STYLE: Increase test argument check and ending message consistency

Increase test argument check and ending message consistency:
- Remove the argument check where there are no input arguments other
  than the test name.
- Conform to ITK style guidelines in missing input argument and test
  ending message.

Modules/IO/ImageBase/test/itkImageFileReaderTest1.cxx

@@ -21,15 +21,9 @@
 
 
 int
-itkImageFileReaderTest1(int argc, char * argv[])
+itkImageFileReaderTest1(int itkNotUsed(argc), char * argv[])
 {
 
-  if (argc < 1)
-  {
-    std::cout << "usage: ITKImageIOBaseTestDriver itkImageFileReaderTest" << std::endl;
-    return EXIT_FAILURE;
-  }
-
   using ImageNDType = itk::Image<short, 2>;
   using ReaderType = itk::ImageFileReader<ImageNDType>;
 
@@ -49,5 +43,6 @@ itkImageFileReaderTest1(int argc, char * argv[])
   ITK_TRY_EXPECT_EXCEPTION(reader->Update());
 
 
+  std::cout << "Test finished." << std::endl;
   return EXIT_SUCCESS;
 }

Modules/Registration/RegistrationMethodsv4/test/itkImageRegistrationSamplingTest.cxx

@@ -43,5 +43,8 @@ itkImageRegistrationSamplingTest(int, char *[])
   {
     ITK_TRY_EXPECT_EXCEPTION(registrationMethod->SetMetricSamplingPercentage(errorValue));
   }
+
+
+  std::cout << "Test finished." << std::endl;
   return EXIT_SUCCESS;
 }

Modules/Segmentation/LevelSets/test/itkParallelSparseFieldLevelSetImageFilterTest.cxx

@@ -221,6 +221,7 @@ itkParallelSparseFieldLevelSetImageFilterTest(int argc, char * argv[])
 {
   if (argc < 2)
   {
+    std::cerr << "Missing parameters." << std::endl;
     std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv) << " OutputImage [InitImage [TargetImage]]\n";
     return EXIT_FAILURE;
   }
@@ -315,7 +316,6 @@ itkParallelSparseFieldLevelSetImageFilterTest(int argc, char * argv[])
 
   std::cout << mf << std::endl << std::flush;
 
-  std::cout << "Passed !" << std::endl << std::flush;
-
+  std::cout << "Test finished." << std::endl;
   return EXIT_SUCCESS;
 }