Merge branch 'project_tests'

CMakeLists.txt

@@ -19,6 +19,7 @@ set(SRC_FILES
         ${CMAKE_CURRENT_LIST_DIR}/src/main.cpp
         ${CMAKE_CURRENT_LIST_DIR}/src/gamecube.cpp
         src/gamematrix.cpp
+        docs/tests.cpp
 )
 
 ##Tom: prev: ${CMAKE_CURRENT_LIST_DIR}/linux -> now /include

docs/tests.cpp

@@ -0,0 +1,137 @@
+//
+// Created by marco on 03.11.2025.
+// Changeb by marco on 16.11.2025
+
+#include <iostream>
+#include <cmath>
+#include "gamematrix.h"
+
+using namespace Matrix3D;
+
+bool nearlyEqual(double a, double b, double eps = 1e-6) {
+    return std::abs(a - b) < eps;
+}
+
+void test_matmul_identity() {
+    Mat4 A = identity();
+    Mat4 B = identity();
+    Mat4 R = matmul(A, B);
+
+    std::cout << "Test matmul: Identity * Identity -> Identity: ";
+
+    bool ok = true;
+    for(int i=0;i<4;i++){
+        for(int j=0;j<4;j++){
+            double expected = (i==j ? 1.0 : 0.0);
+            if(!nearlyEqual(R[i][j], expected)) ok = false;
+        }
+    }
+
+    std::cout << (ok ? "OK\n" : "FAIL\n");
+}
+
+void test_matmul_example() {
+    Mat4 A = {{
+        {{1, 2, 3, 4}},
+        {{0, 1, 2, 3}},
+        {{0, 0, 1, 2}},
+        {{0, 0, 0, 1}}
+    }};
+
+    Mat4 B = {{
+        {{1, 0, 0, 0}},
+        {{1, 1, 0, 0}},
+        {{1, 1, 1, 0}},
+        {{1, 1, 1, 1}}
+    }};
+
+    Mat4 R = matmul(A, B);
+
+    std::cout << "Test matmul: Beispielmatrizen A * B: ";
+
+    // Erwartete Matrix mit Handrechnung:
+    Mat4 Expected = {{
+        {{1+2+3+4,   2+3+4,   3+4,   4}},
+        {{0+1+2+3,   1+2+3,   2+3,   3}},
+        {{0+0+1+2,   0+1+2,   1+2,   2}},
+        {{1,         1,       1,     1}}
+    }};
+
+    bool ok = true;
+    for(int i=0;i<4;i++){
+        for(int j=0;j<4;j++){
+            if(!nearlyEqual(R[i][j], Expected[i][j])) ok = false;
+        }
+    }
+
+    std::cout << (ok ? "OK\n" : "FAIL\n");
+}
+
+void test_translate() {
+    Vec3 v{1,2,3};
+    Mat4 T = translate({5,-2,1});
+    Vec3 out = T * v;
+
+    std::cout << "Test translate (Vec3{1,2,3} + {5,-2,1}): ";
+
+    if(nearlyEqual(out.x, 6) && nearlyEqual(out.y, 0) && nearlyEqual(out.z, 4))
+        std::cout << "OK\n";
+    else
+        std::cout << "FAIL (" << out.x << "," << out.y << "," << out.z << ")\n";
+}
+
+void test_rotZ_90() {
+    Vec3 v{1,0,0};
+    Mat4 Rm = rot3D(90, 'z');
+    Vec3 out = Rm * v;
+
+    std::cout << "Test rot3D Z 90° (1,0,0 -> 0,1,0): ";
+
+    if(nearlyEqual(out.x, 0) && nearlyEqual(out.y, 1))
+        std::cout << "OK\n";
+    else
+        std::cout << "FAIL (" << out.x << "," << out.y << "," << out.z << ")\n";
+}
+
+void test_rotX_180() {
+    Vec3 v{0,1,0};
+    Mat4 Rm = rot3D(180, 'x');
+    Vec3 out = Rm * v;
+
+    std::cout << "Test rot3D X 180° (0,1,0 -> 0,-1,0): ";
+
+    if(nearlyEqual(out.y, -1))
+        std::cout << "OK\n";
+    else
+        std::cout << "FAIL (" << out.x << "," << out.y << "," << out.z << ")\n";
+}
+
+void test_rotY_270() {
+    Vec3 v{1,0,0};
+    Mat4 Rm = rot3D(270, 'y');
+    Vec3 out = Rm * v;
+
+    std::cout << "Test rot3D Y 270° (1,0,0 -> 0,0,-1): ";
+
+    if(nearlyEqual(out.x, 0) && nearlyEqual(out.z, -1))
+        std::cout << "OK\n";
+    else
+        std::cout << "FAIL (" << out.x << "," << out.y << "," << out.z << ")\n";
+}
+
+int main() {
+    std::cout << "===== Matrix3D Tests =====\n";
+
+    test_matmul_identity();
+    test_matmul_example();
+
+    test_translate();
+
+    test_rotZ_90();
+    test_rotX_180();
+    test_rotY_270();
+
+    std::cout << "==========================\n";
+    return 0;
+}
+

docs/tests.txt

@@ -0,0 +1,42 @@
+========================================================
+Projekt: gamematrix (C++ Library)
+Rolle: Tester
+Datei: tests.txt
+Datum: ____________________
+Team: ____________________
+========================================================
+
+# ----------------------------
+# 1. Testplan Übersicht
+# ----------------------------
+Ziel: Überprüfung der Funktionen matmul(), translate(), rot3D().
+
+| Funktion      | Testfall                  | Eingabe                      | Erwartetes Ergebnis               | Bemerkung                  |
+|---------------|---------------------------|------------------------------|-----------------------------------|----------------------------|
+| matmul        | Identity * Identity       | 4x4 Identity Matrizen        | Identity                          | Basisfall                  |
+| matmul        | Beispielmatrizen          | A=[[...]], B=[[...]]         | C=[[...]]                         | Prüfen mit Handrechnung    |
+| translate     | Verschiebung              | Vec3 {1,2,3}                 | Matrix mit Translation 1,2,3      | Prüfen letzte Spalte       |
+| rot3D         | Rotation Z 90°            | angle_deg=90, axis='z'       | (1,0,0) -> (0,1,0)                | Prüfen Anwendung auf Vektor|
+| rot3D         | Rotation X 180°           | angle_deg=180, axis='x'      | (0,1,0) -> (0,-1,0)               | Prüfen Anwendung auf Vektor|
+| rot3D         | Rotation Y 270°           | angle_deg=270, axis='y'      | (1,0,0) -> (0,0,-1)               | Prüfen Anwendung auf Vektor|
+
+
+# ----------------------------
+# 2. Testdaten / Matrizen
+# ----------------------------
+- Matrizen für matmul: Identity, Beispiel A/B Matrizen
+- Vektoren für translate: Vec3 {x, y, z}
+- Vektoren für rot3D: Vec3 {1,0,0}, Vec3 {0,1,0}
+
+# ----------------------------
+# 3. Abnahmekriterien
+# ----------------------------
+- Alle Unit-Tests erfolgreich
+- Keine Exceptions außer gewollt (z. B. ungültige Achse)
+- Testbericht in tests.txt dokumentiert
+
+========================================================
+Hinweis:
+- Diese Datei wird vom Tester gepflegt.
+- Tester dokumentiert Input, Output, erwartetes Ergebnis und Erfolg/Fehler.
+========================================================