Smack/smack-integration-test/src/main/java/org/igniterealtime/smack/inttest/package-info.java

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/**
*
* Copyright 2015-2023 Florian Schmaus
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* The Smack Integration Test Framework (sinttest) used to run a set of tests against a real XMPP service. The framework
* discovers on start-up the available tests by reflection.
* <h2>Quickstart</h2>
* <p>
* You can run the framework against an XMPP service with
* </p>
*
* <pre>
* $ gradle integrationTest -Dsinttest.service=my.xmppservice.org
* </pre>
* <p>
* Note that the service needs to have In-Band Registration (IBR) enabled.
* </p>
* <p>
* A better alternative to IBR is using XEP-0133: Service Administration to create the throw away accounts used by the
* integration test framework. Simply use
* </p>
*
* <pre>
* $ gradle integrationTest -Dsinttest.service=my.xmppservice.org \
* -Dsinttest.adminAccountUsername=admin \
* -Dsinttest.adminAccountPassword=aeR0Wuub
* </pre>
* <p>
* to run Smack's integration test framework against my.xmppservice.org with an admin account named 'admin' and
* 'aeR0Wuub' as password.
* </p>
* <h2>Configuration</h2>
* <p>
* The framework is configured with a standard Java properties file. This file simply contains key/value pairs, which
* are separated by an equals sign ("="). The most important configuration value is the `service` value, it's also the
* only required setting.
* </p>
* <p>
* The file properties can be overridden with Java system properties. The name of a system property that is used by the
* framework needs to be prefixed with 'sinttest.' (*S*mack *Int*egration *Test* Framework). For example the `service`
* property becomes `sinttest.service`.
* </p>
* <h3>Minimal example 'properties' file</h3>
*
* <pre>
* service = example.org
* </pre>
*
* <h3>Another example 'properties' file</h3>
*
* <pre>
* service=example.org
* serviceTlsPin=CERTSHA256:2F:92:C9:4D:30:58:E1:05:21:9A:57:59:5F:6E:25:9A:0F:BF:FF:64:1A:C3:4B:EC:06:7D:4A:6F:0A:D5:21:85
* debugger=console
* </pre>
*
* <h3>Framework properties</h3>
* <table border="1">
* <caption>Properties of the Smack Integration Test Framework</caption>
* <tr>
* <th>Name</th>
* <th>Description</th>
* </tr>
* <tr>
* <td>service</td>
* <td>XMPP service to run the tests on</td>
* </tr>
* <tr>
* <td>serviceTlsPin</td>
* <td>TLS Pin (used by <a href="https://github.com/Flowdalic/java-pinning">java-pinning</a>)</td>
* </tr>
* <tr>
* <td>securityMode</td>
* <td>Either required or disabled</td>
* </tr>
* <tr>
* <td>replyTimeout</td>
* <td>In milliseconds</td>
* </tr>
* <tr>
* <td>adminAccountUsername</td>
* <td>Username of the XEP-0133 Admin account</td>
* </tr>
* <tr>
* <td>adminAccountPassword</td>
* <td>Password of the XEP-0133 Admin account</td>
* </tr>
* <tr>
* <td>accountOneUsername</td>
* <td>Username of the first XMPP account</td>
* </tr>
* <tr>
* <td>accountOnePassword</td>
* <td>Password of the first XMPP account</td>
* </tr>
* <tr>
* <td>accountTwoUsername</td>
* <td>Username of the second XMPP account</td>
* </tr>
* <tr>
* <td>accountTwoPassword</td>
* <td>Password of the second XMPP account</td>
* </tr>
* <tr>
* <td>accountThreeUsername</td>
* <td>Username of the third XMPP account</td>
* </tr>
* <tr>
* <td>accountThreePassword</td>
* <td>Password of the third XMPP account</td>
* </tr>
* <tr>
* <td>debugger</td>
* <td>console for console debugger, enhanced for the enhanced debugger</td>
* </tr>
* <tr>
* <td>enabledTests</td>
* <td>List of enabled tests</td>
* </tr>
* <tr>
* <td>disabledTests</td>
* <td>List of disabled tests</td>
* </tr>
* <tr>
* <td>defaultConnection</td>
* <td>Nickname of the default connection</td>
* </tr>
* <tr>
* <td>enabledConnections</td>
* <td>List of enabled connections nicknames</td>
* </tr>
* <tr>
* <td>disabledConnections</td>
* <td>List of disabled connections nicknames</td>
* </tr>
* <tr>
* <td>testPackages</td>
* <td>List of packages with tests</td>
* </tr>
* <tr>
* <td>verbose</td>
* <td>If <code>true</code> set output to verbose</td>
* </tr>
* <tr>
* <td>dnsResolver</td>
* <td>One of minidns, javax or dnsjava. Defaults to minidns.</td>
* </tr>
* </table>
* <h3>Where to place the properties file</h3>
* <p>
* The framework will first load the properties file from <code>~/.config/smack-integration-test/properties</code>.
* </p>
* <h3>Running selected tests only</h3>
* <p>
* Using <code>enabledTests</code> is is possible to run only selected tests. The tests can be selected on a per class
* base or by specifying concrete test methods. In the latter case, the methods must be qualified by a (simple) class
* name.
* </p>
* <p>
* For example:
* </p>
*
* <pre>
* $ gradle integrationTest -Dsinttest.enabledTests=SoftwareInfoIntegrationTest.test
* </pre>
* <p>
* will only run the <code>test()</code> method of <code>SoftwareInfoIntegrationTest</code>, whereas
* </p>
*
* <pre>
* $ gradle integrationTest -Dsinttest.enabledTests=SoftwareInfoIntegrationTest
* </pre>
* <p>
* would run all tests defined in the <code>SoftwareInfoIntegrationTest</code> class.
* </p>
* <h2>Overview of the components</h2>
* <p>
* Package <code>org.igniterealtime.smack.inttest</code>
* </p>
* <h3>SmackIntegrationTestFramework</h3>
* <p>
* Contains <code>public static void main</code> method, i.e. the entry point for the framework. Here the available
* integration tests are discovered by means of reflection, the configuration is read and a
* <code>IntegrationTestEnvironment</code> instance created, which includes the XMPP connections.
* </p>
* <h3>AbstractSmackIntegrationTest</h3>
* <p>
* The base class that integration tests need to subclass.
* </p>
* <h3>AbstractSmackLowLevelIntegrationTest</h3>
* <p>
* Allows low level integration test, i.e. every test method will have its own exclusive XMPPTCPConnection instances.
* </p>
* <h3>AbstractSmackSpecificLowLevelIntegrationTest</h3>
* <p>
* Operates, like <code>AbstractSmackLowLevelIntegrationTest</code>, on its own <code>XMPPConnection</code> instances,
* but is limited to a particular type of <code>XMPPConnection</code>.
* </p>
* <h3>IntegrationTestEnvironment</h3>
* <p>
* The environment, e.g. the `XMPPConnections` provided to the integration tests by the framework. Note that for
* convenience `AbstractSmackIntegrationTest` contains some of those as protected members.
* </p>
* <h3>SmackIntegrationTest</h3>
* <p>
* An annotation that needs to be added to all methods that represent a single integration test. Annotated integration
* test methods must not take any arguments, i.e., their parameter count is 0, and should return void as it's not
* evaluated in any way. The methods are supposed to throw an exception if their integration test fails.
* </p>
* <h3>TestNotPossibleException</h3>
* <p>
* Can be thrown by test methods or constructors to signal that their test is not possible, e.g. because the service
* does not support the required feature.
* </p>
* <h2>Running the integration tests</h2>
* <p>
* Smack's Gradle build system is configured with a special task called `integrationTest`, which means you can run the
* tests simply with
* </p>
*
* <pre>{@code
* $ gradle integrationTest -Dsinttest.service=my.xmppservice.org
* }</pre>
* <p>
* If one of <code>accountOneUsername</code>, <code>accountOnePassword</code>, <code>accountTwoUsername</code> or
* <code>accountTwoPassword</code> is not configured, then the framework will automatically create the accounts on the
* service. Of course this requires account registration (IBR) to be enabled. If the accounts got created automatically
* by the framework, then they will also be deleted at the end of the test.
* </p>
* <h2>Implementing Integration Tests</h2>
* <p>
* Create a new class which extends <code>AbstractSmackIntegrationTest</code>. Every non-static method, including the
* constructor, of this class will have two XMPPConnections available to perform the integration tests with:
* <code>conOne</code> and <code>conTwo</code>. You can use the constructor to check if the XMPP service does provide
* the required XMPP feature. If it does not, simply throw a <code>TestNotPossibleException</code>.
* </p>
* <p>
* Test methods must be <code>public</code>, take zero arguments i.e. declare no parameters and be annoated with
* <code>@SmackIntegrationTest</code>. If the test method is not able to perform a test then it should throw a
* <code>TestNotPossibleException</code>.
* </p>
* <h3>Rules for integration tests</h3>
* <p>
* Tests should not leave any traces on the service if they are finished, i.e. the service state at the end of the test
* must be equal to the state of the beginning. It must be possible to run the tests in parallel.
* </p>
* <h3>Why are there two mechanisms to signal that the test is not possible?</h3>
* <p>
* Because the XMPP service may provide a component that is required to perform a certain integration test, but that
* component may not support all features. For example, the XMPP service may provides a PubSub (XEP-0060) component, but
* this component may not support all features of XEP-0060.
* </p>
* <h3>Low-Level Integration Tests</h3>
* <p>
* Classes that implement low-level integration tests need to sublcass
* {@link org.igniterealtime.smack.inttest.AbstractSmackLowLevelIntegrationTest}. The test methods can declare as many
* parameters as they need to, but every parameter must be of type <code>XMPPTCPConnection</code>. The framework will
* automatically create, register and login the connections. After the test is finished, the connections will be
* unregistered with the XMPP service and terminated.
* </p>
* <h2>Debugging Integration Tests</h2>
* <p>
* A test, like any other code, may not be perfect on the first attempt, and you may require more information in order
* to ascertain quite what's wrong.
* </p>
* <h3>Smack Debugger Options</h3>
* <p>
* As described in the package documentation of org.jivesoftware.smack.debugger, there are two built-in debuggers that
* could surface you more information. Using the 'enhanced' debugger config option listed above, you'll get the Smack
* Debug Window launching when your tests launch, and you'll get a stanza-by-stanza account of what happened on each
* connection, hopefully enough to diagnose what went wrong.
* </p>
* <h3>Debugging in the IDE</h3>
* <p>
* If the output isn't enough, you may need to debug and inspect running code within the IDE. Depending on the IDE, in
* order to get execution to pause at your breakpoints, you may need to switch your configuration. Instead of running
* `gradle integrationTest`, instead run the `SmackIntegrationTestFramework` class directly with the same command-line
* options.
* </p>
* <h2>Running Your Own Integration Tests</h2>
* <p>
* The framework can be used to run your own tests residing outside of the framework's default package scope. Simply set
* the <code>testPackages</code> property to a comma separated list of package names where the framework should look for
* integration tests.
* </p>
* <p>
* Example:
* </p>
*
* <pre>{@code
* $ gradle integrationTest -Dsinttest.service=my.xmppserivce.org -Dsinttest.testPackages=org.mypackage,org.otherpackage
* }</pre>
*/
package org.igniterealtime.smack.inttest;