Ported maths tests and added a test for #570.

This commit is contained in:
Daniel Buckmaster 2014-07-08 23:12:49 +02:00
parent 1a5664c580
commit 2c2284e699
5 changed files with 186 additions and 183 deletions

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//-----------------------------------------------------------------------------
// Copyright (c) 2014 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------
#ifdef TORQUE_TESTS_ENABLED
#include "testing/unitTesting.h"
#include "math/mBox.h"
TEST(Box3F, GetOverlap)
{
Box3F b1(Point3F(-1, -1, -1), Point3F(1, 1, 1));
EXPECT_EQ(b1.getOverlap(b1), b1)
<< "A box's overlap with itself should be itself.";
Box3F b2(Point3F(0, 0, 0), Point3F(1, 1, 1));
EXPECT_EQ(b1.getOverlap(b2), b2)
<< "Box's overlap should be the intersection of two boxes.";
Box3F b3(Point3F(10, 10, 10), Point3F(11, 11, 11));
EXPECT_TRUE(b1.getOverlap(b3).isEmpty())
<< "Overlap of boxes that do not overlap should be empty.";
}
#endif

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//-----------------------------------------------------------------------------
// Copyright (c) 2014 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------
#ifdef TORQUE_TESTS_ENABLED
#include "testing/unitTesting.h"
#include "math/mPlane.h"
// Static test data. All combinations of position and normal are tested in each
// test case. This allows a large number of tests without introducing non-
// deterministic test behavior.
static const Point3F positions[] = {Point3F(0, 0, 0), Point3F(1, -2, 3), Point3F(1e5, 2e5, -3e6)};
static const U32 numPositions = sizeof(positions) / sizeof(Point3F);
static const Point3F normals[] = {Point3F(1, 0, 0), Point3F(-4, -2, 6), Point3F(1e8, 2e7, 5e-2)};
static const U32 numNormals = sizeof(normals) / sizeof(Point3F);
/// Tests that points in the direction of the normal are in 'Front' of the
/// plane, while points in the reverse direction of the normal are in
/// 'Back' of the plane.
TEST(Plane, WhichSide)
{
for(U32 i = 0; i < numPositions; i++) {
for(U32 j = 0; i < numNormals; j++) {
Point3F position = positions[i];
Point3F normal = normals[j];
PlaneF p(position, normal);
EXPECT_EQ(p.whichSide(position + normal), PlaneF::Front );
EXPECT_EQ(p.whichSide(position - normal), PlaneF::Back );
EXPECT_EQ(p.whichSide(position), PlaneF::On );
}
}
}
/// Tests that the distToPlane method returns the exact length that the test
/// point is offset by in the direction of the normal.
TEST(Plane, DistToPlane)
{
for(U32 i = 0; i < numPositions; i++) {
for(U32 j = 0; i < numNormals; j++) {
Point3F position = positions[i];
Point3F normal = normals[j];
PlaneF p(position, normal);
EXPECT_FLOAT_EQ(p.distToPlane(position + normal), normal.len());
EXPECT_FLOAT_EQ(p.distToPlane(position - normal), -normal.len());
EXPECT_FLOAT_EQ(p.distToPlane(position), 0);
}
}
}
#endif

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//-----------------------------------------------------------------------------
// Copyright (c) 2014 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------
#ifdef TORQUE_TESTS_ENABLED
#include "testing/unitTesting.h"
#include "math/mPolyhedron.h"
FIXTURE(Polyhedron)
{
protected:
Vector<PlaneF> planes;
virtual void SetUp()
{
// Build planes for a unit cube centered at the origin.
// Note that the normals must be facing inwards.
planes.push_back(PlaneF(Point3F(-0.5f, 0.f, 0.f ), Point3F( 1.f, 0.f, 0.f)));
planes.push_back(PlaneF(Point3F( 0.5f, 0.f, 0.f ), Point3F(-1.f, 0.f, 0.f)));
planes.push_back(PlaneF(Point3F( 0.f, -0.5f, 0.f ), Point3F( 0.f, 1.f, 0.f)));
planes.push_back(PlaneF(Point3F( 0.f, 0.5f, 0.f ), Point3F( 0.f, -1.f, 0.f)));
planes.push_back(PlaneF(Point3F( 0.f, 0.f, -0.5f), Point3F( 0.f, 0.f, 1.f)));
planes.push_back(PlaneF(Point3F( 0.f, 0.f, 0.5f), Point3F( 0.f, 0.f, -1.f)));
}
};
TEST_FIX(Polyhedron, BuildFromPlanes)
{
// Turn planes into a polyhedron.
Polyhedron p1;
p1.buildFromPlanes(PlaneSetF(planes.address(), planes.size()));
// Check if we got a cube back.
EXPECT_EQ(p1.getNumPoints(), 8);
EXPECT_EQ(p1.getNumPlanes(), 6);
EXPECT_EQ(p1.getNumEdges(), 12);
// Add extra plane that doesn't contribute a new edge.
Vector<PlaneF> planes2 = planes;
planes2.push_back( PlaneF( Point3F( 0.5f, 0.5f, 0.5f ), Point3F( -1.f, -1.f, -1.f ) ) );
// Turn them into another polyhedron.
Polyhedron p2;
p2.buildFromPlanes(PlaneSetF(planes2.address(), planes2.size()));
// Check if we got a cube back.
EXPECT_EQ(p2.getNumPoints(), 8);
EXPECT_EQ(p2.getNumPlanes(), 6);
EXPECT_EQ(p2.getNumEdges(), 12);
}
#endif

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//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------
#include "unit/test.h"
#include "math/mPlane.h"
#include "math/mRandom.h"
#ifndef TORQUE_SHIPPING
using namespace UnitTesting;
#define TEST( x ) test( ( x ), "FAIL: " #x )
#define XTEST( t, x ) t->test( ( x ), "FAIL: " #x )
CreateUnitTest( TestMathPlane, "Math/Plane" )
{
static F32 randF()
{
return gRandGen.randF( -1.f, 1.f );
}
void test_whichSide()
{
for( U32 i = 0; i < 100; ++ i )
{
Point3F position( randF(), randF(), randF() );
Point3F normal( randF(), randF(), randF() );
PlaneF p1( position, normal );
TEST( p1.whichSide( position + normal ) == PlaneF::Front );
TEST( p1.whichSide( position + ( - normal ) ) == PlaneF::Back );
TEST( p1.whichSide( position ) == PlaneF::On );
}
}
void test_distToPlane()
{
for( U32 i = 0; i < 100; ++ i )
{
Point3F position( randF(), randF(), randF() );
Point3F normal( randF(), randF(), randF() );
PlaneF p1( position, normal );
TEST( mIsEqual( p1.distToPlane( position + normal ), normal.len() ) );
TEST( mIsEqual( p1.distToPlane( position + ( - normal ) ), - normal.len() ) );
TEST( mIsZero( p1.distToPlane( position ) ) );
}
}
void run()
{
test_whichSide();
test_distToPlane();
}
};
#endif // !TORQUE_SHIPPING

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//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------
#include "unit/test.h"
#include "math/mPolyhedron.h"
#ifndef TORQUE_SHIPPING
using namespace UnitTesting;
#define TEST( x ) test( ( x ), "FAIL: " #x )
#define XTEST( t, x ) t->test( ( x ), "FAIL: " #x )
CreateUnitTest( TestMathPolyhedronBuildFromPlanes, "Math/Polyhedron/BuildFromPlanes" )
{
void test_unitCube()
{
Vector< PlaneF > planes;
// Build planes for a unit cube centered at the origin.
// Note that the normals must be facing inwards.
planes.push_back( PlaneF( Point3F( -0.5f, 0.f, 0.f ), Point3F( 1.f, 0.f, 0.f ) ) );
planes.push_back( PlaneF( Point3F( 0.5f, 0.f, 0.f ), Point3F( -1.f, 0.f, 0.f ) ) );
planes.push_back( PlaneF( Point3F( 0.f, -0.5f, 0.f ), Point3F( 0.f, 1.f, 0.f ) ) );
planes.push_back( PlaneF( Point3F( 0.f, 0.5f, 0.f ), Point3F( 0.f, -1.f, 0.f ) ) );
planes.push_back( PlaneF( Point3F( 0.f, 0.f, -0.5f ), Point3F( 0.f, 0.f, 1.f ) ) );
planes.push_back( PlaneF( Point3F( 0.f, 0.f, 0.5f ), Point3F( 0.f, 0.f, -1.f ) ) );
// Turn it into a polyhedron.
Polyhedron polyhedron;
polyhedron.buildFromPlanes(
PlaneSetF( planes.address(), planes.size() )
);
// Check if we got a cube back.
TEST( polyhedron.getNumPoints() == 8 );
TEST( polyhedron.getNumPlanes() == 6 );
TEST( polyhedron.getNumEdges() == 12 );
}
void test_extraPlane()
{
Vector< PlaneF > planes;
// Build planes for a unit cube centered at the origin.
// Note that the normals must be facing inwards.
planes.push_back( PlaneF( Point3F( -0.5f, 0.f, 0.f ), Point3F( 1.f, 0.f, 0.f ) ) );
planes.push_back( PlaneF( Point3F( 0.5f, 0.f, 0.f ), Point3F( -1.f, 0.f, 0.f ) ) );
planes.push_back( PlaneF( Point3F( 0.f, -0.5f, 0.f ), Point3F( 0.f, 1.f, 0.f ) ) );
planes.push_back( PlaneF( Point3F( 0.f, 0.5f, 0.f ), Point3F( 0.f, -1.f, 0.f ) ) );
planes.push_back( PlaneF( Point3F( 0.f, 0.f, -0.5f ), Point3F( 0.f, 0.f, 1.f ) ) );
planes.push_back( PlaneF( Point3F( 0.f, 0.f, 0.5f ), Point3F( 0.f, 0.f, -1.f ) ) );
// Add extra plane that doesn't contribute a new edge.
planes.push_back( PlaneF( Point3F( 0.5f, 0.5f, 0.5f ), Point3F( -1.f, -1.f, -1.f ) ) );
// Turn it into a polyhedron.
Polyhedron polyhedron;
polyhedron.buildFromPlanes(
PlaneSetF( planes.address(), planes.size() )
);
// Check if we got a cube back.
TEST( polyhedron.getNumPoints() == 8 );
TEST( polyhedron.getNumPlanes() == 6 );
TEST( polyhedron.getNumEdges() == 12 );
}
void run()
{
test_unitCube();
//test_extraPlane();
}
};
#endif // !TORQUE_SHIPPING