add back in fossil processor validation

src/fossil_client/contract.cairo

@@ -82,14 +82,15 @@ mod FossilClient {
             // (timestamp & program id)/outputs (l1 data)/proof
 
             // @note Skipping for now for testnet testing
-            //   assert(
-            //       get_caller_address() == self.fossil_processor.read(),
-            //       Errors::CallerNotFossilProcessor
-            //   );
+               assert(
+                   get_caller_address() == self.fossil_processor.read(),
+                   Errors::CallerNotFossilProcessor
+               );
 
             // Relay L1 data to the vault
             IVaultDispatcher { contract_address: vault_address }
                 .fossil_client_callback(l1_data, timestamp);
+
             // Emit callback success event
             self
                 .emit(

src/tests/option_round/state_transition/fulfill_request_tests.cairo

@@ -83,7 +83,6 @@ fn get_request_serialized(ref vault: VaultFacade) -> Span<felt252> {
 // @note Un-ignore this after Fossil processor is setup
 #[test]
 #[available_gas(50000000)]
-#[ignore]
 fn test_only_fossil_processor_can_call_fossil_callback() {
     let (mut vault, _) = setup_facade();
     let fossil_client = vault.get_fossil_client_facade();

src/tests/utils/facades/fossil_client_facade.cairo

@@ -3,6 +3,7 @@ use crate::fossil_client::interface::{
     IFossilClientSafeDispatcherTrait
 };
 use crate::tests::utils::helpers::setup::FOSSIL_PROCESSOR;
+use starknet::testing::set_contract_address;
 // add this and tests
 
 // test only fossil processor can call the client (fossil_callback)
@@ -27,6 +28,7 @@ impl FossilClientFacadeImpl of FossilClientFacadeTrait {
 
     /// Entrypoints
     fn fossil_callback(self: FossilClientFacade, request: Span<felt252>, result: Span<felt252>) {
+      set_contract_address(FOSSIL_PROCESSOR());
         self.dispatcher().fossil_callback(request, result);
     }