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1af153e52da7a1fb6193318d9353abf2c2465b34
openmesh/src/Unittests/unittests_trimesh_circulator_face_edge.cc
Jan Möbius 1af153e52d refs #1382 
- Fixed the problem that the end iterator could become valid again if it was incremented.
- Decrementing the start iterator will return an invalid iterator now (Maybe we can implement reverse iterators)
- Removed one check from the iteration, which should result in faster execution of is_valid().



git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@1225 fdac6126-5c0c-442c-9429-916003d36597
2015-02-19 09:58:00 +00:00

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#include <gtest/gtest.h>
#include <Unittests/unittests_common.hh>
#include <iostream>
namespace {
class OpenMeshTrimeshCirculatorFaceEdge : public OpenMeshBase {
protected:
// This function is called before each test is run
virtual void SetUp() {
}
// This function is called after all tests are through
virtual void TearDown() {
// Do some final stuff with the member data here...
}
// Member already defined in OpenMeshBase
//Mesh mesh_;
};
/*
* ====================================================================
* Define tests below
* ====================================================================
*/
/*
* Small FaceEdgeIterator Test
*/
TEST_F(OpenMeshTrimeshCirculatorFaceEdge, FaceEdgeIterWithoutHolesIncrement) {
mesh_.clear();
// Add some vertices
Mesh::VertexHandle vhandle[6];
vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
vhandle[3] = mesh_.add_vertex(Mesh::Point(3, 0, 0));
vhandle[4] = mesh_.add_vertex(Mesh::Point(4, 1, 0));
vhandle[5] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
// Add three faces
std::vector<Mesh::VertexHandle> face_vhandles;
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[2]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[3]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[3]);
face_vhandles.push_back(vhandle[4]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[5]);
face_vhandles.push_back(vhandle[3]);
mesh_.add_face(face_vhandles);
/* Test setup:
*
* 0 ------ 2 ------ 4
* \ / \ /
* \ 0 / \ 2 /
* \ / 1 \ /
* 1 ------- 3
* \ /
* \ 3 /
* \ /
* \ /
* 5
*/
Mesh::FaceEdgeIter fe_it = mesh_.fe_begin(mesh_.face_handle(1));
Mesh::FaceEdgeIter fe_end = mesh_.fe_end(mesh_.face_handle(1));
EXPECT_EQ(4, fe_it->idx() ) << "Index wrong in FaceEdgeIter at initialization";
EXPECT_TRUE(fe_it.is_valid()) << "Iterator invalid in FaceEdgeIter at initialization";
++fe_it;
EXPECT_EQ(1, fe_it->idx() ) << "Index wrong in FaceEdgeIter at step 1";
EXPECT_TRUE(fe_it.is_valid()) << "Iterator invalid in FaceEdgeIter at step 1";
++fe_it;
EXPECT_EQ(3, fe_it->idx() ) << "Index wrong in FaceEdgeIter at step 2";
EXPECT_TRUE(fe_it.is_valid()) << "Iterator invalid in FaceEdgeIter at step 2";
++fe_it;
EXPECT_EQ(4, fe_it->idx() ) << "Index wrong in FaceEdgeIter at end";
EXPECT_FALSE(fe_it.is_valid()) << "Iterator invalid in FaceEdgeIter at end";
EXPECT_TRUE( fe_it == fe_end ) << "End iterator for FaceEdgeIter not matching";
Mesh::ConstFaceEdgeIter cfe_it = mesh_.cfe_begin(mesh_.face_handle(1));
Mesh::ConstFaceEdgeIter cfe_end = mesh_.cfe_end(mesh_.face_handle(1));
EXPECT_EQ(4, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at initialization";
EXPECT_TRUE(cfe_it.is_valid()) << "Iterator invalid in ConstFaceEdgeIter at initialization";
++cfe_it;
EXPECT_EQ(1, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at step 1";
EXPECT_TRUE(cfe_it.is_valid()) << "Iterator invalid in ConstFaceEdgeIter at step 1";
++cfe_it;
EXPECT_EQ(3, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at step 2";
EXPECT_TRUE(cfe_it.is_valid()) << "Iterator invalid in ConstFaceEdgeIter at step 2";
++cfe_it;
EXPECT_EQ(4, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at end";
EXPECT_FALSE(cfe_it.is_valid()) << "Iterator invalid in ConstFaceEdgeIter at end";
EXPECT_TRUE( cfe_it == cfe_end ) << "End iterator for ConstFaceEdgeIter not matching";
}
}
/*
* Test if the end iterator stays invalid after one lap
*/
TEST_F(OpenMeshTrimeshCirculatorFaceEdge, FaceEdgeIterCheckInvalidationAtEnds) {
mesh_.clear();
// Add some vertices
Mesh::VertexHandle vhandle[5];
vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
// Add two faces
std::vector<Mesh::VertexHandle> face_vhandles;
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[2]);
Mesh::FaceHandle fh0 = mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[3]);
face_vhandles.push_back(vhandle[4]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[3]);
face_vhandles.push_back(vhandle[1]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[4]);
mesh_.add_face(face_vhandles);
/* Test setup:
0 ==== 2
|\ 0 /|
| \ / |
|2 1 3|
| / \ |
|/ 1 \|
3 ==== 4 */
// Check if the end iterator stays invalid after end
Mesh::FaceEdgeIter endIter = mesh_.fe_end(fh0);
EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid";
++endIter ;
EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid after increment";
// Check if the start iterator decrement is invalid
Mesh::FaceEdgeIter startIter = mesh_.fe_begin(fh0);
EXPECT_TRUE(startIter.is_valid()) << "StartIter is not valid";
--startIter;
EXPECT_FALSE(startIter.is_valid()) << "StartIter decrement is not invalid";
}
/*
* Small FaceEdgeIterator Test
*/
/*
TEST_F(OpenMeshTrimeshCirculatorFaceEdge, FaceEdgeIterWithoutHolesDecrement) {
mesh_.clear();
// Add some vertices
Mesh::VertexHandle vhandle[6];
vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
vhandle[3] = mesh_.add_vertex(Mesh::Point(3, 0, 0));
vhandle[4] = mesh_.add_vertex(Mesh::Point(4, 1, 0));
vhandle[5] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
// Add three faces
std::vector<Mesh::VertexHandle> face_vhandles;
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[2]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[3]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[3]);
face_vhandles.push_back(vhandle[4]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[5]);
face_vhandles.push_back(vhandle[3]);
mesh_.add_face(face_vhandles);
*/
/* Test setup:
*
* 0 ------ 2 ------ 4
* \ / \ /
* \ 0 / \ 2 /
* \ / 1 \ /
* 1 ------- 3
* \ /
* \ 3 /
* \ /
* \ /
* 5
*/
/*
Mesh::FaceEdgeIter fe_it = mesh_.fe_begin(mesh_.face_handle(1));
Mesh::FaceEdgeIter fe_end = mesh_.fe_end(mesh_.face_handle(1));
EXPECT_EQ(4, fe_it->idx() ) << "Index wrong in FaceEdgeIter at initialization";
EXPECT_TRUE(fe_it) << "Iterator invalid in FaceEdgeIter at initialization";
--fe_it;
EXPECT_EQ(1, fe_it->idx() ) << "Index wrong in FaceEdgeIter at step 1";
EXPECT_TRUE(fe_it) << "Iterator invalid in FaceEdgeIter at step 1";
--fe_it;
EXPECT_EQ(3, fe_it->idx() ) << "Index wrong in FaceEdgeIter at step 2";
EXPECT_TRUE(fe_it) << "Iterator invalid in FaceEdgeIter at step 2";
--fe_it;
EXPECT_EQ(4, fe_it->idx() ) << "Index wrong in FaceEdgeIter at end";
EXPECT_FALSE(fe_it) << "Iterator invalid in FaceEdgeIter at end";
EXPECT_TRUE( fe_it == fe_end ) << "End iterator for FaceEdgeIter not matching";
Mesh::ConstFaceEdgeIter cfe_it = mesh_.cfe_begin(mesh_.face_handle(1));
Mesh::ConstFaceEdgeIter cfe_end = mesh_.cfe_end(mesh_.face_handle(1));
EXPECT_EQ(4, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at initialization";
EXPECT_TRUE(cfe_it) << "Iterator invalid in ConstFaceEdgeIter at initialization";
--cfe_it;
EXPECT_EQ(1, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at step 1";
EXPECT_TRUE(cfe_it) << "Iterator invalid in ConstFaceEdgeIter at step 1";
--cfe_it;
EXPECT_EQ(3, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at step 2";
EXPECT_TRUE(cfe_it) << "Iterator invalid in ConstFaceEdgeIter at step 2";
--cfe_it;
EXPECT_EQ(4, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at end";
EXPECT_FALSE(cfe_it) << "Iterator invalid in ConstFaceEdgeIter at end";
EXPECT_TRUE( cfe_it == cfe_end ) << "End iterator for ConstFaceEdgeIter not matching";
}
*/
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