Support --unittest::testname

Allows you to run a single unit test from the command line

src/main.cc

@@ -112,8 +112,8 @@ int main(int argc, char *argv[])
     bool quietWindowsAsserts = false;   // Don't let asserts pop dialog boxes
     
     CmdLineOpt_t rgCmdLineOptions[] = {
-        { "--unittest",             &runUnitTests },
-        { "--no-windows-assert-ui", &quietWindowsAsserts },
+        { "--unittest",             &runUnitTests,          QString() },
+        { "--no-windows-assert-ui", &quietWindowsAsserts,   QString() },
         // Add additional command line option flags here
     };
     
@@ -140,7 +140,7 @@ int main(int argc, char *argv[])
         }
         
         // Run the test
-        int failures = AutoTest::run(argc-1, argv);
+        int failures = AutoTest::run(argc-1, argv, rgCmdLineOptions[0].optionArg);
         if (failures == 0)
         {
             qDebug() << "ALL TESTS PASSED";

src/qgcunittest/AutoTest.h

@@ -49,14 +49,16 @@ namespace AutoTest
 	}
     }
 
-    inline int run(int argc, char *argv[])
+    inline int run(int argc, char *argv[], QString& singleTest)
     { 
 	int ret = 0;
 	foreach (QObject* test, testList())
 	{
-        qgcApp()->destroySingletonsForUnitTest();
-        qgcApp()->createSingletonsForUnitTest();
-        ret += QTest::qExec(test, argc, argv);
+        if (singleTest.isEmpty() || singleTest == test->objectName()) {
+            qgcApp()->destroySingletonsForUnitTest();
+            qgcApp()->createSingletonsForUnitTest();
+            ret += QTest::qExec(test, argc, argv);
+        }
 	}
 	
 	return ret;