From 679a660e21f3827b99095cce85cd6711d65e51e5 Mon Sep 17 00:00:00 2001
From: Alex Foster <123afoster@gmail.com>
Date: Mon, 4 Nov 2024 23:43:50 -0800
Subject: [PATCH] test matrix3::multranspose

---
 test/testmatrix.cpp | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/test/testmatrix.cpp b/test/testmatrix.cpp
index bb4f4c18..aef92aa5 100644
--- a/test/testmatrix.cpp
+++ b/test/testmatrix.cpp
@@ -152,6 +152,33 @@ void test_matrix3_mul()
     }
 }
 
+void test_matrix3_multranspose()
+{
+    std::printf("testing matrix3 multranspose\n");
+    //multranspose(const matrix3&);
+    {
+        matrix3 a,b;
+        a.identity();
+        b.identity();
+        a.multranspose(b);
+        assert(a.a == vec(1,0,0));
+        assert(a.b == vec(0,1,0));
+        assert(a.c == vec(0,0,1));
+    }
+    {
+        matrix3 a;
+        vec e1(1,2,3),
+            e2(4,5,6),
+            e3(7,8,9);
+        matrix3 b(e1,e2,e3);
+        a.identity();
+        a.multranspose(b);
+        assert(a.a == vec(1,4,7));
+        assert(a.b == vec(2,1,8));
+        assert(a.c == vec(3,6,9));
+    }
+}
+
 void test_matrix3_normalize()
 {
     std::printf("testing matrix3 normalize\n");
@@ -1288,6 +1315,7 @@ testing matrices\n\
 
     test_matrix3_ctor();
     test_matrix3_mul();
+    test_matrix3_multranspose();
     test_matrix3_normalize();
     test_matrix3_scale();
     test_matrix3_setyaw();