add pytest fixtures

tests/conftest.py

@@ -0,0 +1,51 @@
+import pytest 
+from git_fleximod.gitinterface import GitInterface
+import os
+import subprocess
+import logging
+from pathlib import Path
+
+@pytest.fixture(scope='session')
+def logger():
+    logging.basicConfig(
+        level=logging.INFO, format="%(name)s - %(levelname)s - %(message)s", handlers=[logging.StreamHandler()]
+    )
+    logger = logging.getLogger(__name__)
+    return logger
+
+@pytest.fixture
+def test_repo_base(tmp_path, logger):
+    test_dir = tmp_path / "test_repo"
+    test_dir.mkdir()
+    str_path = str(test_dir)
+    gitp = GitInterface(str_path, logger)
+    #subprocess.run(["git", "init"], cwd=test_dir)
+    assert test_dir.joinpath(".git").is_dir()
+    return test_dir
+
+@pytest.fixture(params=["modules/test"])
+def test_repo(request, test_repo_base, logger):
+    subrepo_path = request.param
+    gitp = GitInterface(str(test_repo_base), logger)
+    gitp.git_operation("submodule", "add", "--depth","1","--name","test_submodule", "https://github.com/ESMCI/mpi-serial.git", subrepo_path)
+    #    subprocess.run(
+    assert test_repo_base.joinpath(".gitmodules").is_file()
+    return test_repo_base
+
+@pytest.fixture
+def git_fleximod(test_repo):
+    def _run_fleximod(args, input=None):
+        cmd = ["git", "fleximod"] + args.split()
+        result = subprocess.run(cmd, cwd=test_repo, input=input, 
+                                stdout=subprocess.PIPE, stderr=subprocess.PIPE, 
+                                text=True)
+        return result
+    return _run_fleximod
+
+
+@pytest.fixture
+def deinit_submodule(test_repo, logger):
+    def _deinit(submodule_path):
+        gitp = GitInterface(str(test_repo), logger)
+        gitp.git_operation( "submodule", "deinit", "-f", submodule_path) 
+    yield _deinit