Update CI.yml

Author: fancaiyu

.github/workflows/CI.yml

@@ -3,10 +3,10 @@ name: CI
 on: 
   push:
     branches:
-      - master
+      - test
   pull_request:
     branches:
-      - master
+      - test
 
 permissions:
   contents: write
@@ -37,6 +37,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
+          pip install .
           pip install coverage
           pip install pytest pytest-cov
           pip install -r requirements.txt
@@ -48,7 +49,6 @@ jobs:
           export WORLD_SIZE=1
           export MASTER_ADDR=localhost
           export MASTER_PORT=12345
-          export PYTHONPATH=MCintegration
           pytest --cov --cov-report=xml --ignore=examples
 
       - name: Upload coverage to Codecov