Add E2E faucet test

tests/e2e_tests/conftest.py

@@ -21,7 +21,8 @@
 
 # Fixture for setting up and tearing down a localnet.sh chain between tests
 @pytest.fixture(scope="function")
-def local_chain():
+def local_chain(request):
+    param = request.param if hasattr(request, "param") else None
     # Get the environment variable for the script path
     script_path = os.getenv("LOCALNET_SH_PATH")
 
@@ -30,8 +31,13 @@ def local_chain():
         logging.warning("LOCALNET_SH_PATH env variable is not set, e2e test skipped.")
         pytest.skip("LOCALNET_SH_PATH environment variable is not set.")
 
+    # Check if param is None, and handle it accordingly
+    if param is None:
+        args = ""
+    else:
+        args = f"fast_blocks={param}"
+    cmds = shlex.split(f"{script_path} {args}")
     # Start new node process
-    cmds = shlex.split(script_path)
     process = subprocess.Popen(
         cmds, stdout=subprocess.PIPE, text=True, preexec_fn=os.setsid
     )

tests/e2e_tests/subcommands/wallet/test_faucet.py

@@ -0,0 +1,83 @@
+import pytest
+
+import bittensor
+from bittensor import logging
+from bittensor.commands import (
+    RegisterCommand,
+    RegisterSubnetworkCommand,
+    RunFaucetCommand,
+)
+from tests.e2e_tests.utils import (
+    setup_wallet,
+)
+
+
+@pytest.mark.parametrize("local_chain", [False], indirect=True)
+def test_faucet(local_chain):
+    # Register root as Alice
+    keypair, exec_command, wallet_path = setup_wallet("//Alice")
+    exec_command(RegisterSubnetworkCommand, ["s", "create"])
+
+    # Verify subnet 1 created successfully
+    assert local_chain.query("SubtensorModule", "NetworksAdded", [1]).serialize()
+
+    # Register a neuron to the subnet
+    exec_command(
+        RegisterCommand,
+        [
+            "s",
+            "register",
+            "--netuid",
+            "1",
+            "--wallet.name",
+            "default",
+            "--wallet.hotkey",
+            "default",
+            "--subtensor.network",
+            "local",
+            "--subtensor.chain_endpoint",
+            "ws://localhost:9945",
+            "--no_prompt",
+        ],
+    )
+
+    subtensor = bittensor.subtensor(network="ws://localhost:9945")
+
+    # verify current balance
+    wallet_balance = subtensor.get_balance(keypair.ss58_address)
+    assert wallet_balance.tao == 998999.0
+
+    # run faucet 3 times
+    for i in range(3):
+        logging.info(f"faucet run #:{i+1}")
+        try:
+            exec_command(
+                RunFaucetCommand,
+                [
+                    "wallet",
+                    "faucet",
+                    "--wallet.name",
+                    "default",
+                    "--wallet.hotkey",
+                    "default",
+                    "--subtensor.chain_endpoint",
+                    "ws://localhost:9945",
+                ],
+            )
+            logging.info(
+                f"wallet balance is {subtensor.get_balance(keypair.ss58_address).tao} tao"
+            )
+        except SystemExit as e:
+            logging.warning(
+                "Block not generated fast enough to be within 3 block seconds window."
+            )
+            # Handle the SystemExit exception
+            assert e.code == 1  # Assert that the exit code is 1
+        except Exception as e:
+            logging.warning(f"Unexpected exception occurred on faucet: {e}")
+
+    subtensor = bittensor.subtensor(network="ws://localhost:9945")
+
+    new_wallet_balance = subtensor.get_balance(keypair.ss58_address)
+    # verify balance increase
+    assert wallet_balance.tao < new_wallet_balance.tao

tests/e2e_tests/utils.py

@@ -3,9 +3,10 @@
 import subprocess
 import sys
 
-import requests
-from substrateinterface import Keypair
 from typing import List
+
+from bittensor import Keypair
+
 import bittensor
 
 template_path = os.getcwd() + "/neurons/"