Refactoring in tests infrastructure

 * all tests are now in /test/ subdirectory
 * unit tests concatenated to one executable (TODO: ui, common)
 * preparation for test environments (OpenGL and others)
 * removed old TestCBot

4 files changed, 826 insertions, 0 deletions

diff --git a/test/unit/math/gendata.m b/test/unit/math/gendata.m
new file mode 100644
index 0000000..5c13491
--- /dev/null
+++ b/test/unit/math/gendata.m
@@ -0,0 +1,86 @@
+% Script in Octave for generating test data
+
+1;
+
+% Returns the minor matrix
+function m = minor(A, r, c)
+
+  m = A;
+  m(r,:) = [];
+  m(:,c) = [];
+
+end;
+
+% Returns the cofactor matrix
+function m = cofactors(A)
+
+  m = zeros(rows(A), columns(A));
+
+  for r = [1 : rows(A)]
+    for c = [1 : columns(A)]
+      m(r, c) = det(minor(A, r, c));
+      if (mod(r + c, 2) == 1)
+        m(r, c) = -m(r, c);
+      end;
+    end;
+  end;
+
+end;
+
+% Prints the matrix as C++ code
+function printout(A, name)
+
+  printf('const float %s[16] = \n', name);
+  printf('{\n');
+
+  for c = [1 : columns(A)]
+    for r = [1 : rows(A)]
+      printf('  %f', A(r,c));
+      if (! ( (r == 4) && (c == 4) ) )
+        printf(',');
+      end;
+      printf('\n');
+    end;
+  end;
+
+  printf('};\n');
+
+end;
+
+printf('// Cofactors\n');
+A = randn(4,4);
+printout(A, 'COF_MAT');
+printf('\n');
+printout(cofactors(A), 'COF_RESULT');
+printf('\n');
+
+printf('\n');
+
+printf('// Det\n');
+A = randn(4,4);
+printout(A, 'DET_MAT');
+printf('\n');
+printf('const float DET_RESULT = %f;', det(A));
+printf('\n');
+
+printf('\n');
+
+printf('// Invert\n');
+A = randn(4,4);
+printout(A, 'INV_MAT');
+printf('\n');
+printout(inv(A), 'COF_RESULT');
+printf('\n');
+
+printf('\n');
+
+printf('// Multiplication\n');
+A = randn(4,4);
+printout(A, 'MUL_A');
+printf('\n');
+B = randn(4,4);
+printout(B, 'MUL_B');
+printf('\n');
+C = A * B;
+printout(C, 'MUL_RESULT');
+printf('\n');
diff --git a/test/unit/math/geometry_test.cpp b/test/unit/math/geometry_test.cpp
new file mode 100644
index 0000000..f50df4e
--- /dev/null
+++ b/test/unit/math/geometry_test.cpp
@@ -0,0 +1,352 @@
+// * This file is part of the COLOBOT source code
+// * Copyright (C) 2012, Polish Portal of Colobot (PPC)
+// *
+// * This program is free software: you can redistribute it and/or modify
+// * it under the terms of the GNU General Public License as published by
+// * the Free Software Foundation, either version 3 of the License, or
+// * (at your option) any later version.
+// *
+// * This program is distributed in the hope that it will be useful,
+// * but WITHOUT ANY WARRANTY; without even the implied warranty of
+// * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// * GNU General Public License for more details.
+// *
+// * You should have received a copy of the GNU General Public License
+// * along with this program. If not, see  http://www.gnu.org/licenses/.
+
+// math/test/geometry_test.cpp
+
+/* Unit tests for functions in geometry.h */
+
+#include "math/func.h"
+#include "math/geometry.h"
+
+#include "gtest/gtest.h"
+
+
+const float TEST_TOLERANCE = 1e-5;
+
+
+// Test for rewritten function RotateAngle()
+TEST(GeometryTest, RotateAngleTest)
+{
+    EXPECT_TRUE(Math::IsEqual(Math::RotateAngle(0.0f, 0.0f), 0.0f, TEST_TOLERANCE));
+
+    EXPECT_TRUE(Math::IsEqual(Math::RotateAngle(1.0f, 0.0f), 0.0f, TEST_TOLERANCE));
+
+    EXPECT_TRUE(Math::IsEqual(Math::RotateAngle(1.0f, 1.0f), 0.25f * Math::PI, TEST_TOLERANCE));
+
+    EXPECT_TRUE(Math::IsEqual(Math::RotateAngle(0.0f, 2.0f), 0.5f * Math::PI, TEST_TOLERANCE));
+
+    EXPECT_TRUE(Math::IsEqual(Math::RotateAngle(-0.5f, 0.5f), 0.75f * Math::PI, TEST_TOLERANCE));
+
+    EXPECT_TRUE(Math::IsEqual(Math::RotateAngle(-1.0f, 0.0f), Math::PI, TEST_TOLERANCE));
+
+    EXPECT_TRUE(Math::IsEqual(Math::RotateAngle(-1.0f, -1.0f), 1.25f * Math::PI, TEST_TOLERANCE));
+
+    EXPECT_TRUE(Math::IsEqual(Math::RotateAngle(0.0f, -2.0f), 1.5f * Math::PI, TEST_TOLERANCE));
+
+    EXPECT_TRUE(Math::IsEqual(Math::RotateAngle(1.0f, -1.0f), 1.75f * Math::PI, TEST_TOLERANCE));
+}
+
+// Tests for other altered, complex or uncertain functions
+
+/*
+
+  TODO: write meaningful tests with proper test values
+
+int TestAngle()
+{
+    const Math::Vector u(-0.0786076246943884, 0.2231249091714256, -1.1601361718477805);
+    const Math::Vector v(-1.231228742001907, -1.720549809950561, -0.690468438834111);
+
+    float mathResult = Math::Angle(u, v);
+    float oldMathResult = Angle(VEC_TO_D3DVEC(u), VEC_TO_D3DVEC(v));
+
+    if (! Math::IsEqual(mathResult, oldMathResult, TEST_TOLERANCE) )
+        return __LINE__;
+
+    return 0;
+}
+
+int TestRotateView()
+{
+    const Math::Vector center(0.617909142705555, 0.896939729454538, -0.615041943652284);
+    const float angleH = 44.5;
+    const float angleV = 12.3;
+    const float dist = 34.76;
+
+    Math::Vector mathResult = Math::RotateView(center, angleH, angleV, dist);
+    Math::Vector oldMathResult = D3DVEC_TO_VEC(RotateView(VEC_TO_D3DVEC(center), angleH, angleV, dist));
+
+    if (! Math::VectorsEqual(mathResult, oldMathResult, TEST_TOLERANCE))
+        return __LINE__;
+
+    return 0;
+}
+
+int TestLookatPoint()
+{
+    const Math::Vector eye(-2.451183170579471,  0.241270270546559, -0.490677411454893);
+    const float angleH = 48.4;
+    const float angleV = 32.4;
+    const float length = 74.44;
+
+    Math::Vector mathResult = Math::LookatPoint(eye, angleH, angleV, length);
+    Math::Vector oldMathResult = D3DVEC_TO_VEC(LookatPoint(VEC_TO_D3DVEC(eye), angleH, angleV, length));
+
+    if (! Math::VectorsEqual(mathResult, oldMathResult, TEST_TOLERANCE))
+        return __LINE__;
+
+    return 0;
+}
+
+int TestProjection()
+{
+    const Math::Vector a(0.852064846846319, -0.794279497087496, -0.655779805476688);
+    const Math::Vector b(-0.245838834102304, -0.841115596038861, 0.470457161487799);
+    const Math::Vector p(2.289326061164255, -0.505511362271196,  0.660204551169491);
+
+    Math::Vector mathResult = Math::Projection(a, b, p);
+    Math::Vector oldMathResult = D3DVEC_TO_VEC(Projection(VEC_TO_D3DVEC(a), VEC_TO_D3DVEC(b), VEC_TO_D3DVEC(p)));
+
+    if (! Math::VectorsEqual(mathResult, oldMathResult, TEST_TOLERANCE))
+        return __LINE__;
+
+    return 0;
+}
+
+int TestLoadViewMatrix()
+{
+    const Math::Vector from(2.5646013154868874, -0.6058794133917031, -0.0441195127419744);
+    const Math::Vector at(0.728044925765569, -0.206343977871841, 2.543158236935463);
+    const Math::Vector worldUp(-1.893738133660711, -1.009584441407070, 0.521745988225582);
+
+    Math::Matrix mathResult;
+    Math::LoadViewMatrix(mathResult, from, at, worldUp);
+
+    Math::Matrix oldMathResult;
+    {
+        D3DMATRIX mat;
+        D3DVECTOR fromD3D = VEC_TO_D3DVEC(from);
+        D3DVECTOR atD3D = VEC_TO_D3DVEC(at);
+        D3DVECTOR worldUpD3D = VEC_TO_D3DVEC(worldUp);
+        D3DUtil_SetViewMatrix(mat, fromD3D, atD3D, worldUpD3D);
+        oldMathResult = D3DMAT_TO_MAT(mat);
+    }
+
+    if (! Math::MatricesEqual(mathResult, oldMathResult, TEST_TOLERANCE))
+        return __LINE__;
+
+    return 0;
+}
+
+int TestLoadProjectionMatrix()
+{
+    const float fov = 76.3f;
+    const float aspect = 0.891f;
+    const float nearPlane = 12.3f;
+    const float farPlane = 1238.9f;
+
+    Math::Matrix mathResult;
+    Math::LoadProjectionMatrix(mathResult, fov, aspect, nearPlane, farPlane);
+
+    Math::Matrix oldMathResult;
+    {
+        D3DMATRIX mat;
+        D3DUtil_SetProjectionMatrix(mat, fov, aspect, nearPlane, farPlane);
+        oldMathResult = D3DMAT_TO_MAT(mat);
+    }
+
+    if (! Math::MatricesEqual(mathResult, oldMathResult, TEST_TOLERANCE))
+        return __LINE__;
+
+    return 0;
+}
+
+int TestLoadTranslationMatrix()
+{
+    const Math::Vector translation(-0.3631590720995237, 1.6976327614875211, 0.0148815191502145);
+
+    Math::Matrix mathResult;
+    Math::LoadTranslationMatrix(mathResult, translation);
+
+    Math::Matrix oldMathResult;
+    {
+        D3DMATRIX mat;
+        D3DUtil_SetTranslateMatrix(mat, translation.x, translation.y, translation.z);
+        oldMathResult = D3DMAT_TO_MAT(mat);
+    }
+
+    if (! Math::MatricesEqual(mathResult, oldMathResult, TEST_TOLERANCE))
+        return __LINE__;
+
+    return 0;
+}
+
+int TestLoadScaleMatrix()
+{
+    const Math::Vector scale(0.612236460285503, -0.635566935025364, -0.254321375332065);
+
+    Math::Matrix mathResult;
+    Math::LoadScaleMatrix(mathResult, scale);
+
+    Math::Matrix oldMathResult;
+    {
+        D3DMATRIX mat;
+        D3DUtil_SetScaleMatrix(mat, scale.x, scale.y, scale.z);
+        oldMathResult = D3DMAT_TO_MAT(mat);
+    }
+
+    if (! Math::MatricesEqual(mathResult, oldMathResult, TEST_TOLERANCE))
+        return __LINE__;
+
+    return 0;
+}
+
+int TestLoadRotationXMatrix()
+{
+    const float angle = 0.513790685774275;
+
+    Math::Matrix mathResult;
+    Math::LoadRotationXMatrix(mathResult, angle);
+
+    Math::Matrix oldMathResult;
+    {
+        D3DMATRIX mat;
+        D3DUtil_SetRotateXMatrix(mat, angle);
+        oldMathResult = D3DMAT_TO_MAT(mat);
+    }
+
+    if (! Math::MatricesEqual(mathResult, oldMathResult, TEST_TOLERANCE))
+        return __LINE__;
+
+    return 0;
+}
+
+int TestLoadRotationYMatrix()
+{
+    const float angle = -0.569166650127303;
+
+    Math::Matrix mathResult;
+    Math::LoadRotationYMatrix(mathResult, angle);
+
+    Math::Matrix oldMathResult;
+    {
+        D3DMATRIX mat;
+        D3DUtil_SetRotateYMatrix(mat, angle);
+        oldMathResult = D3DMAT_TO_MAT(mat);
+    }
+
+    if (! Math::MatricesEqual(mathResult, oldMathResult, TEST_TOLERANCE))
+        return __LINE__;
+
+    return 0;
+}
+
+int TestLoadRotationZMatrix()
+{
+    const float angle = 0.380448034347452;
+
+    Math::Matrix mathResult;
+    Math::LoadRotationZMatrix(mathResult, angle);
+
+    Math::Matrix oldMathResult;
+    {
+        D3DMATRIX mat;
+        D3DUtil_SetRotateZMatrix(mat, angle);
+        oldMathResult = D3DMAT_TO_MAT(mat);
+    }
+
+    if (! Math::MatricesEqual(mathResult, oldMathResult, TEST_TOLERANCE))
+        return __LINE__;
+
+    return 0;
+}
+
+int TestLoadRotationMatrix()
+{
+    const float angle = -0.987747190637790;
+    const Math::Vector dir(-0.113024727688331, -0.781265998072571, 1.838972397076884);
+
+    Math::Matrix mathResult;
+    Math::LoadRotationMatrix(mathResult, dir, angle);
+
+    Math::Matrix oldMathResult;
+    {
+        D3DMATRIX mat;
+        D3DVECTOR dirD3D = VEC_TO_D3DVEC(dir);
+        D3DUtil_SetRotationMatrix(mat, dirD3D, angle);
+        oldMathResult = D3DMAT_TO_MAT(mat);
+    }
+
+    if (! Math::MatricesEqual(mathResult, oldMathResult, TEST_TOLERANCE))
+        return __LINE__;
+
+    return 0;
+}
+
+int TestLoadRotationXZYMatrix()
+{
+    const Math::Vector angles(-0.841366567984597, -0.100543315396357, 1.610647811559988);
+
+    Math::Matrix mathResult;
+    Math::LoadRotationXZYMatrix(mathResult, angles);
+
+    Math::Matrix oldMathResult;
+    {
+        D3DMATRIX mat;
+        MatRotateXZY(mat, VEC_TO_D3DVEC(angles));
+        oldMathResult = D3DMAT_TO_MAT(mat);
+    }
+
+    if (! Math::MatricesEqual(mathResult, oldMathResult, TEST_TOLERANCE))
+        return __LINE__;
+
+    return 0;
+}
+
+int TestLoadRotationZXYMatrix()
+{
+    const Math::Vector angles(0.275558495480206, -0.224328265970090, 0.943077216574253);
+
+    Math::Matrix mathResult;
+    Math::LoadRotationZXYMatrix(mathResult, angles);
+
+    Math::Matrix oldMathResult;
+    {
+        D3DMATRIX mat;
+        MatRotateZXY(mat, VEC_TO_D3DVEC(angles));
+        oldMathResult = D3DMAT_TO_MAT(mat);
+    }
+
+    if (! Math::MatricesEqual(mathResult, oldMathResult, TEST_TOLERANCE))
+        return __LINE__;
+
+    return 0;
+}
+
+int TestTransform()
+{
+    Math::Matrix transformMatrix(
+        (float[4][4])
+        {
+            { -0.9282074720977896,  0.6794734970319730, -1.3234304946882685,  0.0925294727863890 },
+            { -0.0395527963683484,  0.2897634352353881,  1.9144398570315440, -1.4062267508968478 },
+            {  0.9133323625282361, -0.6741836434774530, -0.2188812951424338, -1.0089184339952666 },
+            {  0.0f, 0.0f, 0.0f, 1.0f }
+        }
+    );
+    Math::Vector vector(-0.314596433318370, -0.622681232583150, -0.371307535743574);
+
+    Math::Vector mathResult = Math::Transform(transformMatrix, vector);
+    Math::Vector oldMathResult = Transform(transformMatrix, vector);
+
+    if (! Math::VectorsEqual(mathResult, oldMathResult, TEST_TOLERANCE))
+        return __LINE__;
+
+    return 0;
+}
+
+*/
+
diff --git a/test/unit/math/matrix_test.cpp b/test/unit/math/matrix_test.cpp
new file mode 100644
index 0000000..6ae2c6b
--- /dev/null
+++ b/test/unit/math/matrix_test.cpp
@@ -0,0 +1,314 @@
+// * This file is part of the COLOBOT source code
+// * Copyright (C) 2012, Polish Portal of Colobot (PPC)
+// *
+// * This program is free software: you can redistribute it and/or modify
+// * it under the terms of the GNU General Public License as published by
+// * the Free Software Foundation, either version 3 of the License, or
+// * (at your option) any later version.
+// *
+// * This program is distributed in the hope that it will be useful,
+// * but WITHOUT ANY WARRANTY; without even the implied warranty of
+// * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// * GNU General Public License for more details.
+// *
+// * You should have received a copy of the GNU General Public License
+// * along with this program. If not, see  http://www.gnu.org/licenses/.
+
+// math/test/matrix_test.cpp
+
+/*
+  Unit tests for Matrix struct
+
+  Test data was randomly generated and the expected results
+  calculated using GNU Octave.
+ */
+
+#include "math/func.h"
+#include "math/matrix.h"
+
+#include "gtest/gtest.h"
+
+
+const float TEST_TOLERANCE = 1e-6;
+
+
+TEST(MatrixTest, TransposeTest)
+{
+    const Math::Matrix mat(
+        (float[4][4])
+        {
+            { -0.07011674491203920,  1.26145596067429810,  2.09476603598066902,  0.35560176915570696 },
+            { -1.34075615966224704,  1.17988499016709314,  0.00601713429241016, -0.75213676977972566 },
+            {  0.59186722295223981,  0.88089224074765293,  0.70994467464257294,  0.36730385425340212 },
+            { -0.95649396555068111,  0.75912182022565566,  1.34883305778387186, -1.34957997578168754 }
+        }
+    );
+
+    const Math::Matrix expectedTranspose(
+        (float[4][4])
+        {
+            { -0.07011674491203920, -1.34075615966224704,  0.59186722295223981, -0.95649396555068111 },
+            {  1.26145596067429810,  1.17988499016709314,  0.88089224074765293,  0.75912182022565566 },
+            {  2.09476603598066902,  0.00601713429241016,  0.70994467464257294,  1.34883305778387186 },
+            {  0.35560176915570696, -0.75213676977972566,  0.36730385425340212, -1.34957997578168754 }
+        }
+    );
+
+    Math::Matrix transpose = Math::Transpose(mat);
+
+    EXPECT_TRUE(Math::MatricesEqual(transpose, expectedTranspose, TEST_TOLERANCE));
+}
+
+TEST(MatrixTest, CofactorTest)
+{
+    const Math::Matrix mat1(
+        (float[4][4])
+        {
+            {  0.610630320796245,  1.059932357918312, -1.581674311378210,  1.782214448453331 },
+            {  0.191028848211526, -0.813898708757524,  1.516114203870644,  0.395202639476002 },
+            {  0.335142750345279, -0.346586619596529,  0.545382042472336, -0.879268918923072 },
+            {  1.417588151657198,  1.450841789070141,  0.219080104196171,  0.378724047481655 }
+        }
+    );
+
+    const Math::Matrix expectedCofactors1(
+        (float[4][4])
+        {
+            { -2.402679369186782,  2.282452509293019,  1.722732204057644, -0.746939701104385 },
+            { -0.687677756877654,  1.168949180331164, -0.985354966837796, -1.334071111592705 },
+            { -5.115621958424845,  4.229724770159009,  2.529000630782808,  1.481632618355891 },
+            {  0.147480897398694, -2.140677680337111, -1.207189492265546,  0.151236920408051 }
+        }
+    );
+
+    for (int r = 0; r < 4; ++r)
+    {
+        for (int c = 0; c < 4; ++c)
+        {
+            float ret = mat1.Cofactor(r, c);
+            float exp = expectedCofactors1.m[4*c+r];
+            EXPECT_TRUE(Math::IsEqual(ret, exp, TEST_TOLERANCE));
+        }
+    }
+
+    const Math::Matrix mat2(
+        (float[4][4])
+        {
+            {  0.9845099464982393, -0.9091233416532389, -0.6272243714245945,  0.4645001858944354 },
+            { -0.1333308471483736,  0.9128181433725897, -1.0937461393836190,  0.3180936795928376 },
+            { -0.0654324396846289,  0.1014641705415945,  1.5107709042683430, -0.0240560430414690 },
+            {  0.0179638644093347, -1.0695585982782767, -0.1741250853101032,  1.0803106709464336 }
+        }
+    );
+
+    const Math::Matrix expectedCofactors2(
+        (float[4][4])
+        {
+            {  2.0861102207614466,  0.2989010779528912,  0.0746276150537432,  0.2732659822656097 },
+            {  0.6850002886584565,  1.5513169659641379, -0.0503743176545917,  1.5163672441575642 },
+            {  1.2385556680997216,  1.1827709562505695,  1.2282813085138962,  1.3483789679871401 },
+            { -1.0710790241539783, -0.5589604503588883,  0.0100959837872308,  1.1897872684455839 }
+        }
+    );
+
+
+    for (int r = 0; r < 4; ++r)
+    {
+        for (int c = 0; c < 4; ++c)
+        {
+            float ret = mat2.Cofactor(r, c);
+            float exp = expectedCofactors2.m[4*c+r];
+            EXPECT_TRUE(Math::IsEqual(ret, exp, TEST_TOLERANCE));
+        }
+    }
+}
+
+TEST(MatrixTest, DetTest)
+{
+    const Math::Matrix mat1(
+        (float[4][4])
+        {
+            { -0.95880162984708284,  0.24004047608997131, -0.78172309932665407, -0.11604124457222834 },
+            { -0.36230592086261376, -0.75778166876017261,  0.33041059404631740, -1.06001391941094836 },
+            {  0.00260215210936187,  1.27485610196385113, -0.26149859846418033, -0.59669701186364876 },
+            {  0.36899429848485432,  3.01720896813933104,  2.10311476609438719, -1.68627076626448269 }
+        }
+    );
+
+    const float expectedDet1 = 4.07415413729671;
+
+    float ret1 = mat1.Det();
+    EXPECT_TRUE(Math::IsEqual(ret1, expectedDet1, TEST_TOLERANCE));
+
+    const Math::Matrix mat2(
+        (float[4][4])
+        {
+            { -1.0860073221346871,  0.9150354098189495, -0.2723201933559999,  0.2922832160271507 },
+            { -1.0248331304801788, -2.5081237461125205, -1.0277123574586633, -0.2254690663329798 },
+            { -1.4227635282899367, -0.0403846809122684,  0.9216148477171653,  1.2517067488015878 },
+            { -0.1160254467152022,  0.8270675274393656,  1.0327218739781614, -0.3674886870220400 }
+        }
+    );
+
+    const float expectedDet2 = -6.35122307880942;
+
+    float ret2 = mat2.Det();
+    EXPECT_TRUE(Math::IsEqual(ret2, expectedDet2, TEST_TOLERANCE));
+}
+
+TEST(MatrixTest, InverseTest)
+{
+    const Math::Matrix mat1(
+        (float[4][4])
+        {
+            { -2.2829352811514658, -0.9103222363187888,  0.2792976509411680, -0.7984393573193174 },
+            {  2.4823665798689589, -0.0599056759070980,  0.3832364352926366, -1.6404257204372739 },
+            { -0.3841952272526398, -0.8377700696457873, -0.3416328338427138,  1.1746577275723329 },
+            {  0.1746031241954947, -0.4952532117949962,  0.2155084379835037, -1.6586460437329220 }
+        }
+    );
+
+    const Math::Matrix expectedInverse1(
+        (float[4][4])
+        {
+            { -0.119472603171041,  0.331675963276297,  0.187516809009720, -0.137720814290806 },
+            { -0.387591686166085, -0.487284946727583, -0.798527541290274,  0.102991635972060 },
+            {  2.601905603425902,  2.606899016264679, -0.528006148839176, -4.204703326522837 },
+            {  0.441220327151392,  0.519128136207318,  0.189567009205522, -1.194469716136194 }
+        }
+    );
+
+    Math::Matrix inverse1 = mat1.Inverse();
+
+    EXPECT_TRUE(Math::MatricesEqual(inverse1, expectedInverse1, TEST_TOLERANCE));
+
+    const Math::Matrix mat2(
+        (float[4][4])
+        {
+            { -0.05464332404298505, -0.64357755258235749, -0.13017671677619302, -0.56742332785888006 },
+            {  0.29048383600458222, -0.91517047043724875,  0.84517524415561684,  0.51628195547960565 },
+            {  0.00946488004480186, -0.89077382212689293,  0.73565573766341397, -0.15932513521840930 },
+            { -1.01244718912499132, -0.27840911963972276, -0.39189681211309862,  1.18315064340192055 }
+        }
+    );
+
+    const Math::Matrix expectedInverse2(
+        (float[4][4])
+        {
+            {  0.771302711132012,  1.587542278361995, -2.003075114445104, -0.592574156227379 },
+            { -1.208929259769431, -0.786598967848473,  0.607335305808052, -0.154759693303324 },
+            { -1.500037668208218, -0.774300278997914,  1.917800427261255, -0.123268572651291 },
+            { -0.121314770937944,  0.916925149209746, -0.935924950785014,  0.260875394250671 }
+        }
+    );
+
+    Math::Matrix inverse2 = mat2.Inverse();
+
+    EXPECT_TRUE(Math::MatricesEqual(inverse2, expectedInverse2, TEST_TOLERANCE));
+}
+
+TEST(MatrixTest, MultiplyTest)
+{
+    const Math::Matrix mat1A(
+        (float[4][4])
+        {
+            {  0.6561727049162027, -1.4180263627131411, -0.8271026046117423,  2.3919331748512578 },
+            { -0.6035665535146352,  0.0150827348790615, -0.7090794192822540,  0.9057604704594814 },
+            { -0.9871045001223655, -0.4980646811455065,  0.3806177002298990,  0.1520583649240934 },
+            { -0.2721911170792712,  0.7627928194552067, -0.1504091336784158,  0.9747545351840121 }
+        }
+    );
+
+    const Math::Matrix mat1B(
+        (float[4][4])
+        {
+            { -0.2643735892448818, -0.7542994492819621,  0.6082322350568750,  0.0581733424861419 },
+            {  1.0293246070431237,  0.1979285388251341, -0.2932031385332818,  0.8838407179018929 },
+            {  0.3448687251553114,  0.5031654871245456,  0.7554693012922442, -0.4845315903845708 },
+            { -1.8662838497278593, -0.7843850624747805,  0.1389026096476257, -1.3686415408300689 }
+        }
+    );
+
+    const Math::Matrix expectedMultiply1(
+        (float[4][4])
+        {
+            { -6.382352236417988, -3.067984733682130,  0.522270304251466, -4.088079444498280 },
+            { -1.759853366848825, -0.608994052024491, -0.781406179437379, -0.917870775786188 },
+            { -0.404226802169062,  0.718232546720114, -0.145688356880835, -0.890167707987175 },
+            { -1.013918490922430, -0.483971504099758, -0.367442194643757, -0.602858486133615 }
+        }
+    );
+
+    Math::Matrix multiply1 = Math::MultiplyMatrices(mat1A, mat1B);
+    EXPECT_TRUE(Math::MatricesEqual(multiply1, expectedMultiply1, TEST_TOLERANCE));
+
+    const Math::Matrix mat2A(
+        (float[4][4])
+        {
+            {  0.8697203025776754,  2.1259475710644935,  1.7856691009707812, -2.1563963348328126 },
+            {  1.5888074489288735, -0.0794849733953615,  0.7307782768677457,  0.7943129159612630 },
+            {  0.2859761537233830, -0.6231231890384962, -0.0496743172880377, -0.8137857518646087 },
+            {  1.2670547229512983, -0.5305171374831831, -0.4987412674062375, -1.1257327113869595 }
+        }
+    );
+
+    const Math::Matrix mat2B(
+        (float[4][4])
+        {
+            {  1.1321105701165317,  0.1759563504574463, -2.0675778912000418,  1.4840339814245538 },
+            { -1.5117280888829916, -0.0933013188828093, -0.2079262944351640,  0.9575727579539316 },
+            {  0.3615378398970173,  1.2465163589027248,  1.1326150997082589,  0.9921208694352303 },
+            { -0.7357104529373861, -0.4774022005969588, -0.2118739096676499,  1.1427567093270703 }
+        }
+    );
+
+    const Math::Matrix expectedMultiply2(
+        (float[4][4])
+        {
+            {  0.00283516267056338,  3.21001319965989307,  0.23910503934370686,  2.63380716363006107 },
+            {  1.59868505822469742,  0.81869715594617765, -2.60905981088293570,  3.91445839239110294 },
+            {  1.84650099286297942,  0.43504079532852930, -0.34555619012424243, -1.15152951542451487 },
+            {  2.88434318563174585,  0.18818239851585700, -2.83579436909308980, -0.40890672198610400 }
+        }
+    );
+
+    Math::Matrix multiply2 = Math::MultiplyMatrices(mat2A, mat2B);
+    EXPECT_TRUE(Math::MatricesEqual(multiply2, expectedMultiply2, TEST_TOLERANCE));
+}
+
+TEST(MatrixTest, MultiplyVectorTest)
+{
+    const Math::Matrix mat1(
+        (float[4][4])
+        {
+            {  0.188562846910008, -0.015148651460679,  0.394512304108827,  0.906910631257135 },
+            { -0.297506779519667,  0.940119328178913,  0.970957796752517,  0.310559318965526 },
+            { -0.819770525290873, -2.316574438778879,  0.155756069319732, -0.855661405742964 },
+            {  0.000000000000000,  0.000000000000000,  0.000000000000000,  1.000000000000000 }
+        }
+    );
+
+    const Math::Vector vec1(-0.824708565156661, -1.598287748103842, -0.422498044734181);
+
+    const Math::Vector expectedMultiply1(0.608932463260470, -1.356893266403749, 3.457156276255142);
+
+    Math::Vector multiply1 = Math::MatrixVectorMultiply(mat1, vec1, false);
+    EXPECT_TRUE(Math::VectorsEqual(multiply1, expectedMultiply1, TEST_TOLERANCE));
+
+    const Math::Matrix mat2(
+        (float[4][4])
+        {
+            { -0.63287117038834284,  0.55148060401816856, -0.02042395559467368, -1.50367083897656850 },
+            {  0.69629042156335297,  0.12982747869796774, -1.16250029235919405,  1.19084447253756909 },
+            {  0.44164132914357224, -0.15169304045662041, -0.00880583574621390, -0.55817802940035310 },
+            {  0.95680476533530789, -1.51912346889253125, -0.74209769406615944, -0.20938988867903682 }
+        }
+    );
+
+    const Math::Vector vec2(0.330987381051962, 1.494375516393466, 1.483422335561857);
+
+    const Math::Vector expectedMultiply2(0.2816820577317669, 0.0334468811767428, 0.1996974284970455);
+
+    Math::Vector multiply2 = Math::MatrixVectorMultiply(mat2, vec2, true);
+    EXPECT_TRUE(Math::VectorsEqual(multiply2, expectedMultiply2, TEST_TOLERANCE));
+}
diff --git a/test/unit/math/vector_test.cpp b/test/unit/math/vector_test.cpp
new file mode 100644
index 0000000..199f4c3
--- /dev/null
+++ b/test/unit/math/vector_test.cpp
@@ -0,0 +1,74 @@
+// * This file is part of the COLOBOT source code
+// * Copyright (C) 2012, Polish Portal of Colobot (PPC)
+// *
+// * This program is free software: you can redistribute it and/or modify
+// * it under the terms of the GNU General Public License as published by
+// * the Free Software Foundation, either version 3 of the License, or
+// * (at your option) any later version.
+// *
+// * This program is distributed in the hope that it will be useful,
+// * but WITHOUT ANY WARRANTY; without even the implied warranty of
+// * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// * GNU General Public License for more details.
+// *
+// * You should have received a copy of the GNU General Public License
+// * along with this program. If not, see  http://www.gnu.org/licenses/.
+
+// math/test/vector_test.cpp
+
+/*
+  Unit tests for Vector struct
+
+  Test data was randomly generated and the expected results
+  calculated using GNU Octave.
+ */
+
+#include "math/func.h"
+#include "math/vector.h"
+
+#include "gtest/gtest.h"
+
+
+const float TEST_TOLERANCE = 1e-6;
+
+
+TEST(VectorTest, LengthTest)
+{
+    Math::Vector vec(-1.288447945923275, 0.681452565308134, -0.633761098985957);
+    const float expectedLength = 1.58938001708428;
+
+    EXPECT_TRUE(Math::IsEqual(vec.Length(), expectedLength, TEST_TOLERANCE));
+}
+
+TEST(VectorTest, NormalizeTest)
+{
+    Math::Vector vec(1.848877241804398, -0.157262961268577, -1.963031403332377);
+    const Math::Vector expectedNormalized(0.6844609421393856, -0.0582193085618106, -0.7267212194481797);
+
+    vec.Normalize();
+
+    EXPECT_TRUE(Math::VectorsEqual(vec, expectedNormalized, TEST_TOLERANCE));
+}
+
+TEST(VectorTest, DotTest)
+{
+    Math::Vector vecA(0.8202190530968309, 0.0130926060162780, 0.2411914183883510);
+    Math::Vector vecB(-0.0524083951404069, 1.5564932716738220, -0.8971342631500536);
+
+    float expectedDot = -0.238988896477326;
+
+    EXPECT_TRUE(Math::IsEqual(Math::DotProduct(vecA, vecB), expectedDot, TEST_TOLERANCE));
+}
+
+TEST(VectorTest, CrossTest)
+{
+    Math::Vector vecA(1.37380499798567, 1.18054518384682, 1.95166361293121);
+    Math::Vector vecB(0.891657855926886, 0.447591335394532, -0.901604070087823);
+
+    Math::Vector expectedCross(-1.937932065431669, 2.978844370287636, -0.437739173833581);
+    Math::Vector expectedReverseCross = -expectedCross;
+
+    EXPECT_TRUE(Math::VectorsEqual(vecA.CrossMultiply(vecB), expectedCross, TEST_TOLERANCE));
+
+    EXPECT_TRUE(Math::VectorsEqual(vecB.CrossMultiply(vecA), expectedReverseCross, TEST_TOLERANCE));
+}