gac bernina
59 lines
1.7 KiB
Python
59 lines
1.7 KiB
Python
import pytest
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from eco.utilities.config import Component, Namespace
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class BadThing:
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def __init__(self, value, name=None):
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raise ValueError("boom")
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class DependencyThing:
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def __init__(self, name=None):
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self.name = name
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class NeedsDependency:
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def __init__(self, dependency, name=None):
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self.dependency = dependency
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def test_lazy_init_failure_includes_manual_instantiation_string():
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ns = Namespace(name="test")
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ns.append_obj(BadThing, 1, lazy=True, name="bad")
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with pytest.raises(ValueError) as exc_info:
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ns.init_name("bad", raise_errors=True)
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assert exc_info.value.args[0] == "boom"
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manual = exc_info.value.args[-1]
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assert manual.startswith("Manual instantiation attempt:")
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assert "from test_config_lazy_init import BadThing" in manual
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assert manual == (
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"Manual instantiation attempt: "
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"from test_config_lazy_init import BadThing; "
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"BadThing(1, name='bad')"
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)
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assert ns.failed_items_excpetion["bad"].args[-1] == manual
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def test_append_obj_from_config_resolves_component_dependencies_eagerly_for_non_lazy_nodes():
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ns = Namespace(name="test")
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ns.append_obj(DependencyThing, lazy=True, name="dependency")
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ns.append_obj_from_config(
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{
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"type": f"{__name__}:NeedsDependency",
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"name": "needs_dependency",
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"args": [Component("dependency")],
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"kwargs": {},
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"lazy": False,
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}
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)
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root = ns.initialized_items["needs_dependency"]
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assert isinstance(root.dependency, DependencyThing)
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assert root.dependency is not ns.get_obj("dependency")
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assert root.dependency.name == "dependency"
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