test_config_from_envvar_missing() — flask Function Reference

Architecture documentation for the test_config_from_envvar_missing() function in test_config.py from the flask codebase.

Function python ApplicationCore AppLifeCycle

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ApplicationCore→ AppLifeCycle→ test_config_from_envvar_missing() — flask Function Reference

Dependency Diagram

graph TD
  5600f560_9825_9bf0_d301_f9f6a8046a6e["test_config_from_envvar_missing()"]
  af09ffc0_0dff_d9d9_7274_4611c3d0d0e6["test_config.py"]
  5600f560_9825_9bf0_d301_f9f6a8046a6e -->|defined in| af09ffc0_0dff_d9d9_7274_4611c3d0d0e6
  style 5600f560_9825_9bf0_d301_f9f6a8046a6e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

tests/test_config.py lines 161–171

def test_config_from_envvar_missing(monkeypatch):
    monkeypatch.setattr("os.environ", {"FOO_SETTINGS": "missing.cfg"})
    app = flask.Flask(__name__)
    with pytest.raises(IOError) as e:
        app.config.from_envvar("FOO_SETTINGS")
    msg = str(e.value)
    assert msg.startswith(
        "[Errno 2] Unable to load configuration file (No such file or directory):"
    )
    assert msg.endswith("missing.cfg'")
    assert not app.config.from_envvar("FOO_SETTINGS", silent=True)