test: add alias test (#6585)

Cargo.toml

@@ -148,7 +148,7 @@ alloy-json-abi = "0.5.0"
 alloy-sol-types = "0.5.0"
 syn-solidity = "0.5.0"
 
-alloy-chains = "0.1.4"
+alloy-chains = "0.1.5"
 alloy-rlp = "0.3.3"
 solang-parser = "=0.3.3"
 

crates/config/src/etherscan.rs

@@ -194,7 +194,9 @@ impl EtherscanConfig {
                 Ok(ResolvedEtherscanConfig { api_url, browser_url: None, key, chain: None })
             }
             (None, None) => {
-                let msg = alias.map(|a| format!(" for Etherscan config `{a}`")).unwrap_or_default();
+                let msg = alias
+                    .map(|a| format!(" for Etherscan config with unknown alias `{a}`"))
+                    .unwrap_or_default();
                 Err(EtherscanConfigError::MissingUrlOrChain(msg))
             }
         }

crates/config/src/lib.rs

@@ -3089,6 +3089,33 @@ mod tests {
         })
     }
 
+    #[test]
+    fn test_resolve_rpc_aliases() {
+        figment::Jail::expect_with(|jail| {
+            jail.create_file(
+                "foundry.toml",
+                r#"
+               [profile.default]
+               [etherscan]
+               arbitrum_alias = { key = "${TEST_RESOLVE_RPC_ALIAS_ARBISCAN}" }
+               [rpc_endpoints]
+               arbitrum_alias = "https://arb-mainnet.g.alchemy.com/v2/${TEST_RESOLVE_RPC_ALIAS_ARB_ONE}"
+            "#,
+            )?;
+
+            jail.set_env("TEST_RESOLVE_RPC_ALIAS_ARB_ONE", "123455");
+            jail.set_env("TEST_RESOLVE_RPC_ALIAS_ARBISCAN", "123455");
+
+            let config = Config::load();
+
+            let config = config.get_etherscan_config_with_chain(Some(NamedChain::Arbitrum.into()));
+            assert!(config.is_err());
+            assert_eq!(config.unwrap_err().to_string(), "At least one of `url` or `chain` must be present for Etherscan config with unknown alias `arbitrum_alias`");
+
+            Ok(())
+        });
+    }
+
     #[test]
     fn test_resolve_endpoints() {
         figment::Jail::expect_with(|jail| {