Myasuka commented on a change in pull request #18912:
URL: https://github.com/apache/flink/pull/18912#discussion_r816759546



##########
File path: 
flink-clients/src/test/java/org/apache/flink/client/cli/CliFrontendStopWithSavepointTest.java
##########
@@ -133,6 +134,31 @@ public void testStopWithExplicitSavepointType() throws 
Exception {
                     assertThat(jobID, is(jid));
                     assertThat(advanceToEndOfEventTime, is(false));
                     assertThat(savepointDirectory, is("test-target-dir"));
+                    assertThat(formatType, is(expectedFormat));
+                    stopWithSavepointLatch.trigger();
+                    return 
CompletableFuture.completedFuture(savepointDirectory);
+                });
+        MockedCliFrontend testFrontend = new MockedCliFrontend(clusterClient);
+        testFrontend.stop(parameters);
+        stopWithSavepointLatch.await();
+    }
+
+    @Test
+    public void testStopWithExplicitSavepointTypeLongOption() throws Exception 
{

Review comment:
       This is also true for these two test mthods, we can certainly avoid code 
duplication via introducing a base private test method with a parameter of 
option key.

##########
File path: 
flink-clients/src/test/java/org/apache/flink/client/cli/CliFrontendSavepointTest.java
##########
@@ -200,7 +196,40 @@ public void testTriggerSavepointCustomFormat() throws 
Exception {
             MockedCliFrontend frontend = new MockedCliFrontend(clusterClient);
 
             String[] parameters = {
-                jobId.toString(), savepointDirectory, "-type", 
SavepointFormatType.NATIVE.toString()
+                jobId.toString(), savepointDirectory, "-t", 
SavepointFormatType.NATIVE.toString()
+            };
+            frontend.savepoint(parameters);
+
+            verify(clusterClient, times(1))
+                    .triggerSavepoint(
+                            eq(jobId), eq(savepointDirectory), 
eq(SavepointFormatType.NATIVE));
+
+            assertTrue(buffer.toString().contains(savepointDirectory));
+        } finally {
+            clusterClient.close();
+
+            restoreStdOutAndStdErr();
+        }
+    }
+
+    @Test
+    public void testTriggerSavepointCustomFormatLongOption() throws Exception {

Review comment:
       I think the only difference of these two test methods is the option, one 
is `-t` and another is `--type`. We could use one base private method which 
contains the main body and two test case with different option key to reduce 
code duplication.




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