test: standalone drop-in test and docker-based integration test

2026-09-13 18:08:58 +02:00
parent 10a2f05c31
commit f35ea19455
4 changed files with 334 additions and 0 deletions
@@ -0,0 +1,121 @@
+<?php
+/**
+ * Standalone test for the wp-recache-cache.php drop-in cookie logic.
+ *
+ * Run with plain PHP:
+ *   php tests/test-dropin.php
+ *
+ * The drop-in uses `return;` to skip cache. Since we can't intercept
+ * `return` from an include, we generate a test variant that sets a
+ * global flag instead. The flag mirrors the exact same branching logic
+ * as the production drop-in.
+ */
+
+$pass = 0;
+$fail = 0;
+
+/**
+ * Generate a test drop-in that sets $_wp_recache_exited instead of returning.
+ * Uses identical cookie-matching logic to the real drop-in.
+ */
+function write_test_dropin(array $rejected_cookies): string {
+    $cookies_php = var_export($rejected_cookies, true);
+
+    $content = '<?php
+$_wp_recache_exited = false;
+$rejected_cookies = ' . $cookies_php . ';
+
+foreach ($rejected_cookies as $cookie) {
+    $cookie = trim($cookie);
+    if ($cookie === \'\') {
+        continue;
+    }
+
+    if (substr($cookie, -1) === \'*\') {
+        $prefix = substr($cookie, 0, -1);
+        foreach ($_COOKIE as $name => $value) {
+            if (strpos($name, $prefix) === 0) {
+                $_wp_recache_exited = true;
+                return;
+            }
+        }
+    } else {
+        if (isset($_COOKIE[$cookie])) {
+            $_wp_recache_exited = true;
+            return;
+        }
+    }
+}
+';
+
+    $tmp = sys_get_temp_dir() . '/wp-recache-test-' . getmypid();
+    if (!is_dir($tmp)) {
+        mkdir($tmp, 0777, true);
+    }
+    $file = $tmp . '/dropin.php';
+    file_put_contents($file, $content);
+    return $file;
+}
+
+function test(string $name, array $cookies, array $request, array $server, bool $expect_exited): void {
+    global $pass, $fail;
+
+    $_COOKIE = $request;
+    $_SERVER = array_merge([
+        'REQUEST_METHOD' => 'GET',
+        'QUERY_STRING'   => '',
+        'REQUEST_URI'    => '/test/',
+        'HTTP_HOST'      => 'example.com',
+    ], $server);
+
+    $_wp_recache_exited = false;
+    $file = write_test_dropin($cookies);
+    include $file;
+    @unlink($file);
+
+    if ($_wp_recache_exited !== $expect_exited) {
+        echo "  FAIL: $name\n";
+        echo "    expected " . ($expect_exited ? 'exited' : 'fell through') . ", got " . ($_wp_recache_exited ? 'exited' : 'fell through') . "\n";
+        $fail++;
+    } else {
+        echo "  PASS: $name\n";
+        $pass++;
+    }
+}
+
+$defaults = [
+    'woocommerce_items_in_cart',
+    'wp_woocommerce_session_*',
+    'wp-postpass',
+    'comment_author_*',
+    'wordpress_*',
+];
+
+echo "=== Exact match ===\n";
+test('wp-postpass present → exits', $defaults, ['wp-postpass' => 'abc123'], [], true);
+test('woocommerce_items_in_cart present → exits', $defaults, ['woocommerce_items_in_cart' => 'yes'], [], true);
+
+echo "\n=== Prefix match ===\n";
+test('comment_author_12345 matches comment_author_*', $defaults, ['comment_author_12345' => 'test'], [], true);
+test('wp_woocommerce_session_abc matches wp_woocommerce_session_*', $defaults, ['wp_woocommerce_session_abc123' => 'xyz'], [], true);
+test('wordpress_logged_in_xyz matches wordpress_*', $defaults, ['wordpress_logged_in_xyz' => '1'], [], true);
+
+echo "\n=== No match → falls through ===\n";
+test('unrelated cookie → falls through', $defaults, ['session_id' => 'abc123'], [], false);
+test('empty cookies → falls through', $defaults, [], [], false);
+
+echo "\n=== Edge cases ===\n";
+test('whitespace-only cookie name skipped', array_merge(['  '], $defaults), ['wp-postpass' => 'val'], [], true);
+test('empty rejected list → falls through', [], ['anything' => '1'], [], false);
+
+echo "\n=== POST method → exits before cookie check ===\n";
+test('POST request exits early', $defaults, ['wp-postpass' => 'val'], ['REQUEST_METHOD' => 'POST'], true);
+
+echo "\n=== Query string → exits before cookie check ===\n";
+test('Query string present exits early', $defaults, ['wp-postpass' => 'val'], ['QUERY_STRING' => 'foo=bar'], true);
+
+$tmp = sys_get_temp_dir() . '/wp-recache-test-' . getmypid();
+@rmdir($tmp);
+
+echo "\n--- Results: $pass passed, $fail failed ---\n";
+exit($fail > 0 ? 1 : 0);