114 lines
3.0 KiB
Python
114 lines
3.0 KiB
Python
from os import environ
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from pathlib import Path
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from contextlib import contextmanager
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from tempfile import TemporaryDirectory
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from textwrap import dedent
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import pytest
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from sanic import Sanic
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@contextmanager
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def temp_path():
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""" a simple cross platform replacement for NamedTemporaryFile """
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with TemporaryDirectory() as td:
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yield Path(td, 'file')
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def test_load_from_object(app):
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class Config:
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not_for_config = 'should not be used'
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CONFIG_VALUE = 'should be used'
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app.config.from_object(Config)
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assert 'CONFIG_VALUE' in app.config
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assert app.config.CONFIG_VALUE == 'should be used'
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assert 'not_for_config' not in app.config
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def test_auto_load_env():
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environ["SANIC_TEST_ANSWER"] = "42"
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app = Sanic()
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assert app.config.TEST_ANSWER == 42
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del environ["SANIC_TEST_ANSWER"]
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def test_dont_load_env():
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environ["SANIC_TEST_ANSWER"] = "42"
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app = Sanic(load_env=False)
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assert getattr(app.config, 'TEST_ANSWER', None) is None
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del environ["SANIC_TEST_ANSWER"]
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def test_load_env_prefix():
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environ["MYAPP_TEST_ANSWER"] = "42"
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app = Sanic(load_env='MYAPP_')
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assert app.config.TEST_ANSWER == 42
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del environ["MYAPP_TEST_ANSWER"]
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def test_load_from_file(app):
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config = dedent("""
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VALUE = 'some value'
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condition = 1 == 1
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if condition:
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CONDITIONAL = 'should be set'
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""")
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with temp_path() as config_path:
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config_path.write_text(config)
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app.config.from_pyfile(str(config_path))
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assert 'VALUE' in app.config
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assert app.config.VALUE == 'some value'
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assert 'CONDITIONAL' in app.config
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assert app.config.CONDITIONAL == 'should be set'
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assert 'condition' not in app.config
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def test_load_from_missing_file(app):
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with pytest.raises(IOError):
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app.config.from_pyfile('non-existent file')
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def test_load_from_envvar(app):
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config = "VALUE = 'some value'"
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with temp_path() as config_path:
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config_path.write_text(config)
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environ['APP_CONFIG'] = str(config_path)
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app.config.from_envvar('APP_CONFIG')
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assert 'VALUE' in app.config
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assert app.config.VALUE == 'some value'
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def test_load_from_missing_envvar(app):
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with pytest.raises(RuntimeError) as e:
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app.config.from_envvar('non-existent variable')
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assert str(e.value) == ("The environment variable 'non-existent "
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"variable' is not set and thus configuration "
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"could not be loaded.")
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def test_overwrite_exisiting_config(app):
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app.config.DEFAULT = 1
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class Config:
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DEFAULT = 2
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app.config.from_object(Config)
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assert app.config.DEFAULT == 2
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def test_overwrite_exisiting_config_ignore_lowercase(app):
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app.config.default = 1
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class Config:
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default = 2
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app.config.from_object(Config)
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assert app.config.default == 1
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def test_missing_config(app):
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with pytest.raises(AttributeError) as e:
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app.config.NON_EXISTENT
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assert str(e.value) == ("Config has no 'NON_EXISTENT'")
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