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How to use test_unknown_environment_with_envlist method in tox

Best Python code snippet using tox_python

test_z_cmdline.py

...300    initproj("env123-0.7", filedefs={"tox.ini": ""})301    result = cmd("-e", "qpwoei")302    result.assert_fail()303    assert result.out == "ERROR: unknown environment 'qpwoei'\n"304def test_unknown_environment_with_envlist(cmd, initproj):305    initproj(306        "pkg123",307        filedefs={308            "tox.ini": """309            [tox]310            envlist = py{36,37}-django{20,21}311        """,312        },313    )314    result = cmd("-e", "py36-djagno21")315    result.assert_fail()316    assert result.out == "ERROR: unknown environment 'py36-djagno21'\n"317def test_minimal_setup_py_empty(cmd, initproj):318    initproj(...

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