[TEST] added test for kick

tests/events_test.ts

@@ -131,6 +131,48 @@ Deno.test("events - ldm", async () => {
   await NatsServer.stopAll(cluster);
 });
 
+Deno.test("events - kick", async () => {
+  const cluster = await NatsServer.cluster(2, {
+    system_account: "SYS",
+    no_auth_user: "a",
+    accounts: {
+      A: {
+        users: [{ user: "a", password: "a" }],
+      },
+      SYS: {
+        users: [{ user: "sys", password: "sys" }],
+      },
+    },
+  });
+
+  if (await cluster[0].notCompatible("2.10.0")) {
+    await NatsServer.stopAll(cluster);
+  }
+
+  const a = await connect(
+    {
+      servers: `127.0.0.1:${cluster[0].port}`,
+      user: "a",
+      pass: "a",
+      reconnect: false,
+    },
+  );
+  const sys = await connect(
+    { servers: `127.0.0.1:${cluster[0].port}`, user: "sys", pass: "sys" },
+  );
+
+  await sys.request(
+    `$SYS.REQ.SERVER.${a.info?.server_id}.KICK`,
+    JSON.stringify(
+      { CID: a.info?.client_id },
+    ),
+  );
+
+  await a.closed();
+  await sys.close();
+  await NatsServer.stopAll(cluster);
+});
+
 Deno.test("events - ignore server updates", async () => {
   const cluster = await NatsServer.cluster(1);
   const nc = await connect(

tests/helpers/launcher.ts

@@ -14,14 +14,16 @@
  */
 // deno-lint-ignore-file no-explicit-any
 import * as path from "https://deno.land/std@0.200.0/path/mod.ts";
-import { rgb24 } from "https://deno.land/std@0.200.0/fmt/colors.ts";
+import { rgb24, yellow } from "https://deno.land/std@0.200.0/fmt/colors.ts";
 import { check, jsopts } from "./mod.ts";
 import {
+  compare,
   Deferred,
   deferred,
   delay,
   extend,
   nuid,
+  parseSemVer,
   timeout,
 } from "../../nats-base-client/internal_mod.ts";
 
@@ -621,6 +623,19 @@ export class NatsServer implements PortInfo {
       throw err;
     }
   }
+
+  async notCompatible(version = "2.3.3"): Promise<boolean> {
+    const varz = await this.varz() as unknown as Record<string, string>;
+    const sv = parseSemVer(varz.version);
+    if (compare(sv, parseSemVer(version)) < 0) {
+      const m = new TextEncoder().encode(yellow(
+        `skipping test as server (${varz.version}) doesn't implement required feature from ${version} `,
+      ));
+      await Deno.stdout.write(m);
+      return true;
+    }
+    return false;
+  }
 }
 
 // @ts-ignore: any is exactly what we need here