v2 ci: add Bun and Deno integration tests (#1607)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

test/integration/test/server/bun.test.ts

@@ -0,0 +1,57 @@
+/**
+ * Bun integration test
+ *
+ * Verifies the MCP server and client packages work natively on Bun.
+ * Run with: bun test test/server/bun.test.ts
+ */
+
+import { Client, StreamableHTTPClientTransport } from '@modelcontextprotocol/client';
+import { McpServer, WebStandardStreamableHTTPServerTransport } from '@modelcontextprotocol/server';
+// eslint-disable-next-line import/no-unresolved
+import { afterAll, beforeAll, describe, expect, it } from 'bun:test';
+import * as z from 'zod/v4';
+
+describe('MCP on Bun', () => {
+    let httpServer: ReturnType<typeof Bun.serve>;
+    let transport: WebStandardStreamableHTTPServerTransport;
+
+    beforeAll(async () => {
+        const mcpServer = new McpServer({ name: 'test-server', version: '1.0.0' });
+
+        mcpServer.registerTool(
+            'greet',
+            {
+                description: 'Greet someone',
+                inputSchema: z.object({ name: z.string() })
+            },
+            async ({ name }) => ({
+                content: [{ type: 'text' as const, text: `Hello, ${name}!` }]
+            })
+        );
+
+        transport = new WebStandardStreamableHTTPServerTransport();
+        await mcpServer.connect(transport);
+
+        httpServer = Bun.serve({
+            port: 0,
+            fetch: req => transport.handleRequest(req)
+        });
+    });
+
+    afterAll(async () => {
+        await transport?.close();
+        httpServer?.stop();
+    });
+
+    it('should handle MCP tool calls', async () => {
+        const client = new Client({ name: 'test-client', version: '1.0.0' });
+        const clientTransport = new StreamableHTTPClientTransport(new URL(`http://localhost:${httpServer.port}`));
+
+        await client.connect(clientTransport);
+
+        const result = await client.callTool({ name: 'greet', arguments: { name: 'Bun' } });
+        expect(result.content).toEqual([{ type: 'text', text: 'Hello, Bun!' }]);
+
+        await client.close();
+    });
+});

test/integration/test/server/deno.test.ts

@@ -0,0 +1,53 @@
+/**
+ * Deno integration test
+ *
+ * Verifies the MCP server and client packages work natively on Deno.
+ * Run with: deno test --no-check --allow-net --allow-read --allow-env test/server/deno.test.ts
+ */
+
+import assert from 'node:assert/strict';
+
+import { Client, StreamableHTTPClientTransport } from '@modelcontextprotocol/client';
+import { McpServer, WebStandardStreamableHTTPServerTransport } from '@modelcontextprotocol/server';
+import * as z from 'zod/v4';
+
+Deno.test({
+    name: 'MCP tool calls work on Deno',
+    sanitizeOps: false,
+    sanitizeResources: false,
+    async fn() {
+        const mcpServer = new McpServer({ name: 'test-server', version: '1.0.0' });
+
+        mcpServer.registerTool(
+            'greet',
+            {
+                description: 'Greet someone',
+                inputSchema: z.object({ name: z.string() })
+            },
+            async ({ name }) => ({
+                content: [{ type: 'text' as const, text: `Hello, ${name}!` }]
+            })
+        );
+
+        const transport = new WebStandardStreamableHTTPServerTransport();
+        await mcpServer.connect(transport);
+
+        const httpServer = Deno.serve({ port: 0 }, req => transport.handleRequest(req));
+        const port = httpServer.addr.port;
+
+        try {
+            const client = new Client({ name: 'test-client', version: '1.0.0' });
+            const clientTransport = new StreamableHTTPClientTransport(new URL(`http://localhost:${port}`));
+
+            await client.connect(clientTransport);
+
+            const result = await client.callTool({ name: 'greet', arguments: { name: 'Deno' } });
+            assert.deepStrictEqual(result.content, [{ type: 'text', text: 'Hello, Deno!' }]);
+
+            await client.close();
+        } finally {
+            await transport.close();
+            await httpServer.shutdown();
+        }
+    }
+});