fixed flaky test

Signed-off-by: kcruz28 <[email protected]>

Author: Kcruz28

cluster-operator/src/test/java/io/strimzi/operator/cluster/operator/assembly/KafkaMirrorMaker2AssemblyOperatorPodSetTest.java

@@ -427,7 +427,9 @@ public void testScaleDownCluster(VertxTestContext context)  {
 
                     assertThat(mm2Status.getUrl(), is("http://my-mm2-mirrormaker2-api.my-namespace.svc:8083"));
                     assertThat(mm2Status.getReplicas(), is(3));
-                    assertThat(mm2Status.getLabelSelector(), is("strimzi.io/cluster=my-mm2,strimzi.io/name=my-mm2-mirrormaker2,strimzi.io/kind=KafkaMirrorMaker2"));
+                    Set<String> expectedLabels = Set.of("strimzi.io/cluster=my-mm2", "strimzi.io/name=my-mm2-mirrormaker2", "strimzi.io/kind=KafkaMirrorMaker2");
+                    Set<String> actualLabels = Set.of(mm2Status.getLabelSelector().split(","));
+                    assertThat(actualLabels, is(expectedLabels));
                     assertThat(mm2Status.getConditions().get(0).getStatus(), is("True"));
                     assertThat(mm2Status.getConditions().get(0).getType(), is("Ready"));