Fixtures

pytest-libiio provides a set of fixtures that can be used to find and utilize libiio contexts.

Accessing contexts

Pass a list of context descriptions of all found during scan

import pytest
import iio


def test_libiio_device(context_desc):
    hardware = ["pluto", "adrv9361", "fmcomms2"]
    for ctx_desc in context_desc:
        if ctx_desc["hw"] in hardware:
            ctx = iio.Context(ctx_desc["uri"])
    if not ctx:
        pytest.skip("No required hardware found")

Require certain hardware through marks

import pytest
import iio


@pytest.mark.iio_hardware("adrv9361")
def test_libiio_device(context_desc):
    for ctx_desc in context_desc:
        ctx = iio.Context(ctx_desc["uri"])
        ...

Pass the first URI of the first matching context found with the desired hardware

import pytest
import iio


@pytest.mark.iio_hardware(["adrv9361", "pluto"])
def test_libiio_device(iio_uri):
    ctx = iio.Context(iio_uri)
    ...

Disable during emulation

import pytest
import iio


@pytest.mark.iio_hardware("pluto", True)
def test_libiio_device(iio_uri):
    ctx = iio.Context(iio_uri)
    ...