test: add unit tests for wizard model-discovery helpers

Cover _fetch_local_models (LM Studio and Ollama parsing, error paths,
missing base_url), _fetch_lmstudio_available_models (happy path and
errors), and _load_lmstudio_model (success, API failure, exception).
All mocked via monkeypatch/MagicMock — no real HTTP calls.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/unit/test_setup_wizard.py

@@ -1,4 +1,6 @@
-"""Tests for setup wizard personalization helpers."""
+"""Tests for setup wizard personalization and model-discovery helpers."""
+
+from unittest.mock import MagicMock
 
 import pytest
 
@@ -90,3 +92,92 @@ def test_suggest_plugins_multiple_categories(monkeypatch):
     combined = " ".join(str(p) for p in panels)
     assert "email" in combined
     assert "ssh_tool" in combined
+
+
+# ── _fetch_local_models ────────────────────────────────────────────────────────
+
+def test_fetch_local_models_lmstudio_returns_model_ids(monkeypatch):
+    import pyra.setup.wizard as wiz
+    mock_resp = MagicMock()
+    mock_resp.json.return_value = {"data": [{"id": "gemma-4b"}, {"id": "llama3"}]}
+    mock_resp.raise_for_status = lambda: None
+    monkeypatch.setattr(wiz.httpx, "get", lambda *a, **kw: mock_resp)
+    from pyra.setup.providers import get_provider
+    assert wiz._fetch_local_models(get_provider("lmstudio")) == ["gemma-4b", "llama3"]
+
+
+def test_fetch_local_models_ollama_returns_model_names(monkeypatch):
+    import pyra.setup.wizard as wiz
+    mock_resp = MagicMock()
+    mock_resp.json.return_value = {"models": [{"name": "llama3:latest"}, {"name": "mistral"}]}
+    mock_resp.raise_for_status = lambda: None
+    monkeypatch.setattr(wiz.httpx, "get", lambda *a, **kw: mock_resp)
+    from pyra.setup.providers import get_provider
+    assert wiz._fetch_local_models(get_provider("ollama")) == ["llama3:latest", "mistral"]
+
+
+def test_fetch_local_models_returns_empty_on_connection_error(monkeypatch):
+    import pyra.setup.wizard as wiz
+    monkeypatch.setattr(wiz.httpx, "get", MagicMock(side_effect=Exception("conn refused")))
+    from pyra.setup.providers import get_provider
+    assert wiz._fetch_local_models(get_provider("lmstudio")) == []
+
+
+def test_fetch_local_models_returns_empty_when_no_base_url():
+    import pyra.setup.wizard as wiz
+    from pyra.setup.providers import Provider
+    provider = Provider(
+        id="test", display_name="Test", requires_key=False,
+        default_model="x", litellm_prefix="openai/", group="Local",
+    )
+    assert wiz._fetch_local_models(provider) == []
+
+
+# ── _fetch_lmstudio_available_models ──────────────────────────────────────────
+
+def test_fetch_lmstudio_available_models_returns_ids(monkeypatch):
+    import pyra.setup.wizard as wiz
+    mock_resp = MagicMock()
+    mock_resp.json.return_value = {"data": [{"id": "model-a"}, {"id": "model-b"}]}
+    mock_resp.raise_for_status = lambda: None
+    monkeypatch.setattr(wiz.httpx, "get", lambda *a, **kw: mock_resp)
+    assert wiz._fetch_lmstudio_available_models() == ["model-a", "model-b"]
+
+
+def test_fetch_lmstudio_available_models_returns_empty_on_error(monkeypatch):
+    import pyra.setup.wizard as wiz
+    monkeypatch.setattr(wiz.httpx, "get", MagicMock(side_effect=Exception("not found")))
+    assert wiz._fetch_lmstudio_available_models() == []
+
+
+def test_fetch_lmstudio_available_models_empty_data(monkeypatch):
+    import pyra.setup.wizard as wiz
+    mock_resp = MagicMock()
+    mock_resp.json.return_value = {"data": []}
+    mock_resp.raise_for_status = lambda: None
+    monkeypatch.setattr(wiz.httpx, "get", lambda *a, **kw: mock_resp)
+    assert wiz._fetch_lmstudio_available_models() == []
+
+
+# ── _load_lmstudio_model ──────────────────────────────────────────────────────
+
+def test_load_lmstudio_model_returns_true_on_success(monkeypatch):
+    import pyra.setup.wizard as wiz
+    mock_resp = MagicMock()
+    mock_resp.is_success = True
+    monkeypatch.setattr(wiz.httpx, "post", lambda *a, **kw: mock_resp)
+    assert wiz._load_lmstudio_model("gemma-4b") is True
+
+
+def test_load_lmstudio_model_returns_false_on_api_failure(monkeypatch):
+    import pyra.setup.wizard as wiz
+    mock_resp = MagicMock()
+    mock_resp.is_success = False
+    monkeypatch.setattr(wiz.httpx, "post", lambda *a, **kw: mock_resp)
+    assert wiz._load_lmstudio_model("gemma-4b") is False
+
+
+def test_load_lmstudio_model_returns_false_on_exception(monkeypatch):
+    import pyra.setup.wizard as wiz
+    monkeypatch.setattr(wiz.httpx, "post", MagicMock(side_effect=Exception("timeout")))
+    assert wiz._load_lmstudio_model("gemma-4b") is False