Files
telecom-cdr-pipeline/tests/unit/test_worker_observability.py

110 lines
3.9 KiB
Python

from datetime import datetime, timezone
from ipaddress import IPv4Address
from uuid import uuid4
from fastapi.testclient import TestClient
from prometheus_client import CONTENT_TYPE_LATEST
from core.domain.models import NormalizedCDR
from core.worker.observability.metrics import WorkerMetrics
from core.worker.observability.server import create_worker_observability_app
from core.worker.observability.stats import WorkerRuntimeStats
def create_sample_cdr() -> NormalizedCDR:
now = datetime.now(timezone.utc)
return NormalizedCDR(
cdr_id=uuid4(),
raw_id="raw-obs-1",
msisdn="+19875551234",
imsi="310410998877665",
service_type="4G_DATA",
radio_access_type="LTE_4G",
cell_id="4021_8812",
bytes_uploaded=100,
bytes_downloaded=200,
total_bytes=300,
duration_seconds=300,
session_start_time=now,
session_end_time=now,
source_ip=IPv4Address("10.240.12.1"),
)
def test_worker_observability_health_endpoint() -> None:
metrics = WorkerMetrics()
stats = WorkerRuntimeStats()
app = create_worker_observability_app(metrics=metrics, stats=stats)
client = TestClient(app)
response = client.get("/health")
assert response.status_code == 200
assert response.json() == {"status": "ok"}
def test_worker_observability_metrics_endpoint() -> None:
metrics = WorkerMetrics()
stats = WorkerRuntimeStats()
app = create_worker_observability_app(metrics=metrics, stats=stats)
client = TestClient(app)
response = client.get("/metrics")
assert response.status_code == 200
assert CONTENT_TYPE_LATEST in response.headers["content-type"]
assert "cdr_processed_total" in response.text
assert "cdr_dlq_total" in response.text
def test_worker_observability_internal_stats_endpoint() -> None:
metrics = WorkerMetrics()
stats = WorkerRuntimeStats()
app = create_worker_observability_app(metrics=metrics, stats=stats)
client = TestClient(app)
response = client.get("/internal/stats")
assert response.status_code == 200
body = response.json()
assert "pipeline" in body
assert "breakdown" in body
assert body["pipeline"]["total_processed"] == 0
assert body["pipeline"]["total_dlq"] == 0
def test_shared_instance_behavior_between_processing_and_observability() -> None:
# Processing and observability must share the identical metrics and stats instances
metrics = WorkerMetrics()
stats = WorkerRuntimeStats()
app = create_worker_observability_app(metrics=metrics, stats=stats)
client = TestClient(app)
# Simulate worker processing activity updating the instances
cdr = create_sample_cdr()
metrics.record_processed(cdr)
stats.record_processed(cdr)
metrics.record_dlq("invalid_rat_value")
stats.record_dlq("invalid_rat_value")
metrics.set_buffer_size(5)
stats.set_buffer_size(5)
# Verify that the observability server sees the exact same updates
stats_response = client.get("/internal/stats")
assert stats_response.status_code == 200
stats_body = stats_response.json()
assert stats_body["pipeline"]["total_processed"] == 1
assert stats_body["pipeline"]["total_dlq"] == 1
assert stats_body["pipeline"]["in_flight_buffer"] == 5
assert stats_body["breakdown"]["by_service_type"]["4G_DATA"] == 1
assert stats_body["breakdown"]["by_radio_access_type"]["LTE_4G"] == 1
assert stats_body["breakdown"]["dlq_by_reason"]["invalid_rat_value"] == 1
# Verify metrics endpoint output contains the recorded metrics
metrics_response = client.get("/metrics")
assert metrics_response.status_code == 200
assert 'cdr_processed_total{radio_access_type="LTE_4G",service_type="4G_DATA"} 1.0' in metrics_response.text
assert 'cdr_dlq_total{reason="invalid_rat_value"} 1.0' in metrics_response.text
assert 'cdr_in_flight_buffer_size 5.0' in metrics_response.text