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// topic_test.h
//
// Unit tests for the topic class in the Paho MQTT C++ library.
//
/*******************************************************************************
* Copyright (c) 2020-2022 Frank Pagliughi <fpagliughi@mindspring.com>
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v2.0
* and Eclipse Distribution License v1.0 which accompany this distribution.
*
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v20.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
*******************************************************************************/
#define UNIT_TESTS
#include <algorithm>
#include <memory>
#include <stdexcept>
#include "catch2_version.h"
#include "mock_async_client.h"
#include "mqtt/topic.h"
using namespace mqtt;
/////////////////////////////////////////////////////////////////////////////
static const int DFLT_QOS = message::DFLT_QOS;
static const bool DFLT_RETAINED = message::DFLT_RETAINED;
static const std::string TOPIC{"my/topic/name"};
static const int QOS = 1;
static const bool RETAINED = true;
static const int BAD_LOW_QOS = -1;
static const int BAD_HIGH_QOS = 3;
static const char* BUF = "Hello there";
static const size_t N = std::strlen(BUF);
static const binary PAYLOAD{BUF};
static mqtt::mock_async_client cli;
// ----------------------------------------------------------------------
// Constructors
// ----------------------------------------------------------------------
TEST_CASE("basic ctor", "[topic]")
{
mqtt::topic topic{cli, TOPIC};
REQUIRE(static_cast<iasync_client*>(&cli) == &topic.get_client());
REQUIRE(TOPIC == topic.get_name());
REQUIRE(TOPIC == topic.to_string());
REQUIRE(DFLT_QOS == topic.get_qos());
REQUIRE(DFLT_RETAINED == topic.get_retained());
}
// ----------------------------------------------------------------------
TEST_CASE("full ctor", "[topic]")
{
mqtt::topic topic{cli, TOPIC, QOS, RETAINED};
REQUIRE(static_cast<iasync_client*>(&cli) == &topic.get_client());
REQUIRE(TOPIC == topic.get_name());
REQUIRE(TOPIC == topic.to_string());
REQUIRE(QOS == topic.get_qos());
REQUIRE(RETAINED == topic.get_retained());
}
// ----------------------------------------------------------------------
// get/set
// ----------------------------------------------------------------------
TEST_CASE("get/set", "[topic]")
{
mqtt::topic topic{cli, TOPIC};
REQUIRE(DFLT_QOS == topic.get_qos());
REQUIRE(DFLT_RETAINED == topic.get_retained());
SECTION("qos")
{
topic.set_qos(QOS);
REQUIRE(QOS == topic.get_qos());
REQUIRE_THROWS(topic.set_qos(BAD_LOW_QOS));
REQUIRE_THROWS(topic.set_qos(BAD_HIGH_QOS));
}
SECTION("retained")
{
topic.set_retained(RETAINED);
REQUIRE(RETAINED == topic.get_retained());
topic.set_retained(!RETAINED);
REQUIRE(!RETAINED == topic.get_retained());
}
}
TEST_CASE("split", "[topic]")
{
auto v = topic::split(TOPIC);
REQUIRE(3 == v.size());
REQUIRE("my" == v[0]);
REQUIRE("topic" == v[1]);
REQUIRE("name" == v[2]);
}
// ----------------------------------------------------------------------
// Publish
// ----------------------------------------------------------------------
TEST_CASE("publish C str", "[topic]")
{
mqtt::topic topic{cli, TOPIC, QOS, RETAINED};
auto tok = topic.publish(BUF, N);
REQUIRE(tok);
auto msg = tok->get_message();
REQUIRE(msg);
REQUIRE(TOPIC == msg->get_topic());
REQUIRE(msg->get_payload().data());
REQUIRE(0 == memcmp(BUF, msg->get_payload().data(), N));
REQUIRE(QOS == msg->get_qos());
REQUIRE(RETAINED == msg->is_retained());
}
// ----------------------------------------------------------------------
TEST_CASE("publish full C str", "[topic]")
{
mqtt::topic topic{cli, TOPIC};
auto tok = topic.publish(BUF, N, QOS, RETAINED);
REQUIRE(tok);
auto msg = tok->get_message();
REQUIRE(msg);
REQUIRE(TOPIC == msg->get_topic());
REQUIRE(msg->get_payload().data());
REQUIRE(0 == memcmp(BUF, msg->get_payload().data(), N));
REQUIRE(QOS == msg->get_qos());
REQUIRE(RETAINED == msg->is_retained());
}
// ----------------------------------------------------------------------
TEST_CASE("publish binary", "[topic]")
{
mqtt::topic topic{cli, TOPIC, QOS, RETAINED};
auto tok = topic.publish(PAYLOAD);
REQUIRE(tok);
auto msg = tok->get_message();
REQUIRE(msg);
REQUIRE(TOPIC == msg->get_topic());
REQUIRE(PAYLOAD == msg->get_payload());
REQUIRE(QOS == msg->get_qos());
REQUIRE(RETAINED == msg->is_retained());
}
// ----------------------------------------------------------------------
TEST_CASE("publish full binary", "[topic]")
{
mqtt::topic topic{cli, TOPIC};
auto tok = topic.publish(PAYLOAD, QOS, RETAINED);
REQUIRE(tok);
auto msg = tok->get_message();
REQUIRE(msg);
REQUIRE(TOPIC == msg->get_topic());
REQUIRE(PAYLOAD == msg->get_payload());
REQUIRE(QOS == msg->get_qos());
REQUIRE(RETAINED == msg->is_retained());
}
/////////////////////////////////////////////////////////////////////////////
// topic_filter
/////////////////////////////////////////////////////////////////////////////
TEST_CASE("topic has_wildcards", "[topic_filter]")
{
REQUIRE(!topic_filter::has_wildcards(TOPIC));
REQUIRE(topic_filter::has_wildcards("some/wild/+/topic"));
REQUIRE(topic_filter::has_wildcards("some/multi/wild/#"));
}
TEST_CASE("topic matches", "[topic_filter]")
{
SECTION("no_wildcards")
{
topic_filter filt{"my/topic/name"};
REQUIRE(filt.matches("my/topic/name"));
REQUIRE(!filt.matches("my/topic/name/but/longer"));
REQUIRE(!filt.matches("some/other/topic"));
}
// Test single-level wildcard, '+'
SECTION("single_wildcard")
{
topic_filter filt{"my/+/name"};
REQUIRE(filt.matches("my/topic/name"));
REQUIRE(filt.matches("my/other/name"));
REQUIRE(!filt.matches("my/other/id"));
}
// Test multi-level wildcard, '#'
SECTION("multi_wildcard")
{
topic_filter filt{"my/topic/#"};
REQUIRE(filt.matches("my/topic/name"));
REQUIRE(filt.matches("my/topic/id"));
REQUIRE(filt.matches("my/topic/name/and/id"));
REQUIRE(!filt.matches("my/other/name"));
REQUIRE(!filt.matches("my/other/id"));
}
// Th following sections are mostly borrowed from the Paho Python tests.
// They have a number of good corner cases that should and should not
// match.
SECTION("should_match")
{
REQUIRE(topic_filter{"foo/bar"}.matches("foo/bar"));
REQUIRE(
topic_filter{
"foo/+",
}
.matches("foo/bar")
);
REQUIRE(topic_filter{"foo/+/baz"}.matches("foo/bar/baz"));
REQUIRE(topic_filter{"foo/+/#"}.matches("foo/bar/baz"));
REQUIRE(topic_filter{"A/B/+/#"}.matches("A/B/B/C"));
REQUIRE(topic_filter{"#"}.matches("foo/bar/baz"));
REQUIRE(topic_filter{"#"}.matches("/foo/bar"));
REQUIRE(topic_filter{"/#"}.matches("/foo/bar"));
REQUIRE(topic_filter{"$SYS/bar"}.matches("$SYS/bar"));
REQUIRE(topic_filter{"$SYS/#"}.matches("$SYS/bar"));
REQUIRE(topic_filter{"foo/#"}.matches("foo/$bar"));
REQUIRE(topic_filter{"foo/+/baz"}.matches("foo/$bar/baz"));
}
SECTION("should_not_match")
{
REQUIRE(!topic_filter{"test/6/#"}.matches("test/3"));
REQUIRE(!topic_filter{"foo/bar"}.matches("foo"));
REQUIRE(!topic_filter{"foo/+"}.matches("foo/bar/baz"));
REQUIRE(!topic_filter{"foo/+/baz"}.matches("foo/bar/bar"));
REQUIRE(!topic_filter{"foo/+/#"}.matches("fo2/bar/baz"));
REQUIRE(!topic_filter{"/#"}.matches("foo/bar"));
REQUIRE(!topic_filter{"#"}.matches("$SYS/bar"));
REQUIRE(!topic_filter{"$BOB/bar"}.matches("$SYS/bar"));
REQUIRE(!topic_filter{"+/bar"}.matches("$SYS/bar"));
}
}
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