start project

tests/test_background_processing.py

@@ -0,0 +1,52 @@
+"""Regression coverage for the no-cron simplification (Chapter 12): a
+real upload through the HTTP endpoint should reach status "done" on its
+own, via the automatic background thread, without any `flask
+process-logs` invocation — cron/CLI is optional, not required.
+"""
+from __future__ import annotations
+
+import io
+import time
+
+from app.models.bot_hit import BotHit
+from app.models.log_entry import LogEntry
+from app.models.log_file import LogFile
+
+SAMPLE_LOG = (
+    b'203.0.113.10 - - [15/Jul/2026:10:00:00 -0700] "GET /index.html HTTP/1.1" 200 512 '
+    b'"https://example.com/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome/120.0"\n'
+    b'203.0.113.11 - - [15/Jul/2026:10:00:05 -0700] "GET /about HTTP/1.1" 200 300 '
+    b'"-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"\n'
+)
+
+
+def test_upload_processes_automatically_without_cron(logged_in_client):
+    resp = logged_in_client.post(
+        "/uploads",
+        data={
+            "logfile": (io.BytesIO(SAMPLE_LOG), "sample.log"),
+            "server_type": "apache",
+            "format_string": "",
+        },
+        content_type="multipart/form-data",
+    )
+    assert resp.status_code == 200
+
+    log_file = LogFile.query.order_by(LogFile.id.desc()).first()
+    assert log_file is not None
+
+    # No `flask process-logs` call anywhere in this test — only the
+    # background thread triggered by the upload itself should advance it.
+    deadline = time.time() + 5
+    while time.time() < deadline:
+        from app.extensions import db
+        db.session.refresh(log_file)
+        if log_file.status in ("done", "error"):
+            break
+        time.sleep(0.1)
+
+    assert log_file.status == "done", f"expected done, got {log_file.status}: {log_file.error_message}"
+    assert log_file.total_lines == 2
+    assert log_file.processed_lines == 2
+    assert LogEntry.query.filter_by(log_file_id=log_file.id).count() == 2
+    assert BotHit.query.filter_by(log_file_id=log_file.id).count() == 1