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# -*- coding: utf-8 -*- # Copyright 2013 Google Inc. All Rights Reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. """Tests for cat command.""" from __future__ import absolute_import from __future__ import print_function from __future__ import division from __future__ import unicode_literals import os import sys from gslib.cs_api_map import ApiSelector from gslib.exception import NO_URLS_MATCHED_TARGET import gslib.tests.testcase as testcase from gslib.tests.testcase.integration_testcase import SkipForS3 from gslib.tests.util import GenerationFromURI as urigen from gslib.tests.util import ObjectToURI as suri from gslib.tests.util import RUN_S3_TESTS from gslib.tests.util import SetBotoConfigForTest from gslib.tests.util import SetEnvironmentForTest from gslib.tests.util import TEST_ENCRYPTION_KEY1 from gslib.tests.util import unittest from gslib.utils import cat_helper from gslib.utils import shim_util from unittest import mock class TestCat(testcase.GsUtilIntegrationTestCase): """Integration tests for cat command.""" def test_cat_range(self): """Tests cat command with various range arguments.""" key_uri = self.CreateObject(contents=b'0123456789') # Test various invalid ranges. stderr = self.RunGsUtil( ['cat', '-r a-b', suri(key_uri)], return_stderr=True, expected_status=2 if self._use_gcloud_storage else 1) if self._use_gcloud_storage: self.assertIn( 'Expected a non-negative integer value or a range of such values instead of', stderr) else: self.assertIn('Invalid range', stderr) stderr = self.RunGsUtil( ['cat', '-r 1-2-3', suri(key_uri)], return_stderr=True, expected_status=2 if self._use_gcloud_storage else 1) if self._use_gcloud_storage: self.assertIn( 'Expected a non-negative integer value or a range of such values instead of', stderr) else: self.assertIn('Invalid range', stderr) stderr = self.RunGsUtil( ['cat', '-r 1.7-3', suri(key_uri)], return_stderr=True, expected_status=2 if self._use_gcloud_storage else 1) if self._use_gcloud_storage: self.assertIn( 'Expected a non-negative integer value or a range of such values instead of', stderr) else: self.assertIn('Invalid range', stderr) # Test various valid ranges. stdout = self.RunGsUtil(['cat', '-r', '-', suri(key_uri)], return_stdout=True) self.assertEqual('0123456789', stdout) stdout = self.RunGsUtil( ['cat', '-r', '1000-3000', suri(key_uri)], return_stdout=True) self.assertEqual('', stdout) stdout = self.RunGsUtil( ['cat', '-r', '1000-', suri(key_uri)], return_stdout=True) self.assertEqual('', stdout) stdout = self.RunGsUtil( ['cat', '-r', '1-3', suri(key_uri)], return_stdout=True) self.assertEqual('123', stdout) stdout = self.RunGsUtil( ['cat', '-r', '8-', suri(key_uri)], return_stdout=True) self.assertEqual('89', stdout) stdout = self.RunGsUtil( ['cat', '-r', '0-0', suri(key_uri)], return_stdout=True) self.assertEqual('0', stdout) stdout = self.RunGsUtil( ['cat', '-r', '-3', suri(key_uri)], return_stdout=True) self.assertEqual('789', stdout) def test_cat_version(self): """Tests cat command on versioned objects.""" bucket_uri = self.CreateVersionedBucket() # Create 2 versions of an object. uri1 = self.CreateObject(bucket_uri=bucket_uri, contents=b'data1', gs_idempotent_generation=0) uri2 = self.CreateObject(bucket_uri=bucket_uri, object_name=uri1.object_name, contents=b'data2', gs_idempotent_generation=urigen(uri1)) stdout = self.RunGsUtil(['cat', suri(uri1)], return_stdout=True) # Last version written should be live. self.assertEqual('data2', stdout) # Using either version-specific URI should work. stdout = self.RunGsUtil(['cat', uri1.version_specific_uri], return_stdout=True) self.assertEqual('data1', stdout) stdout = self.RunGsUtil(['cat', uri2.version_specific_uri], return_stdout=True) self.assertEqual('data2', stdout) if RUN_S3_TESTS: # S3 GETs of invalid versions return 400s. # Also, appending between 1 and 3 characters to the version_id can # result in a success (200) response from the server. stderr = self.RunGsUtil(['cat', uri2.version_specific_uri + '23456'], return_stderr=True, expected_status=1) self.assertIn('BadRequestException: 400', stderr) else: # Attempting to cat invalid version should result in an error. stderr = self.RunGsUtil(['cat', uri2.version_specific_uri + '23'], return_stderr=True, expected_status=1) if self._use_gcloud_storage: self.assertIn( 'The following URLs matched no objects or files:\n{}23\n'.format( uri2.version_specific_uri), stderr) else: self.assertIn(NO_URLS_MATCHED_TARGET % uri2.version_specific_uri + '23', stderr) def test_cat_multi_arg(self): """Tests cat command with multiple arguments.""" bucket_uri = self.CreateBucket() data1 = b'0123456789' data2 = b'abcdefghij' obj_uri1 = self.CreateObject(bucket_uri=bucket_uri, contents=data1) obj_uri2 = self.CreateObject(bucket_uri=bucket_uri, contents=data2) stdout, stderr = self.RunGsUtil( ['cat', suri(obj_uri1), suri(bucket_uri) + 'nonexistent'], return_stdout=True, return_stderr=True, expected_status=1) # First object should print, second should produce an exception. self.assertIn(data1.decode('ascii'), stdout) if self._use_gcloud_storage: self.assertIn('The following URLs matched no objects or files', stderr) else: self.assertIn('NotFoundException', stderr) stdout, stderr = self.RunGsUtil( ['cat', suri(bucket_uri) + 'nonexistent', suri(obj_uri1)], return_stdout=True, return_stderr=True, expected_status=1) decoded_data1 = data1.decode('ascii') if self._use_gcloud_storage: self.assertIn(decoded_data1, stdout) self.assertIn('The following URLs matched no objects or files', stderr) else: # If first object is invalid, exception should halt output immediately. self.assertNotIn(decoded_data1, stdout) self.assertIn('NotFoundException', stderr) # Two valid objects should both print successfully. stdout = self.RunGsUtil( ['cat', suri(obj_uri1), suri(obj_uri2)], return_stdout=True) self.assertIn(decoded_data1 + data2.decode('ascii'), stdout) @SkipForS3('S3 customer-supplied encryption keys are not supported.') def test_cat_encrypted_object(self): if self.test_api == ApiSelector.XML: return unittest.skip( 'gsutil does not support encryption with the XML API') object_contents = b'0123456789' object_uri = self.CreateObject(object_name='foo', contents=object_contents, encryption_key=TEST_ENCRYPTION_KEY1) stderr = self.RunGsUtil(['cat', suri(object_uri)], expected_status=1, return_stderr=True) self.assertIn('No decryption key matches object', stderr) boto_config_for_test = [('GSUtil', 'encryption_key', TEST_ENCRYPTION_KEY1)] with SetBotoConfigForTest(boto_config_for_test): stdout = self.RunGsUtil(['cat', suri(object_uri)], return_stdout=True) self.assertEqual(stdout.encode('ascii'), object_contents) stdout = self.RunGsUtil( ['cat', '-r', '1-3', suri(object_uri)], return_stdout=True) self.assertEqual(stdout, '123') class TestShimCatFlags(testcase.ShimUnitTestBase): """Unit tests for shimming cat flags""" def test_shim_translates_flags(self): object_uri = self.CreateObject(contents='0123456789') with SetBotoConfigForTest([('GSUtil', 'use_gcloud_storage', 'True'), ('GSUtil', 'hidden_shim_mode', 'dry_run')]): with SetEnvironmentForTest({ 'CLOUDSDK_CORE_PASS_CREDENTIALS_TO_GSUTIL': 'True', 'CLOUDSDK_ROOT_DIR': 'fake_dir', }): mock_log_handler = self.RunCommand( 'cat', ['-h', '-r', '2-4', suri(object_uri)], return_log_handler=True) info_lines = '\n'.join(mock_log_handler.messages['info']) self.assertIn( 'Gcloud Storage Command: {} storage cat' ' -d -r 2-4 {}'.format( shim_util._get_gcloud_binary_path('fake_dir'), suri(object_uri)), info_lines) class TestCatHelper(testcase.GsUtilUnitTestCase): """Unit tests for cat helper.""" def test_cat_helper_runs_flush(self): cat_command_mock = mock.Mock() cat_helper_mock = cat_helper.CatHelper(command_obj=cat_command_mock) object_contents = '0123456789' bucket_uri = self.CreateBucket(bucket_name='bucket', provider=self.default_provider) obj = self.CreateObject(bucket_uri=bucket_uri, object_name='foo1', contents=object_contents) obj1 = self.CreateObject(bucket_uri=bucket_uri, object_name='foo2', contents=object_contents) cat_command_mock.WildcardIterator.return_value = self._test_wildcard_iterator( 'gs://bucket/foo*') stdout_mock = mock.mock_open()() # Mocks two functions because we need to record the order of the # function calls (write, flush, write, flush). write_flush_collector_mock = mock.Mock() cat_command_mock.gsutil_api.GetObjectMedia = write_flush_collector_mock stdout_mock.flush = write_flush_collector_mock cat_helper_mock.CatUrlStrings(url_strings=['url'], cat_out_fd=stdout_mock) mock_part_one = [ mock.call('bucket', 'foo1', stdout_mock, compressed_encoding=None, start_byte=0, end_byte=None, object_size=10, generation=None, decryption_tuple=None, provider='gs'), mock.call() ] mock_part_two = [ mock.call('bucket', 'foo2', stdout_mock, compressed_encoding=None, start_byte=0, end_byte=None, object_size=10, generation=None, decryption_tuple=None, provider='gs'), mock.call() ] # Needed to do these two checks because the object # ordering varies if run on Windows with Python 3.5. self.assertIn(write_flush_collector_mock.call_args_list[0:2], [mock_part_one, mock_part_two]) self.assertIn(write_flush_collector_mock.call_args_list[2:4], [mock_part_one, mock_part_two])
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