Merge pull request #3 from lbryio/lbrynet-service-integration

Activates Comment Deletion functionality + adds & fixes a ton of stuff

config/conf.json

@@ -1,10 +1,7 @@
 {
   "PATH": {
     "SCHEMA": "src/schema/comments_ddl.sql",
-    "MAIN": "database/comments.db",
+    "DATABASE": "database/comments.db",
-    "BACKUP": "database/comments.backup.db",
-    "DEFAULT": "database/default.db",
-    "TEST": "tests/test.db",
     "ERROR_LOG": "logs/error.log",
     "DEBUG_LOG": "logs/debug.log",
     "SERVER_LOG": "logs/server.log"

scripts/concurrency_test.py

@@ -0,0 +1,34 @@
+import unittest
+from multiprocessing.pool import Pool
+
+import requests
+
+
+class ConcurrentWriteTest(unittest.TestCase):
+
+    @staticmethod
+    def make_comment(num):
+        return {
+            'jsonrpc': '2.0',
+            'id': num,
+            'method': 'create_comment',
+            'params': {
+                'comment': f'Comment #{num}',
+                'claim_id': '6d266af6c25c80fa2ac6cc7662921ad2e90a07e7',
+            }
+        }
+
+    @staticmethod
+    def send_comment_to_server(params):
+        with requests.post(params[0], json=params[1]) as req:
+            return req.json()
+
+    def test01Concurrency(self):
+        urls = [f'http://localhost:{port}/api' for port in range(5921, 5925)]
+        comments = [self.make_comment(i) for i in range(1, 5)]
+        inputs = list(zip(urls, comments))
+        with Pool(4) as pool:
+            results = pool.map(self.send_comment_to_server, inputs)
+        results = list(filter(lambda x: 'comment_id' in x['result'], results))
+        self.assertIsNotNone(results)
+        self.assertEqual(len(results), len(inputs))

src/main.py

@@ -17,7 +17,7 @@ def config_logging_from_settings(conf):
                 "datefmt": conf['LOGGING']['DATEFMT']
             },
             "aiohttp": {
-                "format":  conf['LOGGING']['AIOHTTP_FORMAT'],
+                "format": conf['LOGGING']['AIOHTTP_FORMAT'],
                 "datefmt": conf['LOGGING']['DATEFMT']
             }
         },
@@ -75,6 +75,7 @@ def main(argv=None):
     parser = argparse.ArgumentParser(description='LBRY Comment Server')
     parser.add_argument('--port', type=int)
     args = parser.parse_args(argv)
+    config_logging_from_settings(config)
     if args.port:
         config['PORT'] = args.port
     config_logging_from_settings(config)

src/schema/comments_ddl.sql

@@ -1,4 +1,3 @@
-
 PRAGMA FOREIGN_KEYS = ON;
 
 -- tables
@@ -6,29 +5,31 @@ PRAGMA FOREIGN_KEYS = ON;
 -- DROP TABLE IF EXISTS CHANNEL;
 
 -- DROP TABLE IF EXISTS COMMENT;
-CREATE TABLE IF NOT EXISTS COMMENT (
+CREATE TABLE IF NOT EXISTS COMMENT
+(
     CommentId   TEXT    NOT NULL,
     LbryClaimId TEXT    NOT NULL,
-    ChannelId   TEXT                DEFAULT NULL,
+    ChannelId   TEXT DEFAULT NULL,
     Body        TEXT    NOT NULL,
-    ParentId    TEXT                DEFAULT NULL,
+    ParentId    TEXT DEFAULT NULL,
-    Signature   TEXT                DEFAULT NULL,
+    Signature   TEXT DEFAULT NULL,
     Timestamp   INTEGER NOT NULL,
-    SigningTs   TEXT                DEFAULT NULL,
+    SigningTs   TEXT DEFAULT NULL,
     CONSTRAINT COMMENT_PRIMARY_KEY PRIMARY KEY (CommentId) ON CONFLICT IGNORE,
     CONSTRAINT COMMENT_SIGNATURE_SK UNIQUE (Signature) ON CONFLICT ABORT,
-    CONSTRAINT COMMENT_CHANNEL_FK FOREIGN KEY (ChannelId) REFERENCES CHANNEL(ClaimId)
+    CONSTRAINT COMMENT_CHANNEL_FK FOREIGN KEY (ChannelId) REFERENCES CHANNEL (ClaimId)
         ON DELETE NO ACTION ON UPDATE NO ACTION,
-    CONSTRAINT COMMENT_PARENT_FK FOREIGN KEY (ParentId) REFERENCES COMMENT(CommentId)
+    CONSTRAINT COMMENT_PARENT_FK FOREIGN KEY (ParentId) REFERENCES COMMENT (CommentId)
-        ON UPDATE CASCADE ON DELETE NO ACTION  -- setting null implies comment is top level
+        ON UPDATE CASCADE ON DELETE NO ACTION -- setting null implies comment is top level
 );
 
 -- ALTER TABLE COMMENT ADD COLUMN SigningTs TEXT DEFAULT NULL;
 
 -- DROP TABLE IF EXISTS CHANNEL;
-CREATE TABLE IF NOT EXISTS CHANNEL(
+CREATE TABLE IF NOT EXISTS CHANNEL
-    ClaimId     TEXT    NOT NULL,
+(
-    Name        TEXT    NOT NULL,
+    ClaimId TEXT NOT NULL,
+    Name    TEXT NOT NULL,
     CONSTRAINT CHANNEL_PK PRIMARY KEY (ClaimId)
         ON CONFLICT IGNORE
 );
@@ -38,26 +39,37 @@ CREATE TABLE IF NOT EXISTS CHANNEL(
 -- DROP INDEX IF EXISTS COMMENT_CLAIM_INDEX;
 CREATE INDEX IF NOT EXISTS CLAIM_COMMENT_INDEX ON COMMENT (LbryClaimId, CommentId);
 
-CREATE INDEX IF NOT EXISTS CHANNEL_COMMENT_INDEX ON COMMENT(ChannelId, CommentId);
+CREATE INDEX IF NOT EXISTS CHANNEL_COMMENT_INDEX ON COMMENT (ChannelId, CommentId);
 
 -- VIEWS
 DROP VIEW IF EXISTS COMMENTS_ON_CLAIMS;
-CREATE VIEW IF NOT EXISTS COMMENTS_ON_CLAIMS (comment_id, claim_id, timestamp, channel_name, channel_id, channel_url, signature, signing_ts, parent_id, comment) AS
+CREATE VIEW IF NOT EXISTS COMMENTS_ON_CLAIMS (comment_id, claim_id, timestamp, channel_name, channel_id, channel_url,
-    SELECT C.CommentId, C.LbryClaimId, C.Timestamp, CHAN.Name, CHAN.ClaimId, 'lbry://' || CHAN.Name || '#' || CHAN.ClaimId, C.Signature, C.SigningTs, C.ParentId, C.Body
+                                              signature, signing_ts, parent_id, comment) AS
-    FROM COMMENT AS C
+SELECT C.CommentId,
-    LEFT OUTER JOIN CHANNEL CHAN on C.ChannelId = CHAN.ClaimId
+       C.LbryClaimId,
-    ORDER BY C.Timestamp DESC;
+       C.Timestamp,
+       CHAN.Name,
+       CHAN.ClaimId,
+       'lbry://' || CHAN.Name || '#' || CHAN.ClaimId,
+       C.Signature,
+       C.SigningTs,
+       C.ParentId,
+       C.Body
+FROM COMMENT AS C
+         LEFT OUTER JOIN CHANNEL CHAN on C.ChannelId = CHAN.ClaimId
+ORDER BY C.Timestamp DESC;
 
 
 
 DROP VIEW IF EXISTS COMMENT_REPLIES;
 CREATE VIEW IF NOT EXISTS COMMENT_REPLIES (Author, CommentBody, ParentAuthor, ParentCommentBody) AS
-    SELECT AUTHOR.Name, OG.Body, PCHAN.Name, PARENT.Body FROM COMMENT AS OG
+SELECT AUTHOR.Name, OG.Body, PCHAN.Name, PARENT.Body
-        JOIN  COMMENT AS PARENT
+FROM COMMENT AS OG
-        ON OG.ParentId = PARENT.CommentId
+         JOIN COMMENT AS PARENT
-        JOIN CHANNEL AS PCHAN ON PARENT.ChannelId = PCHAN.ClaimId
+              ON OG.ParentId = PARENT.CommentId
-        JOIN CHANNEL AS AUTHOR ON OG.ChannelId = AUTHOR.ClaimId
+         JOIN CHANNEL AS PCHAN ON PARENT.ChannelId = PCHAN.ClaimId
-        ORDER BY OG.Timestamp;
+         JOIN CHANNEL AS AUTHOR ON OG.ChannelId = AUTHOR.ClaimId
+ORDER BY OG.Timestamp;
 
 -- this is the default channel for anyone who wants to publish anonymously
 -- INSERT INTO CHANNEL

src/server/app.py

@@ -1,7 +1,6 @@
 # cython: language_level=3
 import logging
 import pathlib
-import re
 import signal
 import time
 
@@ -25,11 +24,6 @@ async def setup_db_schema(app):
         logger.info(f'Database already exists in {app["db_path"]}, skipping setup')
 
 
-async def close_comment_scheduler(app):
-    logger.info('Closing comment_scheduler')
-    await app['comment_scheduler'].close()
-
-
 async def database_backup_routine(app):
     try:
         while True:
@@ -43,29 +37,41 @@ async def database_backup_routine(app):
 
 async def start_background_tasks(app):
     app['reader'] = obtain_connection(app['db_path'], True)
-    app['waitful_backup'] = app.loop.create_task(database_backup_routine(app))
+    app['waitful_backup'] = asyncio.create_task(database_backup_routine(app))
     app['comment_scheduler'] = await aiojobs.create_scheduler(limit=1, pending_limit=0)
     app['db_writer'] = DatabaseWriter(app['db_path'])
     app['writer'] = app['db_writer'].connection
 
 
-async def stop_background_tasks(app):
+async def close_database_connections(app):
     logger.info('Ending background backup loop')
     app['waitful_backup'].cancel()
     await app['waitful_backup']
     app['reader'].close()
     app['writer'].close()
+    app['db_writer'].cleanup()
+
+
+async def close_comment_scheduler(app):
+    logger.info('Closing comment_scheduler')
+    await app['comment_scheduler'].close()
 
 
 class CommentDaemon:
-    def __init__(self, config, db_path=None, **kwargs):
+    def __init__(self, config, db_file=None, backup=None, **kwargs):
         self.config = config
         app = web.Application()
-        self.insert_to_config(app, config, db_file=db_path)
+        app['config'] = config
+        if db_file:
+            app['db_path'] = db_file
+            app['backup'] = backup
+        else:
+            app['db_path'] = config['PATH']['DATABASE']
+            app['backup'] = backup or (app['db_path'] + '.backup')
         app.on_startup.append(setup_db_schema)
         app.on_startup.append(start_background_tasks)
-        app.on_shutdown.append(stop_background_tasks)
         app.on_shutdown.append(close_comment_scheduler)
+        app.on_cleanup.append(close_database_connections)
         aiojobs.aiohttp.setup(app, **kwargs)
         app.add_routes([
             web.post('/api', api_endpoint),
@@ -73,38 +79,30 @@ class CommentDaemon:
             web.get('/api', get_api_endpoint)
         ])
         self.app = app
-        self.app_runner = web.AppRunner(app)
+        self.app_runner = None
         self.app_site = None
 
-    async def start(self):
+    async def start(self, host=None, port=None):
         self.app['START_TIME'] = time.time()
+        self.app_runner = web.AppRunner(self.app)
         await self.app_runner.setup()
         self.app_site = web.TCPSite(
             runner=self.app_runner,
-            host=self.config['HOST'],
+            host=host or self.config['HOST'],
-            port=self.config['PORT'],
+            port=port or self.config['PORT'],
         )
         await self.app_site.start()
         logger.info(f'Comment Server is running on {self.config["HOST"]}:{self.config["PORT"]}')
 
     async def stop(self):
-        await self.app.shutdown()
+        await self.app_runner.shutdown()
-        await self.app.cleanup()
         await self.app_runner.cleanup()
 
-    @staticmethod
-    def insert_to_config(app, conf=None, db_file=None):
-        db_file = db_file if db_file else 'DEFAULT'
-        app['config'] = conf
-        app['db_path'] = conf['PATH'][db_file]
-        app['backup'] = re.sub(r'\.db$', '.backup.db', app['db_path'])
-        assert app['db_path'] != app['backup']
 
+def run_app(config, db_file=None):
+    comment_app = CommentDaemon(config=config, db_file=db_file, close_timeout=5.0)
 
-def run_app(config):
+    loop = asyncio.get_event_loop()
-    comment_app = CommentDaemon(config=config, db_path='DEFAULT', close_timeout=5.0)
-
-    loop =  asyncio.get_event_loop()
 
     def __exit():
         raise web.GracefulExit()

src/server/database.py

@@ -31,14 +31,14 @@ def get_claim_comments(conn: sqlite3.Connection, claim_id: str, parent_id: str =
                     FROM COMMENTS_ON_CLAIMS 
                     WHERE claim_id = ? AND parent_id IS NULL
                     LIMIT ? OFFSET ? """,
-                (claim_id, page_size, page_size*(page - 1))
+                (claim_id, page_size, page_size * (page - 1))
             )]
             count = conn.execute(
                 """
                 SELECT COUNT(*)
                 FROM COMMENTS_ON_CLAIMS
                 WHERE claim_id = ? AND parent_id IS NULL
-                """, (claim_id, )
+                """, (claim_id,)
             )
         elif parent_id is None:
             results = [clean(dict(row)) for row in conn.execute(
@@ -47,7 +47,7 @@ def get_claim_comments(conn: sqlite3.Connection, claim_id: str, parent_id: str =
                     FROM COMMENTS_ON_CLAIMS 
                     WHERE claim_id = ? 
                     LIMIT ? OFFSET ? """,
-                (claim_id, page_size, page_size*(page - 1))
+                (claim_id, page_size, page_size * (page - 1))
             )]
             count = conn.execute(
                 """
@@ -63,7 +63,7 @@ def get_claim_comments(conn: sqlite3.Connection, claim_id: str, parent_id: str =
                     FROM COMMENTS_ON_CLAIMS 
                     WHERE claim_id = ? AND parent_id = ?
                     LIMIT ? OFFSET ? """,
-                (claim_id, parent_id, page_size, page_size*(page - 1))
+                (claim_id, parent_id, page_size, page_size * (page - 1))
             )]
             count = conn.execute(
                 """
@@ -77,7 +77,7 @@ def get_claim_comments(conn: sqlite3.Connection, claim_id: str, parent_id: str =
             'items': results,
             'page': page,
             'page_size': page_size,
-            'total_pages': math.ceil(count/page_size),
+            'total_pages': math.ceil(count / page_size),
             'total_items': count
         }
 
@@ -194,8 +194,8 @@ class DatabaseWriter(object):
 
     def cleanup(self):
         logging.info('Cleaning up database writer')
-        DatabaseWriter._writer = None
         self.conn.close()
+        DatabaseWriter._writer = None
 
     @property
     def connection(self):

src/server/handles.py

@@ -10,7 +10,6 @@ from src.server.misc import clean_input_params
 from src.server.database import get_claim_comments
 from src.server.database import get_comments_by_id, get_comment_ids
 from src.server.database import get_channel_id_from_comment_id
-from src.server.database import obtain_connection
 from src.server.misc import is_valid_base_comment
 from src.server.misc import is_valid_credential_input
 from src.server.misc import make_error
@@ -63,7 +62,7 @@ METHODS = {
     'get_comments_by_id': handle_get_comments_by_id,
     'get_channel_from_comment_id': handle_get_channel_from_comment_id,
     'create_comment': handle_create_comment,
-    # 'delete_comment': handle_delete_comment,
+    'delete_comment': handle_delete_comment,
     # 'abandon_comment': handle_delete_comment,
 }
 
@@ -75,8 +74,8 @@ async def process_json(app, body: dict) -> dict:
         params = body.get('params', {})
         clean_input_params(params)
         logger.debug(f'Received Method {method}, params: {params}')
+        start = time.time()
         try:
-            start = time.time()
             if asyncio.iscoroutinefunction(METHODS[method]):
                 result = await METHODS[method](app, params)
             else:
@@ -99,6 +98,7 @@ async def process_json(app, body: dict) -> dict:
 @atomic
 async def api_endpoint(request: web.Request):
     try:
+        web.access_logger.info(f'Forwarded headers: {request.forwarded}')
         body = await request.json()
         if type(body) is list or type(body) is dict:
             if type(body) is list:
@@ -109,8 +109,6 @@ async def api_endpoint(request: web.Request):
             else:
                 return web.json_response(await process_json(request.app, body))
     except Exception as e:
-        logger.exception(f'Exception raised by request from {request.remote}: {e}')
-        logger.debug(f'Request headers: {request.headers}')
         return make_error('INVALID_REQUEST', e)
 
 

src/server/misc.py

@@ -7,6 +7,7 @@ import hashlib
 import aiohttp
 
 import ecdsa
+from aiohttp import ClientConnectorError
 from cryptography.hazmat.backends import default_backend
 from cryptography.hazmat.primitives.serialization import load_der_public_key
 from cryptography.hazmat.primitives import hashes
@@ -20,7 +21,7 @@ ID_LIST = {'claim_id', 'parent_id', 'comment_id', 'channel_id'}
 
 ERRORS = {
     'INVALID_PARAMS': {'code': -32602, 'message': 'Invalid Method Parameter(s).'},
-    'INTERNAL': {'code': -32603, 'message': 'Internal Server Error.'},
+    'INTERNAL': {'code': -32603, 'message': 'Internal Server Error. Please notify a LBRY Administrator.'},
     'METHOD_NOT_FOUND': {'code': -32601, 'message': 'The method does not exist / is not available.'},
     'INVALID_REQUEST': {'code': -32600, 'message': 'The JSON sent is not a valid Request object.'},
     'PARSE_ERROR': {
@@ -35,31 +36,28 @@ def make_error(error, exc=None) -> dict:
     body = ERRORS[error] if error in ERRORS else ERRORS['INTERNAL']
     try:
         if exc:
-            body.update({
+            body.update({type(exc).__name__: str(exc)})
-                type(exc).__name__: str(exc)
-            })
     finally:
         return body
 
 
 async def resolve_channel_claim(app, channel_id, channel_name):
     lbry_url = f'lbry://{channel_name}#{channel_id}'
-    resolve_body = {
+    resolve_body = {'method': 'resolve', 'params': {'urls': [lbry_url]}}
-        'method': 'resolve',
+    try:
-        'params': {
+        async with aiohttp.request('POST', app['config']['LBRYNET'], json=resolve_body) as req:
-            'urls': [lbry_url, ]
+            try:
-        }
+                resp = await req.json()
-    }
+            except JSONDecodeError as jde:
-    async with aiohttp.request('POST', app['config']['LBRYNET'], json=resolve_body) as req:
+                logger.exception(jde.msg)
-        try:
+                raise Exception('JSON Decode Error in Claim Resolution')
-            resp = await req.json()
+            finally:
-        except JSONDecodeError as jde:
+                if 'result' in resp:
-            logger.exception(jde.msg)
+                    return resp['result'].get(lbry_url)
-            raise Exception('JSON Decode Error in Claim Resolution')
+                raise ValueError('claim resolution yields error', {'error': resp['error']})
-        finally:
+    except (ConnectionRefusedError, ClientConnectorError):
-            if 'result' in resp:
+        logger.critical("Connection to the LBRYnet daemon failed, make sure it's running.")
-                return resp['result'].get(lbry_url)
+        raise Exception("Server cannot verify delete signature")
-            raise ValueError('claim resolution yields error', {'error': resp['error']})
 
 
 def get_encoded_signature(signature):
@@ -85,8 +83,8 @@ def is_signature_valid(encoded_signature, signature_digest, public_key_bytes):
         public_key = load_der_public_key(public_key_bytes, default_backend())
         public_key.verify(encoded_signature, signature_digest, ec.ECDSA(Prehashed(hashes.SHA256())))
         return True
-    except (ValueError, InvalidSignature) as err:
+    except (ValueError, InvalidSignature):
-        logger.debug('Signature Valiadation Failed: %s', err)
+        logger.exception('Signature validation failed')
     return False
 
 
@@ -112,12 +110,12 @@ def is_valid_credential_input(channel_id=None, channel_name=None, signature=None
     return True
 
 
-async def is_authentic_delete_signal(app, comment_id, channel_name, channel_id, signature):
+async def is_authentic_delete_signal(app, comment_id, channel_name, channel_id, signature, signing_ts):
     claim = await resolve_channel_claim(app, channel_id, channel_name)
     if claim:
         public_key = claim['value']['public_key']
         claim_hash = binascii.unhexlify(claim['claim_id'].encode())[::-1]
-        pieces_injest = b''.join((comment_id.encode(), claim_hash))
+        pieces_injest = b''.join((signing_ts.encode(), claim_hash, comment_id.encode()))
         return is_signature_valid(
             encoded_signature=get_encoded_signature(signature),
             signature_digest=hashlib.sha256(pieces_injest).digest(),
@@ -132,4 +130,3 @@ def clean_input_params(kwargs: dict):
             kwargs[k] = v.strip()
             if k in ID_LIST:
                 kwargs[k] = v.lower()
-

src/server/writes.py

@@ -38,8 +38,8 @@ async def delete_comment(app, comment_id):
     return await coroutine(delete_comment_by_id)(app['writer'], comment_id)
 
 
-async def delete_comment_if_authorized(app, comment_id, channel_name, channel_id, signature):
+async def delete_comment_if_authorized(app, comment_id, **kwargs):
-    authorized = await is_authentic_delete_signal(app, comment_id, channel_name, channel_id, signature)
+    authorized = await is_authentic_delete_signal(app, comment_id, **kwargs)
     if not authorized:
         return {'deleted': False}
 

src/settings.py

@@ -2,7 +2,6 @@
 import json
 import pathlib
 
-
 root_dir = pathlib.Path(__file__).parent.parent
 config_path = root_dir / 'config' / 'conf.json'
 

tests/server_test.py

@@ -1,6 +1,9 @@
+import atexit
+import os
 import unittest
 from multiprocessing.pool import Pool
-
+import asyncio
+import aiohttp
 import requests
 import re
 from itertools import *
@@ -10,7 +13,10 @@ from faker.providers import internet
 from faker.providers import lorem
 from faker.providers import misc
 
-from settings import config
+from src.settings import config
+from src.server import app
+from tests.testcase import AsyncioTestCase
+
 
 fake = faker.Faker()
 fake.add_provider(internet)
@@ -22,14 +28,15 @@ def fake_lbryusername():
     return '@' + fake.user_name()
 
 
-def jsonrpc_post(url, method, **params):
+async def jsonrpc_post(url, method, **params):
     json_body = {
         'jsonrpc': '2.0',
         'id': None,
         'method': method,
         'params': params
     }
-    return requests.post(url=url, json=json_body)
+    async with aiohttp.request('POST', url, json=json_body) as request:
+        return await request.json()
 
 
 def nothing():
@@ -52,19 +59,26 @@ def create_test_comments(values: iter, **default):
             for comb in vars_combo]
 
 
-class ServerTest(unittest.TestCase):
+class ServerTest(AsyncioTestCase):
+    db_file = 'test.db'
+
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.url = 'http://' + config['HOST'] + ':5921/api'
 
-    def post_comment(self, **params):
+    @classmethod
-        json_body = {
+    def tearDownClass(cls) -> None:
-            'jsonrpc': '2.0',
+        print('exit reached')
-            'id': None,
+        os.remove(cls.db_file)
-            'method': 'create_comment',
+
-            'params': params
+    async def asyncSetUp(self):
-        }
+        await super().asyncSetUp()
-        return requests.post(url=self.url, json=json_body)
+        self.server = app.CommentDaemon(config, db_file=self.db_file)
+        await self.server.start()
+        self.addCleanup(self.server.stop)
+
+    async def post_comment(self, **params):
+        return await jsonrpc_post(self.url, 'create_comment', **params)
 
     def is_valid_message(self, comment=None, claim_id=None, parent_id=None,
                          channel_name=None, channel_id=None, signature=None, signing_ts=None):
@@ -89,9 +103,6 @@ class ServerTest(unittest.TestCase):
             return False
         return True
 
-    def setUp(self) -> None:
-        self.reply_id = 'ace7800f36e55c74c4aa6a698f97a7ee5f1ccb047b5a0730960df90e58c41dc2'
-
     @staticmethod
     def valid_channel_name(channel_name):
         return re.fullmatch(
@@ -100,7 +111,7 @@ class ServerTest(unittest.TestCase):
             channel_name
         )
 
-    def test01CreateCommentNoReply(self):
+    async def test01CreateCommentNoReply(self):
         anonymous_test = create_test_comments(
             ('claim_id', 'channel_id', 'channel_name', 'comment'),
             comment=None,
@@ -110,15 +121,14 @@ class ServerTest(unittest.TestCase):
         )
         for test in anonymous_test:
             with self.subTest(test=test):
-                message = self.post_comment(**test)
+                message = await self.post_comment(**test)
-                message = message.json()
                 self.assertTrue('result' in message or 'error' in message)
                 if 'error' in message:
                     self.assertFalse(self.is_valid_message(**test))
                 else:
                     self.assertTrue(self.is_valid_message(**test))
 
-    def test02CreateNamedCommentsNoReply(self):
+    async def test02CreateNamedCommentsNoReply(self):
         named_test = create_test_comments(
             ('channel_name', 'channel_id', 'signature'),
             claim_id='1234567890123456789012345678901234567890',
@@ -129,37 +139,35 @@ class ServerTest(unittest.TestCase):
         )
         for test in named_test:
             with self.subTest(test=test):
-                message = self.post_comment(**test)
+                message = await self.post_comment(**test)
-                message = message.json()
                 self.assertTrue('result' in message or 'error' in message)
                 if 'error' in message:
                     self.assertFalse(self.is_valid_message(**test))
                 else:
                     self.assertTrue(self.is_valid_message(**test))
 
-    def test03CreateAllTestComments(self):
+    async def test03CreateAllTestComments(self):
         test_all = create_test_comments(replace.keys(), **{
             k: None for k in replace.keys()
         })
         for test in test_all:
             with self.subTest(test=test):
-                message = self.post_comment(**test)
+                message = await self.post_comment(**test)
-                message = message.json()
                 self.assertTrue('result' in message or 'error' in message)
                 if 'error' in message:
                     self.assertFalse(self.is_valid_message(**test))
                 else:
                     self.assertTrue(self.is_valid_message(**test))
 
-    def test04CreateAllReplies(self):
+    async def test04CreateAllReplies(self):
         claim_id = '1d8a5cc39ca02e55782d619e67131c0a20843be8'
-        parent_comment = self.post_comment(
+        parent_comment = await self.post_comment(
             channel_name='@KevinWalterRabie',
             channel_id=fake.sha1(),
             comment='Hello everybody and welcome back to my chan nel',
             claim_id=claim_id,
         )
-        parent_id = parent_comment.json()['result']['comment_id']
+        parent_id = parent_comment['result']['comment_id']
         test_all = create_test_comments(
             ('comment', 'channel_name', 'channel_id', 'signature', 'parent_id'),
             parent_id=parent_id,
@@ -174,8 +182,7 @@ class ServerTest(unittest.TestCase):
                 if test['parent_id'] != parent_id:
                     continue
                 else:
-                    message = self.post_comment(**test)
+                    message = await self.post_comment(**test)
-                    message = message.json()
                     self.assertTrue('result' in message or 'error' in message)
                     if 'error' in message:
                         self.assertFalse(self.is_valid_message(**test))
@@ -183,7 +190,7 @@ class ServerTest(unittest.TestCase):
                         self.assertTrue(self.is_valid_message(**test))
 
 
-class ListCommentsTest(unittest.TestCase):
+class ListCommentsTest(AsyncioTestCase):
     replace = {
         'claim_id': fake.sha1,
         'comment': fake.text,
@@ -192,30 +199,35 @@ class ListCommentsTest(unittest.TestCase):
         'signature': nothing,
         'parent_id': nothing
     }
+    db_file = 'list_test.db'
+    url = 'http://localhost:5921/api'
+    comment_ids = None
+    claim_id = '1d8a5cc39ca02e55782d619e67131c0a20843be8'
 
     @classmethod
-    def post_comment(cls, **params):
+    async def post_comment(cls, **params):
-        json_body = {
+        return await jsonrpc_post(cls.url, 'create_comment', **params)
-            'jsonrpc': '2.0',
-            'id': None,
-            'method': 'create_comment',
-            'params': params
-        }
-        return requests.post(url=cls.url, json=json_body)
 
     @classmethod
-    def setUpClass(cls) -> None:
+    def tearDownClass(cls) -> None:
-        cls.url = 'http://' + config['HOST'] + ':5921/api'
+        print('exit reached')
-        cls.claim_id = '1d8a5cc39ca02e55782d619e67131c0a20843be8'
+        os.remove(cls.db_file)
-        cls.comment_list = [{key: cls.replace[key]() for key in cls.replace.keys()} for _ in range(23)]
-        for comment in cls.comment_list:
-            comment['claim_id'] = cls.claim_id
-        cls.comment_ids = [cls.post_comment(**comm).json()['result']['comment_id']
-                           for comm in cls.comment_list]
 
-    def testListComments(self):
+    async def asyncSetUp(self):
-        response_one = jsonrpc_post(self.url, 'get_claim_comments', page_size=20,
+        await super().asyncSetUp()
-                                    page=1, top_level=1, claim_id=self.claim_id).json()
+        self.server = app.CommentDaemon(config, db_file=self.db_file)
+        await self.server.start()
+        self.addCleanup(self.server.stop)
+        if self.comment_ids is None:
+            self.comment_list = [{key: self.replace[key]() for key in self.replace.keys()} for _ in range(23)]
+            for comment in self.comment_list:
+                comment['claim_id'] = self.claim_id
+            self.comment_ids = [(await self.post_comment(**comm))['result']['comment_id']
+                                for comm in self.comment_list]
+
+    async def testListComments(self):
+        response_one = await jsonrpc_post(self.url, 'get_claim_comments', page_size=20,
+                                    page=1, top_level=1, claim_id=self.claim_id)
         self.assertIsNotNone(response_one)
         self.assertIn('result', response_one)
         response_one: dict = response_one['result']
@@ -224,40 +236,11 @@ class ListCommentsTest(unittest.TestCase):
         self.assertIn('items', response_one)
         self.assertGreaterEqual(response_one['total_pages'], response_one['page'])
         last_page = response_one['total_pages']
-        response = jsonrpc_post(self.url, 'get_claim_comments', page_size=20,
+        response = await jsonrpc_post(self.url, 'get_claim_comments', page_size=20,
-                                page=last_page, top_level=1, claim_id=self.claim_id).json()
+                                page=last_page, top_level=1, claim_id=self.claim_id)
         self.assertIsNotNone(response)
         self.assertIn('result', response)
         response: dict = response['result']
         self.assertIs(type(response['items']), list)
         self.assertEqual(response['total_items'], response_one['total_items'])
         self.assertEqual(response['total_pages'], response_one['total_pages'])
-
-
-class ConcurrentWriteTest(unittest.TestCase):
-    @staticmethod
-    def make_comment(num):
-        return {
-            'jsonrpc': '2.0',
-            'id': num,
-            'method': 'create_comment',
-            'params': {
-                'comment': f'Comment #{num}',
-                'claim_id': '6d266af6c25c80fa2ac6cc7662921ad2e90a07e7',
-            }
-        }
-
-    @staticmethod
-    def send_comment_to_server(params):
-        with requests.post(params[0], json=params[1]) as req:
-            return req.json()
-
-    def test01Concurrency(self):
-        urls = [f'http://localhost:{port}/api' for port in range(5921, 5925)]
-        comments = [self.make_comment(i) for i in range(1, 5)]
-        inputs = list(zip(urls, comments))
-        with Pool(4) as pool:
-            results = pool.map(self.send_comment_to_server, inputs)
-        results = list(filter(lambda x: 'comment_id' in x['result'], results))
-        self.assertIsNotNone(results)
-        self.assertEqual(len(results), len(inputs))

tests/testcase.py

@@ -1,3 +1,4 @@
+import os
 import pathlib
 import unittest
 from asyncio.runners import _cancel_all_tasks  # type: ignore
@@ -119,15 +120,20 @@ class AsyncioTestCase(unittest.TestCase):
 
 
 class DatabaseTestCase(unittest.TestCase):
+    db_file = 'test.db'
+
+    def __init__(self, methodName='DatabaseTest'):
+        super().__init__(methodName)
+        if pathlib.Path(self.db_file).exists():
+            os.remove(self.db_file)
+
     def setUp(self) -> None:
         super().setUp()
-        if pathlib.Path(config['PATH']['TEST']).exists():
+        setup_database(self.db_file, config['PATH']['SCHEMA'])
-            teardown_database(config['PATH']['TEST'])
+        self.conn = obtain_connection(self.db_file)
-        setup_database(config['PATH']['TEST'], config['PATH']['SCHEMA'])
+        self.addCleanup(self.conn.close)
-        self.conn = obtain_connection(config['PATH']['TEST'])
+        self.addCleanup(os.remove, self.db_file)
 
     def tearDown(self) -> None:
         self.conn.close()
-        teardown_database(config['PATH']['TEST'])
-