1 files changed, 16 insertions, 1 deletions
diff --git a/packages/taler-harness/src/harness/faultInjection.ts b/packages/taler-harness/src/harness/faultInjection.ts
index 4c3d0c123..f4d7fc4b9 100644
--- a/packages/taler-harness/src/harness/faultInjection.ts
+++ b/packages/taler-harness/src/harness/faultInjection.ts
@@ -47,6 +47,10 @@ export interface FaultInjectionRequestContext {
   requestHeaders: Record<string, string | string[] | undefined>;
   requestBody?: Buffer;
   dropRequest: boolean;
+  // These are only used when the request is dropped
+  substituteResponseBody?: Buffer;
+  substituteResponseStatusCode?: number;
+  substituteResponseHeaders?: Record<string, string | string[] | undefined>;
 }
 
 export interface FaultInjectionResponseContext {
@@ -101,7 +105,18 @@ export class FaultProxy {
         }
 
         if (faultReqContext.dropRequest) {
-          res.destroy();
+          if (faultReqContext.substituteResponseStatusCode) {
+            const statusCode = faultReqContext.substituteResponseStatusCode;
+            res.writeHead(
+              statusCode,
+              http.STATUS_CODES[statusCode],
+              faultReqContext.substituteResponseHeaders,
+            );
+            res.write(faultReqContext.substituteResponseBody);
+            res.end();
+          } else {
+            res.destroy();
+          }
           return;
         }