@@ -833,6 +833,84 @@ public void scheduleJobShouldThrowWhenNameInRequestIsEmpty() {
833833 assertEquals ("Name in the request cannot be null or empty" , exception .getMessage ());
834834 }
835835
836+ @ Test
837+ public void scheduleJobShouldThrowWhenNameAlreadyExists () {
838+ AtomicInteger callCount = new AtomicInteger (0 );
839+
840+ doAnswer (invocation -> {
841+ StreamObserver <DaprProtos .ScheduleJobResponse > observer = invocation .getArgument (1 );
842+ if (callCount .incrementAndGet () == 1 ) {
843+ // First call succeeds
844+ observer .onCompleted ();
845+ } else {
846+ // Second call fails with ALREADY_EXISTS
847+ observer .onError (newStatusRuntimeException ("ALREADY_EXISTS" , "Job with name 'testJob' already exists" ));
848+ }
849+ return null ;
850+ }).when (daprStub ).scheduleJobAlpha1 (any (DaprProtos .ScheduleJobRequest .class ), any ());
851+
852+ // First call should succeed
853+ ScheduleJobRequest firstRequest = new ScheduleJobRequest ("testJob" , Instant .now ());
854+ assertDoesNotThrow (() -> previewClient .scheduleJob (firstRequest ).block ());
855+
856+ ArgumentCaptor <DaprProtos .ScheduleJobRequest > captor =
857+ ArgumentCaptor .forClass (DaprProtos .ScheduleJobRequest .class );
858+
859+ verify (daprStub , times (1 )).scheduleJobAlpha1 (captor .capture (), Mockito .any ());
860+ DaprProtos .ScheduleJobRequest actualScheduleJobRequest = captor .getValue ();
861+ DaprProtos .Job job = actualScheduleJobRequest .getJob ();
862+ assertEquals ("testJob" , job .getName ());
863+ assertFalse (job .hasData ());
864+ assertEquals (0 , job .getRepeats ());
865+ assertFalse (job .hasTtl ());
866+
867+ // Second call with same name should fail
868+ ScheduleJobRequest secondRequest = new ScheduleJobRequest ("testJob" , Instant .now ());
869+
870+ assertThrowsDaprException (
871+ ExecutionException .class ,
872+ "ALREADY_EXISTS" ,
873+ "ALREADY_EXISTS: Job with name 'testJob' already exists" ,
874+ () -> previewClient .scheduleJob (secondRequest ).block ());
875+ }
876+
877+ @ Test
878+ public void scheduleJobShouldSucceedWhenNameAlreadyExistsWithOverwrite () {
879+ doAnswer (invocation -> {
880+ StreamObserver <DaprProtos .ScheduleJobResponse > observer = invocation .getArgument (1 );
881+ observer .onCompleted (); // Simulate successful response for both calls
882+ return null ;
883+ }).when (daprStub ).scheduleJobAlpha1 (any (DaprProtos .ScheduleJobRequest .class ), any ());
884+
885+ // First call should succeed
886+ ScheduleJobRequest firstRequest = new ScheduleJobRequest ("testJob" , Instant .now ());
887+ assertDoesNotThrow (() -> previewClient .scheduleJob (firstRequest ).block ());
888+
889+ // Second call with same name but overwrite=true should also succeed
890+ ScheduleJobRequest secondRequest = new ScheduleJobRequest ("testJob" , Instant .now ())
891+ .setOverwrite (true );
892+ assertDoesNotThrow (() -> previewClient .scheduleJob (secondRequest ).block ());
893+
894+ // Verify that both calls were made successfully
895+ ArgumentCaptor <DaprProtos .ScheduleJobRequest > captor =
896+ ArgumentCaptor .forClass (DaprProtos .ScheduleJobRequest .class );
897+ verify (daprStub , times (2 )).scheduleJobAlpha1 (captor .capture (), any ());
898+
899+ // Verify the first call doesn't have overwrite set
900+ DaprProtos .ScheduleJobRequest firstActualRequest = captor .getAllValues ().get (0 );
901+ assertFalse (firstActualRequest .getJob ().getOverwrite ());
902+ assertEquals ("testJob" , firstActualRequest .getJob ().getName ());
903+
904+ // Verify the second call has overwrite set to true
905+ DaprProtos .ScheduleJobRequest secondActualRequest = captor .getAllValues ().get (1 );
906+ assertTrue (secondActualRequest .getJob ().getOverwrite ());
907+ assertEquals ("testJob" , secondActualRequest .getJob ().getName ());
908+ }
909+
910+
911+
912+
913+
836914 @ Test
837915 public void getJobShouldReturnResponseWhenAllFieldsArePresentInRequest () {
838916 DateTimeFormatter iso8601Formatter = DateTimeFormatter .ofPattern ("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'" )
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