[Libreoffice-commits] .: basegfx/test

[Thorsten Behrens]

 basegfx/test/basegfx2d.cxx |   38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

New commits:
commit f89d911853dacba568bb28dd8411ae3132695f72
Author: Thorsten Behrens <tbehrens at novell.com>
Date:   Tue Mar 15 01:10:15 2011 +0100

    Lock rotation matrix orthogonality via unit test
    
    There were cases reported when multiples of pi/2 did not yield a
    properly-orthogonal rotation matrix. locked via unit test.

diff --git a/basegfx/test/basegfx2d.cxx b/basegfx/test/basegfx2d.cxx
index 5a58ed8..8ac7acf 100644
--- a/basegfx/test/basegfx2d.cxx
+++ b/basegfx/test/basegfx2d.cxx
@@ -709,6 +709,43 @@ public:
         CPPUNIT_ASSERT_MESSAGE("scale", maScale == mat);
     }
 
+    void rotate()
+    {
+        B2DHomMatrix mat;
+        mat.rotate(90*F_PI180);
+        CPPUNIT_ASSERT_MESSAGE("rotate pi/2 yields exact matrix",
+                               mat.get(0,0) == 0.0 &&
+                               mat.get(0,1) == -1.0 &&
+                               mat.get(0,2) == 0.0 &&
+                               mat.get(1,0) == 1.0 &&
+                               mat.get(1,1) == 0.0 &&
+                               mat.get(1,2) == 0.0);
+        mat.rotate(90*F_PI180);
+        CPPUNIT_ASSERT_MESSAGE("rotate pi yields exact matrix",
+                               mat.get(0,0) == -1.0 &&
+                               mat.get(0,1) == 0.0 &&
+                               mat.get(0,2) == 0.0 &&
+                               mat.get(1,0) == 0.0 &&
+                               mat.get(1,1) == -1.0 &&
+                               mat.get(1,2) == 0.0);
+        mat.rotate(90*F_PI180);
+        CPPUNIT_ASSERT_MESSAGE("rotate 3/2 pi yields exact matrix",
+                               mat.get(0,0) == 0.0 &&
+                               mat.get(0,1) == 1.0 &&
+                               mat.get(0,2) == 0.0 &&
+                               mat.get(1,0) == -1.0 &&
+                               mat.get(1,1) == 0.0 &&
+                               mat.get(1,2) == 0.0);
+        mat.rotate(90*F_PI180);
+        CPPUNIT_ASSERT_MESSAGE("rotate 2 pi yields exact matrix",
+                               mat.get(0,0) == 1.0 &&
+                               mat.get(0,1) == 0.0 &&
+                               mat.get(0,2) == 0.0 &&
+                               mat.get(1,0) == 0.0 &&
+                               mat.get(1,1) == 1.0 &&
+                               mat.get(1,2) == 0.0);
+    }
+
     void translate()
     {
         B2DHomMatrix mat;
@@ -895,6 +932,7 @@ public:
     CPPUNIT_TEST(identity);
     CPPUNIT_TEST(scale);
     CPPUNIT_TEST(translate);
+    CPPUNIT_TEST(rotate);
     CPPUNIT_TEST(shear);
     CPPUNIT_TEST(multiply);
     CPPUNIT_TEST(decompose);