Added test case for nan occuring in exported STL files

1 files changed, 163 insertions, 0 deletions

diff --git a/tests/cgalstlsanitytest.cc b/tests/cgalstlsanitytest.cc
new file mode 100644
index 0000000..a078dff
--- /dev/null
+++ b/tests/cgalstlsanitytest.cc
@@ -0,0 +1,163 @@
+/*
+ *  OpenSCAD (www.openscad.org)
+ *  Copyright (C) 2009-2011 Clifford Wolf <clifford@clifford.at> and
+ *                          Marius Kintel <marius@kintel.net>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  As a special exception, you have permission to link this program
+ *  with the CGAL library and distribute executables, as long as you
+ *  follow the requirements of the GNU GPL in regard to all of the
+ *  software in the executable aside from CGAL.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include "tests-common.h"
+#include "openscad.h"
+#include "node.h"
+#include "module.h"
+#include "context.h"
+#include "value.h"
+#include "export.h"
+#include "builtin.h"
+#include "Tree.h"
+#include "CGAL_Nef_polyhedron.h"
+#include "CGALEvaluator.h"
+#include "PolySetCGALEvaluator.h"
+
+#include <QApplication>
+#include <QFile>
+#include <QDir>
+#include <QSet>
+#include <QTextStream>
+#ifndef _MSC_VER
+#include <getopt.h>
+#endif
+#include <iostream>
+#include <assert.h>
+#include <sstream>
+
+std::string commandline_commands;
+QString currentdir;
+QString examplesdir;
+QString librarydir;
+
+using std::string;
+
+void cgalTree(Tree &tree)
+{
+	assert(tree.root());
+
+	CGALEvaluator evaluator(tree);
+	Traverser evaluate(evaluator, *tree.root(), Traverser::PRE_AND_POSTFIX);
+	evaluate.execute();
+}
+
+AbstractNode *find_root_tag(AbstractNode *n)
+{
+	foreach(AbstractNode *v, n->children) {
+		if (v->modinst->tag_root) return v;
+		if (AbstractNode *vroot = find_root_tag(v)) return vroot;
+	}
+	return NULL;
+}
+
+int main(int argc, char **argv)
+{
+	int retval = 0;
+
+	if (argc != 3) {
+		fprintf(stderr, "Usage: %s <file.scad> <output.txt>\n", argv[0]);
+		exit(1);
+	}
+
+	const char *filename = argv[1];
+	const char *outfilename = argv[2];
+
+	Builtins::instance()->initialize();
+
+	QApplication app(argc, argv, false);
+	QDir original_path = QDir::current();
+
+	currentdir = QDir::currentPath();
+
+	QDir libdir(QApplication::instance()->applicationDirPath());
+#ifdef Q_WS_MAC
+	libdir.cd("../Resources"); // Libraries can be bundled
+	if (!libdir.exists("libraries")) libdir.cd("../../..");
+#elif defined(Q_OS_UNIX)
+	if (libdir.cd("../share/openscad/libraries")) {
+		librarydir = libdir.path();
+	} else
+	if (libdir.cd("../../share/openscad/libraries")) {
+		librarydir = libdir.path();
+	} else
+	if (libdir.cd("../../libraries")) {
+		librarydir = libdir.path();
+	} else
+#endif
+	if (libdir.cd("libraries")) {
+		librarydir = libdir.path();
+	}
+
+	Context root_ctx;
+	register_builtin(root_ctx);
+
+	AbstractModule *root_module;
+	ModuleInstantiation root_inst;
+
+	root_module = parsefile(filename);
+	if (!root_module) {
+		exit(1);
+	}
+
+	QFileInfo fileInfo(filename);
+	QDir::setCurrent(fileInfo.absolutePath());
+
+	AbstractNode::resetIndexCounter();
+	AbstractNode *absolute_root_node = root_module->evaluate(&root_ctx, &root_inst);
+	AbstractNode *root_node;
+	// Do we have an explicit root node (! modifier)?
+	if (!(root_node = find_root_tag(absolute_root_node))) root_node = absolute_root_node;
+
+	Tree tree(root_node);
+
+	CGALEvaluator cgalevaluator(tree);
+ 	PolySetCGALEvaluator psevaluator(cgalevaluator);
+
+	CGAL_Nef_polyhedron N = cgalevaluator.evaluateCGALMesh(*root_node);
+
+	QDir::setCurrent(original_path.absolutePath());
+	if (!N.empty()) {
+		std::ofstream outfile;
+		outfile.open(outfilename);
+
+		std::stringstream out;
+		export_stl(&N, out, NULL);
+		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();
+	}
+
+	Builtins::instance(true);
+
+	return retval;
+}