forked from bartvdbraak/blender
Tests: added unit test for mat3_vec_to_roll()
function
This was used to investigate T73840. Since the armature math is far from simple, I thought it would be a good idea to start writing some unit tests for it. No functional changes in Blender itself.
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@ -12,6 +12,7 @@ if(WITH_GTESTS)
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remove_strict_flags()
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add_subdirectory(testing)
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add_subdirectory(blenkernel)
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add_subdirectory(blenlib)
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add_subdirectory(blenloader)
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add_subdirectory(guardedalloc)
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89
tests/gtests/blenkernel/BKE_armature_test.cc
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89
tests/gtests/blenkernel/BKE_armature_test.cc
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@ -0,0 +1,89 @@
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/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2020 Blender Foundation
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* All rights reserved.
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*/
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#include "BKE_armature.h"
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#include "BLI_math.h"
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#include "testing/testing.h"
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static const float FLOAT_EPSILON = 1e-7;
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TEST(mat3_vec_to_roll, UnitMatrix)
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{
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float unit_matrix[3][3];
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float roll;
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unit_m3(unit_matrix);
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// Any vector with a unit matrix should return zero roll.
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mat3_vec_to_roll(unit_matrix, unit_matrix[0], &roll);
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EXPECT_FLOAT_EQ(0.0f, roll);
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mat3_vec_to_roll(unit_matrix, unit_matrix[1], &roll);
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EXPECT_FLOAT_EQ(0.0f, roll);
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mat3_vec_to_roll(unit_matrix, unit_matrix[2], &roll);
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EXPECT_FLOAT_EQ(0.0f, roll);
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{
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// Non-unit vector.
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float vector[3] = {1.0f, 1.0f, 1.0f};
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mat3_vec_to_roll(unit_matrix, vector, &roll);
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EXPECT_NEAR(0.0f, roll, FLOAT_EPSILON);
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// Normalized version of the above vector.
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normalize_v3(vector);
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mat3_vec_to_roll(unit_matrix, vector, &roll);
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EXPECT_NEAR(0.0f, roll, FLOAT_EPSILON);
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}
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}
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TEST(mat3_vec_to_roll, Rotationmatrix)
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{
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float rotation_matrix[3][3];
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float roll;
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const float rot_around_x[3] = {1.234f, 0.0f, 0.0f};
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eul_to_mat3(rotation_matrix, rot_around_x);
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{
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const float unit_axis_x[3] = {1.0f, 0.0f, 0.0f};
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mat3_vec_to_roll(rotation_matrix, unit_axis_x, &roll);
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EXPECT_NEAR(1.234f, roll, FLOAT_EPSILON);
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}
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{
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const float unit_axis_y[3] = {0.0f, 1.0f, 0.0f};
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mat3_vec_to_roll(rotation_matrix, unit_axis_y, &roll);
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EXPECT_NEAR(0, roll, FLOAT_EPSILON);
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}
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{
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const float unit_axis_z[3] = {0.0f, 0.0f, 1.0f};
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mat3_vec_to_roll(rotation_matrix, unit_axis_z, &roll);
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EXPECT_NEAR(0, roll, FLOAT_EPSILON);
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}
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{
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const float between_x_and_y[3] = {1.0f, 1.0f, 0.0f};
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mat3_vec_to_roll(rotation_matrix, between_x_and_y, &roll);
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EXPECT_NEAR(0.57158958f, roll, FLOAT_EPSILON);
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}
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}
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37
tests/gtests/blenkernel/CMakeLists.txt
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37
tests/gtests/blenkernel/CMakeLists.txt
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# ***** BEGIN GPL LICENSE BLOCK *****
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# The Original Code is Copyright (C) 2020, Blender Foundation
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# All rights reserved.
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# ***** END GPL LICENSE BLOCK *****
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set(INC
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.
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..
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../../../source/blender/blenkernel
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../../../source/blender/blenlib
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../../../source/blender/makesdna
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../../../intern/guardedalloc
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../../../intern/atomic
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)
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setup_libdirs()
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include_directories(${INC})
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${PLATFORM_LINKFLAGS}")
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set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} ${PLATFORM_LINKFLAGS_DEBUG}")
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BLENDER_TEST(BKE_armature "bf_blenloader;bf_blenkernel;bf_blenlib")
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