Replace nosetests with unittest

I don't think we need the XML output, so unittest should suffice.
Removes XML output from selenium tests. Closes #1030.

Author: lainets

doc/jenkins/README.md

@@ -1,11 +1,4 @@
-
-A+ is using a continuous integration server running Jenkins.
-The Jenkins is currently running at http://plustest.cs.hut.fi
-
-* The Jenkins UI at port 8080 is limited by firewall at Aalto University.
-* Test reports and test site are public to internet.
-* Pull requests at GitHub are automatically tested and commented by Jenkins.
-
+Jenkins is not currently used but the instructions and configurations are left here in case it will be used in the future. Note that the configurations want a `selenium_test_report.xml` file from the selenium tests but it is not produced anymore.
 
 Jenkins setup
 =============

requirements_testing.txt

@@ -3,6 +3,5 @@ coverage
 # Required to run browser tests:
 selenium
 pyvirtualdisplay
-nose
 django-debug-toolbar >= 3.2.2, < 4
 prospector

selenium_test/run_servers_and_tests.sh

@@ -2,22 +2,22 @@
 
 cd `dirname "$0"`/test
 
-TEST=nosetests
+TEST="python3 -m unittest"
 XVFB=`which xvfb-run`
 
 if [ -z "$WORKSPACE" ]; then
 	WORKSPACE=.
 fi
 
-if [ -n "$VENV_HOME" ]; then
-	TEST="$VENV_HOME/nosetests --verbosity=3 --with-xunit --xunit-file=$WORKSPACE/selenium_test_report.xml"
-fi
+echo "Starting servers..."
 
 trap '../kill_servers.sh' EXIT
 ../run_servers.sh
 
+echo "Running tests..."
+
 if [ -x "$XVFB" ]; then
-	$XVFB $TEST *_test.py
+	$XVFB $TEST discover -p "*_test.py"
 else
-	$TEST *_test.py
+	$TEST discover -p "*_test.py"
 fi