-
Notifications
You must be signed in to change notification settings - Fork 4
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Updated tests to run the ESR more like the real world
Also added a few extra checks and testability things to the ESR
- Loading branch information
Showing
9 changed files
with
617 additions
and
360 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,3 +1,4 @@ | ||
| mock | ||
| pytest | ||
| pytest-cov | ||
| mongomock |
124 changes: 124 additions & 0 deletions
124
projects/etos_suite_runner/tests/library/fake_database.py
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| # Copyright Axis Communications AB. | ||
| # | ||
| # For a full list of individual contributors, please see the commit history. | ||
| # | ||
| # 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. | ||
| """Fake database library helpers.""" | ||
| from queue import Queue | ||
| from threading import Event, RLock, Timer | ||
| from typing import Any, Iterator, Optional | ||
|
|
||
| from etcd3gw.lease import Lease | ||
|
|
||
| # pylint:disable=unused-argument | ||
|
|
||
|
|
||
| class FakeDatabase: | ||
| """A fake database that follows the etcd client.""" | ||
|
|
||
| lock = RLock() | ||
|
|
||
| def __init__(self): | ||
| """Initialize fake reader and writer.""" | ||
| self.db_dict = {} | ||
| self.expire = [] | ||
| self.leases = {} | ||
| self.watchers = [] | ||
|
|
||
| def __call__(self): | ||
| """Database instantiation faker.""" | ||
| return self | ||
|
|
||
| def watch(self, path: str, range_end: Optional[str] = None) -> (Event, Iterator[dict]): | ||
| """Watch for changes of a path.""" | ||
| canceled = Event() | ||
| queue = Queue() | ||
|
|
||
| def cancel(): | ||
| canceled.set() | ||
| queue.put(None) | ||
|
|
||
| def iterator(): | ||
| self.watchers.append(queue) | ||
| try: | ||
| while not canceled.is_set(): | ||
| event = queue.get() | ||
| if event is None: | ||
| canceled.set() | ||
| if not canceled.is_set(): | ||
| yield event | ||
| finally: | ||
| self.watchers.remove(queue) | ||
|
|
||
| return iterator(), cancel | ||
|
|
||
| def __event(self, event: dict) -> None: | ||
| """Send an event to all watchers.""" | ||
| for watcher in self.watchers: | ||
| watcher.put_nowait(event) | ||
|
|
||
| def put(self, item: str, value: Any, lease: Optional[Lease] = None) -> None: | ||
| """Put an item into database.""" | ||
| with self.lock: | ||
| self.db_dict.setdefault(item, []) | ||
| if lease is not None: | ||
| self.leases[item] = lease | ||
| timer = Timer(self.expire[lease.id], self.delete, args=(item,)) | ||
| timer.daemon = True | ||
| timer.start() | ||
| self.db_dict[item].append(str(value).encode()) | ||
| self.__event({"kv": {"key": item.encode(), "value": str(value).encode()}}) | ||
|
|
||
| def lease(self, ttl=30) -> Lease: | ||
| """Create a lease.""" | ||
| with self.lock: | ||
| self.expire.append(ttl) | ||
| # ttl is unused since we do not actually make the post request that the regular | ||
| # etcd client does. First argument to `Lease` is the ID that was returned by the | ||
| # etcd server. | ||
| return Lease(len(self.expire) - 1) | ||
|
|
||
| def get(self, path: str) -> list[bytes]: | ||
| """Get an item from database.""" | ||
| if isinstance(path, bytes): | ||
| path = path.decode() | ||
| with self.lock: | ||
| return list(reversed(self.db_dict.get(path, []))) | ||
|
|
||
| def get_prefix(self, prefix: str) -> list[tuple[bytes, dict]]: | ||
| """Get items based on prefix.""" | ||
| if isinstance(prefix, bytes): | ||
| prefix = prefix.decode() | ||
| paths = [] | ||
| with self.lock: | ||
| for key, value in self.db_dict.items(): | ||
| if key.startswith(prefix): | ||
| paths.append((value[-1], {"key": key.encode()})) | ||
| return paths | ||
|
|
||
| def delete(self, path: str) -> None: | ||
| """Delete a single item.""" | ||
| with self.lock: | ||
| del self.db_dict[path] | ||
| if self.leases.get(path): | ||
| self.expire.pop(self.leases.get(path).id) | ||
| del self.leases[path] | ||
| self.__event({"kv": {"key": path.encode()}, "type": "DELETE"}) | ||
|
|
||
| def delete_prefix(self, prefix: str) -> None: | ||
| """Delete items based on prefix.""" | ||
| with self.lock: | ||
| db_dict = self.db_dict.copy() | ||
| for key in db_dict: | ||
| if key.startswith(prefix): | ||
| self.delete(key) |
Oops, something went wrong.