String getOwnerId(TbContext ctx) {
        return "Tenant[" + ctx.getTenantId().getId() + "]RuleNode[" + ctx.getSelf().getId().getId() + "]";
    }
@Test
    public void verifyGetOwnerIdMethod() {
        given(ctxMock.getTenantId()).willReturn(TENANT_ID);
        given(ctxMock.getSelf()).willReturn(new RuleNode(RULE_NODE_ID));

        String actualOwnerIdStr = mqttNode.getOwnerId(ctxMock);
        String expectedOwnerIdStr = "Tenant[" + TENANT_ID.getId() + "]RuleNode[" + RULE_NODE_ID.getId() + "]";
        assertThat(actualOwnerIdStr).isEqualTo(expectedOwnerIdStr);
    }