fix(agentfield): add test for issue #584

tests/test_issue_584.py

@@ -0,0 +1,63 @@
+"""Regression test for issue #584 — OpenRouter wav audio with streaming.
+
+Issue #584: OpenRouterProvider.generate_audio hardcoded stream=true while
+requesting audio.format="wav", which OpenRouter rejects for chat-audio models.
+The provider should request pcm16 over the wire and wrap the response as wav.
+"""
+
+from __future__ import annotations
+
+import base64
+import sys
+import types
+from pathlib import Path
+
+import pytest
+
+SDK_PACKAGE_DIR = Path(__file__).resolve().parents[1] / "sdk" / "python" / "agentfield"
+agentfield_pkg = types.ModuleType("agentfield")
+agentfield_pkg.__path__ = [str(SDK_PACKAGE_DIR)]
+sys.modules.setdefault("agentfield", agentfield_pkg)
+
+from agentfield.media_providers import OpenRouterProvider
+
+
+@pytest.mark.asyncio
+async def test_issue_584(monkeypatch):
+    """
+    OpenRouter chat-audio generation with format="wav" should not send wav
+    while stream=true, because OpenRouter only accepts pcm16 for streaming.
+    """
+    monkeypatch.setenv("OPENROUTER_API_KEY", "sk-test-issue-584")
+
+    provider = OpenRouterProvider()
+    provider._model_meta_cache["openai/gpt-audio-mini"] = {
+        "id": "openai/gpt-audio-mini",
+        "output_modalities": ["text", "audio"],
+        "input_modalities": ["text"],
+    }
+
+    captured_payload = {}
+
+    async def fake_stream_openrouter_audio(payload, headers, **kwargs):
+        captured_payload.update(payload)
+        pcm16_b64 = base64.b64encode(b"\x00\x00\x01\x00").decode("ascii")
+        return pcm16_b64, "Hello world"
+
+    monkeypatch.setattr(
+        provider,
+        "_stream_openrouter_audio",
+        fake_stream_openrouter_audio,
+    )
+
+    result = await provider.generate_audio(
+        text="Hello world",
+        model="openrouter/openai/gpt-audio-mini",
+        format="wav",
+    )
+
+    assert captured_payload["stream"] is True
+    assert captured_payload["audio"]["format"] == "pcm16"
+    assert result.audio is not None
+    assert result.audio.format == "wav"
+    assert base64.b64decode(result.audio.data).startswith(b"RIFF")