[V3] Make pytest fixtures available as a plugin (#1858)

* Move all fixtures to pytest plugin folder

* Add core dunder all

* Update other dunder all's

* Black reformat

tests/core/test_cog_manager.py

@@ -2,19 +2,10 @@ from pathlib import Path
 
 import pytest
 
+from redbot.pytest.cog_manager import *
 from redbot.core import cog_manager
 
 
-@pytest.fixture()
-def cog_mgr(red):
-    return red.cog_mgr
-
-
-@pytest.fixture()
-def default_dir(red):
-    return red.main_dir
-
-
 @pytest.mark.skip
 @pytest.mark.asyncio
 async def test_ensure_cogs_in_paths(cog_mgr, default_dir):

tests/core/test_data_manager.py

@@ -3,28 +3,10 @@ from pathlib import Path
 
 import pytest
 
+from redbot.pytest.data_manager import *
 from redbot.core import data_manager
 
 
-@pytest.fixture(autouse=True)
-def cleanup_datamanager():
-    data_manager.basic_config = None
-    data_manager.jsonio = None
-
-
-@pytest.fixture()
-def data_mgr_config(tmpdir):
-    default = data_manager.basic_config_default.copy()
-    default["BASE_DIR"] = str(tmpdir)
-    return default
-
-
-@pytest.fixture()
-def cog_instance():
-    thing = type("CogTest", (object,), {})
-    return thing()
-
-
 def test_no_basic(cog_instance):
     with pytest.raises(RuntimeError):
         data_manager.core_data_path()

tests/core/test_rpc.py

@@ -1,52 +1,7 @@
 import pytest
-from redbot.core.rpc import RPC, RPCMixin, get_name
 
-from unittest.mock import MagicMock
-
-
-@pytest.fixture()
-def rpc():
-    return RPC()
-
-
-@pytest.fixture()
-def rpcmixin():
-    r = RPCMixin()
-    r.rpc = MagicMock(spec=RPC)
-    return r
-
-
-@pytest.fixture()
-def cog():
-    class Cog:
-        async def cofunc(*args, **kwargs):
-            pass
-
-        async def cofunc2(*args, **kwargs):
-            pass
-
-        async def cofunc3(*args, **kwargs):
-            pass
-
-        def func(*args, **kwargs):
-            pass
-
-    return Cog()
-
-
-@pytest.fixture()
-def existing_func(rpc, cog):
-    rpc.add_method(cog.cofunc)
-
-    return cog.cofunc
-
-
-@pytest.fixture()
-def existing_multi_func(rpc, cog):
-    funcs = [cog.cofunc, cog.cofunc2, cog.cofunc3]
-    rpc.add_multi_method(*funcs)
-
-    return funcs
+from redbot.pytest.rpc import *
+from redbot.core.rpc import get_name
 
 
 def test_get_name(cog):