From ef9ffb4fd62fbe63e33bd690e7055ae153af44d0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mael=20Rouxel-Labb=C3=A9?=
 <mael.rouxel.labbe@geometryfactory.com>
Date: Fri, 29 May 2020 12:06:31 +0200
Subject: [PATCH] Add data/tests for GOCAD/OFF/OBJ

---
 .../test/Stream_support/test_GOCAD.cpp        |  3 +
 .../test/Stream_support/test_OBJ.cpp          | 68 +++++++++++++++++
 .../test/Stream_support/test_OFF.cpp          | 73 +++++++++++++++----
 3 files changed, 129 insertions(+), 15 deletions(-)
 create mode 100644 Stream_support/test/Stream_support/test_OBJ.cpp

diff --git a/Stream_support/test/Stream_support/test_GOCAD.cpp b/Stream_support/test/Stream_support/test_GOCAD.cpp
index 59d80c20f3a..5d5838651fc 100644
--- a/Stream_support/test/Stream_support/test_GOCAD.cpp
+++ b/Stream_support/test/Stream_support/test_GOCAD.cpp
@@ -22,6 +22,9 @@ int main(int argc, char** argv)
   assert(ok);
   std::cout << points.size() << " points and " << polygons.size() << " polygons" << std::endl;
 
+  if(argc == 0)
+    assert(points.size() == 12491 && polygons.size() == 24191);
+
   points.clear();
   polygons.clear();
   std::string gocad_string(gocad_file);
diff --git a/Stream_support/test/Stream_support/test_OBJ.cpp b/Stream_support/test/Stream_support/test_OBJ.cpp
new file mode 100644
index 00000000000..8d84ea557a8
--- /dev/null
+++ b/Stream_support/test/Stream_support/test_OBJ.cpp
@@ -0,0 +1,68 @@
+#include <CGAL/Simple_cartesian.h>
+
+#include <CGAL/IO/GOCAD.h>
+#include <CGAL/IO/polygon_soup_io.h>
+
+#include <iostream>
+#include <fstream>
+#include <vector>
+
+typedef CGAL::Simple_cartesian<double>                Kernel;
+typedef Kernel::Point_3                               Point;
+typedef std::vector<std::size_t>                      Face;
+
+int main(int argc, char** argv)
+{
+  const char* obj_file = (argc > 1) ? argv[1] : "data/90089.obj";
+
+  std::vector<Point> points;
+  std::vector<Face> polygons;
+
+  bool ok = CGAL::read_OBJ(obj_file, points, polygons);
+  assert(ok);
+  std::cout << points.size() << " points and " << polygons.size() << " polygons" << std::endl;
+
+  if(argc == 0)
+    assert(points.size() == 434 && polygons.size() == 864);
+
+  points.clear();
+  polygons.clear();
+  std::string obj_string(obj_file);
+  ok = CGAL::read_OBJ(obj_string, points, polygons);
+  assert(ok);
+
+  points.clear();
+  polygons.clear();
+  std::ifstream is(obj_file);
+  ok = CGAL::read_OBJ(is, points, polygons);
+  assert(ok);
+  is.close();
+
+  std::ofstream os("tmp.obj", std::ios::binary);
+  ok = CGAL::write_OBJ(os, points, polygons);
+  assert(ok);
+  os.close();
+
+  ok = CGAL::write_OBJ("tmp.obj", points, polygons);
+  assert(ok);
+
+  std::vector<Point> pts_backup = points;
+  std::vector<Face> pls_backup = polygons;
+
+  ok = CGAL::write_polygon_soup("tmp.obj", points, polygons);
+  assert(ok);
+
+  points.clear();
+  polygons.clear();
+
+  ok = CGAL::read_polygon_soup("tmp.obj", points, polygons);
+  assert(ok);
+
+  assert(points.size() == pts_backup.size());
+  for(std::size_t i=0; i<points.size(); ++i)
+    assert(CGAL::squared_distance(points[i], pts_backup[i]) < 1e-6);
+  assert(polygons == pls_backup);
+
+  std::cout << "Done!" << std::endl;
+  return EXIT_SUCCESS;
+}
diff --git a/Stream_support/test/Stream_support/test_OFF.cpp b/Stream_support/test/Stream_support/test_OFF.cpp
index c0c935dd363..516ce78658b 100644
--- a/Stream_support/test/Stream_support/test_OFF.cpp
+++ b/Stream_support/test/Stream_support/test_OFF.cpp
@@ -1,25 +1,68 @@
-#include <iostream>
-#include <fstream>
+#include <CGAL/Simple_cartesian.h>
 
 #include <CGAL/IO/OFF.h>
+#include <CGAL/IO/polygon_soup_io.h>
 
-#include <CGAL/Simple_cartesian.h>
+#include <fstream>
+#include <iostream>
 #include <vector>
 
-typedef CGAL::Simple_cartesian<double> Kernel;
-typedef Kernel::Point_3 Point;
-typedef std::vector<std::size_t> Face;
-int main()
+typedef CGAL::Simple_cartesian<double>                Kernel;
+typedef Kernel::Point_3                               Point;
+typedef std::vector<std::size_t>                      Face;
+
+int main(int argc, char** argv)
 {
-  std::ifstream in("data/cube.off");
+  const char* off_file = (argc > 1) ? argv[1] : "data/cube.off";
+
   std::vector<Point> points;
-  std::vector<Face> faces;
-  CGAL::read_OFF(in, points, faces);
-  in.close();
-  assert(points.size() == 8);
-  assert(faces.size() == 12);
+  std::vector<Face> polygons;
 
-  assert(CGAL::write_OFF(std::cout, points, faces));
+  bool ok = CGAL::read_OFF(off_file, points, polygons);
+  assert(ok);
+  std::cout << points.size() << " points and " << polygons.size() << " polygons" << std::endl;
 
-  return 0;
+  if(argc == 0)
+    assert(points.size() == 8 && polygons.size() == 12);
+
+  points.clear();
+  polygons.clear();
+  std::string off_string(off_file);
+  ok = CGAL::read_OFF(off_string, points, polygons);
+  assert(ok);
+
+  points.clear();
+  polygons.clear();
+  std::ifstream is(off_file);
+  ok = CGAL::read_OFF(is, points, polygons);
+  assert(ok);
+  is.close();
+
+  std::ofstream os("tmp.off", std::ios::binary);
+  ok = CGAL::write_OFF(os, points, polygons);
+  assert(ok);
+  os.close();
+
+  ok = CGAL::write_OFF("tmp.off", points, polygons);
+  assert(ok);
+
+  std::vector<Point> pts_backup = points;
+  std::vector<Face> pls_backup = polygons;
+
+  ok = CGAL::write_polygon_soup("tmp.off", points, polygons);
+  assert(ok);
+
+  points.clear();
+  polygons.clear();
+
+  ok = CGAL::read_polygon_soup("tmp.off", points, polygons);
+  assert(ok);
+
+  assert(points.size() == pts_backup.size());
+  for(std::size_t i=0; i<points.size(); ++i)
+    assert(CGAL::squared_distance(points[i], pts_backup[i]) < 1e-6);
+  assert(polygons == pls_backup);
+
+  std::cout << "Done!" << std::endl;
+  return EXIT_SUCCESS;
 }