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import re
import os
import json
import time
import shutil
import unittest
import six
from io import BytesIO
from localstack import config
from localstack.constants import LOCALSTACK_ROOT_FOLDER, LOCALSTACK_MAVEN_VERSION
from localstack.utils import testutil
from localstack.utils.aws import aws_stack
from localstack.utils.common import (
unzip, new_tmp_dir, short_uid, load_file, to_str, mkdir, download,
run_safe, get_free_tcp_port, get_service_protocol, retry)
from localstack.services.infra import start_proxy
from localstack.services.awslambda import lambda_api, lambda_executors
from localstack.services.generic_proxy import ProxyListener
from localstack.services.awslambda.lambda_api import (
LAMBDA_RUNTIME_DOTNETCORE2, LAMBDA_RUNTIME_RUBY25, LAMBDA_RUNTIME_PYTHON27,
use_docker, LAMBDA_RUNTIME_PYTHON36, LAMBDA_RUNTIME_JAVA8,
LAMBDA_RUNTIME_NODEJS810, LAMBDA_RUNTIME_CUSTOM_RUNTIME
)
from .lambdas import lambda_integration
THIS_FOLDER = os.path.dirname(os.path.realpath(__file__))
TEST_LAMBDA_PYTHON = os.path.join(THIS_FOLDER, 'lambdas', 'lambda_integration.py')
TEST_LAMBDA_PYTHON3 = os.path.join(THIS_FOLDER, 'lambdas', 'lambda_python3.py')
TEST_LAMBDA_NODEJS = os.path.join(THIS_FOLDER, 'lambdas', 'lambda_integration.js')
TEST_LAMBDA_RUBY = os.path.join(THIS_FOLDER, 'lambdas', 'lambda_integration.rb')
TEST_LAMBDA_DOTNETCORE2 = os.path.join(THIS_FOLDER, 'lambdas', 'dotnetcore2', 'dotnetcore2.zip')
TEST_LAMBDA_CUSTOM_RUNTIME = os.path.join(THIS_FOLDER, 'lambdas', 'custom-runtime')
TEST_LAMBDA_JAVA = os.path.join(LOCALSTACK_ROOT_FOLDER, 'localstack', 'infra', 'localstack-utils-tests.jar')
TEST_LAMBDA_JAVA_WITH_LIB = os.path.join(THIS_FOLDER, 'lambdas', 'java', 'lambda-function-with-lib-0.0.1.jar')
TEST_LAMBDA_ENV = os.path.join(THIS_FOLDER, 'lambdas', 'lambda_environment.py')
TEST_LAMBDA_NAME_PY = 'test_lambda_py'
TEST_LAMBDA_NAME_PY3 = 'test_lambda_py3'
TEST_LAMBDA_NAME_JS = 'test_lambda_js'
TEST_LAMBDA_NAME_RUBY = 'test_lambda_ruby'
TEST_LAMBDA_NAME_DOTNETCORE2 = 'test_lambda_dotnetcore2'
TEST_LAMBDA_NAME_CUSTOM_RUNTIME = 'test_lambda_custom_runtime'
TEST_LAMBDA_NAME_JAVA = 'test_lambda_java'
TEST_LAMBDA_NAME_JAVA_STREAM = 'test_lambda_java_stream'
TEST_LAMBDA_NAME_JAVA_SERIALIZABLE = 'test_lambda_java_serializable'
TEST_LAMBDA_NAME_ENV = 'test_lambda_env'
MAVEN_BASE_URL = 'https://repo.maven.apache.org/maven2'
TEST_LAMBDA_JAR_URL = ('{url}/cloud/localstack/{name}/{version}/{name}-{version}-tests.jar').format(
version=LOCALSTACK_MAVEN_VERSION, url=MAVEN_BASE_URL, name='localstack-utils')
TEST_LAMBDA_LIBS = ['localstack', 'localstack_client', 'requests',
'psutil', 'urllib3', 'chardet', 'certifi', 'idna', 'pip', 'dns']
class LambdaTestBase(unittest.TestCase):
def check_lambda_logs(self, func_name, expected_lines=[]):
logs_client = aws_stack.connect_to_service('logs')
log_group_name = '/aws/lambda/%s' % func_name
streams = logs_client.describe_log_streams(logGroupName=log_group_name)['logStreams']
streams = sorted(streams, key=lambda x: x['creationTime'], reverse=True)
log_events = logs_client.get_log_events(
logGroupName=log_group_name, logStreamName=streams[0]['logStreamName'])['events']
log_messages = [e['message'] for e in log_events]
for line in expected_lines:
if '.*' in line:
found = [re.match(line, m) for m in log_messages]
if any(found):
continue
self.assertIn(line, log_messages)
class TestLambdaBaseFeatures(unittest.TestCase):
def test_forward_to_fallback_url_dynamodb(self):
db_table = 'lambda-records'
ddb_client = aws_stack.connect_to_service('dynamodb')
def num_items():
return len((run_safe(ddb_client.scan, TableName=db_table) or {'Items': []})['Items'])
items_before = num_items()
self._run_forward_to_fallback_url('dynamodb://%s' % db_table)
items_after = num_items()
self.assertEqual(items_after, items_before + 3)
def test_forward_to_fallback_url_http(self):
class MyUpdateListener(ProxyListener):
def forward_request(self, method, path, data, headers):
records.append(data)
return 200
records = []
local_port = get_free_tcp_port()
proxy = start_proxy(local_port, backend_url=None, update_listener=MyUpdateListener())
items_before = len(records)
self._run_forward_to_fallback_url('%s://localhost:%s' % (get_service_protocol(), local_port))
items_after = len(records)
self.assertEqual(items_after, items_before + 3)
proxy.stop()
def _run_forward_to_fallback_url(self, url, num_requests=3):
lambda_client = aws_stack.connect_to_service('lambda')
config.LAMBDA_FALLBACK_URL = url
try:
for i in range(num_requests):
lambda_client.invoke(FunctionName='non-existing-lambda-%s' % i,
Payload=b'{}', InvocationType='RequestResponse')
finally:
config.LAMBDA_FALLBACK_URL = ''
def test_dead_letter_queue(self):
sqs_client = aws_stack.connect_to_service('sqs')
lambda_client = aws_stack.connect_to_service('lambda')
# create DLQ and Lambda function
queue_name = 'test-%s' % short_uid()
lambda_name = 'test-%s' % short_uid()
queue_url = sqs_client.create_queue(QueueName=queue_name)['QueueUrl']
queue_arn = aws_stack.sqs_queue_arn(queue_name)
zip_file = testutil.create_lambda_archive(load_file(TEST_LAMBDA_PYTHON),
get_content=True, libs=TEST_LAMBDA_LIBS, runtime=LAMBDA_RUNTIME_PYTHON36)
testutil.create_lambda_function(func_name=lambda_name, zip_file=zip_file,
runtime=LAMBDA_RUNTIME_PYTHON36, DeadLetterConfig={'TargetArn': queue_arn})
# invoke Lambda, triggering an error
payload = {
lambda_integration.MSG_BODY_RAISE_ERROR_FLAG: 1
}
lambda_client.invoke(FunctionName=lambda_name,
Payload=json.dumps(payload), InvocationType='Event')
# assert that message has been received on the DLQ
def receive_dlq():
result = sqs_client.receive_message(QueueUrl=queue_url, MessageAttributeNames=['All'])
self.assertGreater(len(result['Messages']), 0)
msg_attrs = result['Messages'][0]['MessageAttributes']
self.assertIn('RequestID', msg_attrs)
self.assertIn('ErrorCode', msg_attrs)
self.assertIn('ErrorMessage', msg_attrs)
retry(receive_dlq, retries=8, sleep=2)
def test_add_lambda_permission(self):
iam_client = aws_stack.connect_to_service('iam')
lambda_client = aws_stack.connect_to_service('lambda')
# create lambda permission
action = 'lambda:InvokeFunction'
sid = 's3'
resp = lambda_client.add_permission(FunctionName=TEST_LAMBDA_NAME_PY, Action=action,
StatementId=sid, Principal='s3.amazonaws.com', SourceArn=aws_stack.s3_bucket_arn('test-bucket'))
self.assertIn('Statement', resp)
# fetch lambda policy
policy = lambda_client.get_policy(FunctionName=TEST_LAMBDA_NAME_PY)['Policy']
self.assertIsInstance(policy, six.string_types)
policy = json.loads(to_str(policy))
self.assertEqual(policy['Statement'][0]['Action'], action)
self.assertEqual(policy['Statement'][0]['Sid'], sid)
self.assertEqual(policy['Statement'][0]['Resource'], lambda_api.func_arn(TEST_LAMBDA_NAME_PY))
# fetch IAM policy
policies = iam_client.list_policies(Scope='Local', MaxItems=500)['Policies']
matching = [p for p in policies if p['PolicyName'] == 'lambda_policy_%s' % TEST_LAMBDA_NAME_PY]
self.assertEqual(len(matching), 1)
self.assertIn(':policy/', matching[0]['Arn'])
# remove permission that we just added
resp = lambda_client.remove_permission(FunctionName=TEST_LAMBDA_NAME_PY,
StatementId=resp['Statement'], Qualifier='qual1', RevisionId='r1')
self.assertEqual(resp['ResponseMetadata']['HTTPStatusCode'], 200)
class TestPythonRuntimes(LambdaTestBase):
@classmethod
def setUpClass(cls):
cls.lambda_client = aws_stack.connect_to_service('lambda')
cls.s3_client = aws_stack.connect_to_service('s3')
Util.create_function(TEST_LAMBDA_PYTHON, TEST_LAMBDA_NAME_PY,
runtime=LAMBDA_RUNTIME_PYTHON27, libs=TEST_LAMBDA_LIBS)
@classmethod
def tearDownClass(cls):
testutil.delete_lambda_function(TEST_LAMBDA_NAME_PY)
def test_invocation_type_not_set(self):
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_PY, Payload=b'{}')
result_data = json.loads(result['Payload'].read())
self.assertEqual(result['StatusCode'], 200)
self.assertEqual(result_data['event'], json.loads('{}'))
def test_invocation_type_request_response(self):
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_PY,
Payload=b'{}', InvocationType='RequestResponse')
result_data = result['Payload'].read()
result_data = json.loads(to_str(result_data))
self.assertEqual(result['StatusCode'], 200)
self.assertIsInstance(result_data, dict)
def test_invocation_type_event(self):
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_PY,
Payload=b'{}', InvocationType='Event')
self.assertEqual(result['StatusCode'], 202)
def test_invocation_type_dry_run(self):
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_PY, Payload=b'{}',
InvocationType='DryRun')
self.assertEqual(result['StatusCode'], 204)
def test_lambda_environment(self):
vars = {'Hello': 'World'}
zip_file = testutil.create_lambda_archive(
load_file(TEST_LAMBDA_ENV), get_content=True,
libs=TEST_LAMBDA_LIBS, runtime=LAMBDA_RUNTIME_PYTHON27)
testutil.create_lambda_function(
func_name=TEST_LAMBDA_NAME_ENV, zip_file=zip_file,
runtime=LAMBDA_RUNTIME_PYTHON27, envvars=vars)
# invoke function and assert result contains env vars
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_ENV, Payload=b'{}')
result_data = result['Payload']
self.assertEqual(result['StatusCode'], 200)
self.assertDictEqual(json.load(result_data), vars)
# get function config and assert result contains env vars
result = self.lambda_client.get_function_configuration(
FunctionName=TEST_LAMBDA_NAME_ENV)
self.assertEqual(result['Environment'], {'Variables': vars})
# clean up
testutil.delete_lambda_function(TEST_LAMBDA_NAME_ENV)
def test_invocation_with_qualifier(self):
lambda_name = 'test_lambda_%s' % short_uid()
bucket_name = 'test-bucket-lambda2'
bucket_key = 'test_lambda.zip'
# upload zip file to S3
zip_file = testutil.create_lambda_archive(
load_file(TEST_LAMBDA_PYTHON),
get_content=True,
libs=TEST_LAMBDA_LIBS,
runtime=LAMBDA_RUNTIME_PYTHON27
)
self.s3_client.create_bucket(Bucket=bucket_name)
self.s3_client.upload_fileobj(
BytesIO(zip_file), bucket_name, bucket_key)
# create lambda function
response = self.lambda_client.create_function(
FunctionName=lambda_name, Handler='handler.handler',
Runtime=lambda_api.LAMBDA_RUNTIME_PYTHON27, Role='r1',
Code={
'S3Bucket': bucket_name,
'S3Key': bucket_key
},
Publish=True
)
self.assertIn('Version', response)
# invoke lambda function
data_before = b'{"foo": "bar with \'quotes\\""}'
result = self.lambda_client.invoke(
FunctionName=lambda_name,
Payload=data_before,
Qualifier=response['Version']
)
data_after = json.loads(result['Payload'].read())
self.assertEqual(json.loads(to_str(data_before)), data_after['event'])
context = data_after['context']
self.assertEqual(response['Version'], context['function_version'])
self.assertEqual(lambda_name, context['function_name'])
# assert that logs are present
expected = ['Lambda log message - print function']
if use_docker():
# Note that during regular test execution, nosetests captures the output from
# the logging module - hence we can only expect this when running in Docker
expected.append('.*Lambda log message - logging module')
self.check_lambda_logs(lambda_name, expected_lines=expected)
# clean up
testutil.delete_lambda_function(lambda_name)
def test_upload_lambda_from_s3(self):
lambda_name = 'test_lambda_%s' % short_uid()
bucket_name = 'test-bucket-lambda'
bucket_key = 'test_lambda.zip'
# upload zip file to S3
zip_file = testutil.create_lambda_archive(
load_file(TEST_LAMBDA_PYTHON),
get_content=True,
libs=TEST_LAMBDA_LIBS,
runtime=LAMBDA_RUNTIME_PYTHON27
)
self.s3_client.create_bucket(Bucket=bucket_name)
self.s3_client.upload_fileobj(
BytesIO(zip_file), bucket_name, bucket_key)
# create lambda function
self.lambda_client.create_function(
FunctionName=lambda_name, Handler='handler.handler',
Runtime=lambda_api.LAMBDA_RUNTIME_PYTHON27, Role='r1',
Code={
'S3Bucket': bucket_name,
'S3Key': bucket_key
}
)
# invoke lambda function
data_before = b'{"foo": "bar with \'quotes\\""}'
result = self.lambda_client.invoke(
FunctionName=lambda_name, Payload=data_before)
data_after = json.loads(result['Payload'].read())
self.assertEqual(json.loads(to_str(data_before)), data_after['event'])
context = data_after['context']
self.assertEqual('$LATEST', context['function_version'])
self.assertEqual(lambda_name, context['function_name'])
# clean up
testutil.delete_lambda_function(lambda_name)
def test_python_lambda_running_in_docker(self):
if not use_docker():
return
zip_file = testutil.create_lambda_archive(
load_file(TEST_LAMBDA_PYTHON3),
get_content=True,
libs=TEST_LAMBDA_LIBS,
runtime=LAMBDA_RUNTIME_PYTHON36
)
testutil.create_lambda_function(
func_name=TEST_LAMBDA_NAME_PY3,
zip_file=zip_file,
runtime=LAMBDA_RUNTIME_PYTHON36
)
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_PY3, Payload=b'{}')
result_data = result['Payload'].read()
self.assertEqual(result['StatusCode'], 200)
self.assertEqual(to_str(result_data).strip(), '{}')
# clean up
testutil.delete_lambda_function(TEST_LAMBDA_NAME_PY3)
def test_handler_in_submodule(self):
func_name = 'lambda-%s' % short_uid()
zip_file = testutil.create_lambda_archive(
load_file(TEST_LAMBDA_PYTHON), get_content=True,
libs=TEST_LAMBDA_LIBS, runtime=LAMBDA_RUNTIME_PYTHON36,
file_name='abc/def/main.py')
testutil.create_lambda_function(func_name=func_name, zip_file=zip_file,
handler='abc.def.main.handler', runtime=LAMBDA_RUNTIME_PYTHON36)
# invoke function and assert result
result = self.lambda_client.invoke(FunctionName=func_name, Payload=b'{}')
result_data = json.loads(result['Payload'].read())
self.assertEqual(result['StatusCode'], 200)
self.assertEqual(result_data['event'], json.loads('{}'))
class TestNodeJSRuntimes(LambdaTestBase):
@classmethod
def setUpClass(cls):
cls.lambda_client = aws_stack.connect_to_service('lambda')
def test_nodejs_lambda_running_in_docker(self):
if not use_docker():
return
zip_file = testutil.create_zip_file(
TEST_LAMBDA_NODEJS, get_content=True)
testutil.create_lambda_function(
func_name=TEST_LAMBDA_NAME_JS,
zip_file=zip_file,
handler='lambda_integration.handler',
runtime=LAMBDA_RUNTIME_NODEJS810
)
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_JS, Payload=b'{}')
result_data = result['Payload'].read()
self.assertEqual(result['StatusCode'], 200)
self.assertEqual(to_str(result_data).strip(), '{}')
# assert that logs are present
expected = ['.*Node.js Lambda handler executing.']
self.check_lambda_logs(TEST_LAMBDA_NAME_JS, expected_lines=expected)
# clean up
testutil.delete_lambda_function(TEST_LAMBDA_NAME_JS)
class TestCustomRuntimes(LambdaTestBase):
@classmethod
def setUpClass(cls):
cls.lambda_client = aws_stack.connect_to_service('lambda')
def test_nodejs_lambda_running_in_docker(self):
if not use_docker():
return
zip_file = testutil.create_zip_file(
TEST_LAMBDA_CUSTOM_RUNTIME, get_content=True)
testutil.create_lambda_function(
func_name=TEST_LAMBDA_NAME_CUSTOM_RUNTIME,
zip_file=zip_file,
handler='function.handler',
runtime=LAMBDA_RUNTIME_CUSTOM_RUNTIME
)
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_CUSTOM_RUNTIME,
Payload=b'{"text":"bar with \'quotes\\""}')
result_data = result['Payload'].read()
self.assertEqual(result['StatusCode'], 200)
self.assertEqual(
to_str(result_data).strip(),
"""Echoing request: '{"text": "bar with \'quotes\\""}'""")
# assert that logs are present
expected = ['.*Custom Runtime Lambda handler executing.']
self.check_lambda_logs(
TEST_LAMBDA_NAME_CUSTOM_RUNTIME, expected_lines=expected)
# clean up
testutil.delete_lambda_function(TEST_LAMBDA_NAME_CUSTOM_RUNTIME)
class TestDotNetCoreRuntimes(LambdaTestBase):
@classmethod
def setUpClass(cls):
cls.lambda_client = aws_stack.connect_to_service('lambda')
# lambda .NET Core 2.0 is already a zip
zip_file = TEST_LAMBDA_DOTNETCORE2
cls.zip_file_content = None
with open(zip_file, 'rb') as file_obj:
cls.zip_file_content = file_obj.read()
def test_dotnet_lambda_running_in_docker(self):
if not use_docker():
return
testutil.create_lambda_function(
func_name=TEST_LAMBDA_NAME_DOTNETCORE2,
zip_file=self.zip_file_content,
handler='DotNetCore2::DotNetCore2.Lambda.Function::SimpleFunctionHandler',
runtime=LAMBDA_RUNTIME_DOTNETCORE2
)
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_DOTNETCORE2, Payload=b'{}')
result_data = result['Payload'].read()
self.assertEqual(result['StatusCode'], 200)
self.assertEqual(to_str(result_data).strip(), '{}')
# assert that logs are present
expected = ['Running .NET Core 2.0 Lambda']
self.check_lambda_logs(TEST_LAMBDA_NAME_DOTNETCORE2, expected_lines=expected)
# clean up
testutil.delete_lambda_function(TEST_LAMBDA_NAME_DOTNETCORE2)
class TestRubyRuntimes(LambdaTestBase):
@classmethod
def setUpClass(cls):
cls.lambda_client = aws_stack.connect_to_service('lambda')
def test_ruby_lambda_running_in_docker(self):
if not use_docker():
return
zip_file = testutil.create_zip_file(
TEST_LAMBDA_RUBY, get_content=True)
testutil.create_lambda_function(
func_name=TEST_LAMBDA_NAME_RUBY,
zip_file=zip_file,
handler='lambda_integration.handler',
runtime=LAMBDA_RUNTIME_RUBY25
)
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_RUBY, Payload=b'{}')
result_data = result['Payload'].read()
self.assertEqual(result['StatusCode'], 200)
self.assertEqual(to_str(result_data).strip(), '{}')
# clean up
testutil.delete_lambda_function(TEST_LAMBDA_NAME_RUBY)
class TestJavaRuntimes(LambdaTestBase):
@classmethod
def setUpClass(cls):
cls.lambda_client = aws_stack.connect_to_service('lambda')
# deploy lambda - Java
if not os.path.exists(TEST_LAMBDA_JAVA):
mkdir(os.path.dirname(TEST_LAMBDA_JAVA))
download(TEST_LAMBDA_JAR_URL, TEST_LAMBDA_JAVA)
# Lambda supports single JAR deployments without the zip,
# so we upload the JAR directly.
cls.test_java_jar = load_file(TEST_LAMBDA_JAVA, mode='rb')
cls.test_java_zip = testutil.create_zip_file(TEST_LAMBDA_JAVA, get_content=True)
testutil.create_lambda_function(
func_name=TEST_LAMBDA_NAME_JAVA,
zip_file=cls.test_java_jar,
runtime=LAMBDA_RUNTIME_JAVA8,
handler='cloud.localstack.sample.LambdaHandler'
)
# deploy lambda - Java with stream handler
testutil.create_lambda_function(
func_name=TEST_LAMBDA_NAME_JAVA_STREAM,
zip_file=cls.test_java_jar,
runtime=LAMBDA_RUNTIME_JAVA8,
handler='cloud.localstack.sample.LambdaStreamHandler'
)
# deploy lambda - Java with serializable input object
testutil.create_lambda_function(
func_name=TEST_LAMBDA_NAME_JAVA_SERIALIZABLE,
zip_file=cls.test_java_zip,
runtime=LAMBDA_RUNTIME_JAVA8,
handler='cloud.localstack.sample.SerializedInputLambdaHandler'
)
@classmethod
def tearDownClass(cls):
# clean up
testutil.delete_lambda_function(TEST_LAMBDA_NAME_JAVA)
testutil.delete_lambda_function(TEST_LAMBDA_NAME_JAVA_STREAM)
testutil.delete_lambda_function(TEST_LAMBDA_NAME_JAVA_SERIALIZABLE)
def test_java_runtime(self):
self.assertIsNotNone(self.test_java_jar)
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_JAVA, Payload=b'{}')
result_data = result['Payload'].read()
self.assertEqual(result['StatusCode'], 200)
self.assertIn('LinkedHashMap', to_str(result_data))
def test_java_runtime_with_lib(self):
java_jar_with_lib = load_file(TEST_LAMBDA_JAVA_WITH_LIB, mode='rb')
# create ZIP file from JAR file
jar_dir = new_tmp_dir()
zip_dir = new_tmp_dir()
unzip(TEST_LAMBDA_JAVA_WITH_LIB, jar_dir)
shutil.move(os.path.join(jar_dir, 'lib'), os.path.join(zip_dir, 'lib'))
jar_without_libs_file = testutil.create_zip_file(jar_dir)
shutil.copy(jar_without_libs_file, os.path.join(zip_dir, 'lib', 'lambda.jar'))
java_zip_with_lib = testutil.create_zip_file(zip_dir, get_content=True)
for archive in [java_jar_with_lib, java_zip_with_lib]:
lambda_name = 'test-%s' % short_uid()
testutil.create_lambda_function(func_name=lambda_name,
zip_file=archive, runtime=LAMBDA_RUNTIME_JAVA8,
handler='cloud.localstack.sample.LambdaHandlerWithLib')
result = self.lambda_client.invoke(FunctionName=lambda_name, Payload=b'{"echo":"echo"}')
result_data = result['Payload'].read()
self.assertEqual(result['StatusCode'], 200)
self.assertIn('echo', to_str(result_data))
# clean up
testutil.delete_lambda_function(lambda_name)
def test_sns_event(self):
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_JAVA, InvocationType='Event',
Payload=b'{"Records": [{"Sns": {"Message": "{}"}}]}')
self.assertEqual(result['StatusCode'], 202)
def test_ddb_event(self):
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_JAVA, InvocationType='Event',
Payload=b'{"Records": [{"dynamodb": {"Message": "{}"}}]}')
self.assertEqual(result['StatusCode'], 202)
def test_kinesis_invocation(self):
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_JAVA,
Payload=b'{"Records": [{"Kinesis": {"Data": "data", "PartitionKey": "partition"}}]}')
result_data = result['Payload'].read()
self.assertEqual(result['StatusCode'], 200)
self.assertIn('KinesisEvent', to_str(result_data))
def test_kinesis_event(self):
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_JAVA, InvocationType='Event',
Payload=b'{"Records": [{"Kinesis": {"Data": "data", "PartitionKey": "partition"}}]}')
result_data = result['Payload'].read()
self.assertEqual(result['StatusCode'], 202)
self.assertEqual(to_str(result_data).strip(), '')
def test_stream_handler(self):
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_JAVA_STREAM, Payload=b'{}')
result_data = result['Payload'].read()
self.assertEqual(result['StatusCode'], 200)
self.assertEqual(to_str(result_data).strip(), '{}')
def test_serializable_input_object(self):
result = self.lambda_client.invoke(
FunctionName=TEST_LAMBDA_NAME_JAVA_SERIALIZABLE,
Payload=b'{"bucket": "test_bucket", "key": "test_key"}')
result_data = result['Payload'].read()
self.assertEqual(result['StatusCode'], 200)
self.assertDictEqual(
json.loads(to_str(result_data)),
{'validated': True, 'bucket': 'test_bucket', 'key': 'test_key'}
)
class TestDockerBehaviour(LambdaTestBase):
@classmethod
def setUpClass(cls):
cls.lambda_client = aws_stack.connect_to_service('lambda')
def test_prime_and_destroy_containers(self):
# run these tests only for the "reuse containers" Lambda executor
if not isinstance(lambda_api.LAMBDA_EXECUTOR,
lambda_executors.LambdaExecutorReuseContainers):
return
executor = lambda_api.LAMBDA_EXECUTOR
func_name = 'test_prime_and_destroy_containers'
func_arn = lambda_api.func_arn(func_name)
# make sure existing containers are gone
executor.cleanup()
self.assertEqual(len(executor.get_all_container_names()), 0)
# deploy and invoke lambda without Docker
zip_file = testutil.create_lambda_archive(
load_file(TEST_LAMBDA_ENV),
get_content=True,
libs=TEST_LAMBDA_LIBS,
runtime=LAMBDA_RUNTIME_PYTHON27
)
testutil.create_lambda_function(
func_name=func_name,
zip_file=zip_file,
runtime=LAMBDA_RUNTIME_PYTHON27,
envvars={'Hello': 'World'}
)
self.assertEqual(len(executor.get_all_container_names()), 0)
self.assertDictEqual(executor.function_invoke_times, {})
# invoke a few times.
durations = []
num_iterations = 3
for i in range(0, num_iterations + 1):
prev_invoke_time = None
if i > 0:
prev_invoke_time = executor.function_invoke_times[func_arn]
start_time = time.time()
self.lambda_client.invoke(FunctionName=func_name, Payload=b'{}')
duration = time.time() - start_time
self.assertEqual(len(executor.get_all_container_names()), 1)
# ensure the last invoke time is being updated properly.
if i > 0:
self.assertGreater(executor.function_invoke_times[func_arn], prev_invoke_time)
else:
self.assertGreater(executor.function_invoke_times[func_arn], 0)
durations.append(duration)
# the first call would have created the container. subsequent calls would reuse and be faster.
for i in range(1, num_iterations + 1):
self.assertLess(durations[i], durations[0])
status = executor.get_docker_container_status(func_arn)
self.assertEqual(status, 1)
container_network = executor.get_docker_container_network(func_arn)
self.assertEqual(container_network, 'default')
executor.cleanup()
status = executor.get_docker_container_status(func_arn)
self.assertEqual(status, 0)
self.assertEqual(len(executor.get_all_container_names()), 0)
# clean up
testutil.delete_lambda_function(func_name)
def test_docker_command_for_separate_container_lambda_executor(self):
# run these tests only for the "separate containers" Lambda executor
if not isinstance(lambda_api.LAMBDA_EXECUTOR,
lambda_executors.LambdaExecutorSeparateContainers):
return
executor = lambda_api.LAMBDA_EXECUTOR
func_name = 'test_docker_command_for_separate_container_lambda_executor'
func_arn = lambda_api.func_arn(func_name)
handler = 'handler'
lambda_cwd = '/app/lambda'
network = 'compose_network'
config.LAMBDA_DOCKER_NETWORK = network
cmd = executor.prepare_execution(func_arn, {}, LAMBDA_RUNTIME_NODEJS810, '', handler, lambda_cwd)
expected = 'docker run -v "%s":/var/task --network="%s" --rm "lambci/lambda:%s" "%s"' % (
lambda_cwd, network, LAMBDA_RUNTIME_NODEJS810, handler)
self.assertIn(('--network="%s"' % network), cmd, 'cmd=%s expected=%s' % (cmd, expected))
config.LAMBDA_DOCKER_NETWORK = ''
def test_destroy_idle_containers(self):
# run these tests only for the "reuse containers" Lambda executor
if not isinstance(lambda_api.LAMBDA_EXECUTOR,
lambda_executors.LambdaExecutorReuseContainers):
return
executor = lambda_api.LAMBDA_EXECUTOR
func_name = 'test_destroy_idle_containers'
func_arn = lambda_api.func_arn(func_name)
# make sure existing containers are gone
executor.destroy_existing_docker_containers()
self.assertEqual(len(executor.get_all_container_names()), 0)
# deploy and invoke lambda without Docker
zip_file = testutil.create_lambda_archive(
load_file(TEST_LAMBDA_ENV),
get_content=True,
libs=TEST_LAMBDA_LIBS,
runtime=LAMBDA_RUNTIME_PYTHON27
)
testutil.create_lambda_function(
func_name=func_name,
zip_file=zip_file,
runtime=LAMBDA_RUNTIME_PYTHON27,
envvars={'Hello': 'World'}
)
self.assertEqual(len(executor.get_all_container_names()), 0)
self.lambda_client.invoke(FunctionName=func_name, Payload=b'{}')
self.assertEqual(len(executor.get_all_container_names()), 1)
# try to destroy idle containers.
executor.idle_container_destroyer()
self.assertEqual(len(executor.get_all_container_names()), 1)
# simulate an idle container
executor.function_invoke_times[func_arn] = time.time() - lambda_executors.MAX_CONTAINER_IDLE_TIME_MS
executor.idle_container_destroyer()
self.assertEqual(len(executor.get_all_container_names()), 0)
# clean up
testutil.delete_lambda_function(func_name)
class Util(object):
@classmethod
def create_function(cls, file, name, runtime=None, libs=None):
runtime = runtime or LAMBDA_RUNTIME_PYTHON27
zip_file = testutil.create_lambda_archive(
load_file(file), get_content=True, libs=libs, runtime=runtime)
testutil.create_lambda_function(
func_name=name, zip_file=zip_file, runtime=runtime)