From 227cea949132c062088d067b9f6b7ea4be9e4d16 Mon Sep 17 00:00:00 2001
From: ilyalesokhin-starkware <ilya@starkware.co>
Date: Tue, 1 Oct 2024 14:32:57 +0300
Subject: [PATCH] Fix returned error array. (#6442)

---
 crates/cairo-lang-runner/src/casm_run/mod.rs         | 12 +++++++++---
 .../cairo_level_tests/interoperability.cairo         |  2 +-
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/crates/cairo-lang-runner/src/casm_run/mod.rs b/crates/cairo-lang-runner/src/casm_run/mod.rs
index 0e14d928c1a..dd2b301f8ab 100644
--- a/crates/cairo-lang-runner/src/casm_run/mod.rs
+++ b/crates/cairo-lang-runner/src/casm_run/mod.rs
@@ -307,6 +307,12 @@ enum SyscallResult {
 }
 
 macro_rules! fail_syscall {
+    ([$reason1:expr, $reason2:expr]) => {
+        return Ok(SyscallResult::Failure(vec![
+            Felt252::from_bytes_be_slice($reason1),
+            Felt252::from_bytes_be_slice($reason2),
+        ]))
+    };
     ($reason:expr) => {
         return Ok(SyscallResult::Failure(vec![Felt252::from_bytes_be_slice($reason)]))
     };
@@ -1035,7 +1041,7 @@ impl<'a> CairoHintProcessor<'a> {
 
         // Get the class hash of the contract.
         let Some(class_hash) = self.starknet_state.deployed_contracts.get(&contract_address) else {
-            fail_syscall!(b"CONTRACT_NOT_DEPLOYED");
+            fail_syscall!([b"CONTRACT_NOT_DEPLOYED", b"ENTRYPOINT_FAILED"]);
         };
 
         // Prepare runner for running the ctor.
@@ -1047,7 +1053,7 @@ impl<'a> CairoHintProcessor<'a> {
 
         // Call the function.
         let Some(entry_point) = contract_info.externals.get(&selector) else {
-            fail_syscall!(b"ENTRYPOINT_NOT_FOUND");
+            fail_syscall!([b"ENTRYPOINT_NOT_FOUND", b"ENTRYPOINT_FAILED"]);
         };
 
         let old_addrs = self.starknet_state.open_caller_context((
@@ -1085,7 +1091,7 @@ impl<'a> CairoHintProcessor<'a> {
 
         // Call the function.
         let Some(entry_point) = contract_info.externals.get(&selector) else {
-            fail_syscall!(b"ENTRYPOINT_NOT_FOUND");
+            fail_syscall!([b"ENTRYPOINT_NOT_FOUND", b"ENTRYPOINT_FAILED"]);
         };
         match self.call_entry_point(gas_counter, runner, entry_point, calldata, vm) {
             Ok((res_data_start, res_data_end)) => {
diff --git a/crates/cairo-lang-starknet/cairo_level_tests/interoperability.cairo b/crates/cairo-lang-starknet/cairo_level_tests/interoperability.cairo
index 055bb18b0ad..2892567fb0f 100644
--- a/crates/cairo-lang-starknet/cairo_level_tests/interoperability.cairo
+++ b/crates/cairo-lang-starknet/cairo_level_tests/interoperability.cairo
@@ -108,7 +108,7 @@ fn test_class_hash_not_found() {
 }
 
 #[test]
-#[should_panic(expected: ('CONTRACT_NOT_DEPLOYED',))]
+#[should_panic(expected: ('CONTRACT_NOT_DEPLOYED', 'ENTRYPOINT_FAILED',))]
 fn test_contract_not_deployed() {
     let mut contract = IContractDispatcher { contract_address: 5.try_into().unwrap() };
     contract.foo(10);