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from __future__ import annotations
import json
import os
import shutil
import sys
from unittest import mock
import pytest
import pre_commit.constants as C
from pre_commit import envcontext
from pre_commit import parse_shebang
from pre_commit.languages import node
from pre_commit.prefix import Prefix
from pre_commit.util import cmd_output
from testing.util import xfailif_windows
ACTUAL_GET_DEFAULT_VERSION = node.get_default_version.__wrapped__
@pytest.fixture
def is_linux():
with mock.patch.object(sys, 'platform', 'linux'):
yield
@pytest.fixture
def is_win32():
with mock.patch.object(sys, 'platform', 'win32'):
yield
@pytest.fixture
def find_exe_mck():
with mock.patch.object(parse_shebang, 'find_executable') as mck:
yield mck
@pytest.mark.usefixtures('is_linux')
def test_sets_system_when_node_and_npm_are_available(find_exe_mck):
find_exe_mck.return_value = '/path/to/exe'
assert ACTUAL_GET_DEFAULT_VERSION() == 'system'
@pytest.mark.usefixtures('is_linux')
def test_uses_default_when_node_and_npm_are_not_available(find_exe_mck):
find_exe_mck.return_value = None
assert ACTUAL_GET_DEFAULT_VERSION() == C.DEFAULT
@pytest.mark.usefixtures('is_win32')
def test_sets_default_on_windows(find_exe_mck):
find_exe_mck.return_value = '/path/to/exe'
assert ACTUAL_GET_DEFAULT_VERSION() == C.DEFAULT
@xfailif_windows # pragma: win32 no cover
def test_healthy_system_node(tmpdir):
tmpdir.join('package.json').write('{"name": "t", "version": "1.0.0"}')
prefix = Prefix(str(tmpdir))
node.install_environment(prefix, 'system', ())
assert node.health_check(prefix, 'system') is None
@xfailif_windows # pragma: win32 no cover
def test_unhealthy_if_system_node_goes_missing(tmpdir):
bin_dir = tmpdir.join('bin').ensure_dir()
node_bin = bin_dir.join('node')
node_bin.mksymlinkto(shutil.which('node'))
prefix_dir = tmpdir.join('prefix').ensure_dir()
prefix_dir.join('package.json').write('{"name": "t", "version": "1.0.0"}')
path = ('PATH', (str(bin_dir), os.pathsep, envcontext.Var('PATH')))
with envcontext.envcontext((path,)):
prefix = Prefix(str(prefix_dir))
node.install_environment(prefix, 'system', ())
assert node.health_check(prefix, 'system') is None
node_bin.remove()
ret = node.health_check(prefix, 'system')
assert ret == '`node --version` returned 127'
@xfailif_windows # pragma: win32 no cover
def test_installs_without_links_outside_env(tmpdir):
tmpdir.join('bin/main.js').ensure().write(
'#!/usr/bin/env node\n'
'_ = require("lodash"); console.log("success!")\n',
)
tmpdir.join('package.json').write(
json.dumps({
'name': 'foo',
'version': '0.0.1',
'bin': {'foo': './bin/main.js'},
'dependencies': {'lodash': '*'},
}),
)
prefix = Prefix(str(tmpdir))
node.install_environment(prefix, 'system', ())
assert node.health_check(prefix, 'system') is None
# this directory shouldn't exist, make sure we succeed without it existing
cmd_output('rm', '-rf', str(tmpdir.join('node_modules')))
with node.in_env(prefix, 'system'):
assert cmd_output('foo')[1] == 'success!\n'
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