testng-parallel.xml

<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd">
<!--
    Module 19 introduces a deliberately conservative parallel suite.

    TestNG parallelism is configured at suite level because the suite file is
    the execution contract passed to Maven Surefire through:

        mvn test -DsuiteXmlFile=testng-parallel.xml

    parallel="classes" means TestNG may run different <class> entries at the
    same time. It does not split methods inside the same class across threads.
    That is safer for this learning framework because many classes still use
    class-level setup/teardown and learner-readable fixture structure.

    thread-count="3" is intentionally small. Parallel execution should be
    expanded with evidence, not by turning every test loose at once.
-->
<suite name="Rest Assured Learning Parallel Smoke Suite" verbose="1" parallel="classes" thread-count="3">
    <listeners>
        <!--
            The Extent listener was made ThreadLocal-aware in Module 18.
            Without ThreadLocal, multiple parallel classes could write steps
            into the wrong ExtentTest instance.
        -->
        <listener class-name="com.learning.api.tests.listeners.ExtentReportListener"/>
    </listeners>
    <test name="parallel-safe local and stubbed checks">
        <classes>
            <!--
                These classes are intentionally chosen because they are either
                local-only, configuration-only, mapping-only, or WireMock-backed.
                The first parallel checkpoint avoids live state-changing CRUD
                flows against Restful Booker.
            -->
            <class name="com.learning.api.tests.framework.FrameworkConfigTest"/>
            <class name="com.learning.api.tests.framework.JacksonMappingTest"/>
            <class name="com.learning.api.tests.framework.BookingDataReaderTest"/>
            <class name="com.learning.api.tests.framework.SensitiveDataMaskerTest"/>
            <class name="com.learning.api.tests.wiremock.WireMockBookingErrorTest"/>
        </classes>
    </test>
</suite>