"""
Tests for the parse_grafana_time function in the Grafana-Loki MCP Server.
"""
import os
import sys
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
from grafana_loki_mcp.server import parse_grafana_time
def test_parse_grafana_time_empty() -> None:
"""Test parse_grafana_time with empty string input."""
result = parse_grafana_time("")
# Should return current time as Unix nanoseconds string
assert result.isdigit()
assert len(result) >= 18 # Unix nanoseconds should be 19 digits
def test_parse_grafana_time_now() -> None:
"""Test parse_grafana_time with 'now' input."""
result = parse_grafana_time("now")
# Should return current time as Unix nanoseconds string
assert result.isdigit()
assert len(result) >= 18 # Unix nanoseconds should be 19 digits
def test_parse_grafana_time_relative() -> None:
"""Test parse_grafana_time with relative time formats."""
formats = ["now-1s", "now-5m", "now-2h", "now-1d", "now-1w", "now-1M", "now-1y"]
for fmt in formats:
result = parse_grafana_time(fmt)
# Should return Unix nanoseconds string
assert result.isdigit()
assert len(result) >= 18 # Unix nanoseconds should be 19 digits
def test_parse_grafana_time_unix_timestamp() -> None:
"""Test parse_grafana_time with Unix timestamp."""
result = parse_grafana_time("1609459200")
# Should convert to nanoseconds
assert result == "1609459200000000000"
def test_parse_grafana_time_iso_format() -> None:
"""Test parse_grafana_time with ISO format."""
result = parse_grafana_time("2021-01-01T00:00:00")
# Should return Unix nanoseconds string
assert result.isdigit()
# For 2021-01-01T00:00:00 UTC, this should be 1609459200000000000
assert result == "1609459200000000000"
def test_parse_grafana_time_rfc3339() -> None:
"""Test parse_grafana_time with RFC3339 format."""
result = parse_grafana_time("2021-01-01T00:00:00Z")
# Should return Unix nanoseconds string
assert result.isdigit()
# For 2021-01-01T00:00:00Z UTC, this should be 1609459200000000000
assert result == "1609459200000000000"
def test_parse_grafana_time_invalid() -> None:
"""Test parse_grafana_time with invalid format."""
result = parse_grafana_time("invalid-format")
# Should return current time as Unix nanoseconds string
assert result.isdigit()
assert len(result) >= 18 # Unix nanoseconds should be 19 digits
