From f306c22306032a4aa4a510485dc40f4411bbcd53 Mon Sep 17 00:00:00 2001
From: Justin Lin <justin.sdk@gmail.com>
Date: Thu, 5 May 2022 08:27:28 +0800
Subject: [PATCH] add test

---
 test/matrix/test_m_determinant.scad | 31 +++++++++++++++++++++++++++++
 test/test_all.scad                  |  1 +
 2 files changed, 32 insertions(+)
 create mode 100644 test/matrix/test_m_determinant.scad

diff --git a/test/matrix/test_m_determinant.scad b/test/matrix/test_m_determinant.scad
new file mode 100644
index 00000000..8995478a
--- /dev/null
+++ b/test/matrix/test_m_determinant.scad
@@ -0,0 +1,31 @@
+use <matrix/m_determinant.scad>;
+
+module test_m_scaling() {
+    echo("==== test_m_determinant ====");
+
+    assert(
+        m_determinant([
+            [3, 8],
+            [4, 6]
+        ]) == -14
+    );
+
+    assert(
+        m_determinant([
+            [6,  1, 1],
+            [4, -2, 5],
+            [2,  8, 7]
+        ]) == -306
+    );
+
+    assert(
+        m_determinant([
+            [0,  4, 0, -3],
+            [1,  1, 5,  2],
+            [1, -2, 0,  6],
+            [3,  0, 0,  1]
+        ]) == -250
+    );
+}
+
+test_m_determinant();
\ No newline at end of file
diff --git a/test/test_all.scad b/test/test_all.scad
index ff8983bc..c6c5b5bd 100644
--- a/test/test_all.scad
+++ b/test/test_all.scad
@@ -99,6 +99,7 @@ include <voxel/test_vx_contour.scad>;
 // Matrix
 include <matrix/test_m_scaling.scad>;
 include <matrix/test_m_translation.scad>;
+include <matrix/test_m_determinant.scad>;
 
 // Voronoi
 include <voronoi/test_vrn2_cells_space.scad>;