core/stacklist: add tests

Author: outfoxxed

src/core/stacklist.hpp

@@ -7,6 +7,7 @@
 #include <iterator>
 #include <vector>
 
+#include <qlist.h>
 #include <qtypes.h>
 
 template <class T, size_t N>
@@ -40,13 +41,24 @@ class StackList {
 	[[nodiscard]] bool operator==(const StackList<T, N>& other) const {
 		if (other.size != this->size) return false;
 
-		for (size_t i = 0; i < this->size; ++i) {
+		for (size_t i = 0; i != this->size; ++i) {
 			if (this->operator[](i) != other[i]) return false;
 		}
 
 		return true;
 	}
 
+	[[nodiscard]] QList<T> toList() const {
+		QList<T> list;
+		list.reserve(this->size);
+
+		for (const auto& entry: *this) {
+			list.push_back(entry);
+		}
+
+		return list;
+	}
+
 	template <typename Self, typename ListPtr, typename IT>
 	struct BaseIterator {
 		using iterator_category = std::bidirectional_iterator_tag;
@@ -65,6 +77,7 @@ class StackList {
 			++this->i;
 			return *static_cast<Self*>(this);
 		}
+
 		Self& operator--() {
 			--this->i;
 			return *static_cast<Self*>(this);
@@ -75,6 +88,7 @@ class StackList {
 			this->operator++();
 			return v;
 		}
+
 		Self operator--(int) {
 			auto v = *this;
 			this->operator--();

src/core/test/CMakeLists.txt

@@ -7,3 +7,4 @@ endfunction()
 qs_test(transformwatcher transformwatcher.cpp)
 qs_test(ringbuffer ringbuf.cpp)
 qs_test(scriptmodel scriptmodel.cpp)
+qs_test(stacklist stacklist.cpp)

src/core/test/stacklist.cpp

@@ -0,0 +1,92 @@
+#include "stacklist.hpp"
+#include <cstddef>
+
+#include <qlist.h>
+#include <qtest.h>
+#include <qtestcase.h>
+
+#include "../stacklist.hpp"
+
+void TestStackList::push() {
+	StackList<int, 2> list;
+
+	list.push(1);
+	list.push(2);
+
+	QCOMPARE_EQ(list.toList(), QList({1, 2}));
+	QCOMPARE_EQ(list.length(), 2);
+}
+
+void TestStackList::pushAndGrow() {
+	StackList<int, 2> list;
+
+	list.push(1);
+	list.push(2);
+	list.push(3);
+	list.push(4);
+
+	QCOMPARE_EQ(list.toList(), QList({1, 2, 3, 4}));
+	QCOMPARE_EQ(list.length(), 4);
+}
+
+void TestStackList::copy() {
+	StackList<int, 2> list;
+
+	list.push(1);
+	list.push(2);
+	list.push(3);
+	list.push(4);
+
+	QCOMPARE_EQ(list.toList(), QList({1, 2, 3, 4}));
+	QCOMPARE_EQ(list.length(), 4);
+
+	auto list2 = list;
+
+	QCOMPARE_EQ(list2.toList(), QList({1, 2, 3, 4}));
+	QCOMPARE_EQ(list2.length(), 4);
+	QCOMPARE_EQ(list2, list);
+}
+
+void TestStackList::viewVla() {
+	StackList<int, 2> list;
+
+	list.push(1);
+	list.push(2);
+
+	QCOMPARE_EQ(list.toList(), QList({1, 2}));
+	QCOMPARE_EQ(list.length(), 2);
+
+	STACKLIST_VLA_VIEW(int, list, listView);
+
+	QList<int> ql;
+
+	for (size_t i = 0; i != list.length(); ++i) {
+		ql.push_back(listView[i]); // NOLINT
+	}
+
+	QCOMPARE_EQ(ql, list.toList());
+}
+
+void TestStackList::viewVlaGrown() {
+	StackList<int, 2> list;
+
+	list.push(1);
+	list.push(2);
+	list.push(3);
+	list.push(4);
+
+	QCOMPARE_EQ(list.toList(), QList({1, 2, 3, 4}));
+	QCOMPARE_EQ(list.length(), 4);
+
+	STACKLIST_VLA_VIEW(int, list, listView);
+
+	QList<int> ql;
+
+	for (size_t i = 0; i != list.length(); ++i) {
+		ql.push_back(listView[i]); // NOLINT
+	}
+
+	QCOMPARE_EQ(ql, list.toList());
+}
+
+QTEST_MAIN(TestStackList);

src/core/test/stacklist.hpp

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <qobject.h>
+#include <qtmetamacros.h>
+
+class TestStackList: public QObject {
+	Q_OBJECT;
+
+private slots:
+	static void push();
+	static void pushAndGrow();
+	static void copy();
+	static void viewVla();
+	static void viewVlaGrown();
+};