Add proxy client tests and auxiliary direct downloader

tests/test_lbry_client.py

@@ -0,0 +1,34 @@
+"""Tests for LBRY client helper behavior."""
+
+from lbry_client import LbryClient
+
+
+def test_create_odysee_proxy_client_defaults():
+    client = LbryClient.create_odysee_proxy(timeout=42)
+
+    assert client.api_url == LbryClient.ODYSEE_PROXY_URL
+    assert client.timeout == 42
+    assert client.backend_name == "Odysee public proxy"
+    assert client.supports_file_ops is False
+
+
+def test_find_controlling_channel_uses_claim_search(monkeypatch):
+    client = LbryClient.create_odysee_proxy()
+    captured = {}
+
+    def fake_claim_search(**kwargs):
+        captured.update(kwargs)
+        return {"items": [{"claim_id": "control123", "name": "@example"}]}
+
+    monkeypatch.setattr(client, "claim_search", fake_claim_search)
+
+    result = client.find_controlling_channel("@example")
+
+    assert result == {"claim_id": "control123", "name": "@example"}
+    assert captured["name"] == "@example"
+    assert captured["claim_type"] == ["channel"]
+    assert captured["is_controlling"] is True
+    assert captured["order_by"] == ["effective_amount"]
+    assert captured["page"] == 1
+    assert captured["page_size"] == 1
+