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flake_checker_test.py
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# Copyright 2020 The Oppia Authors. 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.
"""Unit tests for scripts/flake_checker.py."""
from __future__ import annotations
import datetime
import os
from core.tests import test_utils
from scripts import flake_checker
import requests
class CheckIfOnCITests(test_utils.GenericTestBase):
def test_returns_true_when_on_ci(self):
def mock_getenv(variable):
return variable == 'CIRCLECI'
getenv_swap = self.swap_with_checks(
os, 'getenv', mock_getenv, expected_args=[
('GITHUB_ACTIONS',),
('CIRCLECI',),
])
with getenv_swap:
on_ci = flake_checker.check_if_on_ci()
self.assertTrue(on_ci)
def test_returns_false_when_off_ci(self):
def mock_getenv(unused_variable):
return False
getenv_swap = self.swap_with_checks(
os, 'getenv', mock_getenv, expected_args=[
('GITHUB_ACTIONS',),
('CIRCLECI',),
])
with getenv_swap:
on_ci = flake_checker.check_if_on_ci()
self.assertFalse(on_ci)
class MockDatetime:
def __init__(self, date):
self.date = date
def utcnow(self):
"""Get datetime.datetime object."""
return self.date
class ReportPassTests(test_utils.GenericTestBase):
def setUp(self):
super(ReportPassTests, self).setUp()
self.example_date = datetime.datetime(2020, 1, 1, 0, 0, 0, 1)
def test_successful_report(self):
def mock_getenv(variable):
environment_vars = {
'CIRCLECI': 1,
'CIRCLE_USERNAME': 'user',
'CIRCLE_BUILD_URL': 'https://example.com',
'CIRCLE_BRANCH': 'develop',
}
return environment_vars.get(variable)
def mock_post(url, json, allow_redirects, headers): # pylint: disable=unused-argument
pass
expected_payload = {
'suite': 'suiteName',
'metadata': {
'username': 'user',
'build_url': 'https://example.com',
'timestamp': '2020-01-01T00:00:00.000001+00:00',
'branch': 'develop',
}
}
getenv_swap = self.swap(os, 'getenv', mock_getenv)
datetime_swap = self.swap(
datetime, 'datetime', MockDatetime(self.example_date))
post_swap = self.swap_with_checks(
requests, 'post', mock_post, expected_args=[
(flake_checker.PASS_REPORT_URL,)],
expected_kwargs=[{
'json': expected_payload,
'allow_redirects': False,
'headers': {
'report_key': flake_checker.REPORT_API_KEY
},
}])
with getenv_swap, datetime_swap, post_swap:
flake_checker.report_pass('suiteName')
def test_successful_report_construct_url(self):
def mock_getenv(variable):
environment_vars = {
'GITHUB_ACTIONS': 1,
'GITHUB_ACTOR': 'user',
'GITHUB_RUN_ID': 1234,
'GITHUB_REF': 'develop',
'GITHUB_REPOSITORY': 'foo/oppia',
}
return environment_vars.get(variable)
def mock_post(url, json, allow_redirects, headers): # pylint: disable=unused-argument
pass
expected_payload = {
'suite': 'suiteName',
'metadata': {
'username': 'user',
'build_url': 'https://github.com/foo/oppia/actions/runs/1234',
'timestamp': '2020-01-01T00:00:00.000001+00:00',
'branch': 'develop',
}
}
getenv_swap = self.swap(os, 'getenv', mock_getenv)
datetime_swap = self.swap(
datetime, 'datetime', MockDatetime(self.example_date))
post_swap = self.swap_with_checks(
requests, 'post', mock_post, expected_args=[
(flake_checker.PASS_REPORT_URL,)],
expected_kwargs=[{
'json': expected_payload,
'allow_redirects': False,
'headers': {
'report_key': flake_checker.REPORT_API_KEY
},
}])
with getenv_swap, datetime_swap, post_swap:
flake_checker.report_pass('suiteName')
def test_unsuccessful_report(self):
def mock_getenv(variable):
environment_vars = {
'CIRCLECI': 1,
'CIRCLE_USERNAME': 'user',
'CIRCLE_BUILD_URL': 'https://example.com',
'CIRCLE_BRANCH': 'develop',
}
return environment_vars.get(variable)
def mock_post(url, json, allow_redirects, headers): # pylint: disable=unused-argument
raise requests.HTTPError()
expected_payload = {
'suite': 'suiteName',
'metadata': {
'username': 'user',
'build_url': 'https://example.com',
'timestamp': '2020-01-01T00:00:00.000001+00:00',
'branch': 'develop',
},
}
getenv_swap = self.swap(os, 'getenv', mock_getenv)
datetime_swap = self.swap(
datetime, 'datetime', MockDatetime(self.example_date))
post_swap = self.swap_with_checks(
requests, 'post', mock_post, expected_args=[
(flake_checker.PASS_REPORT_URL,)],
expected_kwargs=[{
'json': expected_payload,
'allow_redirects': False,
'headers': {
'report_key': flake_checker.REPORT_API_KEY,
},
}])
with getenv_swap, datetime_swap, post_swap:
flake_checker.report_pass('suiteName')
def test_unknown_build_environment(self):
def mock_getenv(variable):
environment_vars = {}
return environment_vars.get(variable)
def mock_post(url, json, allow_redirects, headers): # pylint: disable=unused-argument
raise AssertionError('requests.post called.')
getenv_swap = self.swap(os, 'getenv', mock_getenv)
post_swap = self.swap(requests, 'post', mock_post)
with getenv_swap, post_swap:
with self.assertRaisesRegexp(
Exception, 'Unknown build environment.'):
flake_checker.report_pass('suiteName')
def test_missing_environment_variable(self):
def mock_getenv(variable):
environment_vars = {
'CIRCLECI': 1,
'CIRCLE_USERNAME': 'user',
'CIRCLE_BRANCH': 'develop',
}
return environment_vars.get(variable)
def mock_post(url, json, allow_redirects, headers): # pylint: disable=unused-argument
raise AssertionError('requests.post called.')
getenv_swap = self.swap(os, 'getenv', mock_getenv)
post_swap = self.swap(requests, 'post', mock_post)
with getenv_swap, post_swap:
with self.assertRaisesRegexp(
RuntimeError,
'Expected environment variable CIRCLE_BUILD_URL missing'):
flake_checker.report_pass('suiteName')
class MockResponse:
def __init__(
self, ok=True, json=None, status_code=200, reason='foo'):
if json is None:
json = {}
self.ok = ok
self.json_dict = json
self.status_code = status_code
self.reason = reason
def json(self):
"""Get json dict or raise ValueError if json_dict not a dict."""
if not isinstance(self.json_dict, dict):
raise ValueError('Payload not JSON.')
return self.json_dict
class IsTestOutputFlakyTests(test_utils.GenericTestBase):
def setUp(self):
super(IsTestOutputFlakyTests, self).setUp()
self.example_date = datetime.datetime(2020, 1, 1, 0, 0, 0, 1)
def test_successful_report(self):
def mock_getenv(variable):
environment_vars = {
'CIRCLECI': 1,
'CIRCLE_USERNAME': 'user',
'CIRCLE_BUILD_URL': 'https://example.com',
'CIRCLE_BRANCH': 'develop',
}
return environment_vars.get(variable)
def mock_post(url, json, allow_redirects, headers): # pylint: disable=unused-argument
response = {
'log': ['log1', 'log2'],
'result': True,
'flake': {
'suite': 'suiteName',
'test': 'testName',
'flake_id': 'flake',
},
}
return MockResponse(True, response)
expected_payload = {
'suite': 'suiteName',
'output_lines': ['line1', 'line2'],
'metadata': {
'username': 'user',
'build_url': 'https://example.com',
'timestamp': '2020-01-01T00:00:00.000001+00:00',
'branch': 'develop',
}
}
getenv_swap = self.swap(os, 'getenv', mock_getenv)
datetime_swap = self.swap(
datetime, 'datetime', MockDatetime(self.example_date))
post_swap = self.swap_with_checks(
requests, 'post', mock_post, expected_args=[
(flake_checker.FLAKE_CHECK_AND_REPORT_URL,)],
expected_kwargs=[{
'json': expected_payload,
'allow_redirects': False,
'headers': {
'report_key': flake_checker.REPORT_API_KEY
},
}])
with getenv_swap, datetime_swap, post_swap:
flaky = flake_checker.is_test_output_flaky(
['line1', 'line2'], 'suiteName')
self.assertTrue(flaky)
def test_successful_report_construct_url(self):
def mock_getenv(variable):
environment_vars = {
'GITHUB_ACTIONS': 1,
'GITHUB_ACTOR': 'user',
'GITHUB_RUN_ID': 1234,
'GITHUB_REF': 'develop',
'GITHUB_REPOSITORY': 'foo/oppia'
}
return environment_vars.get(variable)
def mock_post(url, json, allow_redirects, headers): # pylint: disable=unused-argument
response = {
'log': ['log1', 'log2'],
'result': True,
'flake': {
'suite': 'suiteName',
'test': 'testName',
'flake_id': 'flake',
},
}
return MockResponse(True, response)
expected_payload = {
'suite': 'suiteName',
'output_lines': ['line1', 'line2'],
'metadata': {
'username': 'user',
'build_url': 'https://github.com/foo/oppia/actions/runs/1234',
'timestamp': '2020-01-01T00:00:00.000001+00:00',
'branch': 'develop',
}
}
getenv_swap = self.swap(os, 'getenv', mock_getenv)
datetime_swap = self.swap(
datetime, 'datetime', MockDatetime(self.example_date))
post_swap = self.swap_with_checks(
requests, 'post', mock_post, expected_args=[
(flake_checker.FLAKE_CHECK_AND_REPORT_URL,)],
expected_kwargs=[{
'json': expected_payload,
'allow_redirects': False,
'headers': {
'report_key': flake_checker.REPORT_API_KEY
},
}])
with getenv_swap, datetime_swap, post_swap:
flaky = flake_checker.is_test_output_flaky(
['line1', 'line2'], 'suiteName')
self.assertTrue(flaky)
def test_unsuccessful_report_exception(self):
def mock_getenv(variable):
environment_vars = {
'CIRCLECI': 1,
'CIRCLE_USERNAME': 'user',
'CIRCLE_BUILD_URL': 'https://example.com',
'CIRCLE_BRANCH': 'develop',
}
return environment_vars.get(variable)
def mock_post(url, json, allow_redirects, headers): # pylint: disable=unused-argument
raise requests.HTTPError()
expected_payload = {
'suite': 'suiteName',
'output_lines': ['line1', 'line2'],
'metadata': {
'username': 'user',
'build_url': 'https://example.com',
'timestamp': '2020-01-01T00:00:00.000001+00:00',
'branch': 'develop',
},
}
getenv_swap = self.swap(os, 'getenv', mock_getenv)
datetime_swap = self.swap(
datetime, 'datetime', MockDatetime(self.example_date))
post_swap = self.swap_with_checks(
requests, 'post', mock_post, expected_args=[
(flake_checker.FLAKE_CHECK_AND_REPORT_URL,)],
expected_kwargs=[{
'json': expected_payload,
'allow_redirects': False,
'headers': {
'report_key': flake_checker.REPORT_API_KEY,
},
}])
with getenv_swap, datetime_swap, post_swap:
flaky = flake_checker.is_test_output_flaky(
['line1', 'line2'], 'suiteName')
self.assertFalse(flaky)
def test_unsuccessful_report_not_ok(self):
def mock_getenv(variable):
environment_vars = {
'CIRCLECI': 1,
'CIRCLE_USERNAME': 'user',
'CIRCLE_BUILD_URL': 'https://example.com',
'CIRCLE_BRANCH': 'develop',
}
return environment_vars.get(variable)
def mock_post(url, json, allow_redirects, headers): # pylint: disable=unused-argument
return MockResponse(False, None)
expected_payload = {
'suite': 'suiteName',
'output_lines': ['line1', 'line2'],
'metadata': {
'username': 'user',
'build_url': 'https://example.com',
'timestamp': '2020-01-01T00:00:00.000001+00:00',
'branch': 'develop',
},
}
getenv_swap = self.swap(os, 'getenv', mock_getenv)
datetime_swap = self.swap(
datetime, 'datetime', MockDatetime(self.example_date))
post_swap = self.swap_with_checks(
requests, 'post', mock_post, expected_args=[
(flake_checker.FLAKE_CHECK_AND_REPORT_URL,)],
expected_kwargs=[{
'json': expected_payload,
'allow_redirects': False,
'headers': {
'report_key': flake_checker.REPORT_API_KEY,
},
}])
with getenv_swap, datetime_swap, post_swap:
flaky = flake_checker.is_test_output_flaky(
['line1', 'line2'], 'suiteName')
self.assertFalse(flaky)
def test_unsuccessful_report_bad_payload(self):
def mock_getenv(variable):
environment_vars = {
'CIRCLECI': 1,
'CIRCLE_USERNAME': 'user',
'CIRCLE_BUILD_URL': 'https://example.com',
'CIRCLE_BRANCH': 'develop',
}
return environment_vars.get(variable)
def mock_post(url, json, allow_redirects, headers): # pylint: disable=unused-argument
return MockResponse(True, 'not json')
expected_payload = {
'suite': 'suiteName',
'output_lines': ['line1', 'line2'],
'metadata': {
'username': 'user',
'build_url': 'https://example.com',
'timestamp': '2020-01-01T00:00:00.000001+00:00',
'branch': 'develop',
},
}
getenv_swap = self.swap(os, 'getenv', mock_getenv)
datetime_swap = self.swap(
datetime, 'datetime', MockDatetime(self.example_date))
post_swap = self.swap_with_checks(
requests, 'post', mock_post, expected_args=[
(flake_checker.FLAKE_CHECK_AND_REPORT_URL,)],
expected_kwargs=[{
'json': expected_payload,
'allow_redirects': False,
'headers': {
'report_key': flake_checker.REPORT_API_KEY,
},
}])
with getenv_swap, datetime_swap, post_swap:
flaky = flake_checker.is_test_output_flaky(
['line1', 'line2'], 'suiteName')
self.assertFalse(flaky)