Fix last tests

Author: DanielSchiavini

README.md

@@ -393,7 +393,7 @@ Set up the python environment using the following steps:
 
 ```
 
-This project uses `titanoboa`.
+This project uses [`titanoboa`](https://github.com/vyperlang/titanoboa) for deployment and testing.
 
 ### Testing
 
@@ -441,21 +441,13 @@ The following command simulates metaregistry setup. For Prod transactions, set n
 #### Deployments
 
 Ethereum Mainnet:
-
-
-`base_pool_registry`: [0xDE3eAD9B2145bBA2EB74007e58ED07308716B725](https://etherscan.io/address/0xDE3eAD9B2145bBA2EB74007e58ED07308716B725#code)
-
-`crypto_registry`: [0x9a32aF1A11D9c937aEa61A3790C2983257eA8Bc0](https://etherscan.io/address/0x9a32aF1A11D9c937aEa61A3790C2983257eA8Bc0#code)
-
-`stable_registry_handler`: [0x46a8a9CF4Fc8e99EC3A14558ACABC1D93A27de68](https://etherscan.io/address/0x46a8a9CF4Fc8e99EC3A14558ACABC1D93A27de68#code)
-
-`stable_factory_handler`: [0x127db66E7F0b16470Bec194d0f496F9Fa065d0A9](https://etherscan.io/address/0x127db66E7F0b16470Bec194d0f496F9Fa065d0A9#code)
-
-`crypto_registry_handler`: [0x22ceb131d3170f9f2FeA6b4b1dE1B45fcfC86E56](https://etherscan.io/address/0x22ceb131d3170f9f2FeA6b4b1dE1B45fcfC86E56#code)
-
-`crypto_factory_handler`: [0xC4F389020002396143B863F6325aA6ae481D19CE](https://etherscan.io/address/0xC4F389020002396143B863F6325aA6ae481D19CE#code)
-
-`metaregistry`: [0xF98B45FA17DE75FB1aD0e7aFD971b0ca00e379fC](https://etherscan.io/address/0xF98B45FA17DE75FB1aD0e7aFD971b0ca00e379fC#code)
+- `base_pool_registry`: [0xDE3eAD9B2145bBA2EB74007e58ED07308716B725](https://etherscan.io/address/0xDE3eAD9B2145bBA2EB74007e58ED07308716B725#code)
+- `crypto_registry`: [0x9a32aF1A11D9c937aEa61A3790C2983257eA8Bc0](https://etherscan.io/address/0x9a32aF1A11D9c937aEa61A3790C2983257eA8Bc0#code)
+- `stable_registry_handler`: [0x46a8a9CF4Fc8e99EC3A14558ACABC1D93A27de68](https://etherscan.io/address/0x46a8a9CF4Fc8e99EC3A14558ACABC1D93A27de68#code)
+- `stable_factory_handler`: [0x127db66E7F0b16470Bec194d0f496F9Fa065d0A9](https://etherscan.io/address/0x127db66E7F0b16470Bec194d0f496F9Fa065d0A9#code)
+- `crypto_registry_handler`: [0x22ceb131d3170f9f2FeA6b4b1dE1B45fcfC86E56](https://etherscan.io/address/0x22ceb131d3170f9f2FeA6b4b1dE1B45fcfC86E56#code)
+- `crypto_factory_handler`: [0xC4F389020002396143B863F6325aA6ae481D19CE](https://etherscan.io/address/0xC4F389020002396143B863F6325aA6ae481D19CE#code)
+- `metaregistry`: [0xF98B45FA17DE75FB1aD0e7aFD971b0ca00e379fC](https://etherscan.io/address/0xF98B45FA17DE75FB1aD0e7aFD971b0ca00e379fC#code)
 
 ### License
 

tests/mainnet/metaregistry/api/test_find_pool_for_coins.py

@@ -19,7 +19,8 @@ def _get_all_combinations(metaregistry, pool):
 
     # there exist some pools with an LP token as the first coin, that's incorrect
     # example: 0xf5d5305790c1af08e9df44b30a1afe56ccda72df
-    is_first_coin_lp_token = metaregistry.get_pool_from_lp_token(first_coin)
+    lp_token_pool = metaregistry.get_pool_from_lp_token(first_coin)
+    is_first_coin_lp_token = lp_token_pool and lp_token_pool != ZERO_ADDRESS
 
     if metaregistry.is_meta(pool) and not is_first_coin_lp_token:
         underlying_coins = [
@@ -46,8 +47,13 @@ def test_all(populated_metaregistry, pool):
         pools_containing_pair = populated_metaregistry.find_pools_for_coins(
             coin1, coin2
         )
-        assert pool in pools_containing_pair
+        assert pool in pools_containing_pair, (
+            f"Cannot find pool {pool} for coin combination {coin1} and {coin2}. "
+            f"Pools found {pools_containing_pair}"
+        )
 
-        for i, found_pool in enumerate(pools_containing_pair):
-            pool = populated_metaregistry.find_pool_for_coins(coin1, coin2, i)
-            assert pool == found_pool
+        # test with specified index
+        assert pools_containing_pair == [
+            populated_metaregistry.find_pool_for_coins(coin1, coin2, i)
+            for i in range(len(pools_containing_pair))
+        ]

tests/mainnet/metaregistry/api/test_get_pool_name.py

@@ -18,23 +18,28 @@ def test_stable_factory_pools(populated_metaregistry, stable_factory_pool):
             stable_factory_pool
         )
     )
-    num_registry_handlers = len(
-        handler != ZERO_ADDRESS for handler in pool_registry_handlers
+    pool_registry_handlers = [
+        handler
+        for handler in pool_registry_handlers
+        if handler != ZERO_ADDRESS
+    ]
+    num_registry_handlers = len(pool_registry_handlers)
+
+    pool_name = populated_metaregistry.get_pool_name(stable_factory_pool)
+    token_name = get_deployed_contract("ERC20", stable_factory_pool).name()
+    assert num_registry_handlers in (1, 2), (
+        f"Invalid number of registry handlers for {stable_factory_pool}. "
+        f"Metaregistry returned {num_registry_handlers} handlers: {pool_registry_handlers}"
     )
-
-    name = populated_metaregistry.get_pool_name(stable_factory_pool)
-    token_contract = get_deployed_contract("ERC20", stable_factory_pool)
     if num_registry_handlers == 1:
-        assert name == token_contract.name()
-    else:
-        assert name != token_contract.name()
-
-        pool_name2 = populated_metaregistry.get_pool_name(
-            stable_factory_pool, 1
-        )
-        assert pool_name2 == token_contract.name()
+        assert pool_name == token_name
+        return
 
-    assert num_registry_handlers in (1, 2)
+    assert pool_name != token_name
+    second_pool_name = populated_metaregistry.get_pool_name(
+        stable_factory_pool, 1
+    )
+    assert second_pool_name == token_name
 
 
 def test_crypto_registry_pools(