@Test
  public void test_canAttachFile_success() {
    ContentEntityObject contentEntityObject = new Page();

    when(mockUserManager.getRemoteUsername()).thenReturn(SOME_USER1.getName());
    when(mockUserAccessor.getUser(SOME_USER1.getName())).thenReturn(SOME_USER1);
    when(mockPermissionManager.hasCreatePermission(
            SOME_USER1, contentEntityObject, Attachment.class))
        .thenReturn(true);

    boolean result = classUnderTest.canAttachFile(contentEntityObject);

    assertThat(result, is(true));
  }