Maximilian Bosch
2a11984a58
While it doesn't make sense to have `foo..bar`, the attribute-path `foo."".bar` is valid and shouldn't throw. Change-Id: Ifcddaad6233c6ba8f17cb5c953c2101d276dfeb6
63 lines
2.1 KiB
Python
63 lines
2.1 KiB
Python
from testlib.fixtures.nix import Nix
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import pytest
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from typing import NamedTuple
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from textwrap import dedent
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class ShouldError(NamedTuple):
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expr: str
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attr: str
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error: str
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ERR_CASES: list[ShouldError] = [
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# FIXME(jade): expect-test system for pytest that allows for updating these easily
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ShouldError("{}", '"x', """error: missing closing quote in selection path '"x'"""),
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ShouldError(
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"[]",
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"x",
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"""error: the value being indexed in the selection path 'x' at '' should be a set but is a list: [ ]""",
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),
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ShouldError(
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"{}",
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"1",
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"""error: the expression selected by the selection path '1' should be a list but is a set: { }""",
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),
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ShouldError(
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"{}",
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".",
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"""error: Leading dot in attribute selection path '.' is not allowed! If the attribute name is an empty string, use '\"\".foo.bar'""",
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),
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ShouldError(
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"{}",
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"bla..blub",
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"""error: consecutive dots not allowed in selection path 'bla..blub', use 'foo."".bar' to denote an empty attribute name""",
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),
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ShouldError(
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"[]", "1", """error: list index 1 in selection path '1' is out of range for list [ ]"""
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),
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ShouldError(
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"{ x.y = { z = 2; a = 3; }; }",
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"x.y.c",
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dedent("""\
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error: attribute 'c' in selection path 'x.y.c' not found inside path 'x.y', whose contents are: { a = 3; z = 2; }
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Did you mean one of a or z?"""),
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),
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]
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# I do not know why it does this, but I guess it makes sense as allowing a tool
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# to pass -A unconditionally and then allow a blank attribute to mean the whole
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# thing
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def test_attrpath_accepts_empty_attr_as_no_attr(nix: Nix):
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assert (
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nix.nix_instantiate(["--eval", "--expr", "{}", "-A", ""]).run().ok().stdout_plain == "{ }"
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)
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@pytest.mark.parametrize(("expr", "attr", "error"), ERR_CASES)
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def test_attrpath_error(nix: Nix, expr: str, attr: str, error: str):
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res = nix.nix_instantiate(["--eval", "--expr", expr, "-A", attr]).run()
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assert res.expect(1).stderr_plain == error
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