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.store import _make_local_repo from pre_commit.util import cmd_output from testing.language_helpers import run_language 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' def _make_hello_world(tmp_path): package_json = '''\ {"name": "t", "version": "0.0.1", "bin": {"node-hello": "./bin/main.js"}} ''' tmp_path.joinpath('package.json').write_text(package_json) bin_dir = tmp_path.joinpath('bin') bin_dir.mkdir() bin_dir.joinpath('main.js').write_text( '#!/usr/bin/env node\n' 'console.log("Hello World");\n', ) def test_node_hook_system(tmp_path): _make_hello_world(tmp_path) ret = run_language(tmp_path, node, 'node-hello') assert ret == (0, b'Hello World\n') def test_node_with_user_config_set(tmp_path): cfg = tmp_path.joinpath('cfg') cfg.write_text('cache=/dne\n') with envcontext.envcontext((('NPM_CONFIG_USERCONFIG', str(cfg)),)): test_node_hook_system(tmp_path) @pytest.mark.parametrize('version', (C.DEFAULT, '18.13.0')) def test_node_hook_versions(tmp_path, version): _make_hello_world(tmp_path) ret = run_language(tmp_path, node, 'node-hello', version=version) assert ret == (0, b'Hello World\n') def test_node_additional_deps(tmp_path): _make_local_repo(str(tmp_path)) ret, out = run_language(tmp_path, node, 'npm ls -g', deps=('lodash',)) assert b' lodash@' in out