TT#139455 test: define cache_dir inside results

* remove support for local result

We need to force using /code volumen as read-only
to detect problems with the test environment

Change-Id: Idce04b1b00caf22562fc4161eb52317459aee03d

Makefile

@@ -61,5 +61,5 @@ perlcheck:
 
 test:
 	mkdir -p $(RESULTS)
-	cd t ; py.test-3 --junit-xml=../$(RESULTS)/pytest.xml -vv -l
+	cd t ; py.test-3 --junit-xml=$(RESULTS)/pytest.xml -vv -l
 # EOF

t/Dockerfile

@@ -24,11 +24,11 @@ WORKDIR /code/
 # (jump to the next section if you don't want to build yourself!):
 #
 # % docker build --tag="ngcpcfg-bullseye" -f ./t/Dockerfile .
-# % docker run --rm -i -t -v $(pwd):/code:rw ngcpcfg-bullseye:latest bash
+# % docker run --rm -i -t -v /tmp/results:/results:rw -v $(pwd):/code:rw ngcpcfg-bullseye:latest bash
 #
 # Use the existing docker image:
 # % docker pull docker.mgm.sipwise.com/ngcpcfg-bullseye
-# % docker run --rm -i -t -v $(pwd):/code:rw docker.mgm.sipwise.com/ngcpcfg-bullseye:latest bash
+# % docker run --rm -i -t -v /tmp/results:/results:rw -v $(pwd):/code:ro docker.mgm.sipwise.com/ngcpcfg-bullseye:latest bash
 #
 # Inside docker (the command is in history, just press UP button):
 #   cd /code && ./t/testrunner

t/pytest.ini

@@ -1,6 +1,7 @@
 [pytest]
 junit_family=xunit2
 python_files=*.py
+cache_dir = /results/.cache/pytest
 markers =
   apply
   build

t/testrunner

@@ -5,15 +5,4 @@
 set -e
 set -u
 
-if [ -d /results ] ; then
-  # Running from Jenkins (RW)
-  RESULTS="/results"
-
-  cd "/code"
-else
-  # Running locally in Docker
-  RESULTS="./results"
-  mkdir -p "${RESULTS}"
-fi
-
-RESULTS=${RESULTS} make test
+RESULTS=/results make test