ci: try to run install tests

Author: DifferentialOrange

.github/workflows/testing.yml

@@ -148,6 +148,57 @@ jobs:
         env:
           TEST_TNT_SSL: ${{ matrix.tarantool == '2.10.0-1-gfa775b383-r486-linux-x86_64' }}
 
+  run_tests_with_install_linux:
+    # We want to run on external PRs, but not on our own internal
+    # PRs as they'll be run by the push to the branch.
+    #
+    # The main trick is described here:
+    # https://github.com/Dart-Code/Dart-Code/pull/2375
+    if: (github.event_name == 'push') ||
+      (github.event_name == 'pull_request' &&
+        github.event.pull_request.head.repo.full_name != github.repository)
+    runs-on: ubuntu-20.04
+
+    strategy:
+      fail-fast: false
+
+      matrix:
+        tarantool:
+          - '2.10'
+        python:
+          - '3.6'
+          - '3.7'
+          - '3.8'
+          - '3.9'
+          - '3.10'
+    steps:
+      - name: Clone the connector repo
+        uses: actions/checkout@v2
+
+      - name: Remove connector source code
+        run: |
+          rm -rf tarantool
+          rm setup.py
+
+      - name: Install tarantool ${{ matrix.tarantool }}
+        uses: tarantool/setup-tarantool@v1
+        with:
+          tarantool-version: ${{ matrix.tarantool }}
+
+      - name: Setup Python for tests
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: Install the package
+        run: pip install git+$GITHUB_SERVER_URL/$GITHUB_REPOSITORY"@"$GITHUB_REF_NAME
+
+      - name: Install test requirements
+        run: pip install -r requirements-test.txt
+
+      - name: Run tests
+        run: python -m unittest
+
   run_tests_ce_windows:
     # We want to run on external PRs, but not on our own internal
     # PRs as they'll be run by the push to the branch.