public Namespace findBranch(String appId, String parentClusterName, String namespaceName) {
    return namespaceService.findChildNamespace(appId, parentClusterName, namespaceName);
  }
@Test
  @Sql(scripts = "/sql/namespace-branch-test.sql", executionPhase = Sql.ExecutionPhase.BEFORE_TEST_METHOD)
  @Sql(scripts = "/sql/clean.sql", executionPhase = Sql.ExecutionPhase.AFTER_TEST_METHOD)
  public void testFindBranch() {
    Namespace branch = namespaceBranchService.findBranch(testApp, testCluster, testNamespace);

    Assert.assertNotNull(branch);
    Assert.assertEquals(testBranchName, branch.getClusterName());
  }