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import os.path
import pytest
from pre_commit.languages import r
from testing.fixtures import make_config_from_repo
from testing.fixtures import make_repo
from tests.repository_test import _get_hook_no_install
def _test_r_parsing(
tempdir_factory,
store,
hook_id,
expected_hook_expr={},
expected_args={},
):
repo_path = 'r_hooks_repo'
path = make_repo(tempdir_factory, repo_path)
config = make_config_from_repo(path)
hook = _get_hook_no_install(config, store, hook_id)
ret = r._cmd_from_hook(hook)
expected_cmd = 'Rscript'
expected_opts = (
'--no-save', '--no-restore', '--no-site-file', '--no-environ',
)
expected_path = os.path.join(
hook.prefix.prefix_dir, '.'.join([hook_id, 'R']),
)
expected = (
expected_cmd,
*expected_opts,
*(expected_hook_expr or (expected_path,)),
*expected_args,
)
assert ret == expected
def test_r_parsing_file_no_opts_no_args(tempdir_factory, store):
hook_id = 'parse-file-no-opts-no-args'
_test_r_parsing(tempdir_factory, store, hook_id)
def test_r_parsing_file_opts_no_args(tempdir_factory, store):
with pytest.raises(ValueError) as excinfo:
r._entry_validate(['Rscript', '--no-init', '/path/to/file'])
msg = excinfo.value.args
assert msg == (
'The only valid syntax is `Rscript -e {expr}`',
'or `Rscript path/to/hook/script`',
)
def test_r_parsing_file_no_opts_args(tempdir_factory, store):
hook_id = 'parse-file-no-opts-args'
expected_args = ['--no-cache']
_test_r_parsing(
tempdir_factory, store, hook_id, expected_args=expected_args,
)
def test_r_parsing_expr_no_opts_no_args1(tempdir_factory, store):
hook_id = 'parse-expr-no-opts-no-args-1'
_test_r_parsing(
tempdir_factory, store, hook_id, expected_hook_expr=('-e', '1+1'),
)
def test_r_parsing_expr_no_opts_no_args2(tempdir_factory, store):
with pytest.raises(ValueError) as execinfo:
r._entry_validate(['Rscript', '-e', '1+1', '-e', 'letters'])
msg = execinfo.value.args
assert msg == ('You can supply at most one expression.',)
def test_r_parsing_expr_opts_no_args2(tempdir_factory, store):
with pytest.raises(ValueError) as execinfo:
r._entry_validate(
[
'Rscript', '--vanilla', '-e', '1+1', '-e', 'letters',
],
)
msg = execinfo.value.args
assert msg == (
'The only valid syntax is `Rscript -e {expr}`',
'or `Rscript path/to/hook/script`',
)
def test_r_parsing_expr_args_in_entry2(tempdir_factory, store):
with pytest.raises(ValueError) as execinfo:
r._entry_validate(['Rscript', '-e', 'expr1', '--another-arg'])
msg = execinfo.value.args
assert msg == ('You can supply at most one expression.',)
def test_r_parsing_expr_non_Rscirpt(tempdir_factory, store):
with pytest.raises(ValueError) as execinfo:
r._entry_validate(['AnotherScript', '-e', '{{}}'])
msg = execinfo.value.args
assert msg == ('entry must start with `Rscript`.',)
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