Squish: Fix error handling

Change-Id: I896ce824a0c75d47f7b123f80937e81793cc33e8
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

tests/system/shared/build_utils.py

@@ -57,7 +57,7 @@ def checkCompile():
     waitFor("len(str(output.plainText))>0",5000)
     if compileSucceeded(output.plainText):
         if os.getenv("SYSTEST_DEBUG") == "1":
-            test.log("Compile Output:\n%s" % output.plainText)
+            test.log("Compile Output:\n%s" % str(output.plainText))
         test.passes("Compile successful")
         return True
     else:

tests/system/suite_CCOM/tst_CCOM01/test.py

@@ -58,7 +58,7 @@ def main():
         compileOutput = waitForObject(":Qt Creator.Compile Output_Core::OutputWindow")
         if not test.verify(compileSucceeded(compileOutput.plainText),
                            "Verifying building of existing complex qt application."):
-            test.log(compileOutput.plainText)
+            test.log(str(compileOutput.plainText))
     # exit
     invokeMenuItem("File", "Exit")
 # no cleanup needed, as whole testing directory gets properly removed after test finished

tests/system/suite_SCOM/tst_SCOM01/test.py

@@ -50,6 +50,6 @@ def main():
         compileOutput = waitForObject(":Qt Creator.Compile Output_Core::OutputWindow")
         if not test.verify(compileSucceeded(compileOutput.plainText),
                            "Verifying building of simple qt quick application."):
-            test.log(compileOutput.plainText)
+            test.log(str(compileOutput.plainText))
     # exit qt creator
     invokeMenuItem("File", "Exit")