Catch and report common top-level issues

1 files changed, 17 insertions, 7 deletions

diff --git a/tests/cgalstlsanitytest.cc b/tests/cgalstlsanitytest.cc
index d0d0077..7241482 100644
--- a/tests/cgalstlsanitytest.cc
+++ b/tests/cgalstlsanitytest.cc
@@ -132,17 +132,27 @@ int main(int argc, char **argv)
 	if (!N.empty()) {
 		std::ofstream outfile;
 		outfile.open(outfilename);
-
-		std::stringstream out;
-		export_stl(&N, out);
-		if (out.str().find("nan") != string::npos) {
-			outfile << "Error: nan found\n";
+			
+		if (N.dim != 3) {
+			outfile << "Error: Current top level object is not a 3D object.\n";
 			retval = 2;
 		}
-		if (out.str().find("inf") != string::npos) {
-			outfile << "Error: inf found\n";
+		else if (!N.p3->is_simple()) {
+			outfile << "Error: Object isn't a valid 2-manifold! Modify your design.\n";
 			retval = 2;
 		}
+		else {
+			std::stringstream out;
+			export_stl(&N, out);
+			if (out.str().find("nan") != string::npos) {
+				outfile << "Error: nan found\n";
+				retval = 2;
+			}
+			if (out.str().find("inf") != string::npos) {
+				outfile << "Error: inf found\n";
+				retval = 2;
+			}
+		}
 		outfile.close();
 	}