diff --git a/matrixmania/ requirements.txt b/ requirements.txt
similarity index 100%
rename from matrixmania/ requirements.txt
rename to  requirements.txt
diff --git a/tests/test_matmul.py b/tests/test_matmul.py
new file mode 100644
index 0000000..a56903d
--- /dev/null
+++ b/tests/test_matmul.py
@@ -0,0 +1,15 @@
+from matrixmania import matmul
+
+def test_matmul():
+    matrix_a = [[3, 4, -1, 4],
+                [-2, 2, 5, 1]
+                ]
+    matrix_b = [[1, 3, -2],
+                [2, 5, 1],
+                [-1, 4, -4],
+                [2, 3, 6]
+                ]
+    matrix_c = matmul(matrix_a, matrix_b)
+    print(f"Matrix A: {matrix_a} mal Matrix B: {matrix_b} = Matrix C: {matrix_c}")
+
+
diff --git a/tests/test_rot.py b/tests/test_rot.py
new file mode 100644
index 0000000..5c9b55d
--- /dev/null
+++ b/tests/test_rot.py
@@ -0,0 +1,8 @@
+from matrixmania import rot_2D
+
+def test_rot_2D():
+    angle = 90
+    result = rot_2D(angle)
+    print(f"Angle:{angle}   Rot-Matrix:{result}")
+
+