conftest.py

import pytest

# Command-line options :
def pytest_addoption(parser):
    parser.addoption('--dump_waveforms', action='store_true', help='Dump waveforms from test.')
    parser.addoption('--simulator_name', default=None, type=str, help='Name of the simulator to use.')
    parser.addoption('--board_name', default='ZC702', type=str, help='Name of the FPGA board.')
    parser.addoption('--ser_port', default='/dev/ttyUSB2', type=str, help='USB serial path.')
    parser.addoption('--ffe_length', default=4, type=int, help='Number of FFE coefficients per channel.')
    parser.addoption('--emu_clk_freq', default=5.0e6, type=float, help='Frequency of emulator clock (Hz)')
    parser.addoption('--prbs_test_dur', default=10.0, type=float, help='Length of time of the PRBS emulation test.')
    parser.addoption('--fpga_sim_ctrl', default='UART_ZYNQ', type=str, help='Emulation control style (UART or VIO)')
    parser.addoption('--jitter_rms', default=0, type=float, help='RMS sampling jitter (seconds)')
    parser.addoption('--noise_rms', default=0, type=float, help='RMS ADC noise (Volts)')
    parser.addoption('--flatten_hierarchy', default='rebuilt', type=str, help='Vivado synthesis option.')
    parser.addoption('--chan_tau', default=25e-12, type=float, help='Time constant of channel used in emulation (seconds).')
    parser.addoption('--chan_delay', default=31.25e-12, type=float, help='Delay of channel used in emulation (seconds).')

# Fixtures :
@pytest.fixture
def dump_waveforms(request):
    return request.config.getoption('--dump_waveforms')

@pytest.fixture
def simulator_name(request):
    return request.config.getoption('--simulator_name')

@pytest.fixture
def board_name(request):
    return request.config.getoption('--board_name')

@pytest.fixture
def ser_port(request):
    return request.config.getoption('--ser_port')

@pytest.fixture
def ffe_length(request):
    return request.config.getoption('--ffe_length')

@pytest.fixture
def emu_clk_freq(request):
    return request.config.getoption('--emu_clk_freq')

@pytest.fixture
def prbs_test_dur(request):
    return request.config.getoption('--prbs_test_dur')

@pytest.fixture
def fpga_sim_ctrl(request):
    return request.config.getoption('--fpga_sim_ctrl')

@pytest.fixture
def jitter_rms(request):
    return request.config.getoption('--jitter_rms')

@pytest.fixture
def noise_rms(request):
    return request.config.getoption('--noise_rms')

@pytest.fixture
def flatten_hierarchy(request):
    return request.config.getoption('--flatten_hierarchy')

@pytest.fixture
def chan_tau(request):
    return request.config.getoption('--chan_tau')

@pytest.fixture
def chan_delay(request):
    return request.config.getoption('--chan_delay')