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from __future__ import annotations
import asyncio
import base64
from collections.abc import Awaitable, Callable
from typing import Any, cast
import aiohttp
import pytest
from aiohttp import ClientSession, web
from aiohttp.test_utils import TestClient, TestServer
from rtsp_to_webrtc.client import get_adaptive_client, get_diagnostics
from rtsp_to_webrtc.exceptions import ClientError
OFFER_SDP = "v=0\r\no=carol 28908764872 28908764872 IN IP4 100.3.6.6\r\n..."
ANSWER_SDP = "v=0\r\no=bob 2890844730 2890844730 IN IP4 h.example.com\r\n..."
ANSWER_PAYLOAD = base64.b64encode(ANSWER_SDP.encode("utf-8")).decode("utf-8")
RTSP_URL = "rtsp://example"
STREAM_1 = {
"name": "test video",
"channels": {
"0": {
"name": "ch1",
"url": "rtsp://example",
},
"1": {
"name": "ch2",
"url": "rtsp://example",
},
},
}
SUCCESS_RESPONSE = {
"status": 1,
"payload": "success",
}
@pytest.fixture
def event_loop() -> Any:
loop = asyncio.get_event_loop()
yield loop
@pytest.fixture
def cli_cb(
loop: Any,
app: web.Application,
aiohttp_client: Callable[[web.Application], Awaitable[TestClient]],
) -> Callable[[], Awaitable[TestClient]]:
"""Creates a fake aiohttp client."""
async def func() -> TestClient:
return await aiohttp_client(app)
return func
async def test_adaptive_web_client(
cli_cb: Callable[[], Awaitable[TestClient]],
app: web.Application,
request_handler: Callable[[aiohttp.web.Request], Awaitable[aiohttp.web.Response]],
) -> None:
"""Test adaptive client picks Web when both succeed."""
app.router.add_get("/streams", request_handler)
app.router.add_get("/static", request_handler)
app.router.add_post("/stream/{stream_id}/add", request_handler)
app.router.add_post(
"/stream/{stream_id}/channel/{channel_id}/webrtc", request_handler
)
cli = await cli_cb()
assert isinstance(cli.server, TestServer)
# Web heartbeat
cli.server.app["response"].append(
aiohttp.web.json_response(
{
"status": 1,
"payload": {
"demo1": STREAM_1,
},
}
)
)
# WebRTC heartbeat
cli.server.app["response"].append(
aiohttp.web.Response(status=404),
)
# List call
cli.server.app["response"].append(
aiohttp.web.json_response(
{
"status": 1,
"payload": {},
}
)
)
# Add stream
cli.server.app["response"].append(aiohttp.web.json_response(SUCCESS_RESPONSE))
# Web Offer
cli.server.app["response"].append(aiohttp.web.Response(body=ANSWER_PAYLOAD))
client = await get_adaptive_client(cast(ClientSession, cli))
answer_sdp = await client.offer(OFFER_SDP, RTSP_URL)
assert answer_sdp == ANSWER_SDP
assert get_diagnostics() == {
"discovery": {"attempt": 1, "web.success": 1, "webrtc.failure": 1},
"web": {
"add_stream.request": 1,
"add_stream.success": 1,
"heartbeat.request": 1,
"heartbeat.success": 1,
"list_streams.request": 1,
"list_streams.success": 1,
"webrtc.request": 1,
"webrtc.success": 1,
},
"webrtc": {"heartbeat.request": 1, "heartbeat.response_error": 1},
}
async def test_adaptive_both_succeed_web_client(
cli_cb: Callable[[], Awaitable[TestClient]],
app: web.Application,
request_handler: Callable[[aiohttp.web.Request], Awaitable[aiohttp.web.Response]],
) -> None:
"""Test adaptive client picks Web when both succeed."""
app.router.add_get("/streams", request_handler)
app.router.add_get("/static", request_handler)
app.router.add_post("/stream/{stream_id}/add", request_handler)
app.router.add_post(
"/stream/{stream_id}/channel/{channel_id}/webrtc", request_handler
)
cli = await cli_cb()
assert isinstance(cli.server, TestServer)
# Web heartbeat
cli.server.app["response"].append(
aiohttp.web.json_response(
{
"status": 1,
"payload": {
"demo1": STREAM_1,
},
}
)
)
# WebRTC heartbeat
cli.server.app["response"].append(
aiohttp.web.Response(status=200),
)
# List call
cli.server.app["response"].append(
aiohttp.web.json_response(
{
"status": 1,
"payload": {},
}
)
)
# Add stream
cli.server.app["response"].append(aiohttp.web.json_response(SUCCESS_RESPONSE))
# Web Offer
cli.server.app["response"].append(aiohttp.web.Response(body=ANSWER_PAYLOAD))
client = await get_adaptive_client(cast(ClientSession, cli))
answer_sdp = await client.offer(OFFER_SDP, RTSP_URL)
assert answer_sdp == ANSWER_SDP
async def test_adaptive_webrtc_client(
cli_cb: Callable[[], Awaitable[TestClient]],
app: web.Application,
request_handler: Callable[[aiohttp.web.Request], Awaitable[aiohttp.web.Response]],
) -> None:
"""Test List Streams calls."""
app.router.add_get("/streams", request_handler)
app.router.add_get("/static", request_handler)
app.router.add_post("/stream", request_handler)
cli = await cli_cb()
assert isinstance(cli.server, TestServer)
# Web heartbeat fails
cli.server.app["response"].append(aiohttp.web.Response(status=404))
# WebRTC heartbeat succeeds
cli.server.app["response"].append(
aiohttp.web.Response(status=200),
)
# WebRTC offer
cli.server.app["response"].append(
aiohttp.web.json_response({"sdp64": ANSWER_PAYLOAD})
)
client = await get_adaptive_client(cast(ClientSession, cli))
answer_sdp = await client.offer(OFFER_SDP, RTSP_URL)
assert answer_sdp == ANSWER_SDP
assert get_diagnostics() == {
"discovery": {"attempt": 1, "webrtc.success": 1, "web.failure": 1},
"web": {"heartbeat.request": 1, "heartbeat.response_error": 1},
"webrtc": {
"stream.request": 1,
"stream.success": 1,
"heartbeat.request": 1,
"heartbeat.success": 1,
},
}
async def test_adaptive_both_fail(
cli_cb: Callable[[], Awaitable[TestClient]],
app: web.Application,
) -> None:
"""Test successful response from RTSPtoWebRTC server."""
cli = await cli_cb()
assert isinstance(cli.server, TestServer)
with pytest.raises(ClientError):
await get_adaptive_client(cast(ClientSession, cli))
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