Modify test command to have 16 shards

.github/workflows/test_common.yml

@@ -37,9 +37,7 @@ jobs:
     name: tests
     strategy:
       matrix:
-        shard: [ 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,
-              24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,
-              49,50,51,52,53,54,55,56,57,58,59,60,61,62]
+        shard: [ 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
 
     runs-on: ubuntu-latest
     timeout-minutes: 120
@@ -53,18 +51,14 @@ jobs:
     - uses: actions/setup-python@v4
       with:
         python-version: '3.12'
-        cache: 'pip' 
-  
+        cache: 'pip'
+
     - run: pip install -r requirements.txt
 
     - name: Run tests
       run: |
-        if [ "${{ matrix.shard }}" == 7 ]; then
-            pytest --reruns 2 --dist=loadfile tests/store/test_cursor_many_msgs.py -n 1  --alluredir=allure-results-${{ matrix.shard }}
-        elif [ "${{ matrix.shard }}" == 1 ]; then
-            pytest --dist=loadfile tests/relay/test_rln.py -n 1 --alluredir=allure-results-${{ matrix.shard }}
-        elif [ "${{ matrix.shard }}" != 1 ]; then
-            pytest  --ignore=tests/relay/test_rln.py --ignore=tests/store/test_cursor_many_msgs.py --reruns 2  -n=4 --shard-id=${{ matrix.shard }} --num-shards=63 --alluredir=allure-results-${{ matrix.shard }}
+        pytest -m "not rln and not store2000" --reruns 2 --shard-id=${{ matrix.shard }} 
+         --num-shards=16  --alluredir=allure-results-${{ matrix.shard }}
 
           fi  
 

tests/relay/test_rln.py

@@ -14,6 +14,7 @@ logger = get_custom_logger(__name__)
 
 
 @pytest.mark.xdist_group(name="RLN serial tests")
+@pytest.mark.rln
 @pytest.mark.skipif("go-waku" in (NODE_1 + NODE_2), reason="Test works only with nwaku")
 class TestRelayRLN(StepsRLN, StepsRelay):
     SAMPLE_INPUTS_RLN = SAMPLE_INPUTS + SAMPLE_INPUTS + SAMPLE_INPUTS

tests/store/test_cursor_many_msgs.py

@@ -11,6 +11,7 @@ class TestCursorManyMessages(StepsStore):
     # we implicitly test the reusabilty of the cursor for multiple nodes
 
     @pytest.mark.timeout(540)
+    @pytest.mark.store2000
     def test_get_multiple_2000_store_messages(self):
         expected_message_hash_list = []
         for i in range(2000):