Ruleset::processRuleset(): add tests for handling <autoload> directives

tests/Core/Ruleset/Fixtures/ProcessRulesetAutoloadLoadAlways.1.php

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+<?php
+/**
+ * Test fixture.
+ *
+ * This file is only used to check whether it has been `include`d.
+ *
+ * @see \PHP_CodeSniffer\Tests\Core\Ruleset\ProcessRulesetAutoloadTest
+ */

tests/Core/Ruleset/Fixtures/ProcessRulesetAutoloadLoadAlways.2.php

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+<?php
+/**
+ * Test fixture.
+ *
+ * This file is only used to check whether it has been `include`d.
+ *
+ * @see \PHP_CodeSniffer\Tests\Core\Ruleset\ProcessRulesetAutoloadTest
+ */

tests/Core/Ruleset/Fixtures/ProcessRulesetAutoloadLoadAlways.3.php

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+<?php
+/**
+ * Test fixture.
+ *
+ * This file is only used to check whether it has been `include`d.
+ *
+ * @see \PHP_CodeSniffer\Tests\Core\Ruleset\ProcessRulesetAutoloadTest
+ */

tests/Core/Ruleset/Fixtures/ProcessRulesetAutoloadLoadAlways.4.php

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+<?php
+/**
+ * Test fixture.
+ *
+ * This file is only used to check whether it has been `include`d.
+ *
+ * @see \PHP_CodeSniffer\Tests\Core\Ruleset\ProcessRulesetAutoloadTest
+ */

tests/Core/Ruleset/Fixtures/ProcessRulesetAutoloadLoadPhpcbfOnly.php

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+<?php
+/**
+ * Test fixture.
+ *
+ * This file is only used to check whether it has been `include`d.
+ *
+ * @see \PHP_CodeSniffer\Tests\Core\Ruleset\ProcessRulesetAutoloadTest
+ */

tests/Core/Ruleset/Fixtures/ProcessRulesetAutoloadLoadPhpcsOnly.php

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+<?php
+/**
+ * Test fixture.
+ *
+ * This file is only used to check whether it has been `include`d.
+ *
+ * @see \PHP_CodeSniffer\Tests\Core\Ruleset\ProcessRulesetAutoloadTest
+ */

tests/Core/Ruleset/ProcessRulesetAutoloadFileNotFoundTest.xml

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+<?xml version="1.0"?>
+<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="ProcessRulesetAutoloadTest" xsi:noNamespaceSchemaLocation="https://raw.githubusercontent.com/PHPCSStandards/PHP_CodeSniffer/master/phpcs.xsd">
+
+    <autoload>./tests/Core/Ruleset/Fixtures/ThisFileDoesNotExist.php</autoload>
+
+    <!-- Prevent a "no sniff were registered" error. -->
+    <rule ref="Generic.PHP.BacktickOperator"/>
+</ruleset>

tests/Core/Ruleset/ProcessRulesetAutoloadTest.php

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+<?php
+/**
+ * Test handling of <autoload> instructions.
+ *
+ * @author    Juliette Reinders Folmer <[email protected]>
+ * @copyright 2024 PHPCSStandards and contributors
+ * @license   https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
+ */
+
+namespace PHP_CodeSniffer\Tests\Core\Ruleset;
+
+use PHP_CodeSniffer\Ruleset;
+use PHP_CodeSniffer\Tests\ConfigDouble;
+use PHP_CodeSniffer\Tests\Core\Ruleset\AbstractRulesetTestCase;
+
+/**
+ * Test handling of <autoload> instructions.
+ *
+ * Note: these tests need to run in separate processes as otherwise we cannot
+ * reliably determine whether or not the correct files were loaded as the
+ * underlying code uses `include_once`.
+ *
+ * @runTestsInSeparateProcesses
+ * @preserveGlobalState         disabled
+ *
+ * @covers \PHP_CodeSniffer\Ruleset::processRuleset
+ */
+final class ProcessRulesetAutoloadTest extends AbstractRulesetTestCase
+{
+
+
+    /**
+     * Verify that in CS mode, phpcs-only <autoload> directives are respected and phpcbf-only <autoload>
+     * directives are ignored.
+     *
+     * @return void
+     */
+    public function testShouldProcessAutoloadCsonly()
+    {
+        if (PHP_CODESNIFFER_CBF === true) {
+            $this->markTestSkipped('This test needs CS mode to run');
+        }
+
+        $originallyIncludes = get_included_files();
+
+        // Set up the ruleset.
+        $standard = __DIR__.'/ProcessRulesetAutoloadTest.xml';
+        $config   = new ConfigDouble(["--standard=$standard"]);
+        new Ruleset($config);
+
+        $finalIncludes = get_included_files();
+        $diff          = array_diff($finalIncludes, $originallyIncludes);
+
+        $this->assertContains(
+            __DIR__.str_replace('/', DIRECTORY_SEPARATOR, '/Fixtures/ProcessRulesetAutoloadLoadAlways.1.php'),
+            $diff,
+            'ProcessRulesetAutoloadLoadAlways.1.php autoload file was not loaded'
+        );
+        $this->assertContains(
+            __DIR__.str_replace('/', DIRECTORY_SEPARATOR, '/Fixtures/ProcessRulesetAutoloadLoadAlways.2.php'),
+            $diff,
+            'ProcessRulesetAutoloadLoadAlways.2.php autoload file was not loaded'
+        );
+        $this->assertContains(
+            __DIR__.str_replace('/', DIRECTORY_SEPARATOR, '/Fixtures/ProcessRulesetAutoloadLoadAlways.3.php'),
+            $diff,
+            'ProcessRulesetAutoloadLoadAlways.3.php autoload file was not loaded'
+        );
+        $this->assertContains(
+            __DIR__.str_replace('/', DIRECTORY_SEPARATOR, '/Fixtures/ProcessRulesetAutoloadLoadAlways.4.php'),
+            $diff,
+            'ProcessRulesetAutoloadLoadAlways.4.php autoload file was not loaded'
+        );
+        $this->assertContains(
+            __DIR__.str_replace('/', DIRECTORY_SEPARATOR, '/Fixtures/ProcessRulesetAutoloadLoadPhpcsOnly.php'),
+            $diff,
+            'ProcessRulesetAutoloadLoadPhpcsOnly.php autoload file was not loaded'
+        );
+        $this->assertNotContains(
+            __DIR__.str_replace('/', DIRECTORY_SEPARATOR, '/Fixtures/ProcessRulesetAutoloadLoadPhpcbfOnly.php'),
+            $diff,
+            'ProcessRulesetAutoloadLoadPhpcbfOnly.php autoload file was loaded, while it shouldn\'t have been'
+        );
+
+    }//end testShouldProcessAutoloadCsonly()
+
+
+    /**
+     * Verify that in CBF mode, phpcbf-only <autoload> directives are respected and phpcs-only <autoload>
+     * directives are ignored.
+     *
+     * @group CBF
+     *
+     * @return void
+     */
+    public function testShouldProcessAutoloadCbfonly()
+    {
+        if (PHP_CODESNIFFER_CBF === false) {
+            $this->markTestSkipped('This test needs CBF mode to run');
+        }
+
+        $originallyIncludes = get_included_files();
+
+        // Set up the ruleset.
+        $standard = __DIR__.'/ProcessRulesetAutoloadTest.xml';
+        $config   = new ConfigDouble(["--standard=$standard"]);
+        new Ruleset($config);
+
+        $finalIncludes = get_included_files();
+        $diff          = array_diff($finalIncludes, $originallyIncludes);
+
+        $this->assertContains(
+            __DIR__.str_replace('/', DIRECTORY_SEPARATOR, '/Fixtures/ProcessRulesetAutoloadLoadAlways.1.php'),
+            $diff,
+            'ProcessRulesetAutoloadLoadAlways.1.php autoload file was not loaded'
+        );
+        $this->assertContains(
+            __DIR__.str_replace('/', DIRECTORY_SEPARATOR, '/Fixtures/ProcessRulesetAutoloadLoadAlways.2.php'),
+            $diff,
+            'ProcessRulesetAutoloadLoadAlways.2.php autoload file was not loaded'
+        );
+        $this->assertContains(
+            __DIR__.str_replace('/', DIRECTORY_SEPARATOR, '/Fixtures/ProcessRulesetAutoloadLoadAlways.3.php'),
+            $diff,
+            'ProcessRulesetAutoloadLoadAlways.3.php autoload file was not loaded'
+        );
+        $this->assertContains(
+            __DIR__.str_replace('/', DIRECTORY_SEPARATOR, '/Fixtures/ProcessRulesetAutoloadLoadAlways.4.php'),
+            $diff,
+            'ProcessRulesetAutoloadLoadAlways.4.php autoload file was not loaded'
+        );
+        $this->assertNotContains(
+            __DIR__.str_replace('/', DIRECTORY_SEPARATOR, '/Fixtures/ProcessRulesetAutoloadLoadPhpcsOnly.php'),
+            $diff,
+            'ProcessRulesetAutoloadLoadPhpcsOnly.php autoload file was loaded, while it shouldn\'t have been'
+        );
+        $this->assertContains(
+            __DIR__.str_replace('/', DIRECTORY_SEPARATOR, '/Fixtures/ProcessRulesetAutoloadLoadPhpcbfOnly.php'),
+            $diff,
+            'ProcessRulesetAutoloadLoadPhpcbfOnly.php autoload file was not loaded'
+        );
+
+    }//end testShouldProcessAutoloadCbfonly()
+
+
+    /**
+     * Test an exception is thrown when the <autoload> directive points to a file which doesn't exist.
+     *
+     * @return void
+     */
+    public function testFileNotFoundException()
+    {
+        $exceptionMsg = 'The specified autoload file "./tests/Core/Ruleset/Fixtures/ThisFileDoesNotExist.php" does not exist';
+        $this->expectRuntimeExceptionMessage($exceptionMsg);
+
+        // Set up the ruleset.
+        $standard = __DIR__.'/ProcessRulesetAutoloadFileNotFoundTest.xml';
+        $config   = new ConfigDouble(["--standard=$standard"]);
+        new Ruleset($config);
+
+    }//end testFileNotFoundException()
+
+
+}//end class

tests/Core/Ruleset/ProcessRulesetAutoloadTest.xml

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+<?xml version="1.0"?>
+<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="ProcessRulesetAutoloadTest" xsi:noNamespaceSchemaLocation="https://raw.githubusercontent.com/PHPCSStandards/PHP_CodeSniffer/master/phpcs.xsd">
+
+    <file>.</file>
+
+    <!--
+    ###############################################
+    # Neither set.                                #
+    # Testing various ways paths can be provided. #
+    ###############################################
+    -->
+    <!-- Path relative to directory containing the ruleset. -->
+    <autoload>./Fixtures/ProcessRulesetAutoloadLoadAlways.1.php</autoload>
+    <autoload>Fixtures/ProcessRulesetAutoloadLoadAlways.2.php</autoload>
+
+    <!-- Path relative to command directory. -->
+    <autoload>./tests/Core/Ruleset/Fixtures/ProcessRulesetAutoloadLoadAlways.3.php</autoload>
+    <autoload>tests/Core/Ruleset/Fixtures/ProcessRulesetAutoloadLoadAlways.4.php</autoload>
+
+    <!--
+    ###################
+    # phpcs-only set. #
+    ###################
+    -->
+    <autoload phpcs-only="true">./tests/Core/Ruleset/Fixtures/ProcessRulesetAutoloadLoadPhpcsOnly.php</autoload>
+
+    <!--
+    ####################
+    # phpcbf-only set. #
+    ####################
+    -->
+    <autoload phpcbf-only="true">./tests/Core/Ruleset/Fixtures/ProcessRulesetAutoloadLoadPhpcbfOnly.php</autoload>
+
+
+    <!-- Prevent a "no sniff were registered" error. -->
+    <rule ref="Generic.PHP.BacktickOperator"/>
+</ruleset>