[Config] Cast keys to str on get/set/clear (#2217)

This is a step towards a more consistent front-end behaviour of Config, where errors are either circumvented or raised in the same way regardless of the driver being used.

Signed-off-by: Toby Harradine <tobyharradine@gmail.com>

tests/core/test_config.py

@@ -475,3 +475,18 @@ async def test_get_raw_mixes_defaults(config):
 
     subgroup = await config.get_raw("subgroup")
     assert subgroup == {"foo": True, "bar": False}
+
+
+@pytest.mark.asyncio
+async def test_cast_str_raw(config):
+    await config.set_raw(123, 456, value=True)
+    assert await config.get_raw(123, 456) is True
+    assert await config.get_raw("123", "456") is True
+    await config.clear_raw("123", 456)
+
+
+@pytest.mark.asyncio
+async def test_cast_str_nested(config):
+    config.register_global(foo={})
+    await config.foo.set({123: True, 456: {789: False}})
+    assert await config.foo() == {"123": True, "456": {"789": False}}