import pytest
from contextlib import contextmanager
from pyroSAR._dev_config import ExamineExe
from pyroSAR.snap.auxil import ExamineSnap

@contextmanager
def not_raises(ExpectedException):
    try:
        yield

    except ExpectedException:
        raise AssertionError(
            "Did raise exception {0} when it should not!".format(
                repr(ExpectedException)
            )
        )

    except Exception:
        raise AssertionError(
            "An unexpected exception {0} raised.".format(repr(Exception))
        )

class TestExemineExe:
    def test_exception(self):
        with pytest.warns(UserWarning):
            ExamineExe.examine('some_exe_file.exe')

    def test_warn_snap(self):
        with pytest.warns(UserWarning):
            ExamineExe.examine('snap')
    # def test_not_exception(self):
    #     SNAP_EXECUTABLE = ['snap64.exe', 'snap32.exe', 'snap.exe', 'snap']
    #     with not_raises(ValueError):
    #         ExamineExe.examine(SNAP_EXECUTABLE)

class TestExamineSnap:
    def test_exception(self):
        with pytest.warns(UserWarning):
            ExamineExe.examine('some_exe_file.exe')

    # def test_not_exception(self):
    #     with not_raises(AssertionError):
    #         test_snap_exe = ExamineSnap()
from contextlib import contextmanager

import pytest

from pyroSAR._dev_config import ExamineExe
from pyroSAR.snap.auxil import ExamineSnap


@contextmanager
def not_raises(ExpectedException):
    try:
        yield

    except ExpectedException:
        raise AssertionError(
            "Did raise exception {0} when it should not!".format(
                repr(ExpectedException)
            )
        )

    except Exception:
        raise AssertionError(
            "An unexpected exception {0} raised.".format(repr(Exception))
        )


class TestExemineExe:
    def test_exception(self):
        with pytest.warns(UserWarning):
            ExamineExe.examine('some_exe_file.exe')

    def test_not_exception(self):
        SNAP_EXECUTABLE = ['snap64.exe', 'snap32.exe', 'snap.exe', 'snap']
        with pytest.warns(None) as record:
            ExamineExe.examine(SNAP_EXECUTABLE)
        assert len(record) == 1


class TestExamineSnap:
    def test_exception(self):
        with pytest.warns(UserWarning):
            ExamineSnap(snap_executable='some_exe_file.exe')

    def test_not_exception(self):
        with pytest.warns(None) as record:
            ExamineSnap()
        assert len(record) == 0

Add unit test to determine if the classes ExamineExe and ExamineSnap will work properly.