test that shows getRowsUpdated returns 0 in upsert

src/test/java/io/r2dbc/mssql/TransactionIntegrationTests.java

@@ -373,6 +373,58 @@ void shouldResetLockTimeoutAfterTransaction() {
             .verifyComplete();
     }
 
+    @Test
+    void shouldGetRowsUpdatedInUpsert() throws Exception {
+        createTable(connection);
+        String insertSql = "INSERT INTO r2dbc_example (id, first_name, last_name) VALUES(1, 'Jessi', 'Pinkmann')";
+
+
+        reactor.core.publisher.Flux<Long> flux = connection
+                .createStatement(insertSql)
+                .execute()
+                .flatMap(MssqlResult::getRowsUpdated);
+
+        java.util.concurrent.CompletableFuture<Long> future = reactor.core.publisher.Mono.from(flux).toFuture();
+        Long result = future.get(2, java.util.concurrent.TimeUnit.SECONDS);
+        org.junit.jupiter.api.Assertions.assertEquals(1L, result);
+
+        String updateSql = "UPDATE r2dbc_example SET id = 1, first_name = 'Jesse', last_name = 'Pinkman' WHERE id = 1";
+        reactor.core.publisher.Flux<Long> fluxUpdate = connection
+                .createStatement(updateSql)
+                .execute()
+                .flatMap(MssqlResult::getRowsUpdated);
+        java.util.concurrent.CompletableFuture<Long> futureUpdate = reactor.core.publisher.Mono.from(fluxUpdate).toFuture();
+        Long resultUpdate = futureUpdate.get(2, java.util.concurrent.TimeUnit.SECONDS);
+        org.junit.jupiter.api.Assertions.assertEquals(1L, resultUpdate);
+
+        //clean the state
+        createTable(connection);
+
+        String upsertSQl = updateSql + " if @@ROWCOUNT = 0 " + insertSql;
+        reactor.core.publisher.Flux<Long> fluxUpsert = connection
+                .createStatement(upsertSQl)
+                .execute()
+                .flatMap(MssqlResult::getRowsUpdated);
+
+        java.util.concurrent.CompletableFuture<Long> futureUpsert = reactor.core.publisher.Mono.from(fluxUpsert).toFuture();
+        Long resultUpsert = futureUpsert.get(2, java.util.concurrent.TimeUnit.SECONDS);
+
+        // should also have 1 updated row (from the insert part of the upsert)
+        org.junit.jupiter.api.Assertions.assertEquals(1L, resultUpsert);
+
+        reactor.core.publisher.Flux<Long> secondFluxUpsert = connection
+                .createStatement(upsertSQl)
+                .execute()
+                .flatMap(MssqlResult::getRowsUpdated);
+
+        java.util.concurrent.CompletableFuture<Long> secondFutureUpsert = reactor.core.publisher.Mono.from(secondFluxUpsert).toFuture();
+        Long secondResultUpsert = secondFutureUpsert.get(2, java.util.concurrent.TimeUnit.SECONDS);
+
+        // should also have 1 updated row (from the update part of the upsert)
+        org.junit.jupiter.api.Assertions.assertEquals(1L, secondResultUpsert);
+    }
+
+
     Mono<IsolationLevel> getIsolationLevel() {
 
         return connection.createStatement("SELECT CASE transaction_isolation_level \n" +