Merge pull request vyperlang#129 from DanielSchiavini/anvil

fix: disable prefetch for anvil tests

boa/explorer.py

@@ -2,10 +2,9 @@
 
 import requests
 
-from boa.environment import Address
-
 SESSION = requests.Session()
 
+
 def _fetch_etherscan(uri: str, api_key: str = None, **params) -> dict:
     if api_key is not None:
         params["apikey"] = api_key

tests/integration/fork/test_from_etherscan.py

@@ -1,11 +1,13 @@
 import os
+
 import pytest
 
 import boa
 
 crvusd = "0xf939E0A03FB07F59A73314E73794Be0E57ac1b4E"
 voting_agent = "0xE478de485ad2fe566d49342Cbd03E49ed7DB3356"
 
+
 @pytest.fixture(scope="module")
 def api_key():
     return os.environ.get("ETHERSCAN_API_KEY")
@@ -14,14 +16,14 @@ def api_key():
 @pytest.fixture(scope="module")
 def crvusd_contract(api_key):
     contract = boa.from_etherscan(crvusd, name="crvUSD", api_key=api_key)
-    
+
     return contract
 
 
 @pytest.fixture(scope="module")
 def proxy_contract(api_key):
     contract = boa.from_etherscan(voting_agent, name="VotingAgent", api_key=api_key)
-    
+
     return contract
 
 

tests/integration/network/anvil/conftest.py

@@ -60,6 +60,11 @@ def anvil_env(free_port):
                 break
             except requests.exceptions.ConnectionError:
                 time.sleep(0.1)
+
+        # Anvil ignores the tracer argument, therefore returning invalid data.
+        # see https://github.com/foundry-rs/foundry/issues/6882
+        anvil_env._fork_try_prefetch_state = False
+
         yield NetworkEnv(anvil_uri)
     finally:
         anvil.terminate()

tests/integration/network/anvil/test_network_env.py

@@ -56,4 +56,21 @@ def test_raise_exception(simple_contract, t):
         simple_contract.raise_exception(t)
 
 
+# Prefetch is disabled currently since anvil doesn't support `prestateTracer`.
+# This test will fail when anvil is fixed, so we can re-enable prefetching.
+# Then, this test may be deleted. See fixture `anvil_env`
+def test_debug_traceCall_tracer_ignored(simple_contract):
+    assert boa.env._fork_try_prefetch_state is False
+    assert simple_contract.totalSupply() == STARTING_SUPPLY
+
+    boa.env._fork_try_prefetch_state = True
+    try:
+        with pytest.raises(ValueError) as excinfo:
+            boa.loads(code, STARTING_SUPPLY)
+        expected = "when sending a str, it must be a hex string. Got: 'failed'"
+        assert expected == str(excinfo.value)
+    finally:
+        boa.env._fork_try_prefetch_state = False
+
+
 # XXX: probably want to test deployment revert behavior