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P2-R1: ALSA + JACK2 low-latency config (scripts, quirks, tuning) P2-R2: Carla integration (build scripts, 8ch rack config, NAM LV2 support) P2-R3: Plugin manager, categories, blacklist, NAM model support P3-R1: Mixer DSP engine (channel strip, routing matrix, bus mgr, automation) P4-R1: MIDI engine (learn mode, clock sync, HID discovery, mapping store) P4-R2: Network API (OSC server, FastAPI REST, WebSocket, auth, rate limiter) P5-R1: Touchscreen UI evaluation + main entry point docs: Audio stack, Carla integration, MIDI support, UI evaluation tests: Full test suite (292 passing)
143 lines
4.4 KiB
Python
143 lines
4.4 KiB
Python
"""Tests for token bucket rate limiter."""
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import asyncio
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import time
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import pytest
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from fastapi import FastAPI, Depends, Request
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from fastapi.testclient import TestClient
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from src.network.rate_limiter import RateLimiter, TokenBucket, rate_limit
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from src.network.auth import API_KEY_HEADER
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class TestTokenBucket:
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"""Tests for TokenBucket."""
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def test_initial_tokens(self):
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bucket = TokenBucket(rate=10.0, capacity=20)
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assert bucket.available == 20.0
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def test_consume_reduces_tokens(self):
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bucket = TokenBucket(rate=10.0, capacity=20)
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assert bucket.consume(1)
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# available may refill a tiny amount based on timing
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assert bucket.available == pytest.approx(19.0, abs=0.1)
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def test_consume_multiple(self):
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bucket = TokenBucket(rate=10.0, capacity=20)
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assert bucket.consume(5)
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assert bucket.available == pytest.approx(15.0, abs=0.1)
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def test_cannot_consume_more_than_available(self):
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bucket = TokenBucket(rate=10.0, capacity=5)
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# Consume all
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for _ in range(5):
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assert bucket.consume(1)
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# No more
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assert not bucket.consume(1)
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def test_refill_over_time(self):
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bucket = TokenBucket(rate=100.0, capacity=100)
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# Drain all tokens
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for _ in range(100):
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assert bucket.consume(1)
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assert bucket.available < 1.0
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# Wait for refill
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time.sleep(0.05) # 50ms → ~5 tokens at 100/s
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assert bucket.available >= 4.0 # allow slight timing variance
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def test_capacity_cap(self):
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bucket = TokenBucket(rate=1000.0, capacity=10)
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time.sleep(0.1) # 100ms → 100 tokens, but capped at 10
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assert bucket.available <= 10.0 + 0.01 # small epsilon
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def test_zero_rate(self):
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bucket = TokenBucket(rate=0.0, capacity=10)
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for _ in range(10):
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assert bucket.consume(1)
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# No refill
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assert not bucket.consume(1)
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class TestRateLimiter:
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"""Tests for RateLimiter."""
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@pytest.fixture
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def limiter(self):
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return RateLimiter(rate=100.0, capacity=200, eviction_timeout=0.5)
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@pytest.mark.asyncio
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async def test_check_rest_allows_first_request(self, limiter):
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"""First request from an IP should be allowed."""
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# We can't easily test this without a FastAPI request,
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# but we can test the bucket directly.
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# The check_rest method needs a Request object, so we test
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# via FastAPI integration below.
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pass
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class TestRateLimitIntegration:
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"""Integration tests for rate limiting with FastAPI."""
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@pytest.fixture
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def app(self):
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limiter = RateLimiter(rate=50.0, capacity=100)
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app = FastAPI()
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@app.get("/limited")
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async def limited(_: None = Depends(rate_limit(limiter))):
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return {"ok": True}
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@app.get("/unlimited")
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async def unlimited():
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return {"ok": True}
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return app
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@pytest.fixture
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def client(self, app):
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return TestClient(app)
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def test_unlimited_endpoint(self, client):
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resp = client.get("/unlimited")
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assert resp.status_code == 200
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def test_limited_endpoint_allows_requests(self, client):
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"""Rate-limited endpoint should allow normal traffic."""
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for _ in range(10):
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resp = client.get("/limited")
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assert resp.status_code == 200
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def test_rate_limit_headers_on_client(self, client):
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"""Basic sanity — requests should work."""
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resp = client.get("/limited")
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assert resp.status_code == 200
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assert resp.json() == {"ok": True}
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def test_multiple_requests_within_limit(self, client):
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"""Multiple requests within the rate limit should all succeed."""
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for i in range(50):
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resp = client.get("/limited")
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assert resp.status_code == 200, f"Request {i} failed"
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class TestRateLimiterStats:
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"""Tests for rate limiter statistics."""
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def test_initial_stats(self):
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limiter = RateLimiter(rate=50.0, capacity=100)
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assert limiter.active_connections == 0
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stats = limiter.stats
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assert stats["active_clients"] == 0
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assert stats["rest_rate"] == 50.0
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assert stats["rest_capacity"] == 100
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def test_ws_rates(self):
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limiter = RateLimiter(ws_rate=500.0, ws_capacity=1000)
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stats = limiter.stats
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assert stats["ws_rate"] == 500.0
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assert stats["ws_capacity"] == 1000
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