOOST_CHECK_EQUAL(2, *i++);
+	BOOST_CHECK_EQUAL(3, *i);
+	BOOST_CHECK_EQUAL(3, *i--);
+	BOOST_CHECK_EQUAL(2, *i);
+	BOOST_CHECK_EQUAL(1, *--i);
+	BOOST_CHECK_EQUAL(1, *i);
+}
+
+BOOST_AUTO_TEST_SUITE_END();
+
+struct C {
+	int x;
+	float y;
+};
+
+BOOST_FIXTURE_TEST_SUITE(c, glContainer<C>)
+
+BOOST_AUTO_TEST_CASE(basic)
+{
+	BOOST_CHECK_NO_THROW(emplace_back(1, 2.f));
+	BOOST_CHECK_EQUAL(1, begin()->x);
+	BOOST_CHECK_EQUAL(2.f, begin()->y);
+	BOOST_CHECK_NO_THROW(begin()->x = 3);
+	BOOST_CHECK_EQUAL(3, begin()->x);
+
+	BOOST_CHECK_NO_THROW(push_back(C {4, 5.f}));
+	BOOST_CHECK_EQUAL(3, begin()->x);
+	BOOST_CHECK_EQUAL(2.f, begin()->y);
+	BOOST_CHECK_EQUAL(4, rbegin()->x);
+	BOOST_CHECK_EQUAL(5.f, rbegin()->y);
+}
+
+BOOST_AUTO_TEST_SUITE_END();