tests: Move fixtures to conftest.py, and use in all existing applicable tests

src/tests/conftest.py

@@ -1,4 +1,6 @@
 """General pytest configuration, including fixtures."""
+import os
+import sys
 from typing import Callable, Optional
 
 import pytest
@@ -53,3 +55,25 @@ def eddn_message() -> Callable:
         return test_messages.get(msg_type)
 
     return _method
+
+
+@pytest.fixture
+def fix_sys_path() -> None:
+    """Set up an eddn.Gateway import."""
+    # Tests don't include the directory that `pytest` is run from on sys.path
+    sys.path.append(os.getcwd())
+
+
+@pytest.fixture(scope="session")
+def eddn_gateway():
+    """Set up an eddn.Gateway import."""
+    import eddn.Gateway
+
+    class CLArgs:
+        config = False
+
+    cl_args = CLArgs()
+    eddn.Gateway.load_config(cl_args)
+    eddn.Gateway.configure()
+
+    return eddn.Gateway

src/tests/gateway/test_parse_and_error_handle.py

@@ -1,32 +1,6 @@
 """Tests for eddn.Gateway.parse_and_error_handle."""
-import os
-import sys
 from typing import Callable
 
-import pytest
-
-
-@pytest.fixture
-def fix_sys_path() -> None:
-    """Set up an eddn.Gateway import."""
-    # Tests don't include the directory that `pytest` is run from on sys.path
-    sys.path.append(os.getcwd())
-
-
-@pytest.fixture(scope='module')
-def eddn_gateway():
-    """Set up an eddn.Gateway import."""
-    import eddn.Gateway
-
-    class CLArgs:
-        config = False
-
-    cl_args = CLArgs()
-    eddn.Gateway.load_config(cl_args)
-    eddn.Gateway.configure()
-
-    return eddn.Gateway
-
 
 def test_invalid_json(fix_sys_path, eddn_gateway, eddn_message: Callable) -> None:
     """Test invalid JSON input."""