--- a/quickSelfTest/RunUnitTests.st	Thu Mar 28 14:39:52 2019 +0100
+++ b/quickSelfTest/RunUnitTests.st	Thu Mar 28 15:25:46 2019 +0100
@@ -11,6 +11,39 @@
 	category:'tests-Regression'
 !
 
+TestCase subclass:#RunnerSelfTest
+	instanceVariableNames:''
+	classVariableNames:''
+	poolDictionaries:''
+	privateIn:RunUnitTests
+!
+
+!RunUnitTests::RunnerSelfTest methodsFor:'tests'!
+
+test01_shouldPass
+    self assert:true.
+!
+
+test02_shouldFail
+    self assert:false.
+!
+
+test03_shouldError
+    |zero|
+    zero := 0.
+    self assert:(10 / zero).
+!
+
+test04_shouldError
+    self assert:(10 foo).
+!
+
+test05_shouldBeSkipped
+    self skip:'this is skipped'.
+    self assert:(10 foo).
+! !
+
+
 !RunUnitTests class methodsFor:'documentation'!
 
 documentation
@@ -51,6 +84,7 @@
     debug:debug
 
     |arguments
+     possibleClassNames
      doRunSpecificUnitTests unitTestSuiteName excludedUnitTestClassNames corruptedUnitTestClassNames
      unitTestSuite
      eachClass
@@ -110,6 +144,13 @@
 	self logInfo:'run single test (forceTestCase): "%1"' with:forceTestCase.
     ].
 
+    index := arguments indexOf:'--testRunner'.
+    index > 0 ifTrue:[
+	arguments removeIndex:index.
+	forceTestCase := #'RunUnitTests::RunnerSelfTest'.
+	self logInfo:'execute runner self test'.
+    ].
+
     (doRunSpecificUnitTests not and:[forceTestCase isNil]) ifTrue:[
 	self logInfo:'configured to run all available unit tests'.
     ].
@@ -117,7 +158,10 @@
     "/ self logInfo:'collecting tests to run'.
     unitTestSuite := TestSuite named:unitTestSuiteName.
 
-    (Smalltalk at: #'stx_goodies_regression') classNames do:[:eachClassName |
+    possibleClassNames := (Smalltalk at: #'stx_goodies_regression') classNames.
+    possibleClassNames add:#'RunUnitTests::RunnerSelfTest'.
+
+    possibleClassNames do:[:eachClassName |
 	(excludedUnitTestClassNames includes:eachClassName) ifTrue:[
 	    self logInfo:'exclude test "%1".' with:eachClassName.
 	] ifFalse:[
@@ -175,7 +219,7 @@
 	].
     ].
 
-    self logInfo:'%1 unit test classes collected' with:unitTestSuite tests size.
+    self logInfo:'%1 unit test(s) collected' with:(unitTestSuite tests size).
 
     self logInfo:'start tests...'.
     result := unitTestSuite
@@ -188,7 +232,10 @@
 
 	    execTime := result lastOutcome executionTimeDuration.
 	    status := result lastOutcome result.
-	    self logInfo:'   Status: %1 (exec. Time: %2)' with:status with:execTime.
+	    self logInfo:'   %1 (%2)' with:status with:execTime.
+	    (status == TestResult stateFail or:[status == TestResult stateError]) ifTrue:[
+		self logInfo:'   ==================='.
+	    ]
 	]
 	debug:debug.
 
@@ -211,12 +258,13 @@
     self logInfo:'xml report generated in %1' with:(resultFilePathName ? 'testresult.xml') asFilename pathName.
 
     self logInfo:'Summary:'.
-    self logInfo:'  %1 tests' with:result tests size.
-    self logInfo:'  %1 run' with:result runCount.
-    self logInfo:'  %1 skipped' with:result skippedCount.
-    self logInfo:'  %1 passed' with:result passedCount.
-    self logInfo:'  %1 failed' with:result failureCount.
-    self logInfo:'  %1 errors' with:result errorCount.
+    self logInfo:('  %1 tests, %2 run (%3 skipped) / %4 passed, %5 failed, %6 errors'
+		bindWith:result tests size
+		with:result runCount
+		with:result skippedCount
+		with:result passedCount
+		with:result failureCount
+		with:result errorCount).
     "/ self logInfo:'  exec. time: %1' with:(TimeDuration fromSeconds:result executionTime).
 
     "Modified (format): / 16-05-2018 / 13:59:47 / sr"

--- a/quickSelfTest/RunUnitTestsStart.st	Thu Mar 28 14:39:52 2019 +0100
+++ b/quickSelfTest/RunUnitTestsStart.st	Thu Mar 28 15:25:46 2019 +0100
@@ -63,6 +63,7 @@
     Stderr nextPutLine:'  --forceTestCase testName .........class name of a test case (only this test case will be executed)'.
     Stderr nextPutLine:'  --run testName ...................same, shorter'.
     Stderr nextPutLine:'  --skip testName ..................skip a test class'.
+    Stderr nextPutLine:'  --testRunner .....................test the runner itself (please check the generated xml)'.
 
     "Modified: / 26-03-2019 / 18:47:53 / Claus Gittinger"
 ! !