Add unit tests for got_mod_rewrite() in src/wp-admin/includes/misc.php

Reference: https://core.trac.wordpress.org/ticket/65134

Author: Paul Bearne

tests/phpunit/tests/admin/includes/misc/gotModRewrite.php

@@ -0,0 +1,91 @@
+<?php
+
+/**
+ * Tests for the got_mod_rewrite() function.
+ *
+ * @group admin
+ * @group rewrite
+ *
+ * @covers ::got_mod_rewrite
+ */
+class Tests_got_mod_rewrite extends WP_UnitTestCase {
+
+	/**
+	 * Tests that got_mod_rewrite() correctly detects mod_rewrite based on server and filters.
+	 *
+	 * @ticket 65134
+	 *
+	 * @dataProvider data_got_mod_rewrite
+	 *
+	 * @param bool $expected         The expected result from got_mod_rewrite().
+	 * @param bool $apache_loaded    Whether mod_rewrite is reported as loaded by Apache.
+	 * @param bool|null $filter_value Optional value to return via the 'got_rewrite' filter.
+	 */
+	public function test_got_mod_rewrite( $expected, $apache_loaded, $filter_value = null ) {
+		// Mock the Apache module check by filtering 'got_rewrite' if needed,
+		// but since got_mod_rewrite calls apache_mod_loaded which we can't easily mock
+		// without a framework, we rely on the filter for full control.
+
+		if ( null !== $filter_value ) {
+			add_filter( 'got_rewrite', array( $this, 'filter_got_rewrite' ) );
+			$this->temp_filter_value = $filter_value;
+		}
+
+		// If we are NOT filtering, we need to be aware of the environment.
+		// However, the function's internal logic is:
+		// return apply_filters( 'got_rewrite', apache_mod_loaded( 'mod_rewrite', true ) );
+		// Since we want to test the function's behavior across different scenarios,
+		// we use the filter to simulate the different outcomes of the internal check.
+
+		$this->assertSame( $expected, got_mod_rewrite() );
+
+		if ( null !== $filter_value ) {
+			remove_filter( 'got_rewrite', array( $this, 'filter_got_rewrite' ) );
+			unset( $this->temp_filter_value );
+		}
+	}
+
+	/**
+	 * Data provider for test_got_mod_rewrite.
+	 *
+	 * @return array[] {
+	 *     @type bool      $expected      The expected result.
+	 *     @type bool      $apache_loaded Whether mod_rewrite is loaded (simulated via filter).
+	 *     @type bool|null $filter_value  The value to return from the filter.
+	 * }
+	 */
+	public function data_got_mod_rewrite() {
+		return array(
+			'Default behavior (should match filter or internal check)' => array(
+				'expected'      => true,
+				'apache_loaded' => true,
+				'filter_value'  => true,
+			),
+			'Filter returns false'                                     => array(
+				'expected'      => false,
+				'apache_loaded' => true,
+				'filter_value'  => false,
+			),
+			'Filter returns true even if Apache check might be false'  => array(
+				'expected'      => true,
+				'apache_loaded' => false,
+				'filter_value'  => true,
+			),
+		);
+	}
+
+	/**
+	 * Temporary property for filter value.
+	 * @var bool
+	 */
+	private $temp_filter_value;
+
+	/**
+	 * Filter callback for 'got_rewrite'.
+	 *
+	 * @return bool
+	 */
+	public function filter_got_rewrite() {
+		return $this->temp_filter_value;
+	}
+}