Handle newlines for bytes data in cast keccak (#12339)

* Add cast keccak test

* Trim end for bytes data in SimpleCast::keccak

Author: quangloc99

crates/cast/src/lib.rs

@@ -2095,8 +2095,11 @@ impl SimpleCast {
     /// ```
     pub fn keccak(data: &str) -> Result<String> {
         // Hex-decode if data starts with 0x.
-        let hash =
-            if data.starts_with("0x") { keccak256(hex::decode(data)?) } else { keccak256(data) };
+        let hash = if data.starts_with("0x") {
+            keccak256(hex::decode(data.trim_end())?)
+        } else {
+            keccak256(data)
+        };
         Ok(hash.to_string())
     }
 

crates/cast/tests/cli/main.rs

@@ -4232,6 +4232,20 @@ casttest!(erc20_allowance_success, |_prj, cmd| {
 "#]]);
 });
 
+casttest!(keccak_stdin_bytes, |_prj, cmd| {
+    cmd.args(["keccak"]).stdin("0x12").assert_success().stdout_eq(str![[r#"
+0x5fa2358263196dbbf23d1ca7a509451f7a2f64c15837bfbb81298b1e3e24e4fa
+
+"#]]);
+});
+
+casttest!(keccak_stdin_bytes_with_newline, |_prj, cmd| {
+    cmd.args(["keccak"]).stdin("0x12\n").assert_success().stdout_eq(str![[r#"
+0x5fa2358263196dbbf23d1ca7a509451f7a2f64c15837bfbb81298b1e3e24e4fa
+
+"#]]);
+});
+
 // tests that `cast erc20 transfer` and `cast erc20 approve` commands works correctly
 forgetest_async!(erc20_transfer_approve_success, |prj, cmd| {
     let (_, handle) = anvil::spawn(NodeConfig::test()).await;