[tests] Remove the "catch" usages (#557)

Author: slinkydeveloper

packages/restate-e2e-services/src/interpreter/interpreter.ts

@@ -172,15 +172,20 @@ class ProgramInterpreter {
           break;
         }
         case CommandType.RECOVER_TERMINAL_MAYBE_UN_AWAITED: {
-          const promise = ctx.serviceClient(Service).terminalFailure();
+          const promise = ctx
+            .serviceClient(Service)
+            .terminalFailure()
+            .map((_v, f) => {
+              if (f) {
+                return "terminal";
+              } else {
+                throw new restate.TerminalError("unexpectedly succeeded");
+              }
+            });
           promises.set(i, {
-            thunk: () => promise.catch(() => "terminal"),
+            thunk: () => promise,
             expected: "terminal",
           });
-          // failed and unchained promises in Node will cause the process to exit.
-          promise.catch(() => {
-            /* safety */
-          });
           break;
         }
         case CommandType.THROWING_SIDE_EFFECT: {
@@ -232,14 +237,17 @@ class ProgramInterpreter {
         }
         case CommandType.REJECT_AWAKEABLE: {
           const { id, promise } = ctx.awakeable<string>();
+          const mapped = promise.map((_v, f) => {
+            if (f) {
+              return "rejected";
+            } else {
+              throw new restate.TerminalError("unexpectedly succeeded");
+            }
+          });
           promises.set(i, {
-            thunk: () => promise.catch(() => "rejected"),
+            thunk: () => mapped,
             expected: "rejected",
           });
-          // failed and unchained promises in Node will cause the process to exit.
-          promise.catch(() => {
-            /* safety */
-          });
           ctx.serviceSendClient(Service).rejectAwakeable(id);
           break;
         }
@@ -267,7 +275,7 @@ class ProgramInterpreter {
           promises.set(i, { thunk: () => promise });
           // safety: we must at least add a catch handler otherwise if the call results with a terminal exception propagated
           // and Node will cause this process to exit.
-          promise.catch(() => {});
+          // promise.catch(() => {});
           break;
         }
       }