Test that URLs already in the queue are rejected.

Test that trackers with already tracked hosts are rejected during processing.

Test that URLs already being tracked are rejected.

Test that trackers with duplicate IPs are rejected during processing.

Test that trackers with interval > 10800 seconds are rejected.

Test that trackers with interval < 300 seconds are rejected.

Test that URLs with IPv4 addresses as hostnames are rejected.

Test that URLs with IPv6 addresses as hostnames are rejected.

Test that trackers with missing interval are rejected.

Test that trackers with IPs already in the list are rejected.

Should remove IPv4-only trackers when requesting IPv6.

Should remove IPv6-only trackers when requesting IPv4.

Should replace original path with /announce.

Should return the same list object passed in.

Should return the same response object passed in.

Test that item order is preserved through save/load cycle.

Test that submission result data survives save/load cycle.

Test that tracker data survives save/load cycle.

Verify empty lists are properly serialized and deserialized.

Verify large historic deques are properly handled.

Verify multiple mixed IP addresses are properly handled.

Verify strings with special characters are properly handled.

Verify Unicode characters are properly handled.

Test saving and loading an empty history buffer.

Test that output is valid parseable JSON.

Test that saving overwrites existing file content.

Test saving a deque with dictionary data.

Test saving a deque with HistoryData.

Test saving a deque with multiple HistoryData items.

Test saving a deque with nested structures (info as list).

Test saving an empty deque writes empty JSON array.

Test that history is saved to disk after processing each tracker.

Test SCRAPING_HEADERS configuration.

Should set mimetype to text/plain.

Should handle single column rows.

Should format single tracker with double newline.

Should return '1 day' for 1 day ago.

Should return '1 hour' for 1 hour ago.

Should return '1 minute' for 1 minute ago.

Should return '1 month' for approximately 1 month ago.

Should return '1 second' for 1 second ago.

Should return '1 year' for 1 year ago.

API should handle tracker URLs with special characters.

Should handle explicit port 80 for HTTP.

Should handle explicit port 443 for HTTPS.

String without colon should raise error.

Should preserve subdomain in host.

Verify submitted_data has maxlen of 600.

Test submitted_data removes oldest when full.

Test submitted_history_file constant value.

Verify submitted_queue has maxsize of 10000.

Test submitted_queue rejects inserts when full.

Test successful insertion of a new tracker.

Should use HTTP scheme when tls=False regardless of input.

Should use HTTPS scheme when tls=True regardless of input.

Test that tracker is cleared when IP resolution fails.

Test tracker is marked for deletion when BEP34 denies connection.

Verify tracker ends up in database after full submission processing.

Decode a tracker failure response.

Insert working tracker, mock scraper to raise RuntimeError, verify status changes to 0 and last_downtime updated.

Verify that tracker going down is properly persisted to database.

Test that tracker is marked for deletion if last_uptime exceeds max_downtime.

Decode a complete realistic tracker response.

Decode a tracker response with both IPv4 and IPv6 peers.

Decode a tracker response with minimum interval.

Decode a tracker response with binary peer data.

Decode a tracker response with tracker ID.

Test tracker URL is updated based on BEP34 preferences.

Test tracker URL without explicit port.

Decode a tracker response with warning message.

Should filter out trackers with empty IP lists.

Test tracker creation with IP address as hostname.

Trackers with falsy IP lists should be filtered out.

Dict without end marker should raise EOFError. The decoder raises EOFError when it cannot read more data.

Integer without end marker should raise RuntimeError.

List without end marker should raise EOFError. The decoder raises EOFError when it cannot read more data.

Truncated string should raise RuntimeError.

Test that announce request has correct structure and length.

Test announce request with various hash values.

Test that connection request has correct structure and length.

Test that transaction ID is within expected range.

Test that non-announce action raises RuntimeError.

Test parsing announce response with multiple peers.

Test parsing announce response with no peers.

Test successful parsing of IPv4 announce response.

Test successful parsing of IPv6 announce response.

Test that mismatched transaction ID raises RuntimeError.

Test that short announce response raises RuntimeError.

Test that error action (0x3) raises RuntimeError.

Test successful parsing of connection response.

Test that mismatched transaction ID raises RuntimeError.

Test that short response raises RuntimeError.

Test UDP_PORT constant.

Should ignore unknown protocols.

Test that update_ipapi_data handles invalid API response.

Test that update_ipapi_data fetches data for multiple IPs.

Test that update_ipapi_data handles None IPs.

Test that update_ipapi_data fetches data for single IP.

Test that update_ips removes duplicate IPs.

Test that update_ips raises RuntimeError on DNS failure.