refactor: move KNOWN_KEYS to core/config.py and assert key not persisted in test

Signed-off-by: 🄂ʏᴇᴅ 🄰ʙᴅᴜʟ 🄰ᴍᴀ🄝 ✧ <amanbaba9404522@gmail.com>

Author: P-r-e-m-i-u-m

src/pumpfun_cli/commands/config.py

@@ -2,7 +2,7 @@
 
 import typer
 
-from pumpfun_cli.core.config import delete_config_value, load_config, save_config_value
+from pumpfun_cli.core.config import KNOWN_KEYS, delete_config_value, load_config, save_config_value
 from pumpfun_cli.group import JsonAwareGroup
 from pumpfun_cli.output import error, render
 
@@ -18,8 +18,6 @@ def _config_callback(ctx: typer.Context):
         raise SystemExit(0)
 
 
-KNOWN_KEYS = {"rpc", "keyfile", "priority_fee", "compute_units"}
-
 
 @app.command("set")
 def config_set(ctx: typer.Context, key: str, value: str):

src/pumpfun_cli/core/config.py

@@ -57,6 +57,7 @@ def delete_config_value(key: str):
     "compute_units": "PUMPFUN_COMPUTE_UNITS",
 }
 
+KNOWN_KEYS: frozenset[str] = frozenset(ENV_MAP)
 
 def resolve_value(key: str, flag: str | None = None) -> str | None:
     if flag is not None:

tests/test_commands/test_config_cmd.py

@@ -83,9 +83,16 @@ def test_config_get_json_trailing(tmp_path, monkeypatch):
 
 
 def test_config_set_unknown_key(tmp_path, monkeypatch):
-    """config set rejects unknown config keys."""
+    """config set rejects unknown config keys and does not persist them."""
     monkeypatch.setenv("XDG_CONFIG_HOME", str(tmp_path))
     result = runner.invoke(app, ["config", "set", "rpcc", "https://example.com"])
     assert result.exit_code != 0
     assert "unknown config key" in result.output.lower()
     assert "valid keys" in result.output.lower()
+
+    # Assert the invalid key was not persisted
+    list_result = runner.invoke(app, ["--json", "config", "list"])
+    assert list_result.exit_code == 0
+    import json
+    data = json.loads(list_result.output) if list_result.output.strip() else {}
+    assert "rpcc" not in data