new file mode 100644
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2024, Ideas on Board Oy
+ *
+ * Vector tests
+ */
+
+#include "libcamera/internal/matrix.h"
+
+#include <cmath>
+#include <iostream>
+
+#include "test.h"
+
+using namespace libcamera;
+
+#define ASSERT_EQ(a, b) \
+ if ((a) != (b)) { \
+ std::cout << #a " != " #b << " (line " << __LINE__ << ")" \
+ << std::endl; \
+ return TestFail; \
+ }
+
+class MatrixTest : public Test
+{
+protected:
+ int run()
+ {
+ Matrix<double, 3, 3> m1;
+
+ ASSERT_EQ(m1[0][0], 0.0);
+ ASSERT_EQ(m1[0][1], 0.0);
+
+ constexpr Matrix<float, 2, 2> m2 = Matrix<float, 2, 2>().identity();
+ ASSERT_EQ(m2[0][0], 1.0);
+ ASSERT_EQ(m2[0][1], 0.0);
+ ASSERT_EQ(m2[1][0], 0.0);
+ ASSERT_EQ(m2[1][1], 1.0);
+
+ Matrix<float, 2, 2> m3{ { 2.0, 0.0, 0.0, 2.0 } };
+ Matrix<float, 2, 2> m4 = m3.inverse();
+
+ Matrix<float, 2, 2> m5 = m3 * m4;
+ ASSERT_EQ(m5[0][0], 1.0);
+ ASSERT_EQ(m5[0][1], 0.0);
+ ASSERT_EQ(m5[1][0], 0.0);
+ ASSERT_EQ(m5[1][1], 1.0);
+
+ return TestPass;
+ }
+};
+
+TEST_REGISTER(MatrixTest)
@@ -60,6 +60,7 @@ internal_tests = [
{'name': 'file', 'sources': ['file.cpp']},
{'name': 'flags', 'sources': ['flags.cpp']},
{'name': 'hotplug-cameras', 'sources': ['hotplug-cameras.cpp']},
+ {'name': 'matrix', 'sources': ['matrix.cpp']},
{'name': 'message', 'sources': ['message.cpp']},
{'name': 'object', 'sources': ['object.cpp']},
{'name': 'object-delete', 'sources': ['object-delete.cpp']},