Filter out program version text from command-line-example output

Updated reflog to reflect change in command-line-example output

src/core/test/core-example-command-line.reflog

@@ -1,5 +1,6 @@
 
-command-line-example
+command-line-example:
+
 Initial values:
 intArg:   1
 boolArg:  false

src/core/test/examples-as-tests-test-suite.cc

@@ -41,6 +41,50 @@ using namespace ns3;
 namespace ns3 {
 
 namespace tests {
+
+/**
+ * \ingroup examples-as-tests
+ * Run command line example as a test case
+ */
+class CommandLineExampleTestCase : public ExampleAsTestCase
+{
+public:
+  /**
+   * Default constructor
+   */
+  CommandLineExampleTestCase();
+
+  /**
+   * Destructor
+   */
+  virtual ~CommandLineExampleTestCase();
+
+  //Inherited function
+  virtual std::string GetPostProcessingCommand (void) const;
+};
+
+CommandLineExampleTestCase::CommandLineExampleTestCase ()
+    :   ExampleAsTestCase ("core-example-command-line", 
+                           "command-line-example",
+                           NS_TEST_SOURCEDIR)
+{}
+
+CommandLineExampleTestCase::~CommandLineExampleTestCase ()
+{}
+
+/**
+ * Override this function to filter the version string from
+ * the command-line-example output.
+ * Since the version changes each time a commit is made it shouldn't
+ * be tested as part of the command-line-example output
+ */
+std::string
+CommandLineExampleTestCase::GetPostProcessingCommand (void) const
+{
+  //Delete the line that starts with Program Version: 
+  return std::string(R"__(| sed -e "/^Program Version:.*$/d")__");
+}
+
 /**
  * \ingroup examples-as-tests
  * Run examples as tests, checking stdout for regressions.
@@ -59,7 +103,7 @@ ExamplesAsTestsTestSuite::ExamplesAsTestsTestSuite ()
 
   AddTestCase (new ExampleAsTestCase ("core-example-sample-random-variable", "sample-random-variable", NS_TEST_SOURCEDIR));
 
-  AddTestCase (new ExampleAsTestCase ("core-example-command-line", "command-line-example", NS_TEST_SOURCEDIR));
+  AddTestCase (new CommandLineExampleTestCase ());
 }
 
 /**
@@ -76,7 +120,7 @@ static ExamplesAsTestsTestSuite g_examplesAsTestsTestSuite;
  * Tests ExampleTestSuite which runs a single example as test suite as specified in constructor arguments.
  */
 
-static ExampleAsTestSuite g_exampleCommandLineTest ("core-example-command-line", "command-line-example", NS_TEST_SOURCEDIR);
+static ExampleAsTestSuite g_exampleCommandLineTest ("core-example-simulator", "sample-simulator", NS_TEST_SOURCEDIR);
 
 }  // namespace tests