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#!/usr/bin/env python3
# Copyright 2017 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
from . import js_checker
import json
import os
import sys
import unittest
import tempfile
_HERE_PATH = os.path.dirname(__file__)
sys.path.append(os.path.join(_HERE_PATH, '..', '..'))
from PRESUBMIT_test_mocks import MockInputApi, MockOutputApi, MockFile
class JsCheckerEsLintTest(unittest.TestCase):
def setUp(self):
self._tmp_files = []
def tearDown(self):
for file in self._tmp_files:
os.remove(file)
def _runChecks(self, file_contents, file_type):
tmp_args = {'suffix': '.' + file_type, 'dir': _HERE_PATH, 'delete': False}
with tempfile.NamedTemporaryFile(**tmp_args) as f:
tmp_file = f.name
self._tmp_files.append(tmp_file)
f.write(file_contents.encode('utf-8'))
input_api = MockInputApi()
input_api.files = [MockFile(os.path.abspath(tmp_file), '')]
input_api.presubmit_local_path = _HERE_PATH
checker = js_checker.JSChecker(input_api, MockOutputApi())
output = checker.RunEsLintChecks(input_api.AffectedFiles(),
format='json')[0]
# Extract ESLint's error from the PresubmitError. This is added in
# third_party/node/node.py.
search_token = '\' failed\n'
json_start_index = output.message.index(search_token)
json_error_str = output.message[json_start_index + len(search_token):]
# ESLint's errors are in JSON format.
return json.loads(json_error_str)[0].get('messages')
def _assertError(self, results, rule_id, line):
self.assertEqual(1, len(results))
message = results[0]
self.assertEqual(rule_id, message.get('ruleId'))
self.assertEqual(line, message.get('line'))
def testPrimitiveWrappersCheck(self):
results = self._runChecks('const a = new Number(1);', 'js')
self._assertError(results, 'no-new-wrappers', 1)
results = self._runChecks(
'''
// eslint-disable-next-line @typescript-eslint/no-unused-vars
const a: number = new Number(1);
''', 'ts')
self._assertError(results, 'no-new-wrappers', 3)
def testTypeScriptEslintPluginCheck(self):
results = self._runChecks('const a: number = 1;', 'ts')
self._assertError(results, '@typescript-eslint/no-unused-vars', 1)
if __name__ == '__main__':
unittest.main()
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