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<title>Testing — CodeIgniter 4.0.4 documentation</title>
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<li class="toctree-l1"><a class="reference internal" href="../intro/index.html">Welcome to CodeIgniter4</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../concepts/index.html">CodeIgniter4 Overview</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../concepts/mvc.html">Models, Views, and Controllers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../concepts/autoloader.html">Autoloading Files</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../concepts/services.html">Services</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../concepts/http.html">Working With HTTP Requests</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../concepts/security.html">Security Guidelines</a></li>
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</ul>
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<li class="toctree-l1"><a class="reference internal" href="../general/index.html">General Topics</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../general/configuration.html">Configuration</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/urls.html">CodeIgniter URLs</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/helpers.html">Helper Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/common_functions.html">Global Functions and Constants</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/logging.html">Logging Information</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/errors.html">Error Handling</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/caching.html">Web Page Caching</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/ajax.html">AJAX Requests</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/modules.html">Code Modules</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/managing_apps.html">Managing your Applications</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/environments.html">Handling Multiple Environments</a></li>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../incoming/index.html">Controllers and Routing</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/controllers.html">Controllers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/routing.html">URI Routing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/filters.html">Controller Filters</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/message.html">HTTP Messages</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/request.html">Request Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/incomingrequest.html">IncomingRequest Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/content_negotiation.html">Content Negotiation</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/methodspoofing.html">HTTP Method Spoofing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/restful.html">RESTful Resource Handling</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../outgoing/index.html">Building Responses</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/views.html">Views</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/view_cells.html">View Cells</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/view_renderer.html">View Renderer</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/view_layouts.html">View Layouts</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/view_parser.html">View Parser</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/table.html">HTML Table Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/response.html">HTTP Responses</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/api_responses.html">API Response Trait</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/localization.html">Localization</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../database/index.html">Working With Databases</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/events.html">Database Events</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../models/index.html">Modeling Data</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../models/model.html">Using CodeIgniter's Model</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../models/entities.html">Using Entity Classes</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../dbmgmt/index.html">Managing Databases</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../dbmgmt/forge.html">Database Manipulation with Database Forge</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../dbmgmt/migration.html">Database Migrations</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../dbmgmt/seeds.html">Database Seeding</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../libraries/index.html">Library Reference</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/caching.html">Caching Driver</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/curlrequest.html">CURLRequest Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/email.html">Email Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/encryption.html">Encryption Service</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/files.html">Working with Files</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/honeypot.html">Honeypot Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/images.html">Image Manipulation Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/pagination.html">Pagination</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/security.html">Security Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/sessions.html">Session Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/throttler.html">Throttler</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/time.html">Dates and Times</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/typography.html">Typography</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/uploaded_files.html">Working with Uploaded Files</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/uri.html">Working with URIs</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/user_agent.html">User Agent Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/validation.html">Validation</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/filesystem_helper.html">Filesystem Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/test_helper.html">Test Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
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</ul>
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</li>
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</ul>
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<ul class="current">
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<li class="toctree-l1 current"><a class="reference internal" href="index.html">Testing</a><ul class="current">
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<li class="toctree-l2 current"><a class="current reference internal" href="#">Getting Started</a></li>
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<li class="toctree-l2"><a class="reference internal" href="database.html">Database</a></li>
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<li class="toctree-l2"><a class="reference internal" href="fabricator.html">Generating Data</a></li>
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<li class="toctree-l2"><a class="reference internal" href="controllers.html">Controller Testing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="feature.html">HTTP Testing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="benchmark.html">Benchmarking</a></li>
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<li class="toctree-l2"><a class="reference internal" href="debugging.html">Debugging Your Application</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../cli/index.html">Command Line Usage</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli.html">Running via the Command Line</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_commands.html">Custom CLI Commands</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_generators.html">CLI Generators</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_library.html">CLI Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_request.html">CLIRequest Class</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../extending/index.html">Extending CodeIgniter</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../extending/core_classes.html">Creating Core System Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/common.html">Replacing Common Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/events.html">Events</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/basecontroller.html">Extending the Controller</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/authentication.html">Authentication</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/contributing.html">Contributing to CodeIgniter</a></li>
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</ul>
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</li>
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</div>
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<li><a href="index.html">Testing</a> »</li>
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|
||
<div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
|
||
<div itemprop="articleBody">
|
||
|
||
<div class="section" id="testing">
|
||
<h1>Testing<a class="headerlink" href="#testing" title="Permalink to this headline">¶</a></h1>
|
||
<p>CodeIgniter has been built to make testing both the framework and your application as simple as possible.
|
||
Support for <code class="docutils literal notranslate"><span class="pre">PHPUnit</span></code> is built in, and the framework provides a number of convenient
|
||
helper methods to make testing every aspect of your application as painless as possible.</p>
|
||
<div class="contents local topic" id="contents">
|
||
<ul class="simple">
|
||
<li><p><a class="reference internal" href="#system-set-up" id="id2">System Set Up</a></p>
|
||
<ul>
|
||
<li><p><a class="reference internal" href="#installing-phpunit" id="id3">Installing phpUnit</a></p></li>
|
||
</ul>
|
||
</li>
|
||
<li><p><a class="reference internal" href="#testing-your-application" id="id4">Testing Your Application</a></p>
|
||
<ul>
|
||
<li><p><a class="reference internal" href="#phpunit-configuration" id="id5">PHPUnit Configuration</a></p></li>
|
||
<li><p><a class="reference internal" href="#the-test-class" id="id6">The Test Class</a></p></li>
|
||
<li><p><a class="reference internal" href="#mocking-services" id="id7">Mocking Services</a></p></li>
|
||
<li><p><a class="reference internal" href="#stream-filters" id="id8">Stream Filters</a></p></li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
<div class="section" id="system-set-up">
|
||
<h2><a class="toc-backref" href="#id2">System Set Up</a><a class="headerlink" href="#system-set-up" title="Permalink to this headline">¶</a></h2>
|
||
<div class="section" id="installing-phpunit">
|
||
<h3><a class="toc-backref" href="#id3">Installing phpUnit</a><a class="headerlink" href="#installing-phpunit" title="Permalink to this headline">¶</a></h3>
|
||
<p>CodeIgniter uses <a class="reference external" href="https://phpunit.de/">phpUnit</a> as the basis for all of its testing. There are two ways to install
|
||
phpUnit to use within your system.</p>
|
||
<div class="section" id="composer">
|
||
<h4>Composer<a class="headerlink" href="#composer" title="Permalink to this headline">¶</a></h4>
|
||
<p>The recommended method is to install it in your project using <a class="reference external" href="https://getcomposer.org/">Composer</a>. While it’s possible
|
||
to install it globally we do not recommend it, since it can cause compatibility issues with other projects on your
|
||
system as time goes on.</p>
|
||
<p>Ensure that you have Composer installed on your system. From the project root (the directory that contains the
|
||
application and system directories) type the following from the command line:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o">></span> <span class="nx">composer</span> <span class="k">require</span> <span class="o">--</span><span class="nx">dev</span> <span class="nx">phpunit</span><span class="o">/</span><span class="nx">phpunit</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>This will install the correct version for your current PHP version. Once that is done, you can run all of the
|
||
tests for this project by typing:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o">></span> <span class="o">./</span><span class="nx">vendor</span><span class="o">/</span><span class="nx">bin</span><span class="o">/</span><span class="nx">phpunit</span>
|
||
</pre></div>
|
||
</div>
|
||
</div>
|
||
<div class="section" id="phar">
|
||
<h4>Phar<a class="headerlink" href="#phar" title="Permalink to this headline">¶</a></h4>
|
||
<p>The other option is to download the .phar file from the <a class="reference external" href="https://phpunit.de/getting-started/phpunit-7.html">phpUnit</a> site.
|
||
This is a standalone file that should be placed within your project root.</p>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<div class="section" id="testing-your-application">
|
||
<h2><a class="toc-backref" href="#id4">Testing Your Application</a><a class="headerlink" href="#testing-your-application" title="Permalink to this headline">¶</a></h2>
|
||
<div class="section" id="phpunit-configuration">
|
||
<h3><a class="toc-backref" href="#id5">PHPUnit Configuration</a><a class="headerlink" href="#phpunit-configuration" title="Permalink to this headline">¶</a></h3>
|
||
<p>The framework has a <code class="docutils literal notranslate"><span class="pre">phpunit.xml.dist</span></code> file in the project root. This controls unit
|
||
testing of the framework itself. If you provide your own <code class="docutils literal notranslate"><span class="pre">phpunit.xml</span></code>, it will
|
||
over-ride this.</p>
|
||
<p>Your <code class="docutils literal notranslate"><span class="pre">phpunit.xml</span></code> should exclude the <code class="docutils literal notranslate"><span class="pre">system</span></code> folder, as well as any <code class="docutils literal notranslate"><span class="pre">vendor</span></code> or
|
||
<code class="docutils literal notranslate"><span class="pre">ThirdParty</span></code> folders, if you are unit testing your application.</p>
|
||
</div>
|
||
<div class="section" id="the-test-class">
|
||
<h3><a class="toc-backref" href="#id6">The Test Class</a><a class="headerlink" href="#the-test-class" title="Permalink to this headline">¶</a></h3>
|
||
<p>In order to take advantage of the additional tools provided, your tests must extend <code class="docutils literal notranslate"><span class="pre">CIUnitTestCase</span></code>. All tests
|
||
are expected to be located in the <strong>tests/app</strong> directory by default.</p>
|
||
<p>To test a new library, <strong>Foo</strong>, you would create a new file at <strong>tests/app/Libraries/FooTest.php</strong>:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span> <span class="k">namespace</span> <span class="nx">App\Libraries</span><span class="p">;</span>
|
||
|
||
<span class="k">use</span> <span class="nx">CodeIgniter\Test\CIUnitTestCase</span><span class="p">;</span>
|
||
|
||
<span class="k">class</span> <span class="nc">FooTest</span> <span class="k">extends</span> <span class="nx">CIUnitTestCase</span>
|
||
<span class="p">{</span>
|
||
<span class="k">public</span> <span class="k">function</span> <span class="nf">testFooNotBar</span><span class="p">()</span>
|
||
<span class="p">{</span>
|
||
<span class="o">.</span> <span class="o">.</span> <span class="o">.</span>
|
||
<span class="p">}</span>
|
||
<span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>To test one of your models, you might end up with something like this in <code class="docutils literal notranslate"><span class="pre">tests/app/Models/OneOfMyModelsTest.php</span></code>:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span> <span class="k">namespace</span> <span class="nx">App\Models</span><span class="p">;</span>
|
||
|
||
<span class="k">use</span> <span class="nx">CodeIgniter\Test\CIUnitTestCase</span><span class="p">;</span>
|
||
|
||
<span class="k">class</span> <span class="nc">OneOfMyModelsTest</span> <span class="k">extends</span> <span class="nx">CIUnitTestCase</span>
|
||
<span class="p">{</span>
|
||
<span class="k">public</span> <span class="k">function</span> <span class="nf">testFooNotBar</span><span class="p">()</span>
|
||
<span class="p">{</span>
|
||
<span class="o">.</span> <span class="o">.</span> <span class="o">.</span>
|
||
<span class="p">}</span>
|
||
<span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>You can create any directory structure that fits your testing style/needs. When namespacing the test classes,
|
||
remember that the <strong>app</strong> directory is the root of the <code class="docutils literal notranslate"><span class="pre">App</span></code> namespace, so any classes you use must
|
||
have the correct namespace relative to <code class="docutils literal notranslate"><span class="pre">App</span></code>.</p>
|
||
<div class="admonition note">
|
||
<p class="admonition-title">Note</p>
|
||
<p>Namespaces are not strictly required for test classes, but they are helpful to ensure no class names collide.</p>
|
||
</div>
|
||
<p>When testing database results, you must use the <a class="reference external" href="database.html">CIDatabaseTestClass</a> class.</p>
|
||
<div class="section" id="staging">
|
||
<h4>Staging<a class="headerlink" href="#staging" title="Permalink to this headline">¶</a></h4>
|
||
<p>Most tests require some preparation in order to run correctly. PHPUnit’s <code class="docutils literal notranslate"><span class="pre">TestCase</span></code> provides four methods
|
||
to help with staging and clean up:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="k">public</span> <span class="k">static</span> <span class="k">function</span> <span class="nf">setUpBeforeClass</span><span class="p">()</span><span class="o">:</span> <span class="nx">void</span>
|
||
<span class="k">public</span> <span class="k">static</span> <span class="k">function</span> <span class="nf">tearDownAfterClass</span><span class="p">()</span><span class="o">:</span> <span class="nx">void</span>
|
||
<span class="k">public</span> <span class="k">function</span> <span class="nf">setUp</span><span class="p">()</span><span class="o">:</span> <span class="nx">void</span>
|
||
<span class="k">public</span> <span class="k">function</span> <span class="nf">tearDown</span><span class="p">()</span><span class="o">:</span> <span class="nx">void</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>The static methods run before and after the entire test case, whereas the local methods run
|
||
between each test. If you implement any of these special functions make sure you run their
|
||
parent as well so extended test cases do not interfere with staging:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="k">public</span> <span class="k">function</span> <span class="nf">setUp</span><span class="p">()</span><span class="o">:</span> <span class="nx">void</span>
|
||
<span class="p">{</span>
|
||
<span class="k">parent</span><span class="o">::</span><span class="na">setUp</span><span class="p">();</span>
|
||
<span class="nx">helper</span><span class="p">(</span><span class="s1">'text'</span><span class="p">);</span>
|
||
<span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>In addition to these methods, <code class="docutils literal notranslate"><span class="pre">CIUnitTestCase</span></code> also comes with a convenience property for
|
||
parameter-free methods you want run during set up and tear down:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="k">protected</span> <span class="nv">$setUpMethods</span> <span class="o">=</span> <span class="p">[</span>
|
||
<span class="s1">'mockEmail'</span><span class="p">,</span>
|
||
<span class="s1">'mockSession'</span><span class="p">,</span>
|
||
<span class="p">];</span>
|
||
|
||
<span class="k">protected</span> <span class="nv">$tearDownMethods</span> <span class="o">=</span> <span class="p">[];</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>You can see by default these handle the mocking of intrusive services, but your class may override
|
||
that or provide their own:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="k">class</span> <span class="nc">OneOfMyModelsTest</span> <span class="k">extends</span> <span class="nx">CIUnitTestCase</span>
|
||
<span class="p">{</span>
|
||
<span class="k">protected</span> <span class="nv">$tearDownMethods</span> <span class="o">=</span> <span class="p">[</span>
|
||
<span class="s1">'purgeRows'</span><span class="p">,</span>
|
||
<span class="p">];</span>
|
||
|
||
<span class="k">protected</span> <span class="k">function</span> <span class="nf">purgeRows</span><span class="p">()</span>
|
||
<span class="p">{</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">model</span><span class="o">-></span><span class="na">purgeDeleted</span><span class="p">()</span>
|
||
<span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
</div>
|
||
<div class="section" id="additional-assertions">
|
||
<h4>Additional Assertions<a class="headerlink" href="#additional-assertions" title="Permalink to this headline">¶</a></h4>
|
||
<p><code class="docutils literal notranslate"><span class="pre">CIUnitTestCase</span></code> provides additional unit testing assertions that you might find useful.</p>
|
||
<p><strong>assertLogged($level, $expectedMessage)</strong></p>
|
||
<p>Ensure that something you expected to be logged actually was:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="nv">$config</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">LoggerConfig</span><span class="p">();</span>
|
||
<span class="nv">$logger</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">Logger</span><span class="p">(</span><span class="nv">$config</span><span class="p">);</span>
|
||
|
||
<span class="o">...</span> <span class="k">do</span> <span class="nx">something</span> <span class="nx">that</span> <span class="nx">you</span> <span class="nx">expect</span> <span class="nx">a</span> <span class="nb">log</span> <span class="nx">entry</span> <span class="nx">from</span>
|
||
<span class="nv">$logger</span><span class="o">-></span><span class="na">log</span><span class="p">(</span><span class="s1">'error'</span><span class="p">,</span> <span class="s2">"That's no moon"</span><span class="p">);</span>
|
||
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">assertLogged</span><span class="p">(</span><span class="s1">'error'</span><span class="p">,</span> <span class="s2">"That's no moon"</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
<p><strong>assertEventTriggered($eventName)</strong></p>
|
||
<p>Ensure that an event you expected to be triggered actually was:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="nx">Events</span><span class="o">::</span><span class="na">on</span><span class="p">(</span><span class="s1">'foo'</span><span class="p">,</span> <span class="k">function</span><span class="p">(</span><span class="nv">$arg</span><span class="p">)</span> <span class="k">use</span><span class="p">(</span><span class="o">&</span><span class="nv">$result</span><span class="p">)</span> <span class="p">{</span>
|
||
<span class="nv">$result</span> <span class="o">=</span> <span class="nv">$arg</span><span class="p">;</span>
|
||
<span class="p">});</span>
|
||
|
||
<span class="nx">Events</span><span class="o">::</span><span class="na">trigger</span><span class="p">(</span><span class="s1">'foo'</span><span class="p">,</span> <span class="s1">'bar'</span><span class="p">);</span>
|
||
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">assertEventTriggered</span><span class="p">(</span><span class="s1">'foo'</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
<p><strong>assertHeaderEmitted($header, $ignoreCase=false)</strong></p>
|
||
<p>Ensure that a header or cookie was actually emitted:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="nv">$response</span><span class="o">-></span><span class="na">setCookie</span><span class="p">(</span><span class="s1">'foo'</span><span class="p">,</span> <span class="s1">'bar'</span><span class="p">);</span>
|
||
|
||
<span class="nb">ob_start</span><span class="p">();</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">response</span><span class="o">-></span><span class="na">send</span><span class="p">();</span>
|
||
<span class="nv">$output</span> <span class="o">=</span> <span class="nb">ob_get_clean</span><span class="p">();</span> <span class="c1">// in case you want to check the actual body</span>
|
||
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">assertHeaderEmitted</span><span class="p">(</span><span class="s2">"Set-Cookie: foo=bar"</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>Note: the test case with this should be <a class="reference external" href="https://phpunit.readthedocs.io/en/7.4/annotations.html#runinseparateprocess">run as a separate process
|
||
in PHPunit</a>.</p>
|
||
<p><strong>assertHeaderNotEmitted($header, $ignoreCase=false)</strong></p>
|
||
<p>Ensure that a header or cookie was not emitted:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="nv">$response</span><span class="o">-></span><span class="na">setCookie</span><span class="p">(</span><span class="s1">'foo'</span><span class="p">,</span> <span class="s1">'bar'</span><span class="p">);</span>
|
||
|
||
<span class="nb">ob_start</span><span class="p">();</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">response</span><span class="o">-></span><span class="na">send</span><span class="p">();</span>
|
||
<span class="nv">$output</span> <span class="o">=</span> <span class="nb">ob_get_clean</span><span class="p">();</span> <span class="c1">// in case you want to check the actual body</span>
|
||
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">assertHeaderNotEmitted</span><span class="p">(</span><span class="s2">"Set-Cookie: banana"</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>Note: the test case with this should be <a class="reference external" href="https://phpunit.readthedocs.io/en/7.4/annotations.html#runinseparateprocess">run as a separate process
|
||
in PHPunit</a>.</p>
|
||
<p><strong>assertCloseEnough($expected, $actual, $message=’’, $tolerance=1)</strong></p>
|
||
<p>For extended execution time testing, tests that the absolute difference
|
||
between expected and actual time is within the prescribed tolerance.:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="nv">$timer</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">Timer</span><span class="p">();</span>
|
||
<span class="nv">$timer</span><span class="o">-></span><span class="na">start</span><span class="p">(</span><span class="s1">'longjohn'</span><span class="p">,</span> <span class="nb">strtotime</span><span class="p">(</span><span class="s1">'-11 minutes'</span><span class="p">));</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">assertCloseEnough</span><span class="p">(</span><span class="mi">11</span> <span class="o">*</span> <span class="mi">60</span><span class="p">,</span> <span class="nv">$timer</span><span class="o">-></span><span class="na">getElapsedTime</span><span class="p">(</span><span class="s1">'longjohn'</span><span class="p">));</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>The above test will allow the actual time to be either 660 or 661 seconds.</p>
|
||
<p><strong>assertCloseEnoughString($expected, $actual, $message=’’, $tolerance=1)</strong></p>
|
||
<p>For extended execution time testing, tests that the absolute difference
|
||
between expected and actual time, formatted as strings, is within the prescribed tolerance.:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="nv">$timer</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">Timer</span><span class="p">();</span>
|
||
<span class="nv">$timer</span><span class="o">-></span><span class="na">start</span><span class="p">(</span><span class="s1">'longjohn'</span><span class="p">,</span> <span class="nb">strtotime</span><span class="p">(</span><span class="s1">'-11 minutes'</span><span class="p">));</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">assertCloseEnoughString</span><span class="p">(</span><span class="mi">11</span> <span class="o">*</span> <span class="mi">60</span><span class="p">,</span> <span class="nv">$timer</span><span class="o">-></span><span class="na">getElapsedTime</span><span class="p">(</span><span class="s1">'longjohn'</span><span class="p">));</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>The above test will allow the actual time to be either 660 or 661 seconds.</p>
|
||
</div>
|
||
<div class="section" id="accessing-protected-private-properties">
|
||
<h4>Accessing Protected/Private Properties<a class="headerlink" href="#accessing-protected-private-properties" title="Permalink to this headline">¶</a></h4>
|
||
<p>When testing, you can use the following setter and getter methods to access protected and private methods and
|
||
properties in the classes that you are testing.</p>
|
||
<p><strong>getPrivateMethodInvoker($instance, $method)</strong></p>
|
||
<p>Enables you to call private methods from outside the class. This returns a function that can be called. The first
|
||
parameter is an instance of the class to test. The second parameter is the name of the method you want to call.</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="c1">// Create an instance of the class to test</span>
|
||
<span class="nv">$obj</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">Foo</span><span class="p">();</span>
|
||
|
||
<span class="c1">// Get the invoker for the 'privateMethod' method.</span>
|
||
<span class="nv">$method</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">getPrivateMethodInvoker</span><span class="p">(</span><span class="nv">$obj</span><span class="p">,</span> <span class="s1">'privateMethod'</span><span class="p">);</span>
|
||
|
||
<span class="c1">// Test the results</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">assertEquals</span><span class="p">(</span><span class="s1">'bar'</span><span class="p">,</span> <span class="nv">$method</span><span class="p">(</span><span class="s1">'param1'</span><span class="p">,</span> <span class="s1">'param2'</span><span class="p">));</span>
|
||
</pre></div>
|
||
</div>
|
||
<p><strong>getPrivateProperty($instance, $property)</strong></p>
|
||
<p>Retrieves the value of a private/protected class property from an instance of a class. The first parameter is an
|
||
instance of the class to test. The second parameter is the name of the property.</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="c1">// Create an instance of the class to test</span>
|
||
<span class="nv">$obj</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">Foo</span><span class="p">();</span>
|
||
|
||
<span class="c1">// Test the value</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">assertEquals</span><span class="p">(</span><span class="s1">'bar'</span><span class="p">,</span> <span class="nv">$this</span><span class="o">-></span><span class="na">getPrivateProperty</span><span class="p">(</span><span class="nv">$obj</span><span class="p">,</span> <span class="s1">'baz'</span><span class="p">));</span>
|
||
</pre></div>
|
||
</div>
|
||
<p><strong>setPrivateProperty($instance, $property, $value)</strong></p>
|
||
<p>Set a protected value within a class instance. The first parameter is an instance of the class to test. The second
|
||
parameter is the name of the property to set the value of. The third parameter is the value to set it to:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="c1">// Create an instance of the class to test</span>
|
||
<span class="nv">$obj</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">Foo</span><span class="p">();</span>
|
||
|
||
<span class="c1">// Set the value</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">setPrivateProperty</span><span class="p">(</span><span class="nv">$obj</span><span class="p">,</span> <span class="s1">'baz'</span><span class="p">,</span> <span class="s1">'oops!'</span><span class="p">);</span>
|
||
|
||
<span class="c1">// Do normal testing...</span>
|
||
</pre></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<div class="section" id="mocking-services">
|
||
<h3><a class="toc-backref" href="#id7">Mocking Services</a><a class="headerlink" href="#mocking-services" title="Permalink to this headline">¶</a></h3>
|
||
<p>You will often find that you need to mock one of the services defined in <strong>app/Config/Services.php</strong> to limit
|
||
your tests to only the code in question, while simulating various responses from the services. This is especially
|
||
true when testing controllers and other integration testing. The <strong>Services</strong> class provides two methods to make this
|
||
simple: <code class="docutils literal notranslate"><span class="pre">injectMock()</span></code>, and <code class="docutils literal notranslate"><span class="pre">reset()</span></code>.</p>
|
||
<p><strong>injectMock()</strong></p>
|
||
<p>This method allows you to define the exact instance that will be returned by the Services class. You can use this to
|
||
set properties of a service so that it behaves in a certain way, or replace a service with a mocked class.</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="k">public</span> <span class="k">function</span> <span class="nf">testSomething</span><span class="p">()</span>
|
||
<span class="p">{</span>
|
||
<span class="nv">$curlrequest</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">getMockBuilder</span><span class="p">(</span><span class="s1">'CodeIgniter\HTTP\CURLRequest'</span><span class="p">)</span>
|
||
<span class="o">-></span><span class="na">setMethods</span><span class="p">([</span><span class="s1">'request'</span><span class="p">])</span>
|
||
<span class="o">-></span><span class="na">getMock</span><span class="p">();</span>
|
||
<span class="nx">Services</span><span class="o">::</span><span class="na">injectMock</span><span class="p">(</span><span class="s1">'curlrequest'</span><span class="p">,</span> <span class="nv">$curlrequest</span><span class="p">);</span>
|
||
|
||
<span class="c1">// Do normal testing here....</span>
|
||
<span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>The first parameter is the service that you are replacing. The name must match the function name in the Services
|
||
class exactly. The second parameter is the instance to replace it with.</p>
|
||
<p><strong>reset()</strong></p>
|
||
<p>Removes all mocked classes from the Services class, bringing it back to its original state.</p>
|
||
<div class="admonition note">
|
||
<p class="admonition-title">Note</p>
|
||
<p>The <code class="docutils literal notranslate"><span class="pre">Email</span></code> and <code class="docutils literal notranslate"><span class="pre">Session</span></code> services are mocked by default to prevent intrusive testing behavior. To prevent these from mocking remove their method callback from the class property: <code class="docutils literal notranslate"><span class="pre">$setUpMethods</span> <span class="pre">=</span> <span class="pre">['mockEmail',</span> <span class="pre">'mockSession'];</span></code></p>
|
||
</div>
|
||
</div>
|
||
<div class="section" id="stream-filters">
|
||
<h3><a class="toc-backref" href="#id8">Stream Filters</a><a class="headerlink" href="#stream-filters" title="Permalink to this headline">¶</a></h3>
|
||
<p><strong>CITestStreamFilter</strong> provides an alternate to these helper methods.</p>
|
||
<p>You may need to test things that are difficult to test. Sometimes, capturing a stream, like PHP’s own STDOUT, or STDERR,
|
||
might be helpful. The <code class="docutils literal notranslate"><span class="pre">CITestStreamFilter</span></code> helps you capture the output from the stream of your choice.</p>
|
||
<p>An example demonstrating this inside one of your test cases:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="k">public</span> <span class="k">function</span> <span class="nf">setUp</span><span class="p">()</span>
|
||
<span class="p">{</span>
|
||
<span class="nx">CITestStreamFilter</span><span class="o">::</span><span class="nv">$buffer</span> <span class="o">=</span> <span class="s1">''</span><span class="p">;</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">stream_filter</span> <span class="o">=</span> <span class="nb">stream_filter_append</span><span class="p">(</span><span class="nx">STDOUT</span><span class="p">,</span> <span class="s1">'CITestStreamFilter'</span><span class="p">);</span>
|
||
<span class="p">}</span>
|
||
|
||
<span class="k">public</span> <span class="k">function</span> <span class="nf">tearDown</span><span class="p">()</span>
|
||
<span class="p">{</span>
|
||
<span class="nb">stream_filter_remove</span><span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">stream_filter</span><span class="p">);</span>
|
||
<span class="p">}</span>
|
||
|
||
<span class="k">public</span> <span class="k">function</span> <span class="nf">testSomeOutput</span><span class="p">()</span>
|
||
<span class="p">{</span>
|
||
<span class="nx">CLI</span><span class="o">::</span><span class="na">write</span><span class="p">(</span><span class="s1">'first.'</span><span class="p">);</span>
|
||
<span class="nv">$expected</span> <span class="o">=</span> <span class="s2">"first.</span><span class="se">\n</span><span class="s2">"</span><span class="p">;</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">assertEquals</span><span class="p">(</span><span class="nv">$expected</span><span class="p">,</span> <span class="nx">CITestStreamFilter</span><span class="o">::</span><span class="nv">$buffer</span><span class="p">);</span>
|
||
<span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
</div>
|
||
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|
||
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