BUG: Remove unintended << concatenation of literals in test output

Avoided unintended concatenations, like "zeroMemory", "outputbackground",
"inputImageFilemaskImageFile", etc., which appeared on standard output when
inserting multiple literal strings consecutively into the output stream.
Separated those concatenated words either by a single space character, or by a
period _and_ a space (whichever is appropriate).

Modules/Core/Common/test/itkMemoryProbesCollecterBaseTest.cxx

@@ -59,8 +59,8 @@ itkMemoryProbesCollecterBaseTest(int, char *[])
   std::cout << " Total Value " << probe.GetTotal() << std::endl;
   if (total == 0)
   {
-    std::cout << "WARNING: Total memory usage should be greater than zero"
-              << "Memory Probes do not work on this platform" << std::endl;
+    std::cout << "WARNING: Total memory usage should be greater than zero. Memory Probes do not work on this platform"
+              << std::endl;
     delete[] buf;
     return EXIT_SUCCESS;
   }

Modules/Filtering/ImageGrid/test/itkResampleImageTest2Streaming.cxx

@@ -66,10 +66,8 @@ itkResampleImageTest2Streaming(int argc, char * argv[])
   {
     std::cerr << "Missing parameters." << std::endl;
     std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv);
-    std::cerr << "inputImage referenceImage "
-              << "resampledImageLinear resampledImageNonLinear "
-              << "resampledImageLinearNearestExtrapolate"
-              << "resampledImageNonLinearNearestExtrapolate";
+    std::cerr << "inputImage referenceImage resampledImageLinear resampledImageNonLinear "
+                 "resampledImageLinearNearestExtrapolate resampledImageNonLinearNearestExtrapolate";
     std::cerr << std::endl;
     return EXIT_FAILURE;
   }

Modules/Filtering/LabelMap/test/itkStatisticsRelabelLabelMapFilterTest1.cxx

@@ -32,8 +32,8 @@ itkStatisticsRelabelLabelMapFilterTest1(int argc, char * argv[])
   if (argc < 6)
   {
     std::cerr << "Missing Parameters." << std::endl;
-    std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv) << " input feature output"
-              << "background reverseOrdering attribute" << std::endl;
+    std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv)
+              << " input feature output background reverseOrdering attribute" << std::endl;
     return EXIT_FAILURE;
   }
 

Modules/Filtering/Thresholding/test/itkRenyiEntropyMaskedThresholdImageFilterTest.cxx

@@ -31,12 +31,8 @@ itkRenyiEntropyMaskedThresholdImageFilterTest(int argc, char * argv[])
   {
     std::cerr << "Missing parameters." << std::endl;
     std::cerr << "Usage:" << std::endl;
-    std::cerr << itkNameOfTestExecutableMacro(argv) << " inputImageFile"
-              << " maskImageFile"
-              << " outputImageFile"
-              << " maskOutput"
-              << " maskValue"
-              << "expectedThreshold" << std::endl;
+    std::cerr << itkNameOfTestExecutableMacro(argv)
+              << " inputImageFile maskImageFile outputImageFile maskOutput maskValue expectedThreshold" << std::endl;
     return EXIT_FAILURE;
   }
 

Modules/IO/CSV/test/itkCSVArray2DFileReaderTest.cxx

@@ -146,8 +146,7 @@ itkCSVArray2DFileReaderTest(int argc, char * argv[])
   }
   if (!caught)
   {
-    std::cerr << "An exception should have been caught here as the filename does"
-              << "not exist! Test fails." << std::endl;
+    std::cerr << "An exception should have been caught here as the filename does not exist! Test fails." << std::endl;
     return EXIT_FAILURE;
   }
 

Modules/IO/CSV/test/itkCSVNumericObjectFileWriterTest.cxx

@@ -74,14 +74,13 @@ itkCSVNumericObjectFileWriterTest(int argc, char * argv[])
   {
     caught = true;
     std::cerr << "Exception caught!" << std::endl;
-    std::cerr << "This is an expected exception as there is no input"
-              << "file provided." << std::endl;
+    std::cerr << "This is an expected exception as there is no input file provided." << std::endl;
     std::cerr << exp << std::endl;
   }
   if (!caught)
   {
-    std::cerr << "An exception should have been caught here as there"
-              << "is no input file provided. Test fails." << std::endl;
+    std::cerr << "An exception should have been caught here as there is no input file provided. Test fails."
+              << std::endl;
     return EXIT_FAILURE;
   }
 
@@ -104,8 +103,8 @@ itkCSVNumericObjectFileWriterTest(int argc, char * argv[])
   }
   if (!caught)
   {
-    std::cerr << "An exception should have been caught here as there is no"
-              << "input object to write out. Test fails." << std::endl;
+    std::cerr << "An exception should have been caught here as there is no input object to write out. Test fails."
+              << std::endl;
     return EXIT_FAILURE;
   }
 

Modules/IO/TIFF/test/itkTIFFImageIOCompressionTest.cxx

@@ -141,9 +141,7 @@ itkTIFFImageIOCompressionTest(int argc, char * argv[])
   if (argc < 4)
   {
     std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv) << " inputFile"
-              << " outputFile"
-              << "compression"
-              << "[JPEGQuality]" << std::endl;
+              << " outputFile compression [JPEGQuality]" << std::endl;
     return EXIT_FAILURE;
   }
 

Modules/Numerics/Statistics/test/itkMahalanobisDistanceMetricTest.cxx

@@ -243,8 +243,9 @@ itkMahalanobisDistanceMetricTest(int, char *[])
   try
   {
     distance->Evaluate(measurementSingleComponent, measurementSingleComponent3);
-    std::cerr << "Attempting to compute distance between unequal size measurement vectors"
-              << "Exception should have been thrown: " << std::endl;
+    std::cerr
+      << "Attempting to compute distance between unequal size measurement vectors. Exception should have been thrown: "
+      << std::endl;
     return EXIT_FAILURE;
   }
   catch (const itk::ExceptionObject & excpt)

Modules/Segmentation/Classifiers/test/itkImageClassifierFilterTest.cxx

@@ -251,8 +251,8 @@ itkImageClassifierFilterTest(int argc, char * argv[])
   try
   {
     filter->Update();
-    std::cerr << "Attempting to run a classification without setting"
-              << "decision rule, should throw an exception" << std::endl;
+    std::cerr << "Attempting to run a classification without setting decision rule, should throw an exception"
+              << std::endl;
     return EXIT_FAILURE;
   }
   catch (const itk::ExceptionObject & excp)

Modules/Segmentation/Classifiers/test/itkSampleClassifierFilterTest1.cxx

@@ -187,8 +187,8 @@ itkSampleClassifierFilterTest1(int, char *[])
   try
   {
     filter->Update();
-    std::cerr << "Attempting to run a classification without setting"
-              << "decision rule, should throw an exception" << std::endl;
+    std::cerr << "Attempting to run a classification without setting decision rule, should throw an exception"
+              << std::endl;
     return EXIT_FAILURE;
   }
   catch (const itk::ExceptionObject & excp)

Modules/Segmentation/Classifiers/test/itkSampleClassifierFilterTest3.cxx

@@ -179,8 +179,8 @@ itkSampleClassifierFilterTest3(int, char *[])
   try
   {
     filter->Update();
-    std::cerr << "Exception should be thrown since weight array has size different"
-              << "from the number of classes set" << std::endl;
+    std::cerr << "Exception should be thrown since weight array has size different from the number of classes set"
+              << std::endl;
     return EXIT_FAILURE;
   }
   catch (const itk::ExceptionObject & excp)