添加对不同节流驱动的单元测试

tests/ThrottleDriverTest.php

@@ -0,0 +1,46 @@
+<?php
+declare(strict_types=1);
+
+namespace tests;
+
+use think\middleware\throttle\CounterFixed;
+use think\middleware\throttle\CounterSlider;
+use think\middleware\throttle\LeakyBucket;
+use think\middleware\throttle\TokenBucket;
+
+/**
+ * 不同节流驱动单元测试
+ */
+class ThrottleDriverTest extends Base
+{
+    function driver_run(string $derive_name) {
+        $config = $this->get_default_throttle_config();
+        $config['driver_name'] = $derive_name;
+        $config['visit_rate'] = '60/m';
+        $this->set_throttle_config($config);
+        $allowCount = 0;
+        for ($i = 0; $i < 200; $i++) {
+            $request = $this->create_request('/');
+            if ($this->visit_with_http_code($request)) {
+                $allowCount++;
+            }
+        }
+        return $allowCount;
+    }
+
+    function test_counter_fixed() {
+        $this->assertEquals(60, $this->driver_run(CounterFixed::class));
+    }
+
+    function test_counter_slider() {
+        $this->assertEquals(60, $this->driver_run(CounterSlider::class));
+    }
+
+    function test_leaky_bucket() {
+        // 漏桶算法，速率 1/s
+        $this->assertEquals(1, $this->driver_run(LeakyBucket::class));
+    }
+    function test_token_bucket() {
+        $this->assertEquals(60, $this->driver_run(TokenBucket::class));
+    }
+}