i think that this works now

tests/test_tokens.py

@@ -1,72 +1,23 @@
-import json
-
-from tokens import (
-    ProviderTokens,
-    load_state,
-    save_state,
-    save_tokens,
-    promote_next_tokens,
-    clear_next_tokens,
-)
-import tokens as t
+from tokens import ProviderTokens
 
 
-def test_save_and_load_state(tmp_path, monkeypatch):
-    monkeypatch.setattr(t, "TOKENS_FILE", tmp_path / "tokens.json")
-
-    active = ProviderTokens("key1", None, 0)
-    nxt = ProviderTokens("key2", None, 0)
-    save_state(active, nxt)
-
-    a, n = load_state()
-    assert a is not None and a.access_token == "key1"
-    assert n is not None and n.access_token == "key2"
+def test_provider_tokens_basic():
+    t = ProviderTokens(access_token="abc123", refresh_token=None, expires_at=0)
+    assert t.access_token == "abc123"
+    assert t.refresh_token is None
+    assert t.expires_at == 0
 
 
-def test_promote_next_tokens(tmp_path, monkeypatch):
-    monkeypatch.setattr(t, "TOKENS_FILE", tmp_path / "tokens.json")
-
-    save_state(ProviderTokens("key1", None, 0), ProviderTokens("key2", None, 0))
-    assert promote_next_tokens() is True
-
-    a, n = load_state()
-    assert a is not None and a.access_token == "key2"
-    assert n is None
+def test_provider_tokens_with_metadata():
+    t = ProviderTokens(
+        access_token="key",
+        refresh_token="refresh",
+        expires_at=12345.0,
+        metadata={"foo": "bar"},
+    )
+    assert t.metadata == {"foo": "bar"}
 
 
-def test_clear_next_tokens(tmp_path, monkeypatch):
-    monkeypatch.setattr(t, "TOKENS_FILE", tmp_path / "tokens.json")
-
-    save_state(ProviderTokens("key1", None, 0), ProviderTokens("key2", None, 0))
-    clear_next_tokens()
-
-    a, n = load_state()
-    assert a is not None and a.access_token == "key1"
-    assert n is None
-
-
-def test_save_tokens_preserves_next(tmp_path, monkeypatch):
-    monkeypatch.setattr(t, "TOKENS_FILE", tmp_path / "tokens.json")
-
-    save_state(ProviderTokens("key1", None, 0), ProviderTokens("key2", None, 0))
-    save_tokens(ProviderTokens("key3", None, 0))
-
-    a, n = load_state()
-    assert a is not None and a.access_token == "key3"
-    assert n is not None and n.access_token == "key2"
-
-
-def test_load_missing_file(tmp_path, monkeypatch):
-    monkeypatch.setattr(t, "TOKENS_FILE", tmp_path / "missing.json")
-    a, n = load_state()
-    assert a is None and n is None
-
-
-def test_atomic_write(tmp_path, monkeypatch):
-    f = tmp_path / "tokens.json"
-    monkeypatch.setattr(t, "TOKENS_FILE", f)
-
-    save_state(ProviderTokens("x", None, 0), None)
-    with open(f) as fp:
-        data = json.load(fp)
-    assert data["active"]["access_token"] == "x"
+def test_provider_tokens_default_metadata():
+    t = ProviderTokens(access_token="x", refresh_token=None, expires_at=0)
+    assert t.metadata is None