How to use test_install_command_setting method in tox

Best Python code snippet using tox_python

test_config.py

Source:test_config.py

...495        assert len(config.envconfigs) == 1496        envconfig = config.envconfigs['python']497        assert envconfig.changedir.basename == "abc"498        assert envconfig.changedir == config.setupdir.join("abc")499    def test_install_command_setting(self, newconfig):500        config = newconfig("""501            [testenv]502            install_command=some_install {packages}503        """)504        envconfig = config.envconfigs['python']505        assert envconfig.install_command == [506            'some_install', '{packages}']507    def test_install_command_must_contain_packages(self, newconfig):508        py.test.raises(tox.exception.ConfigError, newconfig, """509            [testenv]510            install_command=pip install511        """)512    def test_install_command_substitutions(self, newconfig):513        config = newconfig("""...

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