move conftest contents to asdf/conftest

asdf/conftest.py

@@ -1,4 +1,32 @@
+import os
+
+import pytest
+
 # We ignore these files because these modules create deprecation warnings on
 # import. When warnings are turned into errors this will completely prevent
 # test collection
 collect_ignore = ["stream.py"]
+
+
+@pytest.fixture(scope="session", autouse=True)
+def _temp_cwd(tmpdir_factory):
+    """
+    This fixture creates a temporary current working directory
+    for the test session, so that docstring tests that write files
+    don't clutter up the real cwd.
+    """
+    original_cwd = os.getcwd()
+    try:
+        os.chdir(tmpdir_factory.mktemp("cwd"))
+        yield
+    finally:
+        os.chdir(original_cwd)
+
+
+def pytest_addoption(parser):
+    parser.addoption(
+        "--jsonschema",
+        action="store_true",
+        default=False,
+        help="Run jsonschema test suite tests",
+    )