improved matrix tests

include/omath/Matrix.h

@@ -11,6 +11,7 @@ namespace omath
     class Matrix final
     {
     public:
+        Matrix();
         Matrix(size_t rows, size_t columns);
 
         Matrix(const std::initializer_list<std::initializer_list<float>>& rows);
@@ -99,8 +100,8 @@ namespace omath
         ~Matrix();
 
     private:
-        size_t m_rows = 0;
-        size_t m_columns = 0;
-        std::unique_ptr<float[]> m_data = nullptr;
+        size_t m_rows;
+        size_t m_columns;
+        std::unique_ptr<float[]> m_data;
     };
 }

source/matrix.cpp

@@ -83,6 +83,10 @@ namespace omath
         m_columns = other.m_columns;
         m_data = std::move(other.m_data);
 
+        other.m_rows = 0;
+        other.m_columns = 0;
+
+        other.m_data = nullptr;
     }
 
     size_t Matrix::ColumnsCount() const noexcept
@@ -367,4 +371,11 @@ namespace omath
         for (size_t i = 0; i < m_columns*m_rows; ++i)
             At(i / m_rows, i % m_columns) = pRawMatrix[i];
     }
+
+    Matrix::Matrix()
+    {
+        m_columns = 0;
+        m_rows = 0;
+        m_data = nullptr;
+    }
 }

tests/UnitTestMatrix.cpp

@@ -3,15 +3,179 @@
 //
 #include <gtest/gtest.h>
 #include <omath/Matrix.h>
-#include <print>
+#include "omath/Vector3.h"
+
+using namespace omath;
 
 
-TEST(UnitTestMatrix, ToString)
+class UnitTestMatrix : public ::testing::Test
 {
-    omath::Matrix matrix(2, 2);
-    matrix.Set(1.1);
-    const auto str = matrix.ToSrtring();
-
-    std::cout << str;
+protected:
+    Matrix m1;
+    Matrix m2;
 
+    void SetUp() override {
+        m1 = Matrix(2, 2);
+        m2 = Matrix{{1.0f, 2.0f}, {3.0f, 4.0f}};
+    }
+};
+
+// Test constructors
+TEST_F(UnitTestMatrix, Constructor_Size)
+{
+    Matrix m(3, 3);
+    EXPECT_EQ(m.RowCount(), 3);
+    EXPECT_EQ(m.ColumnsCount(), 3);
+}
+
+TEST_F(UnitTestMatrix, Constructor_InitializerList)
+{
+    Matrix m{{1.0f, 2.0f}, {3.0f, 4.0f}};
+    EXPECT_EQ(m.RowCount(), 2);
+    EXPECT_EQ(m.ColumnsCount(), 2);
+    EXPECT_FLOAT_EQ(m.At(0, 0), 1.0f);
+    EXPECT_FLOAT_EQ(m.At(1, 1), 4.0f);
+}
+
+TEST_F(UnitTestMatrix, Constructor_Copy)
+{
+    Matrix m3 = m2;
+    EXPECT_EQ(m3.RowCount(), m2.RowCount());
+    EXPECT_EQ(m3.ColumnsCount(), m2.ColumnsCount());
+    EXPECT_FLOAT_EQ(m3.At(0, 0), m2.At(0, 0));
+}
+
+TEST_F(UnitTestMatrix, Constructor_Move)
+{
+    Matrix m3 = std::move(m2);
+    EXPECT_EQ(m3.RowCount(), 2);
+    EXPECT_EQ(m3.ColumnsCount(), 2);
+    EXPECT_FLOAT_EQ(m3.At(0, 0), 1.0f);
+    EXPECT_EQ(m2.RowCount(), 0);  // m2 should be empty after the move
+    EXPECT_EQ(m2.ColumnsCount(), 0);
+}
+
+// Test matrix operations
+TEST_F(UnitTestMatrix, Operator_Multiplication_Matrix)
+{
+    Matrix m3 = m2 * m2;
+    EXPECT_EQ(m3.RowCount(), 2);
+    EXPECT_EQ(m3.ColumnsCount(), 2);
+    EXPECT_FLOAT_EQ(m3.At(0, 0), 7.0f);
+    EXPECT_FLOAT_EQ(m3.At(1, 1), 22.0f);
+}
+
+TEST_F(UnitTestMatrix, Operator_Multiplication_Vector3)
+{
+    Vector3 v(1.0f, 2.0f, 3.0f);
+    Matrix m3(3, 3, new float[9]{1, 0, 0, 0, 1, 0, 0, 0, 1});
+    Matrix result = m3 * v;
+
+    EXPECT_FLOAT_EQ(result.At(0, 0), 1.0f);
+    EXPECT_FLOAT_EQ(result.At(1, 0), 2.0f);
+    EXPECT_FLOAT_EQ(result.At(2, 0), 3.0f);
+}
+
+TEST_F(UnitTestMatrix, Operator_Multiplication_Scalar)
+{
+    Matrix m3 = m2 * 2.0f;
+    EXPECT_FLOAT_EQ(m3.At(0, 0), 2.0f);
+    EXPECT_FLOAT_EQ(m3.At(1, 1), 8.0f);
+}
+
+TEST_F(UnitTestMatrix, Operator_Division_Scalar)
+{
+    Matrix m3 = m2 / 2.0f;
+    EXPECT_FLOAT_EQ(m3.At(0, 0), 0.5f);
+    EXPECT_FLOAT_EQ(m3.At(1, 1), 2.0f);
+}
+
+// Test matrix functions
+TEST_F(UnitTestMatrix, Transpose)
+{
+    Matrix m3 = m2.Transpose();
+    EXPECT_FLOAT_EQ(m3.At(0, 1), 3.0f);
+    EXPECT_FLOAT_EQ(m3.At(1, 0), 2.0f);
+}
+
+TEST_F(UnitTestMatrix, Determinant)
+{
+    float det = m2.Determinant();
+    EXPECT_FLOAT_EQ(det, -2.0f);
+}
+
+TEST_F(UnitTestMatrix, Minor)
+{
+    float minor = m2.Minor(0, 0);
+    EXPECT_FLOAT_EQ(minor, 4.0f);
+}
+
+TEST_F(UnitTestMatrix, AlgComplement)
+{
+    float algComp = m2.AlgComplement(0, 0);
+    EXPECT_FLOAT_EQ(algComp, 4.0f);
+}
+
+TEST_F(UnitTestMatrix, Strip)
+{
+    Matrix m3 = m2.Strip(0, 0);
+    EXPECT_EQ(m3.RowCount(), 1);
+    EXPECT_EQ(m3.ColumnsCount(), 1);
+    EXPECT_FLOAT_EQ(m3.At(0, 0), 4.0f);
+}
+
+TEST_F(UnitTestMatrix, ProjectionMatrix)
+{
+    Matrix proj = Matrix::ProjectionMatrix(45.0f, 1.33f, 0.1f, 100.0f);
+    EXPECT_EQ(proj.RowCount(), 4);
+    EXPECT_EQ(proj.ColumnsCount(), 4);
+    // Further checks on projection matrix elements could be added
+}
+
+// Test other member functions
+TEST_F(UnitTestMatrix, Set)
+{
+    m1.Set(3.0f);
+    EXPECT_FLOAT_EQ(m1.At(0, 0), 3.0f);
+    EXPECT_FLOAT_EQ(m1.At(1, 1), 3.0f);
+}
+
+TEST_F(UnitTestMatrix, Sum)
+{
+    float sum = m2.Sum();
+    EXPECT_FLOAT_EQ(sum, 10.0f);
+}
+
+TEST_F(UnitTestMatrix, Clear)
+{
+    m2.Clear();
+    EXPECT_FLOAT_EQ(m2.At(0, 0), 0.0f);
+    EXPECT_FLOAT_EQ(m2.At(1, 1), 0.0f);
+}
+
+TEST_F(UnitTestMatrix, ToString)
+{
+    std::string str = m2.ToSrtring();
+    EXPECT_FALSE(str.empty());
+}
+
+// Test assignment operators
+TEST_F(UnitTestMatrix, AssignmentOperator_Copy)
+{
+    Matrix m3(2, 2);
+    m3 = m2;
+    EXPECT_EQ(m3.RowCount(), m2.RowCount());
+    EXPECT_EQ(m3.ColumnsCount(), m2.ColumnsCount());
+    EXPECT_FLOAT_EQ(m3.At(0, 0), m2.At(0, 0));
+}
+
+TEST_F(UnitTestMatrix, AssignmentOperator_Move)
+{
+    Matrix m3(2, 2);
+    m3 = std::move(m2);
+    EXPECT_EQ(m3.RowCount(), 2);
+    EXPECT_EQ(m3.ColumnsCount(), 2);
+    EXPECT_FLOAT_EQ(m3.At(0, 0), 1.0f);
+    EXPECT_EQ(m2.RowCount(), 0);  // m2 should be empty after the move
+    EXPECT_EQ(m2.ColumnsCount(), 0);
 }