Improved message output on failure.

Fixed adding -g flag on debug build.

tests/MetricRegex.cpp

@@ -90,6 +90,9 @@ namespace Nektar
                         if (fabs(boost::lexical_cast<double>(okValues[i-1]) -
                                  boost::lexical_cast<double>(match)) > 1e-6)
                         {
+                            cout << "Failed tolerance match." << endl;
+                            cout << "  Expected: " << okValues[i-1] << endl;
+                            cout << "  Result:   " << match << endl;
                             return false;
                         }
                     }
@@ -98,6 +101,9 @@ namespace Nektar
                         // Case insensitive match.
                         if (!boost::iequals(match, okValues[i-1]))
                         {
+                            cout << "Failed case-insensitive match." << endl;
+                            cout << "  Expected: " << okValues[i-1] << endl;
+                            cout << "  Result:   " << match << endl;
                             return false;
                         }
                     }

tests/Tester.cpp

@@ -122,14 +122,20 @@ int main(int argc, char *argv[])
     // Construct command to run
     std::string command;
     command += PortablePath(std::string(BUILD_PATH) + "/" + file.GetExecutable());
-//#if defined(NDEBUG)
+#if defined(NDEBUG)
+#else
     command += "-g";
-//#endif
+#endif
     command += " " + file.GetParameters();
     command += " 1>output.out 2>output.err";
 
     // Run executable and perform tests.
     int status=system(command.c_str());
+    if (status)
+    {
+        cout << "Failed to execute command: " << command << endl;
+        return 1;
+    }
 
     // Open the output files and test against all metrics
     ifstream vStdout("output.out");
@@ -138,7 +144,6 @@ int main(int argc, char *argv[])
     {
         if (!metrics[i]->Test(vStdout, vStderr))
         {
-            cout << "FAILED" << endl;
             return 1;
         }
     }