Uploaded Test files
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# encoding: utf-8
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"""Tests for traitlets.config.configurable"""
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# Copyright (c) IPython Development Team.
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# Distributed under the terms of the Modified BSD License.
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import logging
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from unittest import TestCase
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from pytest import mark
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from traitlets.config.configurable import (
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Configurable,
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LoggingConfigurable,
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SingletonConfigurable,
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)
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from traitlets.traitlets import (
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Integer, Float, Unicode, List, Dict, Set,
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_deprecations_shown,
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)
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from traitlets.config.loader import Config
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from six import PY3
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from ...tests._warnings import expected_warnings
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class MyConfigurable(Configurable):
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a = Integer(1, help="The integer a.").tag(config=True)
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b = Float(1.0, help="The integer b.").tag(config=True)
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c = Unicode('no config')
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mc_help=u"""MyConfigurable options
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----------------------
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--MyConfigurable.a=<Integer>
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Default: 1
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The integer a.
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--MyConfigurable.b=<Float>
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Default: 1.0
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The integer b."""
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mc_help_inst=u"""MyConfigurable options
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----------------------
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--MyConfigurable.a=<Integer>
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Current: 5
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The integer a.
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--MyConfigurable.b=<Float>
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Current: 4.0
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The integer b."""
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# On Python 3, the Integer trait is a synonym for Int
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if PY3:
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mc_help = mc_help.replace(u"<Integer>", u"<Int>")
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mc_help_inst = mc_help_inst.replace(u"<Integer>", u"<Int>")
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class Foo(Configurable):
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a = Integer(0, help="The integer a.").tag(config=True)
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b = Unicode('nope').tag(config=True)
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class Bar(Foo):
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b = Unicode('gotit', help="The string b.").tag(config=False)
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c = Float(help="The string c.").tag(config=True)
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class TestConfigurable(TestCase):
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def test_default(self):
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c1 = Configurable()
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c2 = Configurable(config=c1.config)
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c3 = Configurable(config=c2.config)
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self.assertEqual(c1.config, c2.config)
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self.assertEqual(c2.config, c3.config)
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def test_custom(self):
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config = Config()
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config.foo = 'foo'
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config.bar = 'bar'
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c1 = Configurable(config=config)
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c2 = Configurable(config=c1.config)
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c3 = Configurable(config=c2.config)
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self.assertEqual(c1.config, config)
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self.assertEqual(c2.config, config)
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self.assertEqual(c3.config, config)
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# Test that copies are not made
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self.assertTrue(c1.config is config)
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self.assertTrue(c2.config is config)
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self.assertTrue(c3.config is config)
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self.assertTrue(c1.config is c2.config)
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self.assertTrue(c2.config is c3.config)
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def test_inheritance(self):
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config = Config()
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config.MyConfigurable.a = 2
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config.MyConfigurable.b = 2.0
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c1 = MyConfigurable(config=config)
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c2 = MyConfigurable(config=c1.config)
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self.assertEqual(c1.a, config.MyConfigurable.a)
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self.assertEqual(c1.b, config.MyConfigurable.b)
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self.assertEqual(c2.a, config.MyConfigurable.a)
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self.assertEqual(c2.b, config.MyConfigurable.b)
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def test_parent(self):
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config = Config()
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config.Foo.a = 10
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config.Foo.b = "wow"
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config.Bar.b = 'later'
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config.Bar.c = 100.0
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f = Foo(config=config)
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with expected_warnings(['`b` not recognized']):
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b = Bar(config=f.config)
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self.assertEqual(f.a, 10)
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self.assertEqual(f.b, 'wow')
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self.assertEqual(b.b, 'gotit')
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self.assertEqual(b.c, 100.0)
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def test_override1(self):
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config = Config()
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config.MyConfigurable.a = 2
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config.MyConfigurable.b = 2.0
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c = MyConfigurable(a=3, config=config)
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self.assertEqual(c.a, 3)
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self.assertEqual(c.b, config.MyConfigurable.b)
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self.assertEqual(c.c, 'no config')
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def test_override2(self):
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config = Config()
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config.Foo.a = 1
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config.Bar.b = 'or' # Up above b is config=False, so this won't do it.
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config.Bar.c = 10.0
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with expected_warnings(['`b` not recognized']):
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c = Bar(config=config)
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self.assertEqual(c.a, config.Foo.a)
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self.assertEqual(c.b, 'gotit')
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self.assertEqual(c.c, config.Bar.c)
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with expected_warnings(['`b` not recognized']):
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c = Bar(a=2, b='and', c=20.0, config=config)
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self.assertEqual(c.a, 2)
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self.assertEqual(c.b, 'and')
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self.assertEqual(c.c, 20.0)
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def test_help(self):
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self.assertEqual(MyConfigurable.class_get_help(), mc_help)
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def test_help_inst(self):
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inst = MyConfigurable(a=5, b=4)
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self.assertEqual(MyConfigurable.class_get_help(inst), mc_help_inst)
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class TestSingletonConfigurable(TestCase):
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def test_instance(self):
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class Foo(SingletonConfigurable): pass
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self.assertEqual(Foo.initialized(), False)
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foo = Foo.instance()
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self.assertEqual(Foo.initialized(), True)
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self.assertEqual(foo, Foo.instance())
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self.assertEqual(SingletonConfigurable._instance, None)
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def test_inheritance(self):
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class Bar(SingletonConfigurable): pass
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class Bam(Bar): pass
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self.assertEqual(Bar.initialized(), False)
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self.assertEqual(Bam.initialized(), False)
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bam = Bam.instance()
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bam == Bar.instance()
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self.assertEqual(Bar.initialized(), True)
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self.assertEqual(Bam.initialized(), True)
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self.assertEqual(bam, Bam._instance)
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self.assertEqual(bam, Bar._instance)
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self.assertEqual(SingletonConfigurable._instance, None)
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class MyParent(Configurable):
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pass
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class MyParent2(MyParent):
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pass
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class TestParentConfigurable(TestCase):
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def test_parent_config(self):
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cfg = Config({
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'MyParent' : {
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'MyConfigurable' : {
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'b' : 2.0,
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}
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}
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})
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parent = MyParent(config=cfg)
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myc = MyConfigurable(parent=parent)
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self.assertEqual(myc.b, parent.config.MyParent.MyConfigurable.b)
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def test_parent_inheritance(self):
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cfg = Config({
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'MyParent' : {
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'MyConfigurable' : {
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'b' : 2.0,
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}
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}
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})
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parent = MyParent2(config=cfg)
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myc = MyConfigurable(parent=parent)
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self.assertEqual(myc.b, parent.config.MyParent.MyConfigurable.b)
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def test_multi_parent(self):
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cfg = Config({
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'MyParent2' : {
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'MyParent' : {
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'MyConfigurable' : {
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'b' : 2.0,
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}
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},
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# this one shouldn't count
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'MyConfigurable' : {
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'b' : 3.0,
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},
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}
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})
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parent2 = MyParent2(config=cfg)
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parent = MyParent(parent=parent2)
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myc = MyConfigurable(parent=parent)
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self.assertEqual(myc.b, parent.config.MyParent2.MyParent.MyConfigurable.b)
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def test_parent_priority(self):
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cfg = Config({
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'MyConfigurable' : {
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'b' : 2.0,
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},
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'MyParent' : {
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'MyConfigurable' : {
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'b' : 3.0,
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}
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},
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'MyParent2' : {
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'MyConfigurable' : {
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'b' : 4.0,
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}
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}
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})
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parent = MyParent2(config=cfg)
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myc = MyConfigurable(parent=parent)
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self.assertEqual(myc.b, parent.config.MyParent2.MyConfigurable.b)
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def test_multi_parent_priority(self):
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cfg = Config({
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'MyConfigurable' : {
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'b' : 2.0,
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},
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'MyParent' : {
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'MyConfigurable' : {
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'b' : 3.0,
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}
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},
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'MyParent2' : {
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'MyConfigurable' : {
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'b' : 4.0,
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}
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},
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'MyParent2' : {
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'MyParent' : {
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'MyConfigurable' : {
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'b' : 5.0,
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}
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}
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}
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})
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parent2 = MyParent2(config=cfg)
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parent = MyParent2(parent=parent2)
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myc = MyConfigurable(parent=parent)
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self.assertEqual(myc.b, parent.config.MyParent2.MyParent.MyConfigurable.b)
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class Containers(Configurable):
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lis = List().tag(config=True)
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def _lis_default(self):
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return [-1]
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s = Set().tag(config=True)
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def _s_default(self):
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return {'a'}
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d = Dict().tag(config=True)
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def _d_default(self):
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return {'a' : 'b'}
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class TestConfigContainers(TestCase):
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def test_extend(self):
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c = Config()
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c.Containers.lis.extend(list(range(5)))
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obj = Containers(config=c)
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self.assertEqual(obj.lis, list(range(-1,5)))
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def test_insert(self):
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c = Config()
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c.Containers.lis.insert(0, 'a')
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c.Containers.lis.insert(1, 'b')
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obj = Containers(config=c)
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self.assertEqual(obj.lis, ['a', 'b', -1])
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def test_prepend(self):
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c = Config()
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c.Containers.lis.prepend([1,2])
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c.Containers.lis.prepend([2,3])
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obj = Containers(config=c)
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self.assertEqual(obj.lis, [2,3,1,2,-1])
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def test_prepend_extend(self):
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c = Config()
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c.Containers.lis.prepend([1,2])
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c.Containers.lis.extend([2,3])
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obj = Containers(config=c)
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self.assertEqual(obj.lis, [1,2,-1,2,3])
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def test_append_extend(self):
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c = Config()
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c.Containers.lis.append([1,2])
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c.Containers.lis.extend([2,3])
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obj = Containers(config=c)
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self.assertEqual(obj.lis, [-1,[1,2],2,3])
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def test_extend_append(self):
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c = Config()
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c.Containers.lis.extend([2,3])
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c.Containers.lis.append([1,2])
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obj = Containers(config=c)
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self.assertEqual(obj.lis, [-1,2,3,[1,2]])
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def test_insert_extend(self):
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c = Config()
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c.Containers.lis.insert(0, 1)
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c.Containers.lis.extend([2,3])
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obj = Containers(config=c)
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self.assertEqual(obj.lis, [1,-1,2,3])
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def test_set_update(self):
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c = Config()
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c.Containers.s.update({0,1,2})
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c.Containers.s.update({3})
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obj = Containers(config=c)
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self.assertEqual(obj.s, {'a', 0, 1, 2, 3})
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def test_dict_update(self):
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c = Config()
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c.Containers.d.update({'c' : 'd'})
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c.Containers.d.update({'e' : 'f'})
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obj = Containers(config=c)
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self.assertEqual(obj.d, {'a':'b', 'c':'d', 'e':'f'})
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def test_update_twice(self):
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c = Config()
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c.MyConfigurable.a = 5
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m = MyConfigurable(config=c)
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self.assertEqual(m.a, 5)
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c2 = Config()
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c2.MyConfigurable.a = 10
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m.update_config(c2)
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self.assertEqual(m.a, 10)
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c2.MyConfigurable.a = 15
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m.update_config(c2)
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self.assertEqual(m.a, 15)
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def test_update_self(self):
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"""update_config with same config object still triggers config_changed"""
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c = Config()
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c.MyConfigurable.a = 5
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m = MyConfigurable(config=c)
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self.assertEqual(m.a, 5)
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c.MyConfigurable.a = 10
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m.update_config(c)
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self.assertEqual(m.a, 10)
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def test_config_default(self):
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class SomeSingleton(SingletonConfigurable):
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pass
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class DefaultConfigurable(Configurable):
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a = Integer().tag(config=True)
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def _config_default(self):
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if SomeSingleton.initialized():
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return SomeSingleton.instance().config
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return Config()
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c = Config()
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c.DefaultConfigurable.a = 5
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d1 = DefaultConfigurable()
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self.assertEqual(d1.a, 0)
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single = SomeSingleton.instance(config=c)
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d2 = DefaultConfigurable()
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self.assertIs(d2.config, single.config)
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self.assertEqual(d2.a, 5)
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def test_config_default_deprecated(self):
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"""Make sure configurables work even with the deprecations in traitlets"""
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class SomeSingleton(SingletonConfigurable):
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pass
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# reset deprecation limiter
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_deprecations_shown.clear()
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with expected_warnings([]):
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class DefaultConfigurable(Configurable):
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a = Integer(config=True)
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def _config_default(self):
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if SomeSingleton.initialized():
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return SomeSingleton.instance().config
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return Config()
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c = Config()
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c.DefaultConfigurable.a = 5
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d1 = DefaultConfigurable()
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self.assertEqual(d1.a, 0)
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single = SomeSingleton.instance(config=c)
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d2 = DefaultConfigurable()
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self.assertIs(d2.config, single.config)
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self.assertEqual(d2.a, 5)
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class TestLogger(TestCase):
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class A(LoggingConfigurable):
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foo = Integer(config=True)
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bar = Integer(config=True)
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baz = Integer(config=True)
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@mark.skipif(not hasattr(TestCase, 'assertLogs'), reason='requires TestCase.assertLogs')
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def test_warn_match(self):
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logger = logging.getLogger('test_warn_match')
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cfg = Config({'A': {'bat': 5}})
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with self.assertLogs(logger, logging.WARNING) as captured:
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a = TestLogger.A(config=cfg, log=logger)
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output = '\n'.join(captured.output)
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self.assertIn('Did you mean one of: `bar, baz`?', output)
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self.assertIn('Config option `bat` not recognized by `A`.', output)
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cfg = Config({'A': {'fool': 5}})
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with self.assertLogs(logger, logging.WARNING) as captured:
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a = TestLogger.A(config=cfg, log=logger)
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output = '\n'.join(captured.output)
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self.assertIn('Config option `fool` not recognized by `A`.', output)
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self.assertIn('Did you mean `foo`?', output)
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cfg = Config({'A': {'totally_wrong': 5}})
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with self.assertLogs(logger, logging.WARNING) as captured:
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a = TestLogger.A(config=cfg, log=logger)
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output = '\n'.join(captured.output)
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self.assertIn('Config option `totally_wrong` not recognized by `A`.', output)
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self.assertNotIn('Did you mean', output)
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