MODTLR-19 Add GET mapping for transaction status

src/main/java/org/folio/client/feign/DcbClient.java

@@ -5,6 +5,7 @@
 import org.folio.domain.dto.TransactionStatusResponse;
 import org.folio.spring.config.FeignClientConfiguration;
 import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.PutMapping;
@@ -16,6 +17,9 @@ public interface DcbClient {
   @PostMapping("/ecs-tlr-transactions")
   DcbTransaction createDcbTransaction(DcbTransaction dcbTransaction);
 
+  @GetMapping("/transactions/{dcbTransactionId}/status")
+  TransactionStatusResponse getDcbTransactionStatus(@PathVariable String dcbTransactionId);
+
   @PutMapping("/transactions/{dcbTransactionId}/status")
   TransactionStatusResponse changeDcbTransactionStatus(@PathVariable String dcbTransactionId,
     @RequestBody TransactionStatus newStatus);

src/test/java/org/folio/client/DcbClientTest.java

@@ -33,12 +33,30 @@ void canCreateDcbTransaction() {
     assertEquals(response.getRequestId(), requestId);
   }
 
+  @Test
+  void canGetDcbTransactionStatus() {
+    String requestId = UUID.randomUUID().toString();
+    String transactionId = UUID.randomUUID().toString();
+    DcbTransaction dcbTransaction = new DcbTransaction()
+      .role(DcbTransaction.RoleEnum.BORROWER)
+      .requestId(requestId);
+    TransactionStatusResponse transactionStatusResponse = new TransactionStatusResponse()
+      .status(TransactionStatusResponse.StatusEnum.CANCELLED)
+      .message("test message")
+      .item(dcbTransaction.getItem())
+      .patron(dcbTransaction.getPatron())
+      .pickup(dcbTransaction.getPickup())
+      .requestId(requestId);
+    when(dcbClient.getDcbTransactionStatus(transactionId)).thenReturn(transactionStatusResponse);
+    var response = dcbClient.getDcbTransactionStatus(transactionId);
+    assertNotNull(response);
+    assertEquals(response.getStatus(), TransactionStatusResponse.StatusEnum.CANCELLED);
+  }
+
   @Test
   void canChangeDcbTransactionStatus() {
     String requestId = UUID.randomUUID().toString();
     String transactionId = UUID.randomUUID().toString();
-    TransactionStatus initialStatus = new TransactionStatus()
-      .status(TransactionStatus.StatusEnum.AWAITING_PICKUP);
     TransactionStatus targetStatus = new TransactionStatus()
       .status(TransactionStatus.StatusEnum.CANCELLED)
       .message("test message");