Add failing test

zkevm-circuits/src/evm_circuit/execution/end_tx.rs

@@ -488,4 +488,29 @@ mod test {
             .unwrap(),
         );
     }
+
+    #[test]
+    fn end_tx_gadget_nonexisting_coinbase() {
+        test_ok(
+            TestContext::<2, 2>::new(
+                None,
+                account_0_code_account_1_no_code(bytecode! {
+                    COINBASE
+                    EXTCODEHASH
+                }), // EXTCODEHASH will return 0 for the first tx and the empty code hash for the second tx.
+                |mut txs, accs| {
+                    txs[0]
+                        .to(accs[0].address)
+                        .from(accs[1].address)
+                        .value(eth(1));
+                    txs[1]
+                        .to(accs[0].address)
+                        .from(accs[1].address)
+                        .value(eth(1));
+                },
+                |block, _| block,
+            )
+            .unwrap(),
+        );
+    }
 }