add precision test for #103

test/integration/CMakeLists.txt

@@ -42,6 +42,7 @@ set(tests
   plugin_bool.cc
   plugin_include.cc
   pose_1_9_sdf.cc
+  precision.cc
   print_config.cc
   provide_feedback.cc
   root_dom.cc

test/integration/precision.cc

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2015 Open Source Robotics Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+*/
+
+#include <gtest/gtest.h>
+#include <string>
+#include "sdf/sdf.hh"
+
+std::string get_sdf_string()
+{
+  std::ostringstream stream;
+  stream
+    << "<sdf version='" << SDF_VERSION << "'>"
+    << "<model name=\"test\">"
+    << "  <link name=\"link\">"
+    << "    <visual name=\"visual\">"
+    << "      <geometry>"
+    << "        <sphere><radius>182536.87</radius></sphere>"
+    << "      </geometry>"
+    << "    </visual>"
+    << "  </link>"
+    << "</model>"
+    << "</sdf>";
+  return stream.str();
+}
+
+////////////////////////////////////////
+// make sure that XML errors get caught
+TEST(Precision, StringToDouble)
+{
+  sdf::SDFPtr model(new sdf::SDF());
+  sdf::init(model);
+  ASSERT_TRUE(sdf::readString(get_sdf_string(), model));
+
+  sdf::ElementPtr modelElem = model->Root()->GetElement("model");
+  EXPECT_TRUE(modelElem->HasElement("link"));
+  sdf::ElementPtr linkElem = modelElem->GetElement("link");
+  EXPECT_TRUE(linkElem->HasElement("visual"));
+  sdf::ElementPtr visualElem = linkElem->GetElement("visual");
+  EXPECT_TRUE(visualElem->HasElement("geometry"));
+  sdf::ElementPtr geomElem = visualElem->GetElement("geometry");
+  EXPECT_TRUE(geomElem->HasElement("sphere"));
+  sdf::ElementPtr sphereElem = geomElem->GetElement("sphere");
+  EXPECT_TRUE(sphereElem->HasElement("radius"));
+  sdf::ElementPtr radiusElem = sphereElem->GetElement("radius");
+
+  std::cout << std::setprecision(10) << radiusElem->Get<double>() << std::endl;
+
+  EXPECT_DOUBLE_EQ(radiusElem->Get<double>(), 182536.87);
+}