fatsify核心功能示例测试!!!

node_modules/fastify/test/handler-context.test.js

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+'use strict'
+const { test } = require('node:test')
+const { kRouteContext } = require('../lib/symbols')
+const fastify = require('..')
+
+test('handlers receive correct `this` context', async (t) => {
+  t.plan(4)
+
+  // simulate plugin that uses fastify-plugin
+  const plugin = function (instance, opts, done) {
+    instance.decorate('foo', 'foo')
+    done()
+  }
+  plugin[Symbol.for('skip-override')] = true
+
+  const instance = fastify()
+  instance.register(plugin)
+
+  instance.get('/', function (req, reply) {
+    t.assert.ok(this.foo)
+    t.assert.strictEqual(this.foo, 'foo')
+    reply.send()
+  })
+
+  await instance.inject('/')
+
+  t.assert.ok(instance.foo)
+  t.assert.strictEqual(instance.foo, 'foo')
+})
+
+test('handlers have access to the internal context', async (t) => {
+  t.plan(5)
+
+  const instance = fastify()
+  instance.get('/', { config: { foo: 'bar' } }, function (req, reply) {
+    t.assert.ok(reply[kRouteContext])
+    t.assert.ok(reply[kRouteContext].config)
+    t.assert.ok(typeof reply[kRouteContext].config, Object)
+    t.assert.ok(reply[kRouteContext].config.foo)
+    t.assert.strictEqual(reply[kRouteContext].config.foo, 'bar')
+    reply.send()
+  })
+
+  await instance.inject('/')
+})