def test_hostname_required(monkeypatch, capfd):
"""check that the hostname of the purifier is a required option"""
monkeypatch.setattr(sys, "argv", ["app-name"])
with pytest.raises(SystemExit) as ex_info:
main()
assert ex_info.value.code != 0
assert "Missing option '--host'" in capfd.readouterr().err
def test_unknown_protocol(monkeypatch, capfd):
"""check that failure is reporter if an invalid protocol is provided"""
monkeypatch.setattr(
sys, "argv", ["app-name", "--host", "192.168.1.123", "--protocol", "foobar"]
)
with pytest.raises(SystemExit) as ex_info:
main()
assert ex_info.value.code != 0
assert "invalid choice: foobar" in capfd.readouterr().err
def test_default_parameters(mock_app, monkeypatch):
"""
check that the exporter Flask app is created with the given hostname and default
parameters
"""
monkeypatch.setattr(sys, "argv", ["app-name", "--host", "192.168.1.123"])
with pytest.raises(SystemExit) as ex_info:
main()
assert ex_info.value.code == 0
app.create_app.assert_called_once_with(host="192.168.1.123", protocol="http")
mock_app.run.assert_called_once_with(host="0.0.0.0", port=9896)
def test_main(mock_app, monkeypatch):
"""check that the exporter Flask app is created with all the given parameters"""
monkeypatch.setattr(
sys,
"argv",
[
"app-name",
"--host",
"192.168.1.123",
"--protocol",
"coap",
"--listen-address",
"1.2.3.4",
"--listen-port",
"12345",
],
)
with pytest.raises(SystemExit) as ex_info:
main()
assert ex_info.value.code == 0
app.create_app.assert_called_once_with(host="192.168.1.123", protocol="coap")
mock_app.run.assert_called_once_with(host="1.2.3.4", port=12345)
def test_help(monkeypatch, capfd):
monkeypatch.setattr(sys, "argv", ["app-name", "--help"])
with pytest.raises(SystemExit) as ex_info:
main()
assert ex_info.value.code == 0
assert "Usage: app-name" in capfd.readouterr().out