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test_alias.py
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# Copyright 2016 Amazon.com, Inc. or its affiliates. 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. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file 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.
import os
from awscli.alias import AliasLoader
from awscli.testutils import skip_if_windows
from awscli.testutils import FileCreator
from awscli.testutils import BaseAWSCommandParamsTest
class TestAliases(BaseAWSCommandParamsTest):
def setUp(self):
super(TestAliases, self).setUp()
self.files = FileCreator()
self.alias_file = self.files.create_file('alias', '[toplevel]\n')
self.driver.alias_loader = AliasLoader(self.alias_file)
def tearDown(self):
super(TestAliases, self).tearDown()
self.files.remove_all()
def add_alias(self, alias_name, alias_value):
with open(self.alias_file, 'a+') as f:
f.write('%s = %s\n' % (alias_name, alias_value))
def test_subcommand_alias(self):
self.add_alias('my-alias', 'ec2 describe-regions')
cmdline = 'my-alias'
self.assert_params_for_cmd(cmdline, {})
self.assertEqual(len(self.operations_called), 1)
self.assertEqual(
self.operations_called[0][0].service_model.service_name,
'ec2'
)
self.assertEqual(self.operations_called[0][0].name, 'DescribeRegions')
def test_subcommand_alias_with_additonal_params(self):
self.add_alias(
'my-alias', 'ec2 describe-regions --region-names us-east-1')
cmdline = 'my-alias'
self.assert_params_for_cmd(cmdline, {'RegionNames': ['us-east-1']})
self.assertEqual(len(self.operations_called), 1)
self.assertEqual(
self.operations_called[0][0].service_model.service_name,
'ec2'
)
self.assertEqual(self.operations_called[0][0].name, 'DescribeRegions')
def test_subcommand_alias_then_additonal_params(self):
self.add_alias('my-alias', 'ec2')
cmdline = 'my-alias describe-regions --region-names us-east-1'
self.assert_params_for_cmd(cmdline, {'RegionNames': ['us-east-1']})
self.assertEqual(len(self.operations_called), 1)
self.assertEqual(
self.operations_called[0][0].service_model.service_name,
'ec2'
)
self.assertEqual(self.operations_called[0][0].name, 'DescribeRegions')
def test_subcommand_alias_with_global_params(self):
self.add_alias(
'my-alias',
'ec2 describe-regions --query Regions[].RegionName --output text')
self.parsed_responses = [
{
'Regions': [
{
'Endpoint': 'ec2.us-east-1.amazonaws.com',
'RegionName': 'us-east-1'
}
]
}
]
cmdline = 'my-alias'
stdout, _, _ = self.assert_params_for_cmd(cmdline, {})
self.assertEqual(len(self.operations_called), 1)
self.assertEqual(
self.operations_called[0][0].service_model.service_name,
'ec2'
)
self.assertEqual(self.operations_called[0][0].name, 'DescribeRegions')
self.assertEqual(stdout.strip(), 'us-east-1')
def test_subcommand_alias_then_global_params(self):
self.add_alias('my-alias', 'ec2 describe-regions')
self.parsed_responses = [
{
'Regions': [
{
'Endpoint': 'ec2.us-east-1.amazonaws.com',
'RegionName': 'us-east-1'
}
]
}
]
cmdline = 'my-alias '
cmdline += '--query=Regions[].RegionName '
cmdline += '--output=text'
stdout, _, _ = self.assert_params_for_cmd(cmdline, {})
self.assertEqual(len(self.operations_called), 1)
self.assertEqual(
self.operations_called[0][0].service_model.service_name,
'ec2'
)
self.assertEqual(self.operations_called[0][0].name, 'DescribeRegions')
self.assertEqual(stdout.strip(), 'us-east-1')
def test_global_params_then_subcommand_alias(self):
self.add_alias('my-alias', 'ec2 describe-regions')
self.parsed_responses = [
{
'Regions': [
{
'Endpoint': 'ec2.us-east-1.amazonaws.com',
'RegionName': 'us-east-1'
}
]
}
]
cmdline = '--query=Regions[].RegionName '
cmdline += '--output=text '
cmdline += 'my-alias'
stdout, _, _ = self.assert_params_for_cmd(cmdline, {})
self.assertEqual(len(self.operations_called), 1)
self.assertEqual(
self.operations_called[0][0].service_model.service_name,
'ec2'
)
self.assertEqual(self.operations_called[0][0].name, 'DescribeRegions')
self.assertEqual(stdout.strip(), 'us-east-1')
def test_alias_overrides_builtin_command(self):
self.add_alias('ec2', 's3api')
cmdline = 'ec2 list-buckets'
self.assert_params_for_cmd(cmdline, {})
self.assertEqual(len(self.operations_called), 1)
self.assertEqual(self.operations_called[0][0].name, 'ListBuckets')
def test_alias_proxies_to_shadowed_command(self):
self.add_alias('ec2', 'ec2')
cmdline = 'ec2 describe-regions'
stdout, _, _ = self.assert_params_for_cmd(cmdline, {})
self.assertEqual(len(self.operations_called), 1)
self.assertEqual(
self.operations_called[0][0].service_model.service_name,
'ec2'
)
self.assertEqual(self.operations_called[0][0].name, 'DescribeRegions')
def test_alias_chaining(self):
self.add_alias('base-alias', 'ec2 describe-regions')
self.add_alias(
'wrapper-alias', 'base-alias --region-names us-east-1')
cmdline = 'wrapper-alias'
self.assert_params_for_cmd(cmdline, {'RegionNames': ['us-east-1']})
self.assertEqual(len(self.operations_called), 1)
self.assertEqual(
self.operations_called[0][0].service_model.service_name,
'ec2'
)
self.assertEqual(self.operations_called[0][0].name, 'DescribeRegions')
def test_alias_chaining_with_globals(self):
self.add_alias('base-alias', 'ec2 describe-regions')
self.add_alias(
'wrapper-alias',
'base-alias --query Regions[].RegionName --output text')
cmdline = 'wrapper-alias'
self.parsed_responses = [
{
'Regions': [
{
'Endpoint': 'ec2.us-east-1.amazonaws.com',
'RegionName': 'us-east-1'
}
]
}
]
stdout, _, _ = self.assert_params_for_cmd(cmdline, {})
self.assertEqual(len(self.operations_called), 1)
self.assertEqual(
self.operations_called[0][0].service_model.service_name,
'ec2'
)
self.assertEqual(self.operations_called[0][0].name, 'DescribeRegions')
self.assertEqual(stdout.strip(), 'us-east-1')
def test_external_alias(self):
# The external alias is tested by using mkdir; a command that
# is universal for the various OS's we support
directory_to_make = os.path.join(self.files.rootdir, 'newdir')
self.add_alias('mkdir', '!mkdir %s' % directory_to_make)
self.run_cmd('mkdir')
self.assertTrue(os.path.isdir(directory_to_make))
def test_external_alias_then_additonal_args(self):
# The external alias is tested by using mkdir; a command that
# is universal for the various OS's we support
directory_to_make = os.path.join(self.files.rootdir, 'newdir')
self.add_alias('mkdir', '!mkdir')
self.run_cmd('mkdir %s' % directory_to_make)
self.assertTrue(os.path.isdir(directory_to_make))
def test_external_alias_with_quoted_arguments(self):
directory_to_make = os.path.join(self.files.rootdir, 'new dir')
self.add_alias('mkdir', '!mkdir')
self.run_cmd(['mkdir', directory_to_make])
self.assertTrue(os.path.isdir(directory_to_make))
@skip_if_windows('Windows does not support BASH functions')
def test_external_alias_with_wrapper_bash_function(self):
# The external alias is tested by using mkdir; a command that
# is universal for the various OS's we support
directory_to_make = os.path.join(self.files.rootdir, 'newdir')
self.add_alias('mkdir', '!f() { mkdir "${1}"; }; f')
self.run_cmd('mkdir %s' % directory_to_make)
self.assertTrue(os.path.isdir(directory_to_make))