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<h1 class="page-title">Tutorial: advanced-parallelization-2</h1>
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<h2>advanced-parallelization-2</h2>
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<p>Here we demonstrate why some new features of Suman are needed.</p>
<p>We need to use the value option of a test case, and the t.data object to pass data between test cases and hooks.</p>
<p>If we used shared scope to store data, it may get shared between different test cases which will result in</p>
<p>a test failure.</p>
<p>We don't want to share data when running test cases / hooks in parallel, because this absolutely introduces race
conditions.</p>
<p>We don't necessarily need to create more copies of data, we simply need to attach the right data to the right place.</p>
<p>Similar to how we attach data to req in Express.</p>
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<h2><a href="index.html">Home</a></h2><h3>Tutorials</h3><ul><li><a href="tutorial-00-about.html">About Suman</a></li><li><a href="tutorial-01-getting-started.html">Getting Started with Suman</a></li><li><a href="tutorial-02-simple-examples.html">Simple Examples</a></li><li><a href="tutorial-03-high-level-overview.html">Higher Level Overview</a></li><li><a href="tutorial-04-command-line-options.html">Command line options</a></li><li><a href="tutorial-05-advanced-use.html">Advanced Use</a></li><li><a href="tutorial-06-suman-config-file.html">06-suman-config-file</a></li><li><a href="tutorial-07-suman-patterns-and-recipes.html">Suman Patterns and Recipes</a></li><li><a href="tutorial-08-suman-anti-patterns.html">Suman Anti-Patterns</a></li><li><a href="tutorial-09-suman-reporters.html">Suman reporters and creating custom reporters</a></li><li><a href="tutorial-10-dependency-injection.html">10-dependency-injection</a></li><li><a href="tutorial-11-advanced-installation.html">Advanced installation of Suman</a></li><li><a href="tutorial-12-using-suman-with-babel.html">Using Suman with Babel</a></li><li><a href="tutorial-13-test-dir-organization.html">How to organize your test directory</a></li><li><a href="tutorial-14-debugging-suman.html">How to debug Suman tests</a></li><li><a href="tutorial-15-testing-child-processes-with-suman.html">Testing and debugging processes that spawn child processes</a></li><li><a href="tutorial-16-using-spies-with-suman.html">Using test spies with Suman</a></li><li><a href="tutorial-17-suman-server-and-web-reporter.html">About Suman server and built-in web reporter</a></li><li><a href="tutorial-18-tips-and-tricks.html">Tips and tricks</a></li><li><a href="tutorial-19-converting-from-mocha.html">Converting from Mocha to Suman</a></li><li><a href="tutorial-21-running-suman-against-shell-scripts.html">21-running-suman-against-shell-scripts</a></li><li><a href="tutorial-22-case-studies.html">22-case-studies</a></li><li><a href="tutorial-22-programmatic-usage-and-macros.html">22-programmatic-usage-and-macros</a></li><li><a href="tutorial-27-suman-best-practices.html">Best practices with Suman</a></li><li><a href="tutorial-30-anatomy-of-suman-suite.html">Anatomy of Suman Test Suites</a></li><li><a href="tutorial-31-workflows-with-suman.html">Workflows with Suman => Watchers and transpilation</a></li><li><a href="tutorial-40-integrating-with-ci-cd.html">Integrating with CI/CD</a></li><li><a href="tutorial-41-suman-exit-codes.html">List of Suman exit codes</a></li><li><a href="tutorial-42-hidden-secret-features.html">Some secret / hidden features of Suman</a></li><li><a href="tutorial-50-suman-parallelism.html">Complete explanation of Suman parallelism</a></li><li><a href="tutorial-70-usage-with-code-coverage-tools.html">Usage with code coverage tools (namely Istanbul)</a></li><li><a href="tutorial-90-roadmap.html">Suman roadmap and upcoming efforts</a></li><li><a href="tutorial-99-faq.html">FAQ</a></li><li><a href="tutorial-advanced-parallelization-2.html">advanced-parallelization-2</a></li></ul>
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