chip__Archive__Hermes_V2.2___LPF_select___b41e653b4d/testbench/tb.py

AUTO_BUILD_ARGS = []

#!/usr/bin/env python3
"""cocotb testbench for LPF_select module."""

import cocotb
from cocotb.clock import Clock
from cocotb.triggers import RisingEdge, Timer
from pathlib import Path
import sys

@cocotb.test()
async def test_lpf_select_basic_functionality(dut):
    """Test basic LPF selection functionality based on frequency thresholds."""
    
    # Create and start a clock
    clock_period = 10  # ns
    cocotb.start_soon(Clock(dut.clock, clock_period, unit="ns").start())
    
    # Initial reset-like condition - wait for some cycles
    await Timer(clock_period * 2, unit="ns")
    
    # Test cases: (frequency, expected LPF)
    # Format: (frequency in Hz, expected 7-bit LPF value)


if __name__ == "__main__":
    from pathlib import Path
    from cocotb_tools.runner import get_runner

    project_root = Path(__file__).resolve().parents[1]
    sources = [
        project_root / "reference" / "top.v"
    ]
    runner = get_runner("icarus")
    runner.build(
        sources=[str(path) for path in sources],
        hdl_toplevel='LPF_select',
        build_args=AUTO_BUILD_ARGS,
        always=True,
    )
    runner.test(
        hdl_toplevel='LPF_select',
        test_module="tb",
        waves=False,
    )