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[cloud] Fix AWS Lambda module tests (#21950)

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* Revert "Disable broken tests."

This reverts commit 0d455037a2.

* lambda module - tests - fix year in copyright

* lambda module - tests - mod arguments in each test and eliminate pytest dependency

* lambda module - tests - broaden mocking to protect calls to get_aws_connection_info

* lambda module - tests - refactoring and cleanup
This commit is contained in:
mikedlr 2017-03-01 16:08:02 +00:00 committed by Ryan Brown
parent 95096164dd
commit 7ab0f28e80
1 changed files with 78 additions and 114 deletions
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192
test/units/modules/cloud/amazon/test_lambda.py
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@ -1,5 +1,5 @@
#
# (c) 2016 Michael De La Rue
# (c) 2017 Michael De La Rue
#
# This file is part of Ansible
#
@ -17,11 +17,9 @@
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
from nose.plugins.skip import SkipTest
import pytest
import json
import copy
from ansible.module_utils._text import to_bytes
@ -33,16 +31,13 @@ if not HAS_BOTO3:
# lambda is a keyword so we have to hack this.
_temp = __import__("ansible.modules.cloud.amazon.lambda")
lda = getattr(_temp.modules.cloud.amazon,"lambda")
exit_return_dict={}
def set_module_args(args):
args = json.dumps({'ANSIBLE_MODULE_ARGS': args})
basic._ANSIBLE_ARGS = to_bytes(args)
base_start_function_config_in_aws={
base_lambda_config={
'FunctionName' : 'lambda_name',
'Role' : 'arn:aws:iam::987654321012:role/lambda_basic_execution',
'Handler' : 'lambda_python.my_handler',
@ -53,12 +48,12 @@ base_start_function_config_in_aws={
'CodeSha256' : 'AqMZ+xptM7aC9VXu+5jyp1sqO+Nj4WFMNzQxtPMP2n8=',
}
one_change_start_function_config_in_aws=copy.copy(base_start_function_config_in_aws)
one_change_start_function_config_in_aws['Timeout']=4
two_change_start_function_config_in_aws=copy.copy(one_change_start_function_config_in_aws)
two_change_start_function_config_in_aws['Role']='arn:aws:iam::987654321012:role/lambda_advanced_execution'
code_change_start_function_config_in_aws=copy.copy(base_start_function_config_in_aws)
code_change_start_function_config_in_aws['CodeSha256']='P+Zy8U4T4RiiHWElhL10VBKj9jw4rSJ5bm/TiW+4Rts='
one_change_lambda_config=copy.copy(base_lambda_config)
one_change_lambda_config['Timeout']=4
two_change_lambda_config=copy.copy(one_change_lambda_config)
two_change_lambda_config['Role']='arn:aws:iam::987654321012:role/lambda_advanced_execution'
code_change_lambda_config=copy.copy(base_lambda_config)
code_change_lambda_config['CodeSha256']='P+Zy8U4T4RiiHWElhL10VBKj9jw4rSJ5bm/TiW+4Rts='
base_module_args={
"region": "us-west-1",
@ -73,139 +68,116 @@ base_module_args={
}
#TODO: def test_handle_different_types_in_config_params(monkeypatch):
def test_update_lambda_if_code_changed(monkeypatch):
fake_lambda_connection = MagicMock()
fake_lambda_connection.get_function.configure_mock(
def make_mock_connection(config):
"""return a mock of ansible's boto3_conn ready to return a mock AWS API client"""
lambda_client_double = MagicMock()
lambda_client_double.get_function.configure_mock(
return_value={
'Configuration' : code_change_start_function_config_in_aws
'Configuration' : config
}
)
fake_lambda_connection.update_function_configuration.configure_mock(
lambda_client_double.update_function_configuration.configure_mock(
return_value={
'Version' : 1
}
)
fake_boto3_conn=Mock(return_value=fake_lambda_connection)
fake_boto3_conn=Mock(return_value=lambda_client_double)
return (fake_boto3_conn, lambda_client_double)
class AnsibleFailJson(Exception):
pass
def fail_json_double(*args, **kwargs):
"""works like fail_json but returns module results inside exception instead of stdout"""
kwargs['failed'] = True
raise AnsibleFailJson(kwargs)
#TODO: def test_handle_different_types_in_config_params():
def test_update_lambda_if_code_changed():
set_module_args(base_module_args)
@patch("ansible.modules.cloud.amazon.lambda.boto3_conn", fake_boto3_conn)
def call_module():
with pytest.raises(SystemExit):
lda.main()
(boto3_conn_double, lambda_client_double)=make_mock_connection(code_change_lambda_config)
call_module()
with patch.object(lda, 'boto3_conn', boto3_conn_double):
try:
lda.main()
except SystemExit:
pass
# guard against calling other than for a lambda connection (e.g. IAM)
assert(len(fake_boto3_conn.mock_calls) == 1), "multiple boto connections used unexpectedly"
assert(len(fake_lambda_connection.update_function_configuration.mock_calls) == 0), \
assert(len(boto3_conn_double.mock_calls) == 1), "multiple boto connections used unexpectedly"
assert(len(lambda_client_double.update_function_configuration.mock_calls) == 0), \
"unexpectedly updatede lambda configuration when only code changed"
assert(len(fake_lambda_connection.update_function_configuration.mock_calls) < 2), \
assert(len(lambda_client_double.update_function_configuration.mock_calls) < 2), \
"lambda function update called multiple times when only one time should be needed"
assert(len(fake_lambda_connection.update_function_code.mock_calls) > 1), \
assert(len(lambda_client_double.update_function_code.mock_calls) > 1), \
"failed to update lambda function when code changed"
# 3 because after uploading we call into the return from mock to try to find what function version
# was returned so the MagicMock actually sees two calls for one update.
assert(len(fake_lambda_connection.update_function_code.mock_calls) < 3), \
assert(len(lambda_client_double.update_function_code.mock_calls) < 3), \
"lambda function code update called multiple times when only one time should be needed"
def test_update_lambda_if_config_changed(monkeypatch):
fake_lambda_connection = MagicMock()
fake_lambda_connection.get_function.configure_mock(
return_value={
'Configuration' : two_change_start_function_config_in_aws
}
)
fake_lambda_connection.update_function_configuration.configure_mock(
return_value={
'Version' : 1
}
)
fake_boto3_conn=Mock(return_value=fake_lambda_connection)
def test_update_lambda_if_config_changed():
set_module_args(base_module_args)
@patch("ansible.modules.cloud.amazon.lambda.boto3_conn", fake_boto3_conn)
def call_module():
with pytest.raises(SystemExit):
lda.main()
(boto3_conn_double,lambda_client_double)=make_mock_connection(two_change_lambda_config)
call_module()
with patch.object(lda, 'boto3_conn', boto3_conn_double):
try:
lda.main()
except SystemExit:
pass
# guard against calling other than for a lambda connection (e.g. IAM)
assert(len(fake_boto3_conn.mock_calls) == 1), "multiple boto connections used unexpectedly"
assert(len(fake_lambda_connection.update_function_configuration.mock_calls) > 0), \
assert(len(boto3_conn_double.mock_calls) == 1), "multiple boto connections used unexpectedly"
assert(len(lambda_client_double.update_function_configuration.mock_calls) > 0), \
"failed to update lambda function when configuration changed"
assert(len(fake_lambda_connection.update_function_configuration.mock_calls) < 2), \
assert(len(lambda_client_double.update_function_configuration.mock_calls) < 2), \
"lambda function update called multiple times when only one time should be needed"
assert(len(fake_lambda_connection.update_function_code.mock_calls) == 0), \
assert(len(lambda_client_double.update_function_code.mock_calls) == 0), \
"updated lambda code when no change should have happened"
def test_update_lambda_if_only_one_config_item_changed():
@pytest.mark.skip(reason='test broken, fails when run in isolation')
def test_update_lambda_if_only_one_config_item_changed(monkeypatch):
set_module_args(base_module_args)
(boto3_conn_double,lambda_client_double)=make_mock_connection(one_change_lambda_config)
fake_lambda_connection = MagicMock()
fake_lambda_connection.get_function.configure_mock(
return_value={
'Configuration' : one_change_start_function_config_in_aws
}
)
fake_lambda_connection.update_function_configuration.configure_mock(
return_value={
'Version' : 1
}
)
fake_boto3_conn=Mock(return_value=fake_lambda_connection)
@patch("ansible.modules.cloud.amazon.lambda.boto3_conn", fake_boto3_conn)
def call_module():
with pytest.raises(SystemExit):
with patch.object(lda, 'boto3_conn', boto3_conn_double):
try:
lda.main()
call_module()
except SystemExit:
pass
# guard against calling other than for a lambda connection (e.g. IAM)
assert(len(fake_boto3_conn.mock_calls) == 1), "multiple boto connections used unexpectedly"
assert(len(fake_lambda_connection.update_function_configuration.mock_calls) > 0), \
assert(len(boto3_conn_double.mock_calls) == 1), "multiple boto connections used unexpectedly"
assert(len(lambda_client_double.update_function_configuration.mock_calls) > 0), \
"failed to update lambda function when configuration changed"
assert(len(fake_lambda_connection.update_function_configuration.mock_calls) < 2), \
assert(len(lambda_client_double.update_function_configuration.mock_calls) < 2), \
"lambda function update called multiple times when only one time should be needed"
assert(len(fake_lambda_connection.update_function_code.mock_calls) == 0), \
assert(len(lambda_client_double.update_function_code.mock_calls) == 0), \
"updated lambda code when no change should have happened"
def test_dont_update_lambda_if_nothing_changed():
@pytest.mark.skip(reason='test broken, fails when run in isolation')
def test_dont_update_lambda_if_nothing_changed(monkeypatch):
set_module_args(base_module_args)
(boto3_conn_double,lambda_client_double)=make_mock_connection(base_lambda_config)
fake_lambda_connection = MagicMock()
fake_lambda_connection.get_function.configure_mock(
return_value={
'Configuration' : base_start_function_config_in_aws
}
)
fake_lambda_connection.update_function_configuration.configure_mock(
return_value={
'Version' : 1
}
)
fake_boto3_conn=Mock(return_value=fake_lambda_connection)
@patch("ansible.modules.cloud.amazon.lambda.boto3_conn", fake_boto3_conn)
def call_module():
with pytest.raises(SystemExit):
with patch.object(lda, 'boto3_conn', boto3_conn_double):
try:
lda.main()
call_module()
except SystemExit:
pass
# guard against calling other than for a lambda connection (e.g. IAM)
assert(len(fake_boto3_conn.mock_calls) == 1), "multiple boto connections used unexpectedly"
assert(len(fake_lambda_connection.update_function_configuration.mock_calls) == 0), \
assert(len(boto3_conn_double.mock_calls) == 1), "multiple boto connections used unexpectedly"
assert(len(lambda_client_double.update_function_configuration.mock_calls) == 0), \
"updated lambda function when no configuration changed"
assert(len(fake_lambda_connection.update_function_code.mock_calls) == 0 ), \
assert(len(lambda_client_double.update_function_code.mock_calls) == 0 ), \
"updated lambda code when no change should have happened"
def test_warn_region_not_specified():
@ -220,20 +192,12 @@ def test_warn_region_not_specified():
"role": 'arn:aws:iam::987654321012:role/lambda_basic_execution',
"handler": 'lambda_python.my_handler'})
class AnsibleFailJson(Exception):
pass
get_aws_connection_info_double=Mock(return_value=(None,None,None))
def fail_json(*args, **kwargs):
kwargs['failed'] = True
raise AnsibleFailJson(kwargs)
def call_module():
with patch.object(basic.AnsibleModule, 'fail_json', fail_json):
with patch.object(lda, 'get_aws_connection_info', get_aws_connection_info_double):
with patch.object(basic.AnsibleModule, 'fail_json', fail_json_double):
try:
lda.main()
except AnsibleFailJson as e:
result = e.args[0]
assert("region must be specified" in result['msg'])
call_module()