Merge pull request #43 from bancorprotocol/42-b3_two_hop-arb-mode-res…

…ulting-in-losses-due-to-lack-of-data-validation

Adds data validation to `b3_two_hop` mode by default.

.env.example

@@ -1,6 +1,5 @@
 export WEB3_ALCHEMY_PROJECT_ID="0-USE-YOUR-OWN-ALCHEMY-PROJECT-ID-HERE"
 export ETH_PRIVATE_KEY_BE_CAREFUL="0x123-USE-YOUR-OWN-PRIVATE-KEY-HERE"
-export DEFAULT_MIN_PROFIT_BNT="1"
 
 #******** For Development - not required to run bot ********#
 export ETHERSCAN_TOKEN="ONLY_REQUIRED_IN_DEV"

.gitignore

@@ -9,6 +9,7 @@ topaze
 *.gif
 *.json
 
+.sourcery.yaml
 .DS_Store
 .idea/*
 .idea/modules.xml

fastlane_bot/bot.py

@@ -477,7 +477,8 @@ def _run(
 
         self.ConfigObj.logger.info(f"Found {len(r)} eligible arb opportunities.")
         r = self.randomize(arb_opps=r, randomizer=randomizer)
-        if data_validator or arb_mode == "bancor_v3":
+
+        if data_validator:
             # Add random chance if we should check or not
             r = self.validate_optimizer_trades(arb_opp=r, arb_mode=arb_mode, arb_finder=finder)
             if r is None:
@@ -1252,6 +1253,10 @@ def run(
             whether to run the bot one-off or continuously (default: RUN_CONTINUOUS)
         arb_mode: str
             the arbitrage mode (default: None)
+        run_data_validator: bool
+            whether to run the data validator (default: False)
+        randomizer: int
+            the randomizer (default: 0)
 
         Returns
         -------
@@ -1264,6 +1269,11 @@ def run(
         flashloan_tokens = self.setup_flashloan_tokens(flashloan_tokens)
         CCm = self.setup_CCm(CCm)
 
+        if arb_mode in {"bancor_v3", "b3_two_hop"}:
+            run_data_validator = True
+            # The following logs are used for asserting various pytests, do not remove.
+            self.ConfigObj.logger.info(f"Transactions will be required to pass data validation for {arb_mode}")
+
         if mode == "continuous":
             self.run_continuous_mode(flashloan_tokens, arb_mode, run_data_validator, randomizer)
         else:

fastlane_bot/config/network.py

@@ -19,8 +19,6 @@
 load_dotenv()  # take environment variables from .env.
 
 TENDERLY_FORK = os.environ.get("TENDERLY_FORK_ID")
-mp = os.environ.get("DEFAULT_MIN_PROFIT_BNT")
-DEFAULT_MIN_PROFIT_BNT = Decimal('1')
 
 
 class ConfigNetwork(ConfigBase):
@@ -83,8 +81,6 @@ class ConfigNetwork(ConfigBase):
     DEFAULT_GAS_SAFETY_OFFSET = 25_000
     DEFAULT_POLL_INTERVAL = 12
     DEFAULT_BLOCKTIME_DEVIATION = 13 * 500  # 10 block time deviation
-    DEFAULT_MIN_PROFIT = DEFAULT_MIN_PROFIT_BNT
-    DEFAULT_MIN_PROFIT_BNT = DEFAULT_MIN_PROFIT_BNT
     DEFAULT_MAX_SLIPPAGE = Decimal("1")  # 1%
     _PROJECT_PATH = os.path.normpath(f"{os.getcwd()}")  # TODO: FIX THIS
     DEFAULT_CURVES_DATAFILE = os.path.normpath(f"{_PROJECT_PATH}/carbon/data/curves.csv.gz")
@@ -94,6 +90,9 @@ class ConfigNetwork(ConfigBase):
     CARBON_FEE = Decimal("0.002")
     BANCOR_V3_FEE = Decimal("0.0")
     DEFAULT_REWARD_PERCENT = Decimal("0.5")
+    LIMIT_BANCOR3_FLASHLOAN_TOKENS = True
+    DEFAULT_MIN_PROFIT_BNT = Decimal("80")
+    DEFAULT_MIN_PROFIT = Decimal("80")
 
     # SUNDRY SECTION
     #######################################################################################

fastlane_bot/data/latest_event_data.json

@@ -0,0 +1 @@
+[{"args": {"reserve0": 984915892997597, "reserve1": 7623238753074956607}, "event": "Sync", "logIndex": 303, "transactionIndex": 176, "transactionHash": "0x1aac951dd058168778d5e278e5055fe3246164e86431e2e1fcf131bb09c9a2f5", "address": "0xbe19C32B4CD202407e8eEB73e4E2949438461Ae3", "blockHash": "0x170ea019b162bb02315eb79bed861fa3758cfb798ff8263773d0b37a9afa9b89", "blockNumber": 17805789}, {"args": {"reserve0": 29940707366020, "reserve1": 15986480636095531285587}, "event": "Sync", "logIndex": 203, "transactionIndex": 125, "transactionHash": "0x73bffbb865696ec0974da3303c020e16e72e9a7529a5a982d8bfbebb15161ee1", "address": "0xB4e16d0168e52d35CaCD2c6185b44281Ec28C9Dc", "blockHash": "0x170ea019b162bb02315eb79bed861fa3758cfb798ff8263773d0b37a9afa9b89", "blockNumber": 17805789}, {"args": {"reserve0": 92268010355902189420181, "reserve1": 67150867012221180436}, "event": "Sync", "logIndex": 81, "transactionIndex": 53, "transactionHash": "0x5e40c742092cf4d428a36b8184e7e695ff9b361d1846714ed283ffcabbe633af", "address": "0x7825dE5586E4d2FD04459091bbe783fa243E1bf3", "blockHash": "0x170ea019b162bb02315eb79bed861fa3758cfb798ff8263773d0b37a9afa9b89", "blockNumber": 17805789}, {"args": {"reserve0": 2075897365998792292569, "reserve1": 28159850537826581922}, "event": "Sync", "logIndex": 64, "transactionIndex": 23, "transactionHash": "0x40228d3ab11b1f8caef5b72ad2c3f9aaafde07fb6e0066af63362a658f185f3d", "address": "0x56feAccb7f750B997B36A68625C7C596F0B41A58", "blockHash": "0xfac660eabe94f6e667916cf5ad4f5055458922fd12af9afa122f8a4518a46efb", "blockNumber": 17805788}, {"args": {"reserve0": 18841458115861660229, "reserve1": 440621902342402444540009318}, "event": "Sync", "logIndex": 266, "transactionIndex": 121, "transactionHash": "0x23b68fdb274e632849350e359f7eca45551cb48d1b61ad912ffac17a11a0c821", "address": "0x60a39010e4892b862d1bb6bdDe908215Ac5af6F3", "blockHash": "0xe2014e3d7138eb7eab4be2ab9f034662391bf053a16aac2ea64952e742cbde7e", "blockNumber": 17805787}, {"args": {"reserve0": 1987444095978300349610411, "reserve1": 171719984771536823693}, "event": "Sync", "logIndex": 242, "transactionIndex": 107, "transactionHash": "0xb24a762665ce5d9049d3c548b60d0710df2faff431bc794f154f665a0396caea", "address": "0xd8C1C327a7045B0fA27aa7e40Ea38c9aC52C1C13", "blockHash": "0xe2014e3d7138eb7eab4be2ab9f034662391bf053a16aac2ea64952e742cbde7e", "blockNumber": 17805787}, {"args": {"reserve0": 17155775813841714843776, "reserve1": 32219409385236}, "event": "Sync", "logIndex": 120, "transactionIndex": 46, "transactionHash": "0x67837340fd25da518d905677fb412a5a2dd0e142a6d975949664eadf1671f570", "address": "0x0d4a11d5EEaaC28EC3F61d100daF4d40471f1852", "blockHash": "0xe2014e3d7138eb7eab4be2ab9f034662391bf053a16aac2ea64952e742cbde7e", "blockNumber": 17805787}, {"args": {"reserve0": 569488821150808607303, "reserve1": 14495800016}, "event": "Sync", "logIndex": 107, "transactionIndex": 42, "transactionHash": "0x66fa4e899bf77cdcae71c5c7ba5cdf63c0abf817953a7712417132c6ef1aa24f", "address": "0x514906FC121c7878424a5C928cad1852CC545892", "blockHash": "0xe2014e3d7138eb7eab4be2ab9f034662391bf053a16aac2ea64952e742cbde7e", "blockNumber": 17805787}, {"args": {"reserve0": 13185887808642567645609476, "reserve1": 11223110447652764429}, "event": "Sync", "logIndex": 20, "transactionIndex": 3, "transactionHash": "0xb33069ef052a0409e2e8bda150d32a79869d47807ad7d0a6b073505f23985a76", "address": "0x67aed537eEBA768a07567cBa400489DDd4715Fa5", "blockHash": "0xe2014e3d7138eb7eab4be2ab9f034662391bf053a16aac2ea64952e742cbde7e", "blockNumber": 17805787}, {"args": {"reserve0": 1673359029633663, "reserve1": 609831018217025003505}, "event": "Sync", "logIndex": 167, "transactionIndex": 87, "transactionHash": "0x5f52c46f3cc8b09b84f848e57745fbafe9a4e253e5063b15d6b7714b5bed7f7e", "address": "0x2cC846fFf0b08FB3bFfaD71f53a60B4b6E6d6482", "blockHash": "0xdd9f2838ee952c6ba1bd86fd4fba3bb1d703cc9635b3c8040c73517464101476", "blockNumber": 17805786}, {"args": {"reserve0": 4199825380902928735406984385, "reserve1": 450985118034813734017}, "event": "Sync", "logIndex": 127, "transactionIndex": 74, "transactionHash": "0x2b5762c294b4d3dffdd66937730bb1d3b68f939e25d1c6baa844385df166ffcc", "address": "0xc6A45EcDC8bCEF94c476647be1303fd83D438cD0", "blockHash": "0xdd9f2838ee952c6ba1bd86fd4fba3bb1d703cc9635b3c8040c73517464101476", "blockNumber": 17805786}, {"args": {"reserve0": 1361477230294798219873473, "reserve1": 256198542693727576026}, "event": "Sync", "logIndex": 62, "transactionIndex": 9, "transactionHash": "0x684a17b3dc6c4ae078161198a8db3eef156a4ddc0860dd19dd9acf410ba3590e", "address": "0x9b7DaD79FC16106b47a3DAb791F389C167e15Eb0", "blockHash": "0xdd9f2838ee952c6ba1bd86fd4fba3bb1d703cc9635b3c8040c73517464101476", "blockNumber": 17805786}, {"args": {"reserve0": 18759976093858495798228598, "reserve1": 74155406144105097769}, "event": "Sync", "logIndex": 392, "transactionIndex": 148, "transactionHash": "0x808f27d5594f663cd8d2790ed81ee313c7f5b0a885b596f1ecdb2e03646b7104", "address": "0x87B958067FD665f3937de4439450B4950Eb68e15", "blockHash": "0x5c323f784cecbe7f9bfdbe6a5f3e43ae4a5288375e4079ca6d54c17292849a17", "blockNumber": 17805785}, {"args": {"reserve0": 91550537093485355400883, "reserve1": 187340170617735872969}, "event": "Sync", "logIndex": 193, "transactionIndex": 67, "transactionHash": "0xc7568a42f9f16cf7cd504eda491e5a6618be53562049a0c5017e5ace301d6efe", "address": "0x05767d9EF41dC40689678fFca0608878fb3dE906", "blockHash": "0x5c323f784cecbe7f9bfdbe6a5f3e43ae4a5288375e4079ca6d54c17292849a17", "blockNumber": 17805785}, {"args": {"reserve0": 180413102703478365987727, "reserve1": 66522823759623404926}, "event": "Sync", "logIndex": 56, "transactionIndex": 5, "transactionHash": "0x0b69daeef1018b23b0c31de4b877884a0dba0e629d5d3452002a942c26b11068", "address": "0xCE84867c3c02B05dc570d0135103d3fB9CC19433", "blockHash": "0x5c323f784cecbe7f9bfdbe6a5f3e43ae4a5288375e4079ca6d54c17292849a17", "blockNumber": 17805785}, {"args": {"sender": "0x92F3f71CeF740ED5784874B8C70Ff87ECdF33588", "recipient": "0x1111111254fb6c44bAC0beD2854e76F90643097d", "amount0": -1739493242500594860, "amount1": 4958296224, "sqrtPriceX96": 4224020051622363472625339, "liquidity": 458199188514823742, "tick": -196796}, "event": "Swap", "logIndex": 190, "transactionIndex": 121, "transactionHash": "0x51f82abfd09a87e47fbaa140d462df4aa90623731f3e2027581b606a44dd5867", "address": "0x08f68110f1e0Ca67C80a24B4Bd206675610f445D", "blockHash": "0x170ea019b162bb02315eb79bed861fa3758cfb798ff8263773d0b37a9afa9b89", "blockNumber": 17805789}, {"args": {"sender": "0xE592427A0AEce92De3Edee1F18E0157C05861564", "recipient": "0xcbF04EaC5a3443941CE6A41ff38D7E238406f0E4", "amount0": -49415894948820013438, "amount1": 1705902422381439744, "sqrtPriceX96": 14699216908678091626714211931, "liquidity": 1277138653211081126522, "tick": -33693}, "event": "Swap", "logIndex": 15, "transactionIndex": 3, "transactionHash": "0xe2877aa4eeee3e88c686a4396037adbbfe0b73744b43f3300230d0187ef7e60f", "address": "0x11B7a6bc0259ed6Cf9DB8F499988F9eCc7167bf5", "blockHash": "0x170ea019b162bb02315eb79bed861fa3758cfb798ff8263773d0b37a9afa9b89", "blockNumber": 17805789}, {"args": {"sender": "0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD", "recipient": "0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD", "amount0": 347700000000, "amount1": -611849448180004690, "sqrtPriceX96": 105424922620005800414225896484783, "liquidity": 118829016464869136, "tick": 143875}, "event": "Swap", "logIndex": 253, "transactionIndex": 103, "transactionHash": "0xebc32f7735265aa51cd086850b2b6e9408035a1bfa5bef91567b35c5d339c437", "address": "0xfE8C1aceE975592BdF5465F42364e5a5597e5004", "blockHash": "0xfac660eabe94f6e667916cf5ad4f5055458922fd12af9afa122f8a4518a46efb", "blockNumber": 17805788}, {"args": {"sender": "0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD", "recipient": "0x34d82c9FEa23aA0D92574aFbAA4F3c3eFE905395", "amount0": -56605078041658310314393213, "amount1": 40000000000000000, "sqrtPriceX96": 2102954452085073506558130, "liquidity": 806400033269961586841676526, "tick": -210746}, "event": "Swap", "logIndex": 114, "transactionIndex": 47, "transactionHash": "0x088e6dc979739abb52d072b21eb04609ab82b28988c8610ebb1bd8d8364b5e27", "address": "0x11950d141EcB863F01007AdD7D1A342041227b58", "blockHash": "0xfac660eabe94f6e667916cf5ad4f5055458922fd12af9afa122f8a4518a46efb", "blockNumber": 17805788}, {"args": {"sender": "0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45", "recipient": "0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45", "amount0": 1030711460000000000, "amount1": -61945854719340793, "sqrtPriceX96": 19452041896685551475470626247, "liquidity": 12506375127173582573597, "tick": -28089}, "event": "Swap", "logIndex": 92, "transactionIndex": 38, "transactionHash": "0xb5cf81eeb7274aedb4f3961224ee699732faad5e6b07f24abc937854a74372e1", "address": "0x24EE2c6B9597F035088CDa8575E9D5e15a84B9DF", "blockHash": "0xfac660eabe94f6e667916cf5ad4f5055458922fd12af9afa122f8a4518a46efb", "blockNumber": 17805788}, {"args": {"sender": "0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD", "recipient": "0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD", "amount0": 300000000000000000000, "amount1": -234665168792452738, "sqrtPriceX96": 2218994442505082048529738608, "liquidity": 46081051035841935610169, "tick": -71510}, "event": "Swap", "logIndex": 4, "transactionIndex": 0, "transactionHash": "0x87a2f1aba8fda7e82ec589b8158cd5911a67329f36d6f8ab051eb8bdf3d9bd0e", "address": "0xb011e4EB4111ef00b620A5ed195836dCd69dB1FF", "blockHash": "0xfac660eabe94f6e667916cf5ad4f5055458922fd12af9afa122f8a4518a46efb", "blockNumber": 17805788}, {"args": {"sender": "0xfbEedCFe378866DaB6abbaFd8B2986F5C1768737", "recipient": "0xfbEedCFe378866DaB6abbaFd8B2986F5C1768737", "amount0": 7635905077886216000000, "amount1": -1433890539025418040, "sqrtPriceX96": 1086063779045237940313078701, "liquidity": 44978309692821762618535, "tick": -85800}, "event": "Swap", "logIndex": 69, "transactionIndex": 26, "transactionHash": "0xd03277a54a08f5ee3c4956d776ca63ec9b567e37fe9ad13265891ff39e439352", "address": "0x283E2E83b7f3e297C4B7c02114Ab0196B001a109", "blockHash": "0xe2014e3d7138eb7eab4be2ab9f034662391bf053a16aac2ea64952e742cbde7e", "blockNumber": 17805787}, {"args": {"sender": "0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD", "recipient": "0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD", "amount0": 7105458524672886907042, "amount1": -150000000000000000, "sqrtPriceX96": 365252464019109369794409820, "liquidity": 9818445383381187572191, "tick": -107596}, "event": "Swap", "logIndex": 315, "transactionIndex": 113, "transactionHash": "0x7f864b187689bc0e25feea449ddace24feb75e223433abc97d50bdc09adc54c5", "address": "0x7fb33DfFbb7eB142053aC1787eFB6C0Bb9178168", "blockHash": "0x5c323f784cecbe7f9bfdbe6a5f3e43ae4a5288375e4079ca6d54c17292849a17", "blockNumber": 17805785}, {"args": {"sender": "0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD", "recipient": "0xc2ef1173a4B051BbCc4474c407BBb2ac7E02e363", "amount0": 540240780615055042, "amount1": -1012767644, "sqrtPriceX96": 3431222782168746837506863, "liquidity": 10262983856223310290, "tick": -200954}, "event": "Swap", "logIndex": 311, "transactionIndex": 111, "transactionHash": "0x0e8484e8efc90a99e016d4c973fe0d0b782844e84a33dd0974cf3ffdd1ddd901", "address": "0x11b815efB8f581194ae79006d24E0d814B7697F6", "blockHash": "0x5c323f784cecbe7f9bfdbe6a5f3e43ae4a5288375e4079ca6d54c17292849a17", "blockNumber": 17805785}, {"args": {"sender": "0x1111111254EEB25477B68fb85Ed929f73A960582", "recipient": "0xa7Ca2C8673bcFA5a26d8ceeC2887f2CC2b0Db22A", "amount0": -445175026364413852, "amount1": 33408920515, "sqrtPriceX96": 21689339444929437149678994, "liquidity": 74835646771732054, "tick": -164074}, "event": "Swap", "logIndex": 182, "transactionIndex": 63, "transactionHash": "0x35f8dd5f17d09bd02e953c8da044e04c4fbf8608bbd136c51b278ee432b8e543", "address": "0x127452F3f9cDc0389b0Bf59ce6131aA3Bd763598", "blockHash": "0x5c323f784cecbe7f9bfdbe6a5f3e43ae4a5288375e4079ca6d54c17292849a17", "blockNumber": 17805785}]

fastlane_bot/modes/base.py

@@ -256,3 +256,15 @@ def find_best_operations(
                 trade_instructions_dic,
             )
         return best_profit, ops
+
+    def _check_limit_flashloan_tokens_for_bancor3(self):
+        """
+        Limit the flashloan tokens for bancor v3.
+        """
+        fltkns = self.CCm.byparams(exchange="bancor_v3").tknys()
+        if self.ConfigObj.LIMIT_BANCOR3_FLASHLOAN_TOKENS:
+            # Filter out tokens that are not in the existing flashloan_tokens list
+            self.flashloan_tokens = [tkn for tkn in fltkns if tkn in self.flashloan_tokens]
+            self.ConfigObj.logger.info(f"limiting flashloan_tokens to {self.flashloan_tokens}")
+        else:
+            self.flashloan_tokens = fltkns

fastlane_bot/modes/triangle_bancor_v3_two_hop.py

@@ -33,7 +33,8 @@ def find_arbitrage(self, candidates: List[Any] = None, ops: Tuple = None, best_p
         self.ConfigObj.logger.info(
             f"flashloan_tokens for arb_mode={self.arb_mode} will be overwritten. "
         )
-        self.flashloan_tokens = self.CCm.byparams(exchange="bancor_v3").tknys()
+
+        self._check_limit_flashloan_tokens_for_bancor3()
 
         if candidates is None:
             candidates = []

fastlane_bot/modes/triangle_single_bancor3.py

@@ -33,7 +33,8 @@ def find_arbitrage(self, candidates: List[Any] = None, ops: Tuple = None, best_p
         self.ConfigObj.logger.info(
             f"flashloan_tokens for arb_mode={self.arb_mode} will be overwritten. "
         )
-        self.flashloan_tokens = self.CCm.byparams(exchange="bancor_v3").tknys()
+
+        self._check_limit_flashloan_tokens_for_bancor3()
 
         if candidates is None:
             candidates = []

fastlane_bot/tests/test_903_FlashloanTokens.py

@@ -0,0 +1,83 @@
+# ------------------------------------------------------------
+# Auto generated test file `test_903_FlashloanTokens.py`
+# ------------------------------------------------------------
+# source file   = NBTest_903_FlashloanTokens.py
+# test id       = 903
+# test comment  = FlashloanTokens
+# ------------------------------------------------------------
+
+
+
+"""
+This module contains the tests which ensure the the flashloan_tokens parameter is respected when using the b3_two_hop and bancor_v3 arb modes.
+"""
+from fastlane_bot import Bot
+from fastlane_bot.tools.cpc import ConstantProductCurve as CPC
+from fastlane_bot.events.exchanges import UniswapV2, UniswapV3, SushiswapV2, CarbonV1, BancorV3
+import subprocess
+import pytest
+print("{0.__name__} v{0.__VERSION__} ({0.__DATE__})".format(CPC))
+print("{0.__name__} v{0.__VERSION__} ({0.__DATE__})".format(Bot))
+print("{0.__name__} v{0.__VERSION__} ({0.__DATE__})".format(UniswapV2))
+print("{0.__name__} v{0.__VERSION__} ({0.__DATE__})".format(UniswapV3))
+print("{0.__name__} v{0.__VERSION__} ({0.__DATE__})".format(SushiswapV2))
+print("{0.__name__} v{0.__VERSION__} ({0.__DATE__})".format(CarbonV1))
+print("{0.__name__} v{0.__VERSION__} ({0.__DATE__})".format(BancorV3))
+from fastlane_bot.testing import *
+plt.rcParams['figure.figsize'] = [12,6]
+from fastlane_bot import __VERSION__
+require("3.0", __VERSION__)
+
+
+
+
+def run_command(mode):
+    import os
+    import time
+    import subprocess
+
+    try:
+        main_script_path = os.path.abspath(os.path.join(os.getcwd(), os.pardir, os.pardir, 'main.py'))
+        cmd = [
+            "python",
+            main_script_path,
+            f"--arb_mode={mode}",
+            "--default_min_profit_bnt=60",
+            "--limit_bancor3_flashloan_tokens=True",
+            "--use_cached_events=True",
+            "--logging_path=fastlane_bot/data/",
+            "--timeout=45"
+        ]
+    except subprocess.CalledProcessError:
+        main_script_path = os.path.abspath(os.path.join(os.getcwd(), os.pardir,  'main.py'))
+        cmd = [
+            "python",
+            main_script_path,
+            f"--arb_mode={mode}",
+            "--default_min_profit_bnt=60",
+            "--limit_bancor3_flashloan_tokens=True",
+            "--use_cached_events=True",
+            "--logging_path=fastlane_bot/data/",
+            "--timeout=45"
+        ]
+        subprocess.Popen(cmd)
+
+    start_time = time.time()
+    expected_log_line = "limiting flashloan_tokens to ["
+    result = subprocess.run(cmd, text=True, capture_output=True, check=True)
+
+    found = expected_log_line in result.stderr
+    if not found:
+        pytest.fail("Expected log line was not found within 1 minute")  # If we reach this point, the test has failed
+
+
+
+# ------------------------------------------------------------
+# Test      903
+# File      test_903_FlashloanTokens.py
+# Segment   Test Flashloan Tokens b3_two_hop
+# ------------------------------------------------------------
+# def test_test_flashloan_tokens_b3_two_hop():
+# # ------------------------------------------------------------
+#
+run_command("b3_two_hop")

log.txt

@@ -0,0 +1 @@
+Searching for main.py in /Users/mikewcasale/Documents/GitHub/fastlane-bot