split unittests_loading into seperate files for different file types

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@813 fdac6126-5c0c-442c-9429-916003d36597

src/Unittests/unittests_read_write_OFF.hh

@@ -0,0 +1,99 @@
+#ifndef INCLUDE_UNITTESTS_READ_WRITE_OFF_HH
+#define INCLUDE_UNITTESTS_READ_WRITE_OFF_HH
+
+#include <gtest/gtest.h>
+#include <Unittests/unittests_common.hh>
+
+
+class OpenMeshReadWriteOFF : public OpenMeshBase {
+
+    protected:
+
+        // This function is called before each test is run
+        virtual void SetUp() {
+
+            // Do some initial stuff with the member data here...
+        }
+
+        // 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
+ * ====================================================================
+ */
+
+/*
+ * Just load a simple mesh file in obj format and count whether
+ * the right number of entities has been loaded.
+ */
+TEST_F(OpenMeshReadWriteOFF, LoadSimpleOFFFile) {
+
+    mesh_.clear();
+
+    bool ok = OpenMesh::IO::read_mesh(mesh_, "cube1.off");
+
+    EXPECT_TRUE(ok);
+
+    EXPECT_EQ(7526u , mesh_.n_vertices()) << "The number of loaded vertices is not correct!";
+    EXPECT_EQ(22572u, mesh_.n_edges()) << "The number of loaded edges is not correct!";
+    EXPECT_EQ(15048u, mesh_.n_faces()) << "The number of loaded faces is not correct!";
+}
+
+
+TEST_F(OpenMeshReadWriteOFF, WriteAndReadVertexColorsToAndFromOFFFile) {
+
+    mesh_.clear();
+
+    mesh_.request_vertex_colors();
+
+    mesh_.add_vertex( Mesh::Point(0,0,1) );
+    mesh_.add_vertex( Mesh::Point(0,1,0) );
+    mesh_.add_vertex( Mesh::Point(0,1,1) );
+    mesh_.add_vertex( Mesh::Point(1,0,1) );
+
+    // using the default color type Vec3uc from DefaultTraits in Traits.hh
+    Mesh::Color testColor(255, 128, 64);
+
+    // setting colors (different from black)
+    for (Mesh::VertexIter vit = mesh_.vertices_begin(), vitend = mesh_.vertices_end(); vit != vitend; ++vit)
+      mesh_.set_color(vit, testColor);
+
+    // check if the colors are correctly setted
+    int count = 0;
+    for (Mesh::VertexIter vit = mesh_.vertices_begin(), vitend = mesh_.vertices_end(); vit != vitend; ++vit) {
+      Mesh::Color color = mesh_.color(vit);
+      if ( color[0] != testColor[0] || color[1] != testColor[1] || color[2] != testColor[2] )
+        ++ count;
+    }
+
+    EXPECT_EQ(0, count) << "Vertices have the wrong color!";
+
+    // write the mesh_
+    OpenMesh::IO::Options opt(OpenMesh::IO::Options::VertexColor);
+    OpenMesh::IO::write_mesh(mesh_, "temp.off", opt);
+    OpenMesh::IO::read_mesh(mesh_, "temp.off", opt);
+
+    // check if vertices still have the same color
+    count = 0;
+    for (Mesh::VertexIter vit = mesh_.vertices_begin(), vitend = mesh_.vertices_end(); vit != vitend; ++vit) {
+      Mesh::Color color = mesh_.color(vit);
+      if ( color[0] != testColor[0] || color[1] != testColor[1] || color[2] != testColor[2] )
+        ++ count;
+    }
+
+    EXPECT_EQ(0, count) << "Vertices should have the same color after writing and reading the OFF file!";
+
+    mesh_.release_vertex_colors();
+}
+
+
+#endif // INCLUDE GUARD