Use -t parameter

ci/appveyor/tests.cmd

@@ -11,6 +11,6 @@ pyrcc5 -version
 
 lrelease -version
 
-python -m unittest discover --start-directory src/sakia/tests
+python -m unittest discover --start-directory src/sakia/tests -t src
 
 if %errorlevel% neq 0 exit /b 1
\ No newline at end of file

ci/travis/test.sh

@@ -14,6 +14,5 @@ then
     sleep 3
 fi
 
-PYTHONPATH=$HOME/build/ucoin-io/sakia/src coverage run --source=sakia.core,sakia.gui,sakia.models \
-    python -m unittest discover --start-directory src/sakia/tests
+coverage run --source=sakia.core,sakia.gui,sakia.models python -m unittest discover --start-directory src/sakia/tests -t src