1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
from pathlib import Path
from tests.testlib import (
copy_fixture,
flake_compat_arg,
nix,
nix_eval_flake_attr,
nix_eval_flake_compat,
)
# May fail randomly on older Lixes and CppNixes due to: https://git.lix.systems/lix-project/lix/issues/750
def test_file_input(tmpdir: Path):
copy_fixture("file_input", tmpdir)
compat = nix_eval_flake_compat(tmpdir, "lix-manifest")
native = nix_eval_flake_attr(tmpdir, "lix-manifest")
assert native == compat
# Check that the file input is not a derivation, in spite of our use of
# derivations internally.
def test_file_input_not_derivation(tmpdir: Path):
copy_fixture("file_input", tmpdir)
compat = nix_eval_flake_compat(tmpdir, "dependent")
native = nix_eval_flake_attr(tmpdir, "dependent")
assert native == compat
def test_native_fetchTree(tmpdir: Path):
copy_fixture("file_input", tmpdir)
# Make builtins.fetchTree print something visible when it is actually used.
def do_eval(*args):
res = nix(
"eval",
"--json",
*flake_compat_arg,
*args,
"--impure",
"--expr",
"""
let
scope = {
builtins = builtins // {
fetchTree = x: builtins.trace "meow kitty" (builtins.fetchTree x);
};
import = builtins.scopedImport scope;
};
in builtins.scopedImport scope ./default.nix
""",
"lix-manifest",
work_dir=tmpdir,
capture_stderr=True,
)
res.ok()
return res
res = do_eval()
assert b"meow kitty" not in res.proc.stderr
res = do_eval("--arg", "useBuiltinsFetchTree", "true")
assert b"meow kitty" in res.proc.stderr
|
